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APS 402 back on the dyno 1 year later

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Old 05-10-2008, 07:14 PM
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Default APS 402 back on the dyno 1 year later
Made a few runs with the GTO today

Here the list
402ci
4340 crankshaft
Callies CompStar H beams
Diamond pistons 11520
Speed inc. Comp cams TU1 (225/225 .588/.588 113º)
Dart heads, out of the box fitted with patriot duals.

APS 2gen turbo system 50lbs min turbochargers, run with APS supplied .5 bar WG springs.

Had some tire spin, pretty much on par with last years run.


Time for a new clutch, some drag radials and up the boost

heres a pic of my new clutch
Last edited by Fraser@SpeedInc; 05-10-2008 at 07:27 PM.
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Old 05-10-2008, 09:34 PM
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Nice power but why not crank the boost up to 12 or 15psi and see what these things can do on a 402? Is there a reason you are running stock engine boost levels on a nice forged up motor?
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Old 05-10-2008, 09:45 PM
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Originally Posted by MY99TAWS6
Nice power but why not crank the boost up to 12 or 15psi
have to make customers happy first, one of the first times this year i've had some time for the car.

Have some 1 bar springs plan on swapping in
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Old 05-10-2008, 09:52 PM
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Awesome numbers with such low boost very nice.

I cant wait to see what that thing will do with 15psi I say close 800rwhp maybe???
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Old 05-10-2008, 11:02 PM
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I am dying to see if the standard turbos can do 800 to 850 rwhp on a 402 or 408.So be watching real close when you get those 1 bar springs.
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Old 05-10-2008, 11:40 PM
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Peter has been posting about 65lbs./min turbos being used on GTO system, i'd like some turbos that can let me run it out to 7000rpm
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Old 05-11-2008, 02:14 AM
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nice #'s, what does it run at the track?

jk fraiser i love you. u still have a lane tho

BB
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Old 05-11-2008, 10:11 AM
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Good numbers. Now crank up the boost and let bitch eat.
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Old 05-11-2008, 11:36 AM
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very nice numbers Frasier! i hope i can come close to those numbers on 8psi....after break in ill let her rip to about 13-14psi and see what kinda power it puts down.
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Old 05-11-2008, 11:42 AM
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Gotta love that torque curve. looks good.
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Old 05-11-2008, 11:55 AM
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Cool! Nice to see you back on it.
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Old 05-11-2008, 12:56 PM
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What kind of clutch is that? What is your guys favorite twin disk?
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Old 05-11-2008, 01:50 PM
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Originally Posted by 52172
What kind of clutch is that? What is your guys favorite twin disk?
That is McLeod RXT street twin

Originally Posted by TNTramair
very nice numbers Frasier! i hope i can come close to those numbers on 8psi....after break in ill let her rip to about 13-14psi and see what kinda power it puts down.
Saw the run down of your parts, no reason it shouldn't perform well.
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Old 05-12-2008, 11:29 AM
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Very sweet ride man and awsome numbers. That TU1 cam is a speedinc custom cam that you guys have had for a while right. How do you feel it would work on a 383 with 9 to 1 compression, 317 heads and a APS kit.
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Old 05-12-2008, 04:26 PM
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Originally Posted by WARPNOVA
Very sweet ride man and awsome numbers. That TU1 cam is a speedinc custom cam that you guys have had for a while right. How do you feel it would work on a 383 with 9 to 1 compression, 317 heads and a APS kit.
yes, however I have another cam in mind I want to try, just a tad larger, see how it reacts.
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Old 05-12-2008, 07:06 PM
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any vids of the car? i wanna hear that beast
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