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Old 01-15-2011, 09:42 AM   #15

GretchenGotGrowl's Avatar
Drives: LFX/F150/Sonic/C7 Z06 ordered
Join Date: Sep 2010
Location: Little Rock, AR
Posts: 6,219
Originally Posted by elsololobo02 View Post

Thanks for the info. I think I will keep the boost at 5 PSI for the moment until more testing is done so I don't have to change out rods, pistons, valve springs or tranny from stock. I'd rather err on the side of safety when working with stock tolerances/capabilities.
Originally Posted by camaro guy View Post
i dont think anyone makes those parts. how do you plan on changing them and or the tranny?
I think we can get rods, but they may not be too big a problem. Definitely want to replace the bolts. Pistons are a totally different matter. These things are funky to deal with the DI, so it will take a custom set. I'm saving for that now. As for the tranny, I'm considering complete replacement but I'm not sure how that will work with these new type controllers. That's going to take a bit of research. There's a guy locally that says we could rebuild it ourselves, but I think he's assuming there are parts available.

Anyways, I starting at 5-6 psi, too. I'll do lots of logging as I work my way up to 8-9. I think she can handle it, but probably not much more. I'll working on some stuff to lower the compression a bit, but that's going to take a while (and money) to do it right. Some may be possible with custom pistons, but probably not enough without decreasing effeciency of the DI setup. Biggest think will the to tear it apart at some point and see what it really looks like in there.
EFR Twin Turbo LFX-GPI Tune-ZL1 fuel pump-10:1 CR forged pistons-3.45 gear-Meth Injection-BMR Trailing Arms, Bushings & Sway Bars-CircleD 4000 Stall-GPI Fuel Enrichment System
647 RWHP & 726 RWTQ @18.5 psi on 93 Octane (locked converter)
1/8 mile -- 7.158 @ 102.10 (20psi); old build
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