SD tuning progress

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Originally Posted by bigtoyz

I'll take your advice and take it down to the low 15's.

It wasnt detonating and it wasnt removing timing either. Like I said in an earlier post I havent gotten to the timing yet, and it should still be setup for boost timing.

From what I have been reading from different write ups on tuning for WOT they have been saying from 12.5-13.4. However if you guys are saying 12.5-12.8 I'll set it up for that.
But since I'm going to have it up on a hoist I'm going to pull a few plugs and see how they are looking anyways.

I have it locked into SD Mode, the o2's are shutoff and so is the MAF. It hadnt surged on me as of yet. I did notice the other morning when we loaded it that it did. But I havent
been able to correct the tuning for at those temps yet, which I am going to do. From 65+ degree's it starts at the turn of the key and idles smoothly in and out of gear. You can
crack the throttle and it rev's up and the A/R goes down.

I'm not taking any of what you guys are telling me as criticism, glad your pointing things out...just more info for me to take in.

Now has anyone used egt guage and sensors to set their cruise area part of the tune. If so is 1350 still the burn down temp? For 2 stroke and diesels it is.......I would assume it is
for gas also.

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do not tune part throttle off of burn temps far too many variables while driving at part thorttle to consider........tune off afr at part throttle..........and forget diesels completely different world..........ive tuned both they are NOT the same.........part throttle you want stoich ~14.7......go off that table i showed you.....as for running WOT out at 13.4 some motors like it some dont...has alot to do with the chamber burn efficency....."lean is mean" is the biggest load of crap that has ever hit the internet boards.....the more efficent a chamber the more fuel it will use to make power and the less timing.....for safety on 93 octane which varies vastly from tank to tank run at 12.5 to a lean limit of 13.0.....you are not running tested fuel from a drum so walking the line is a bad idea.......

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Originally Posted by bigtoyz

I am not ashamed to say I built this motor..........it was built well and taken alot of time to make sure it was put together right. How many can say that they built their own engine/transmission and also do their
own tune?
I went out and got a copy from the car's computer.......it has 24 advance timing so that is low for NA motor but not for a boost motor.
get headers to put on it cause they would be useless anyways in the end. The rest of the exhaust is SLP for the Comp TA which I think is SLP big mouth.

And the cam was suggested is the one I have.....and back then it was pretty ratical for boost. By today's standards its mid size cam. I'm not one that believes you need a huge cam to make power for a boost motor.


I has strong spark and no arcing from wires. And no misfires detected upto 6300 through autotap. Wish I had access to a oscilloscope to look at the spark curve just to verifiy the spark curve.

Sorry that this one got kind of lengthy.....and no offense taken Tyler......I'm one that likes to learn.....I got screwed over by couple of tuners in the past so its time I learn to do it myself. One was
a well know tuner from OK. Car wouldnt even hardly start and went through a tank of fuel in 90 miles, just to get it down to him to do dyno runs.

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I am not ashamed to say I built this motor..........it was built well and taken alot of time to make sure it was put together right. How many can say that they built their own engine/transmission and also do their
own tune?

ME :devil:


I went out and got a copy from the car's computer.......it has 24 advance timing so that is low for NA motor but not for a boost motor.
get headers to put on it cause they would be useless anyways in the end. The rest of the exhaust is SLP for the Comp TA which I think is SLP big mouth.

That is VERY low for an NA motor and you will be doing nothing but chasing your tail trying to tune your WOT afr with timing like that.....with that CR you should be much higher...

And the cam was suggested is the one I have.....and back then it was pretty ratical for boost. By today's standards its mid size cam. I'm not one that believes you need a huge cam to make power for a boost motor.

again an internet fad.......i just built and tuned a 383ls1 with a 76mm turbo.....with a 23x/24x cam.....made 640rwhp on pump fuel at 12lbs :D


I has strong spark and no arcing from wires. And no misfires detected upto 6300 through autotap. Wish I had access to a oscilloscope to look at the spark curve just to verifiy the spark curve.

waste of time unless you have misfires....and without a cam reference to plot as well its impossible to tell the timing curve based off of Oscope data......i had a misfire issue with my car and ive been here....

Sorry that this one got kind of lengthy.....and no offense taken Tyler......I'm one that likes to learn.....I got screwed over by couple of tuners in the past so its time I learn to do it myself. One was
a well know tuner from OK. Car wouldnt even hardly start and went through a tank of fuel in 90 miles, just to get it down to him to do dyno run

so most importantly DONT listen to everyone who claims they are a "super tuner" and have "years of experience" most of these people are morons trying to put food on the table......you will realize who knows their stuff sooner or later.....and the info youve gotten so far and have tuned off of is FAR off track.......

point taken.....

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Originally Posted by bigtoyz

Attachment 11485Attachment 11484Attachment 11483

Here are some pics out of my 04 S10 and 04 Powerstroke for hand controls. I couldnt get up into the car is on the car trailer for thuresday to get hauled down to my buddies place.

And here's a little clip of how it works.
http://www.youtube.com/watch?v=6-L-3...ature=youtu.be

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response below...

So 2 or 3 days ago...u said when u go outside ud get some pics of the set up in the car ..... but now the car is "away?" But then i read u saying u went outside to get tune info from the car .... the one you have been saying ur gonna get the rear fixed, so how do u do that if its away....but then u post up pics and vids inside a ford truck? And even at that it took a week for u to post ...Maybe its the cop in me questioning why 1+1+1= 72 , and if im off base ill be the first one to appologize and say Im wrong..... but im having a hard time tryin to figure u out....



Soooo confused.....


Larry (Popo8) Co-owner
LTXtech.com




Larry (Popo8) Co-owner
LTXtech.com

Ok I was suppose to have had time in my buddy's shop last weekend. So I got up on the trailer so I didnt do anymore damage to it. 25 miles to his shop. But wasnt able to fix the rearend.......so it didnt go down there then. My son came home from school....and is suppose to go down there tomorrow Thursday.........so Friday we are gonna work on getting the new gears in it. I had some other things I wanted to look at for the tune so I had the wife go get a copy from the car which has same thing on the laptop that I keep in the car at all times. Now with me being not able to get to the car since it is up on the trailer I figuered next best thing is the two trucks we have since the hand controls work the same way.......I couldnt do the video from the powerstroke and hold my phone at same time. So I went and took pics of my S10 and the video cause I could reach it and take video. And I also have a 88 tbird turbo coupe and 93 tbird 5.0....... Wanna run plate numbers so that you can verify that I'm not feeding you some line of bullshit? The Comp TA is all over the net on the Comp TA site and others Look for Patrick Dirckx Comp TA #161 out of Minnesota. And they are the only ones that are all silver with black stripe down the middle. SLP upgraded like the firehawks, and camaro ss.

And sometimes it takes me awhile to get to things......I forget to do it or I get busy working on other stuff and forget to do it......I fix computers here and there so when people bring them to me I work on them first. And my cousin and I have been working on building couple of engines the last couple of nights after he gets off of work ford 302 and 351w for a guy.

and I'm one where my mind thinks faster than my fingers can type at times and it may not come out the way it should. And if you look in my profile...I think there are pictures of John Force and I when he signed my car two different years. If not I have them someplace and can put them up also. And also a couple with him doing burnout with my car :P that was plan cool.

yea so back to the tune..........do what i said before you make yourself a paperweight lol

I'll work on the tune tomorrow when I get finished with the gears and richen it up.

I've run as high as 17.x:1 in my GTO. That is basically what Holden runs from the factory with lean cruise. It was too much for me, so I dropped to 16.7 and worked just fine with the GT2-3 cam I had in at the time. Got a best of 33mpg on the tank with it there. Changed the cam and it dropped to about 15.1 as that cam just couldn't run that lean. Changed the cam again and I'm back to 15.6 or so. 04 GTO's allow lean cruise and it makes it easy to run lean.

Just watch knock and see how it feels. All cars are different, some can run leaner, some can't.

Thanks for the info......just a little bit more info to take in. Granted its probably an LSx motor....so there are going to be some differances in how the two motors react.....if you know what I mean.