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

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.

At the very least I would love to see it!

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.

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.

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.

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.

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.

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

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!

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.