89Notch 5.3/T76 turbo/th400 etc Build Thread.
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Thanks guys, The little 5.3 that could will be up and running again soon in a friends s10 blazer.
The harness is a factory truck harness we modified, car uses a factory truck ECM that I tune via EFI live 3 bar SD operating system.
The harness is a factory truck harness we modified, car uses a factory truck ECM that I tune via EFI live 3 bar SD operating system.
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awesome....how do you like speed density? is it easy to tune? You say you drive it on the street quite a bit so drivability must be good??
Do you think the t76 is too big?
What rpm do you get full boost?
sorry so many questions.... ur making me want to convert to turbo on my C-10!!
I have many years playing with turbo mitsubishis, but i've always wanted to turbo an LSx!
thanks
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to the OP: Is there any part of the combination you'd change for running ad 4500' elevation? Like 3.55:1 gears instead of the 3.27:1s you had? And if you'd had a 4L85E or a GearVendors, how do you feel the car would've taken it, aside from the extra weight? Thanks for an excellent thread.
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I would do a th400 with a trans brake a gear vendor and a 3.55 gear.
finished the car at 4am friday morning, got up at 6:30am and drove the car 5.5 hours on the highway to get to a HUGE local car weekend. Raced the 100 foot drags where I did not have my boost controller set up properly and therfore got my *** whooped.
But saturday night we had some very fun street action and I proceeded to take down :
69 camaro, Full tub on 33x17 slicks, 502 on the bottle.
Hyabusa not sure on mods I think just a pipe
C6 Zo6 408,procharger -810 rwhp
as for spool time, still got some issues to work out with spooling it on the trans brake but it spools awesome on a roll.
finished the car at 4am friday morning, got up at 6:30am and drove the car 5.5 hours on the highway to get to a HUGE local car weekend. Raced the 100 foot drags where I did not have my boost controller set up properly and therfore got my *** whooped.
But saturday night we had some very fun street action and I proceeded to take down :
69 camaro, Full tub on 33x17 slicks, 502 on the bottle.
Hyabusa not sure on mods I think just a pipe
C6 Zo6 408,procharger -810 rwhp
as for spool time, still got some issues to work out with spooling it on the trans brake but it spools awesome on a roll.
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good luck with the build man sounds like its going to be one bad ride when its done just dont lose interest in it i had a buddy doing the same thing to his 88 gt and he lost interested and sold the car and now i have his ls6 sitting on a skid in my garage while he tries to sell it, i was irritated when he said he was going to sell it because i thought the end result would have been a sweet ride but just stick to it and send me a video when you get it done
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Well I decided I might as well throw the car on the rollers and make sure the tune was half decent for some friday night action.
I was kindly rewarded when the first pull it broke up rich numerous times and still did 600 ish rwhp. 11 psi of boost/15 degrees of timing and breaking up in the 9's for AFR.
Second pull I got the tune a little closer it did 650ish still same boost/timing. Little cleaner AFR.
Third pull , still working on the tune..... 670rwhp/601 rwtq on 12psi/15-16 degrees of timing and a pretty rich afr of around 10.8 ish.
4th pull got the Afr cleaned up added 2 psi of boost and did 706 rwhp/625 rwtq on only 14 psi/15.5 degrees of timing and around 11.2-11.6 AFR.![Driving](https://ls1tech.com/forums/images/smilies/LS1Tech/gr_driving3.gif)
I decided that was enough power to try out for the first time out. Overall I am up 130 rwhp and 103 rwtq on 2.5 psi less boost. This thing still has A LOT left in it but like I said I wanna see how it does on this for now.![Engarde](https://ls1tech.com/forums/images/smilies3/engarde.gif)
I have also been driving the car alot to and from work etc.
I really did not think that this stock JUNK would make this much power especially on low boost. All numbers were made on GARBAGE 91 octane pump gas and meth. I will post the dyno chart as soon as I get a chance.
I was kindly rewarded when the first pull it broke up rich numerous times and still did 600 ish rwhp. 11 psi of boost/15 degrees of timing and breaking up in the 9's for AFR.
Second pull I got the tune a little closer it did 650ish still same boost/timing. Little cleaner AFR.
Third pull , still working on the tune..... 670rwhp/601 rwtq on 12psi/15-16 degrees of timing and a pretty rich afr of around 10.8 ish.
4th pull got the Afr cleaned up added 2 psi of boost and did 706 rwhp/625 rwtq on only 14 psi/15.5 degrees of timing and around 11.2-11.6 AFR.
![Driving](https://ls1tech.com/forums/images/smilies/LS1Tech/gr_driving3.gif)
I decided that was enough power to try out for the first time out. Overall I am up 130 rwhp and 103 rwtq on 2.5 psi less boost. This thing still has A LOT left in it but like I said I wanna see how it does on this for now.
![Engarde](https://ls1tech.com/forums/images/smilies3/engarde.gif)
I have also been driving the car alot to and from work etc.
I really did not think that this stock JUNK would make this much power especially on low boost. All numbers were made on GARBAGE 91 octane pump gas and meth. I will post the dyno chart as soon as I get a chance.
Last edited by tirefryin_s10; 07-16-2009 at 01:25 AM.