Forced Induction Supercharger/Turbocharger

How would you build my LT1?

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Old Mar 6, 2009 | 01:28 PM
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TA Dreaming's Avatar
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How would you build my LT1?

Ok guys here is the simple jist of it. I will be using an LT1/T56 combo to power my 79TA. I was going to go with a stroked LQ4/9 so as to have a Gen 6.6. Well, now that the plans have changed I still want the same performance as I would have gotten with the 402. If this was your LT1, how would you build it so that it performed like a big cube Gen3?

Some basic guidelines: I am on a budget and would like to keep the stock heads and intake versus switching to a carb style intake. I would prefer to go single turbo to be different but am not against going with a blower. However, in keeping with the big cube power band I am after, I do not want to start building boost at 3k like a Procharger does. I would rather be at full boost by 3k. Since this is a street car that is built in the pro-touring style versus drag race, I was thinking I would keep boost around 8-10 psi max and my compression at 9.75 or there abouts. Honestly, I would just like a very broad power band with loads of torque with goals of 450+ hp and over 400ftlbs at the wheels everywhere I can in the range.

Now, if you have some better ideas or I am completely off on something, please speak up. It's going to be a while before I start building. I'm merely starting my research now and just thought I would ask people's opinion.

Thanks guys
Trey
Old Mar 6, 2009 | 02:58 PM
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personally, I would contact realquick on here about getting a turbo kit made.
Then, I would probably get a master power t70 witha .96 A/R
get some forged pistons, h-beams, and be set.
Old Mar 6, 2009 | 04:01 PM
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can the stock crank handle the loads? Can it handle say 6500 rpm shift points? I'd be balancing the assembly of course.

I forgot to add that I would be fabbing all the parts myself. I plan on going with headers as well. I love fabbing and am always looking to learn and expand my abilities.

I was also wondering if I could get away with just meth injection instead of an intercooler for now? I'll look into it some more. Just thinking out loud right now.
Old Mar 6, 2009 | 04:05 PM
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something else I have noticed as I do my searching, where can I find dyno graphs of different builds? I think that would be an excellent source of info for people. Is it already here and I am just missing it?
Old Mar 7, 2009 | 07:59 AM
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Use an intercooler, unless you want to go E85.

Stock crank will handle 900 crank HP, it's actually A LOT stronger than people give it credit, just make sure to get a good balance job and do splayed mains.

I ran the times in my sig on STOCK heads, STOCK cam, STOCK intake, at 11.5psi with a T76.

I'd go with a TC76 from Jose at Forced Inductions, it will spool A LOT faster than the other T76's.
Old Mar 7, 2009 | 03:58 PM
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You wouldn't happen to have a dyno graph of your car would you? It's very important to me that the car make good power and torque below 3k rpms and hopefully all the way to 6500. Thanks for the reply
Old Mar 7, 2009 | 08:05 PM
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I don't have a dyno graph, with e85 though it'll help it spool faster.
Old Mar 8, 2009 | 09:15 AM
  #8  
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I'm now at a procharger D1/ 383ci. 97ss Camaro M6.
Did a NEW shortblock with 4-bolt and forged assembly 9.5:1 static comp.
Alot of power with a 7.6" --> 3.4" pulley ratio (approx...15psi). Meth-H2O and large IC assisted. Still run te OBD2 PCM with LT1_edit flash.

I had to reconfigure the drive line for power. 4 cams later, it has massive torque/ high rpm potential, and spins the tires @ 60mph.

I have also done many mods (all work by myself) to support the FI mods (costly), but power is everywhere. Purchased the car in 1997, and modded every year (not the best way to do it). Configured as a street corner machine, not, a drag car (but I like drag cars too). It corners very well, and, I have quite a few run-ins with the German product (and have crushed them). Yes, I like my American Car.
Some mod pix... http://s306.photobucket.com/albums/nn244/mzgp5x/
Hope this helps, and, best of luck. B.
Old Mar 8, 2009 | 11:01 AM
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The log manifold design that i use makes full boost quick. One of ,y customers with a 355ci LT1/t56 setup made 14psi by 3200rpm on the street. Definitely easy to package.
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