Forced Induction Superchargers | Turbochargers | Intercoolers

pt88=800+RWHP??

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Old 01-25-2011, 12:31 AM
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20psi, 19*, pump/race gas mix, with meth injection.
Old 01-25-2011, 01:54 AM
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I don't do dynos but I've been 8.9s at over 3850# race weight in so so air. I was pushing 22psi to get there.
Old 01-25-2011, 11:28 AM
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thanks for the repsonses guys. i went and picked up a PT88. just waiting for the motor to get machine work finished then it will be going together. id be happy with 9.5's lol but im thinking with the combo it might go alot faster.
Old 01-25-2011, 04:34 PM
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the 88 is a great little big turbo for 370 cubes

they are rated at 1250 horse with a perfect pressure ratio, most guys on here myself included got hung at about 900rw
Old 01-25-2011, 04:50 PM
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Originally Posted by MIGHTYMOUSE
the 88 is a great little big turbo for 370 cubes

they are rated at 1250 horse with a perfect pressure ratio, most guys on here myself included got hung at about 900rw
Are you saying backpressure limited you to 900rw?
Old 01-25-2011, 04:54 PM
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im also doing a 370ci LS2 with ported LS2 heads, custom cam, gonna do a 76gts and should be right at 800 or so on 18-20 psi ...
Old 01-25-2011, 05:33 PM
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Originally Posted by Zombie
FWIW a SX80 will easily make 800rwhp on a 370. I'm pretty close on just 15psi with one of the most basic motor setups ever. Stock heads, ls6 manifold.
really?
Old 01-25-2011, 07:54 PM
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Originally Posted by mike13
Are you saying backpressure limited you to 900rw?
i have not gone to those lengths to determine.. i just switched turbo's.
Old 01-25-2011, 09:33 PM
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Originally Posted by bad6as
really?
3850lb race weight, 10.0x@136mph means I'm averaging around 750rwhp on a pass. Peak is probably 25 rwhp higher, 15psi boost.

Of course HP is kind of subjective.

Twin walbros maxxed out, 95lb/hr injectors over 100% (due to lack of enough pump). With a .55 BSFC that puts me close to 900 hp at the crank.
Old 01-25-2011, 10:03 PM
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Originally Posted by Zombie
3850lb race weight, 10.0x@136mph means I'm averaging around 750rwhp on a pass. Peak is probably 25 rwhp higher, 15psi boost.

Of course HP is kind of subjective.

Twin walbros maxxed out, 95lb/hr injectors over 100% (due to lack of enough pump). With a .55 BSFC that puts me close to 900 hp at the crank.
Is that on E85? I would think that twin walbros and 95lb injectors would easily support 900 crank horsepower
Old 01-25-2011, 10:21 PM
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Originally Posted by Zombie
3850lb race weight, 10.0x@136mph means I'm averaging around 750rwhp on a pass. Peak is probably 25 rwhp higher, 15psi boost.

Of course HP is kind of subjective.

Twin walbros maxxed out, 95lb/hr injectors over 100% (due to lack of enough pump). With a .55 BSFC that puts me close to 900 hp at the crank.
ninetres had a 370/th400 83mm turbine 1.10 ar, at 18lbs at 3500 went 9.2 153, but it was a front mount.

not knocking your set up, just trying to learn
Old 01-26-2011, 01:28 AM
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Originally Posted by bad6as
ninetres had a 370/th400 83mm turbine 1.10 ar, at 18lbs at 3500 went 9.2 153, but it was a front mount.

not knocking your set up, just trying to learn
Just proves what I said about the turbo being capable of 800+ rwhp. A setup like mine is far from optimal if big power and good track times are the goal, but it made me happy.

Last edited by Zombie; 01-26-2011 at 01:54 AM.
Old 01-26-2011, 08:13 AM
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Yeah it flows over 120Lbs of air. But I still think you need to to put "fly" in front of wheel for the numbers to be a lot more accurate



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