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PRC Stage 2.5 5.3 Heads - 488 RWHP 428 RWTQ

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Old 05-16-2007, 10:00 AM
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Originally Posted by STRIPSTAR
how much C/R does the 4cc flycut decrease?
Cutting .100 per side with a 2.15 cutter is about 2cc, not 4cc btw.
Old 05-16-2007, 10:27 AM
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Originally Posted by Jon@Texas-Speed
Awesome numbers guys! Congrats on the new setup and the very impressive numbers! Looking forward to seeing the next one you guys bring down.
Thanks Jon. Hopefully we will be back down there soon with a new setup on this car, or another car.


Originally Posted by xfactor_pitbulls
Cutting .100 per side with a 2.15 cutter is about 2cc, not 4cc btw.
Thanks for the info.
Old 05-16-2007, 11:45 AM
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Originally Posted by xfactor_pitbulls
Cutting .100 per side with a 2.15 cutter is about 2cc, not 4cc btw.
yeah I was going to say, a 4cc cut would not be good! lol

good power up top, kind of surprised the bottom end isnt stronger though.
Old 05-16-2007, 04:51 PM
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Are you still using the Pacesetter Headers/Y-Pipe & Rumbler Catback?

Did you just use the Isky cutters?
Old 05-17-2007, 12:51 PM
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Originally Posted by HotRod68Camaro
Are you still using the Pacesetter Headers/Y-Pipe & Rumbler Catback?

Did you just use the Isky cutters?
Yes I have still have that exhaust. And it was the Isky cutters, I dont know the size since I borrowed it.
Old 06-01-2007, 10:43 PM
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Originally Posted by speed_demon24
Imagine owning an LT1 and reading these threads.
ask Brady (roadtrip120) about his LT and see if he feels the same way

Joe....Your my hero
Old 06-01-2007, 11:12 PM
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488 from a dam 346 is dam good. That makes those guys with the bigger motors hardly pushing 500hp upset!
Old 06-06-2007, 06:07 PM
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Originally Posted by erikthegoalie
If you had spent the time, money and effort I did, on the same (more or less) set up, and made 25+ HP less, and a SHITLOAD less in torque, you'd be confused too, trust me..

I realize I bitch in every 5.3 thread...but WTF...

You're telling me a slight mill and a different gasket is the major factor here? I don't think so fellas...

I just have a factory UN-freak ...

Rant over- apology for the repeat hijacks, NICE numbers...rock on!
Erik
the only variables are condition of vehicle, motor compression (is yours worn) and the tune, 9/10 lower numbers then the someone else with the same setup is in the tune, or the fact that its a different dyno, who cares what it dynos, what does it trap?
Old 06-06-2007, 06:41 PM
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Impressive numbers, now take it to the track
Old 06-06-2007, 10:36 PM
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Originally Posted by Eurospec2
the only variables are condition of vehicle, motor compression (is yours worn) and the tune, 9/10 lower numbers then the someone else with the same setup is in the tune, or the fact that its a different dyno, who cares what it dynos, what does it trap?
well he is a member of the 10 sec. club so that should answer your question
Old 06-07-2007, 08:11 AM
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Originally Posted by Eurospec2
who cares what it dynos, what does it trap?
I took it to Noble not too long ago. It trapped 122 on motor at 2200 DA. Thats not too impressive, but this was on the factory 10 bolt with stock gears. It was really needing gear off the line as it only pulled a 1.8 60 foot on motor. I was launching at 6k and it was still bogging pretty bad. I imagine on a good night with a proper launch it could trap 125-127 or so on motor.

The same night it trapped 122, it went 10.9 130.7 on a 100 shot, still not launching the best.
Old 06-08-2007, 04:55 PM
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What rpm were your peak #`s made, can`t really tell graph is a little fuzzy. I also have a g5x3 with all the trimmings but deciding on heads. Off topic but what pushrods are you using with those heads. BTW good #`s!
Old 06-08-2007, 09:57 PM
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nice!!!
Old 06-09-2007, 02:28 AM
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Originally Posted by CR00SS
What rpm were your peak #`s made, can`t really tell graph is a little fuzzy. I also have a g5x3 with all the trimmings but deciding on heads. Off topic but what pushrods are you using with those heads. BTW good #`s!
The car never really started losing power. It was 480+ from about 6200 to 6600, where we stopped the pull. It peaked at 6600. I dont know if this is relevant, but when it was cam only, with the Fast intake it peaked at 6200.

As of right now I am on the stock length 7.4 pushrod, but I am ordering some shorter ones soon.
Old 06-11-2007, 08:17 PM
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These numbers make me really excited. I've got a similar set of mods being installed on my car right now. I can't wait to see what it does!
Old 06-11-2007, 08:35 PM
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what wheels and tires where you running with your setup?
Old 06-12-2007, 11:13 AM
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Originally Posted by 30th t/a
what wheels and tires where you running with your setup?
Stock 2000 Wheels (17 x 9), and fairly new BFG 275's.



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