Would anyone be interested in an roots blower manifold if I manufactured one?

[nateleduc]

I've been tinkering with the idea on and off for a bit about casting a intake for a Whipple 140ax/170. I've talked with a buddy of mine who is a fabricator. Both him and I have LTx based cars so it would be beneficial for the both of us if we at least created a prototype. Having plenty of aluminum on hand at the moment and a spare LT1 (cracked block, heads need a lot of work) has really sparked the idea of casting one using a spare aluminum head/intake.

After posting a thread about the idea of it we received a lot of positive encouragement as well as some issues that would need to be addressed. In my head I have the following plan if the market is high enough to produce a few for sale.

The intake manifold would be very similar to the one Cornell built, but rather than CNC, it be cast aluminum to keep the cost down.

Here is the proposed intake:


The runners would be identical in size to the stock LT1 intake.
Bolt on to the intake/heads without machining or modification.
All bolts on intake pre tapped with helicoil inserts.
Pre-drilled for Vac lines and IAT.
Supercharger mounting plate pre-drilled for 140ax/170 SC
Custom Fuel rail included - similar to Cornell's.
Elbow to match SC to throttle body.
gasket for both the SC mounting plate as well as the SC

Lastly I'm contemplating offering a meth dual nozzle kit built into the intake. Both would be housed inside the intake body. One for the front, one for the back.

So far the price depending on included accessories would be roughly $700-1100, depending on production/time cost. The plan is to create the prototype for my car, then a production build, one for his engine to get an idea of the production cost. This isn't planned to be a full bolt on kit, and will require other modification to work (forged block, injectors, pump, the SC itself, 8 rib conversion, etc)

Your input is welcome, along with any features you think would be beneficial.

[Madman337]

At the very least I would love to see it!

[Sahara54]

I'm with Madman. I would love to see it brought to the LTX market just as another option and to let everyone know were still a player in the HP game.

[CamaroZGuy]

I would love to see a prototype and how its set up. cant say that i would be in the market for one since i have a Procharger, but other ideas i have with my spare block it would be nice to have the option for a whipple.

[nateleduc]

What do you think about the built in meth nozzles? I figure that would be great for pushing high boost, with out having to do any real modifications.

[popo8]

I say start simple.. try without the nozzles for the prototype... lets see how it comes out and works.. THEN, look at improving when that is successful. I do understand your excitement though, and more new products to the LTX market would be awesome.

[shownomercy]

I would be wary of helicoils and a part that will be taken on/off repeatedly or often.

As far as meth nozzles, add the correct tapped hole and allow users to either plug it, or put in their desired rated nozzle. A guy really pushing the blower will want more than a guy just making a couple PSI etc.

[MeanTA]

What about time-sert's instead of helicoil's? Little more expensive but more reliable.

[nateleduc]

I'm on a mobile or else if quote and then respond. Time-serts what the word I was looking for. I wanted something, because I've stripped more than my fair share of aluminum and striping a thread on a custom intake would suck. I like the idea of being able to plug or add your own nozzles, I think that would be the way to go.


I'll have to make a CAD drawing or an mspaint depending on the level of intoxication when I get home .


Thank you all again for your input!

[AdamG]

I voted no. I really really wanted to build a supercharged camaro. However the reality of the situation is that it is never going to happen because of the overall cost of building one. That being said I hope you follow through with this project I would love to see it happen still.

[nateleduc]

I voted no. I really really wanted to build a supercharged camaro. However the reality of the situation is that it is never going to happen because of the overall cost of building one. That being said I hope you follow through with this project I would love to see it happen still.


I hope you mean positive displacement supercharged camaro. The point of it being cast is to keep the cost low. I've been running numbers and assuming the mold doesn't eat up to much time, it should work out

[nateleduc]

Well I mspaint'd it, because I'm too lazy (and pants-less) to use CAD on my PC. What I'm thinking is some stainless steel pipe mounted inside the case, then T-off to two fittings, where you can screw in your own nozzles. The pipe will lead to the outer intake where you connect it to an existing system.

This is of course all theoretical.

http://i.imgur.com/LEsrz6H.jpg

ghettoooo drawing...

[popo8]

I hope you mean positive displacement supercharged camaro. The point of it being cast is to keep the cost low. I've been running numbers and assuming the mold doesn't eat up to much time, it should work out

I think he meant the overall cost of building a motor to take the boost.

LTXtech.com is my drug.

[nateleduc]

I think he meant the overall cost of building a motor to take the boost.

LTXtech.com is my drug.


http://ltxtech.com/forums/showthread.php?10590-The-REAL-cost-of-Forced-Induction-NOT-for-the-faint-of-heart

I think his vote is disqualified. FI isn't cheap. Anyway you look at it FI isn't cheap. I bet the 358 you have there ding'd you a pretty penny. I'm just trying to level the playing field a bit by possible providing a way to mount a roots/twin screw without welding and hacking up a stock intake

[firebird_1995]

I know its early, but what would you project the total cost would be for this setup. (And I say setup and not "kit" because I realize you only intend to furnish the intake). What would the end users total investment be to make it operate 100%? And fwiw, I wouldn't take the "no" vote as a no. I think anyone would agree that the interest in your setup is only going to apply to people that are in the planning or building phase of an FI build. Obviously a guy just putting a cam in is not going to be interested. Don't sweat it.

[nateleduc]

I know its early, but what would you project the total cost would be for this setup. (And I say setup and not "kit" because I realize you only intend to furnish the intake). What would the end users total investment be to make it operate 100%? And fwiw, I wouldn't take the "no" vote as a no. I think anyone would agree that the interest in your setup is only going to apply to people that are in the planning or building phase of an FI build. Obviously a guy just putting a cam in is not going to be interested. Don't sweat it.


Not sweating it. I should have worded it as such: If you were looking to FI, would a low cost roots manifold interest you?

So far my spread sheet looks like this for the the prototype:


Foundry construction - $75
Propane - $19
Wood - $20
Casting supplies - $80 w/ shipping
Aluminum - Free
Aluminum plate -$60 w/ shipping
Custom Gasket - $???
Stainless pipe for Alky - $20

I anticipate a lot of man hours into making the prototype. I have a mill available that I may take a swing at machining them myself. If I find I can't machine them precise enough I'll just pass it on to an actual machine shop.

[firebird_1995]

Yea prototypes will take a lot of time. Chances are its going to take a few to fine tune the design. But what I mean by my question is how much will a person that buys an intake expect to pay by the time they buy everything to make the system work? Example being, I could sell someone a set of brackets for a side mount for $350. The customer then has to buy the material to do a 10 rib conversion for $500, the supercharger itself for $500, and tubing and intercooler components for another $500. Figure another $150 for misc items, filter, belt, hardware and his total investment is up to $2000.

[nateleduc]

Yea prototypes will take a lot of time. Chances are its going to take a few to fine tune the design. But what I mean by my question is how much will a person that buys an intake expect to pay by the time they buy everything to make the system work? Example being, I could sell someone a set of brackets for a side mount for $350. The customer then has to buy the material to do a 10 rib conversion for $500, the supercharger itself for $500, and tubing and intercooler components for another $500. Figure another $150 for misc items, filter, belt, hardware and his total investment is up to $2000.


I see what you mean now.

What I'm thinking for someone to fully bolt this on they would really need this

Manifold $700
Whipple 140ax/170 $2k
8 rib conversion $500 (optional)
Alky kit $600
custom elbow $150ish


The alky kit and 8 rib would only be needed if the SC was pushing more than 6lb of boost IMO. Technically, they could bolt on the manifold, SC, and elbow and be off. But I believe that if it is worth doing, then its worth overdoing. Personally I wouldn't want to spend the money on FI build just to push 6#s of boost.


Where the heck are you getting your SC from? I can't find SVT m112's on craigslist for that price

[firebird_1995]

I run an m122.

[nateleduc]

SVT or Jaguar?

Also, another thing to add is that this is designed to fit under the stock cowl and hood of an Fbody. From the pictures of your builds, they look to be a little on the tall side.

I really like the twin remote mount SC you did.

[firebird_1995]

Its the oem unit used on the gt500. I didn't do the twin mount. That was pocket on ls1tech. Gene Zebley did a custom intake for a whipple (i believe) on an impala. I actually spoke with him last night about another build I have been working on. It was very well built but it couldn't be tuned and managed to twist up a few rods in the process. It was a low profile mount. I'll try to post some pics of it.

[nateleduc]

Its the oem unit used on the gt500. I didn't do the twin mount. That was pocket on ls1tech. Gene Zebley did a custom intake for a whipple (i believe) on an impala. I actually spoke with him last night about another build I have been working on. It was very well built but it couldn't be tuned and managed to twist up a few rods in the process. It was a low profile mount. I'll try to post some pics of it.

Interesting. Correct me if I'm wrong, but the Cobra m112 points to the passenger side and the GT500 points to the drivers side.

I really haven't started looking for a tuner here in Houston. Everyone here is much more interested the the LSX than LT1. Swapping over to the 24x should solve it somewhat, since its essentially just a Chevy Express van.

Let me know if you stumble upon those pictures. I've very interested!

[firebird_1995]

M122 inlet is on drivers side

[AdamG]

You can discard my no thats fine. The reality is though that most people who say they will buy something wont follow through when it comes down to it because they dont put any forethought into a project. If you get 10 people who say they will buy it expect two people to actually poney up the money.

Look around on the forum and look at all the builds where people say they are going to do something and don't. Plus I dabble in a lot of hobbies and I can tell you I have seen tons of stuff like you want to do . Most times they don't get passed the drawing board. When they do like I said most times the people who said they would buy bail . Ill be impressed if you can do it for the cost you think you can. Because a member of another forum had a foundry cast intake grates for a jetski and the grates cost half of what your estimating your intake to cost. They are a fraction of the size and complexity.

Sent from my SCH-I110 using Tapatalk 2

[nateleduc]

M122 inlet is on drivers side

Wow, that's a beauty. Sits a whole lot higher than what will fit under the fbody cowl.




You can discard my no thats fine. The reality is though that most people who say they will buy something wont follow through when it comes down to it because they dont put any forethought into a project. If you get 10 people who say they will buy it expect two people to actually poney up the money.

Look around on the forum and look at all the builds where people say they are going to do something and don't. Plus I dabble in a lot of hobbies and I can tell you I have seen tons of stuff like you want to do . Most times they don't get passed the drawing board. When they do like I said most times the people who said they would buy bail . Ill be impressed if you can do it for the cost you think you can. Because a member of another forum had a foundry cast intake grates for a jetski and the grates cost half of what your estimating your intake to cost. They are a fraction of the size and complexity.

Sent from my SCH-I110 using Tapatalk 2

Under promise and over deliver. I really hope the cost isn't that high, but I'd rather say $700 and bump it down than say $200 and have to move it up. I realize that while 10 people say they are interested, only a few may buy. Its more about the interest in a roots manifold being on the market. Having the option instead of being stuck with a centrifugal super charger. But when you vote no on an idea based on the fact that FI isn't cheap, your not providing anything useful. You wouldn't be interested in any FI application, but again that is my fault for not wording it correctly.

I also completely agree that most projects never go completely through, but that's not how I work. Personally when I have an idea, I first approach it every possible issue that I will need to over come. I put a great deal of thinking into the idea before I started the previous thread.

I have quite a few things I've built that people have said wouldn't work:

http://www.overclockers.com/forums/showthread.php?t=733286&

The cast is near completion, with the exception of a modification to the outer pannel. I stopped updating the thread due to a lack of response by the community

[AdamG]

Not to be rude but big difference between building a computer and casting parts. Your seem to be an entry level back yard enthusiast when it comes to this. You said in another thread that all you have ever cast was some trinkets so once you get the initial design will you incorporate an actual foundry or just do it all your self. From what you said you will get all the aluminum free my guess is that this means scrap aluminum will be used to cast intake manifolds you plan to sell. How will this effect the casting as if it is scrap metal how can you be assured of the grade or quality of the aluminum. As posted in another thread several concerns have arose to the how you actually plan on casting a piece like this. how are you going to machine the mating surfaces?

I think these are legit concerns. If you are going to sell parts to people you have to sell to quality parts you cant just wing it and sell a bunch of manifolds to people and make it their problem. I followed the project of have the intake grates cast. I can tell you now that the foundry they used wouldn't do it unless it was a large order. They needed to sell at least 150-200 at a rip.

[shownomercy]

Another thing to think of, or not forget, is that casting is cheap process for a reason, it gets you sorta ballpark to final product. You will still need extensive milling on the intake flanges, where the intake meets the block areas, and where the blower mates to the intake. Then you will need to make sure you can control your mill work for the hole patterns and threaded inserts... castings are tough to control shift etc, and if this is a backyard endevour, be prepared for a lot of trashed molds until you can get things to be semi consistent.

I sound pessimistic but doing casting stuff in terms of CAD and semi big runs, is horribly time consuming. Casting design work is one of the trickiest cause of the non exact process of casting itself.

[nateleduc]

Not to be rude but big difference between building a computer and casting parts. Your seem to be an entry level back yard enthusiast when it comes to this. You said in another thread that all you have ever cast was some trinkets so once you get the initial design will you incorporate an actual foundry or just do it all your self. From what you said you will get all the aluminum free my guess is that this means scrap aluminum will be used to cast intake manifolds you plan to sell. How will this effect the casting as if it is scrap metal how can you be assured of the grade or quality of the aluminum. As posted in another thread several concerns have arose to the how you actually plan on casting a piece like this. how are you going to machine the mating surfaces?

I think these are legit concerns. If you are going to sell parts to people you have to sell to quality parts you cant just wing it and sell a bunch of manifolds to people and make it their problem. I followed the project of have the intake grates cast. I can tell you now that the foundry they used wouldn't do it unless it was a large order. They needed to sell at least 150-200 at a rip.

I understand the difference between casting aluminum and building a sheet metal computer. Like I said before, The aluminum would be from either a bad LT1 head or a cracked LSX block, depending on how many I decide to make. I have full faith that the aluminum (once chemically cleaned) will be pure enough to to use.

For machining the surface (SC plate, heads, block) I plan to try myself with a milling machine at my buddy's shop. If I feel that I don't have the skill to mill them correctly, I will pass it off to a local machine shop. I plan to at least try and mill the prototype myself, if it comes out straight and true, then perhaps I will continue milling them myself, if not - machine shop.

I also don't expect orders to pour in. What will more than likely happen is I make one for my T/A, my buddy's truck, and maybe 2-3 extras for the future. If I sell out of and need to make more, then I'll make a few more. I understand what you mean by quality, I wouldn't ever want to sell something that causes harm to another LTX member. I would be putting my name on the line if I sold half-ass castings that didn't fit/caused damage. My username is my REAL name. I can tell you, there are not to many Nate LeDuc's in Kingwood,Tx.



Another thing to think of, or not forget, is that casting is cheap process for a reason, it gets you sorta ballpark to final product. You will still need extensive milling on the intake flanges, where the intake meets the block areas, and where the blower mates to the intake. Then you will need to make sure you can control your mill work for the hole patterns and threaded inserts... castings are tough to control shift etc, and if this is a backyard endevour, be prepared for a lot of trashed molds until you can get things to be semi consistent.

I sound pessimistic but doing casting stuff in terms of CAD and semi big runs, is horribly time consuming. Casting design work is one of the trickiest cause of the non exact process of casting itself.

I get what you mean, where the manifold meets the SC mounting plate will need to be milled true, the block/heads will need to sit flush, the ports will need to match up reasonably well. I plan on over sizing the mold about 1/8" to allow me to machine if to the correct size. I've put a great deal of thought into the casting design. I'll post pictures once I start the design, but I do agree, the runners are going to be extremely difficult.

[AdamG]

Well good luck to yah. Post up pics of it as you go along. If nothing else it will be interesting. I honestly hope you succeed.

[nateleduc]

Well good luck to yah. Post up pics of it as you go along. If nothing else it will be interesting. I honestly hope you succeed.


Much appreciated. I'll post updates as I go along.

I'm still interested in what everyone else has to say!

[MoeHorsePower]

How will you check core density? what if there is a thin spot or an area that did not release all of the vapors which might of created an aerated section of the manifold, then it lets go under boost. Also when all said and done, what are the actual benefits of one completing a roots style vs a centrifugal vs price..

[nateleduc]

How will you check core density? what if there is a thin spot or an area that did not release all of the vapors which might of created an aerated section of the manifold, then it lets go under boost. Also when all said and done, what are the actual benefits of one completing a roots style vs a centrifugal vs price..

Pressure test, block off all ports and pressurize it would be my idea. If you look at the runners of Cornel's build, they are quite thin. I plan on casting mine a lot thicker.

Its all about the market. I think a roots/twin screw looks great. Its the same reason why people choose turbo over supercharger. Its all based on the amount of work you want to do/ power you want to make

[MoeHorsePower]

OK, At least you have in plans to pressure test, I agree on looks also, to a point, I still love the sight of a 871 blower sticking out of the hood, though not as efficient as today's Forced Inducted setups..

[ginoz28]

Wouldn't it be easier to just modify the SC for a sbc? Don't you only have to change the bolt pattern and block off the waterneck and distributor?

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[shownomercy]

Wouldn't it be easier to just modify the SC for a sbc? Don't you only have to change the bolt pattern and block off the waterneck and distributor?

Sent from my PC36100 using Tapatalk 2

I think height is a big issue, and that is what restricts doing what you just described.

[nateleduc]

I think height is a big issue, and that is what restricts doing what you just described.

There is a reason no one has really done it on an fbody LTX. I wish I could find a cracked whipple housing for testing purposes. I've been cranking hard getting my projects out of the way to get ready for this prototype.

[shownomercy]

There is a reason no one has really done it on an fbody LTX. I wish I could find a cracked whipple housing for testing purposes. I've been cranking hard getting my projects out of the way to get ready for this prototype.

Honestly, its mainly because for the work and money invested for the roots setup won't net you as much as a simpler turbo setup. I have maybe 3-4k in my setup and I can range from 3-5psi up to 15-20psi with a button change in the cabin (simplified yes)

[Mystery Bird]

:popcorn:

[ginoz28]

Fitting those injectors is gonna be a problem with how wide the SC is. The fords 5.4 can do it because how wide the intakes are. You will have raise it up to high and won't fit under the hood.

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[nateleduc]

Fitting those injectors is gonna be a problem with how wide the SC is. The fords 5.4 can do it because how wide the intakes are. You will have raise it up to high and won't fit under the hood.

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Look at Cornel's website. The whipple 175 fit with what looks like stock modified rails. I agree it will be tough, but in the end should be worth it. If no one buys it, atleast I'll have something unique.

[ginoz28]

Look at Cornel's website. The whipple 175 fit with what looks like stock modified rails. I agree it will be tough, but in the end should be worth it. If no one buys it, atleast I'll have something unique.

Was the engine in a camaro?

What's the website name?

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[nateleduc]

Was the engine in a camaro?

What's the website name?

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It was in a 94 formula

http://www.corneltechweb.com/superchargerphaseii.htm

[ginoz28]

That's NICE!

Looks like he had to sink it down low into the motor.http://img.tapatalk.com/d/14/01/09/bugypydu.jpghttp://img.tapatalk.com/d/14/01/09/setydu8u.jpg

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[nateleduc]

That's NICE!

Looks like he had to sink it down low into the motor.

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He did an earlier version using plate aluminum. Wasn't too good looking, but it did work.

[nateleduc]

So I've been blueprinting a bit on this before I decide to start this. One of the obstacles I have left is the bypass valve. The 140r/175ax do not have one built in, but they do have the valve and actuator sold separately on their website, neither of which will would be easy to incorporate into the build. This got me thinking, why not an old school HVAC bypass valve. Essentially, it would provide the same thing. I did a bunch of searching and came up with one I think would be great for this build :

http://cdn3.autopartsnetwork.com/images/catalog/brand/four-seasons/640/FS_74601_Front.jpg

The threaded end can be screwed into the manifold, into a passage in the rear of the manifold. Connect that to the stock HVAC line (or any vac line) and I'd have a functioning bypass valve.

Any thoughts on this

[firebird_1995]

Not going to flow enough volume to unload the supercharger. The stock bypass valve on the m122 is 1.75" diameter.

[nateleduc]

Not going to flow enough volume to unload the supercharger. The stock bypass valve on the m122 is 1.75" diameter.


damnnn. I was afraid of that.would 1.75 suffice for a 175ax?

Would this actuator have enough power to open the valve?

http://www.ebay.com/itm/93-Chevy-Camaro-Recirculate-Air-Vacuum-Actuator-1993-Vacum-Vacumm-42093D3-/230868336873?pt=Motors_Car_Truck_Parts_Accessories&hash=item35c0d340e9&vxp=mtr

[firebird_1995]

Looks like whipples bpv assemblies are 1.5"

[nateleduc]

Looks like whipples bpv assemblies are 1.5"


Where did you find this at?

I'm assuming this:
http://www.whipplesuperchargers.com/product.asp?ProdID=1210

[firebird_1995]

Yes

[nateleduc]

Question: What is the smaller hole in front of the bypass valve?

[firebird_1995]

I believe that's the bore for the butterfly valve shaft.

[nateleduc]

I believe that's the bore for the butterfly valve shaft.


If you look on the mounting plate, there is a matching hole as well. I don't think that it is for the butterfly valve shaft.

[firebird_1995]

You talking about the one that looks like a grommet? Can you circle it in mspaint or something?

[nateleduc]

You talking about the one that looks like a grommet? Can you circle it in mspaint or something?


Here ya go!

http://i.imgur.com/nRZv51y.jpg

I can't think of anything it could be. There is a matching hole on the elbow mount as well.

Thank you for all your help!

[firebird_1995]

Oh I was looking at the bypass valves on whipples page. That's a bolt hole for the adapter plate. On the supercharger next to the plate you can see the bypass valve (gold) at the top of the pic. Right below it is a tapped hole.

[nateleduc]

Oh I was looking at the bypass valves on whipples page. That's a bolt hole for the adapter plate. On the supercharger next to the plate you can see the bypass valve (gold) at the top of the pic. Right below it is a tapped hole.


Okay, so that's just to add support/strength to the elbow?

[firebird_1995]

I'd say its more to ensure sealing around that area

[nateleduc]

I'd say its more to ensure sealing around that area

Thats what I meant to say. That bypass valve is going to be tricky, I'll have to shop around for possibly some parts I can scavenge off a carburetor.

As for the bypass valve, the actuator vacuum line isn't anything special, correct? Just a normal engine vacuum line.

[firebird_1995]

Yes just a normal vacuum line

[ZOHAN]

http://img.tapatalk.com/d/14/01/22/yhe6ynuq.jpghttp://img.tapatalk.com/d/14/01/22/y9esyty3.jpg

http://www.corneltechweb.com/superchargerweb.htm

Making you silky smooth...

[nateleduc]

I've seen his website many-a-times. I have a copy of it cached on my server in case his website goes down.

I have started working on the mold, but really haven't gotten to far as work/school have been insane the past few weeks. I'm still working on getting my spoiler prepped for paint so I can move that project out of the way.

Appartment = no garage. Garage at dad's house = full of my unfinished projects. lol

[firebird_1995]

Made any progress lately nateleduc ?

[nateleduc]

Just top secret CAD drawings :)

I've begun to collect some of the supplies, but I can't really advance till I finish my 8.8. No one in Houston wants to weld cast steel :(

As soon as 8.8 is out of the garage, I'll resume working on the mold.


Also, can't seem to get my hands on a LT1 block for measurements. So very sad....

[nateleduc]

Bought an lt1 today. $150 Caprice lt1 w/ 166k miles. Needs a good cleaning, but it will work for what I need
28304

[SSlowBoat]

On a serious note, if ur serious about this we are interested. In the never ending thought process of the nova build, we are thinking roots blower for the lt1.

[jseal-57]

I'm very interested as well. the roots is the only way i want to go for FI.

[zooguy]

same here ... i like boost but i dont want to do a turbo ... i want a roots style blower ... the whine is so sexy AND no lag ... instant boost off idle

[nateleduc]

School is over. More time for breaking my car.

[popo8]

same here ... i like boost but i dont want to do a turbo ... i want a roots style blower ... the whine is so sexy AND no lag ... instant boost off idle

Lag???? Lol.. What era of equipt are u living in anymore¿

LTXtech.com is my DRUG!

[nateleduc]

Hey babe, looks like we are eating Ramen for the rest of the month ;)
From the base of the intake to the cowl, there are 7 1/2 inches (rough measurment). The blower is 6 1/2" tall. Its going to be tight, but it'll fit.

As you can see, the intake and snout are on the same side, which makes this much easier, vs routing it from the rear of the intake.

[zooguy]

who else is getting excited about this?

[hokeplaya05]

i would be interested! (voting seems to be closed) not sure how i missed this thread, subscribed!

[nateleduc]

I'm pretty happy I was able to find find a m112 with the snout and intake on the same side. My previous idea wasn't nearly as clean as this would be.


Not sure what to do with the IAC and that vacuum line yet

[Oaksy]

It looks like it is coming together rather nicely. I know for a fact that I would buy one! Hopefully you can keep trucking with the idea.

[popo8]

nateleduc , any progress on this?

[nateleduc]

@nateleduc (http://ltxtech.com/forums/member.php?u=4835) , any progress on this?

Little bit. I have 4+ projects on the TransAm, and have everything stored in my dad's garage. He was pretty ticked when I started working on this before finishing up my other projects.

I'm 90% completed with my 8.8, once that is done, I'll be able to continue working on the intake.

[MoeHorsePower]

Lag???? Lol.. What era of equipt are u living in anymore¿

LTXtech.com is my DRUG!

Lol yup, lag broke my drive shaft!

[SpeedJunkee]

I would not be interested. I know some guys like roots style blowers, but honestly I don't. They heat soak, so they are counter productive as you use them, plus I don't like how they make linear power. IMO, it's better to make more power as the power band increases (as in you don't want gobs of power down low when you have the least amount of traction vs higher in the power band when you have more traction).

but this is just my opinion as that's what the thread is looking for. I think it's cool you are thinking of new things for the old LT1.

[zooguy]

ummm ... more power down low gets you moving

[SpeedJunkee]

ummm ... more power down low gets you moving

I see. So, if that's the case, then you would prefer peak power (let's just say 650 RWHP), all at 1,800 RPM?

If your car can dead hook from a dead or barely rolling stop, then this is fine. However most people who are running FI setups have enough power that traction is an issue. Sure, if your car has zero traction issues then power off the get go is perfect. For the rest of us, you don't want more power until you have more traction which does not happen until a faster MPH and as a result a higher RPM band.

[zooguy]

http://tapatalk.imageshack.com/v2/15/03/23/e6694fba7e7602f4a09181d958fc8775.jpg

[SpeedJunkee]

That's great. Like I said, for those where traction is not an issue. Most people I am guessing would be more into street use and most probably don't run around on slicks. Even with slicks, and full race suspension, I still had traction issues. Traction issues that would have been much worse if I had even more power down low.

Look, I don't mean to say "you are all wrong" here. Just giving my opinion. Again, I am happy to see new things brought to the table for the LT1, even if it's not something I would be interested in.

[shownomercy]

I see. So, if that's the case, then you would prefer peak power (let's just say 650 RWHP), all at 1,800 RPM?

If your car can dead hook from a dead or barely rolling stop, then this is fine. However most people who are running FI setups have enough power that traction is an issue. Sure, if your car has zero traction issues then power off the get go is perfect. For the rest of us, you don't want more power until you have more traction which does not happen until a faster MPH and as a result a higher RPM band.

My car would be like my truck, WOT is 3k rpm :lol:

[zooguy]

i never said that yours saying we are all wrong ... its just that there are fixes for traction issues that is all

[SpeedJunkee]

i never said that yours saying we are all wrong ... its just that there are fixes for traction issues that is all

Well with full drag suspension and slicks, and still having some traction issues, without reducing HP there is not much else you can do. That's my point, and why IMO that roots style blowers like this would not be preferable form of FI. Centrifugal Superchargers or turbos would be the preferred route, or even nitrous you can hit once you have established good positive traction.

[popo8]

firebird_1995 designed his own system. Very impressive but I remember him saying it was a violent hit.

[firebird_1995]

Yes it was. From cruise vacuum pressure to 12 pounds of boost in half a second as recorded on data log

[SSlowBoat]

Yes it was. From cruise vacuum pressure to 12 pounds of boost in half a second as recorded on data log
Whipple done yet? Then we can test to see if 18psi hits quick

[firebird_1995]

It's ready to go. Still working on a bracket to hold the tensioner and idler just right so you can use those $15 Goodyear gatorbacks vs a custom belt.

[SSlowBoat]

It's ready to go. Still working on a bracket to hold the tensioner and idler just right so you can use those $15 Goodyear gatorbacks vs a custom belt.
You da man

[zooguy]

how is this going?

[nateleduc]

how is this going?

Slow! but its coming along. Lower manifold is complete, ready for casting. I have a few thoughts on on the mold.

I don't want to use greensand, as the positive is a bit complex. I was thinking of using molding clay, as there is a crafts store in the next town over that has a kiln.

Still working on building the foundry. Can't seem to find fireclay locally.

[SSlowBoat]

Why not CNC it?

Sent from my SAMSUNG-SM-G900A using Tapatalk

[shownomercy]

Why not CNC it?

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$$$$$$$ As always :lol:

[nateleduc]

$$$$$$$ As always :lol:

CNC wouldn't be too expensive, as I have a client who does CNC gasket making for oil/gas. But if i wanted to make a revision, i wouldn't want to wear out my welcome.

Update, I'm about halfway done with my foundry. Greensand has been ordered. My positive impression is complete (needs to be painted). Mold for sand core is done.

I'm hoping to have atleast my first attempt poured by the end of the year.

[superspirit]

Cool

[nateleduc]

http://ltxtech.com/forums/attachment.php?attachmentid=34845&stc=1

:)

[popo8]

http://ltxtech.com/forums/attachment.php?attachmentid=34845&stc=1

:)
Love it. Not sure what it is. But it says the RIGHT thing.

LTXtech.com IS my drug...
OWNER/ADMIN

[nateleduc]

Love it. Not sure what it is. But it says the RIGHT thing.

LTXtech.com IS my drug...
OWNER/ADMIN

Its a cover for my furnace.

i can confirm my furnace will hit 1200* fahrenheit . I have a casting core in the oven right now! as long is it comes out okay, I should be set to pour one this week.