I've decided to run a 9.0:1 and just run 91 octane and meth. I don't think the stock fuel lines will handle the amount of fuel I'll have to flow if I switch to E85 and I don't want to rely on E85. If I want to switch to it later and up the boost, then I'll do that but, I don't want to be limited to 100+ octane gas.

 

Nice choice.

 

I agree. Will need quite a bit more flow to do e85. I've got to bite the fuel line bullet eventually too.

 

How much power you trying to make?

 

I don't really have a goal. I've been saying 700 to the wheels, but really I'd be happy with anything over 500. I know traction is going to be a big issue. I just want to see what it'll do with 10 psi.

 

500 shouldn't be a problem at all, you'll have WAY more motor than I do with this stock 5.3 with a cam and the same turbo. I made 557rwhp on 11lbs, I don't think 700rwhp would be a problem if you push the tc78.

Also to give you an idea, my old firebird at 3500lbs with a t76, 9.5:1 355 with STOCK HEADS/CAM, on 11lbs went 10.8 at 127.8, never dyno'd that setup though. You shouldn't have a problem going low 10's on pump gas if the car is setup right.

 

First off, if you want anything over 500 HP, you need to tear your engine down to zero and reload with all new everything. Otherwise, you're gonna blow it apart anyway.

That said, your cost vs value vs power is exponentially multiplied by the labor rate of specialty shops you will contract with. If you've got $10K burning a hole in your pocket then I wish you a lot of fun, because you will spend every dime of it getting up to 500 HP.

You'll need some top notch forged pistons to handle any pressure. Then the cam needs should be exactly matched to your driving specifications, do you expect to pass smog checks? How many miles do you want to drive this car? If less than 1000 miles, then build the crap out of it. If you want to put 80,000 miles on it, overbuild the strength, underboost the engine. Can the rest of your drivetrain handle the new power? Have you ever driven a car with over 400 horsepower?

My personal suggestion to anyone considering boosting their car is to make sure you have a good paying job.

 

You do know that I have an all forged motor that has only seen a couple hours of dyno time right? And we don't have any emissions testing in Nebraska. As far as the rest of my drivetrain, I've got a strange 12 bolt and a CPT Pro race 4L60E with a Vigilante Triple Disc 2800 stall and a chromemoly driveshaft. Trust me, everything should handle the amount of power I'm getting ready to throw at it. I've built everything up to handle this motor, so when I do finally install it I can enjoy it instead of fixing the "weakest link".

I've got a 500+hp truck that's got 800+ ft/lbs. I know its not a car, but it'll smoke 400hp cars that weigh less than half its weight all day long. You got to love a boosted 4x4 launch.