No. the car won't make some pretty good peak power. The turbo will max out very early, but not as early as his first turbo. Guys use these turbos on stock LS1's and have instant spool and can make peak and mid-range power. Now add over 50 more cubes with a very small exhaust housing and you will get back pressure very quickly, killing any chance of making any peak high rpm hp. This setup will never see 20+psi from back pressure.

It also will not be lazy on the street because with the big cubes and turbo being so small it will transition into power easily since the turbo will spool so fast.

 

Are you talking about the billet 75/75 being too small or the 72mm?

 

Im talking about the 75 but that is also dependent on the exhaust housing chosen. Being that you have a billet wheel will help it on the compressor side. Do you have the,full specs on the turbo?

 

How much power do you think you want/need would be the question.

 

The exhaust is a 1.15ar with the billet wheels. As far as power, 650 is the goal. I know I am going to overshoot that like it was some Apollo mission. I want this car to drive, but be able to be driven hard if I want. The VVT paired with the, VVT cam and the right turbo pushing 8 psi through a pretty effecient intercooler should make for a large flat power curve. Which is what I want! I am starting at 9:1 CR and running 60 lb @ 43 psi Injectors and a PWM controlled CTSV pump gives me a lot of control. In the end if I go to sell this car I can market it any way I want, bunt until then Im going to enjoy it. This is one of the renderings I had done of the car, it changed a little since then but you get the idea. Ohh no one has the full specs on the turbo. Turbonetics wont release the maps yet. I called and thats exactly what they told me.

 

Maybe our definitions of lazy are different. :thumbs:

I will admit that the car will be significantly better with a 9 : 1 static that the OP stated as opposed to the 8 : 1 static that he stated earlier. But my whole point was that with the turbo size described and the amount of peak boost that was given in the beginning of this thread and the static compression ratio of 8 : 1 that was mentioned there's absolutely no doubt in my mind that the car would have been lazy. It's simple physics. You need Fuel, and or timing and or compression and or displacement and or boost. He was lacking two of them based on what I read. With that Said, I'm sure the car would have still been a fast car there would have been a lot more room to make it faster is all. With ray first static compression ratio he would have made 500-525 WHP at best. But now that I see he's gonna be 9 :1 no doubt he will make his 650 wheel and then some.

I'm in for the results, Dyno graphs and street and track testing.

 

I guess I should have been more specific, I was shooting for 650 FWHP not RWHP. Thats why I said that I am more than certain I am going to over shoot and have to back off the boost a little. I am all about posting the results. You are all going to have to wait a few months. I wont be back from Afghanistan until Nov/Dec then I have to finish building all this stuff.