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540hp TPI?

Old Dec 27, 2006 | 01:35 PM
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From: MA, USA
Car: 83 bird
Engine: 305/383
Transmission: WC T5
Axle/Gears: 3:42
540hp TPI?

http://cgi.ebay.com/ebaymotors/2007-...QQcmdZViewItem

Do those specs sound like 540hp? I didn't think the TPI setup could make that kind of power... regardless of mods!
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Old Dec 27, 2006 | 03:07 PM
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From: Pittsburgh PA
Car: 89 Iroc-z
Engine: 555 BBC Turbo
Transmission: TH400
Axle/Gears: MWC 9” 3.00
he'd be lucky to get over 400hp on that motor at the crank....it needs 150shot atleast to touch 500 hp.
and the cam 2000-6000 rpm range is too much cam for that TPI 383. i never heard of those heads either, but i'm sure they dont flow as well as or better than trickflow/dart pro/AFR's.

i dont even think he has aftermarket runners either
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Old Dec 27, 2006 | 06:14 PM
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From: Yellowknife, NWT, Canada
Car: 84 Z28
Engine: 357
Transmission: TH-350C
Axle/Gears: 3.43
I think they are dreaming a bit...

It probably makes 540ft/lb of torque, that i wouldnt doubt. but for a basically bone stock TPI setup(edel base), it probably couldnt flow enough to make 540hp.

Ill bet the polishing on the outside of the runners added 100hp at least
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Old Dec 27, 2006 | 07:34 PM
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From: Cypress, California
Car: 1989 GTA
Engine: 369 TPI
Transmission: 4L60E
Axle/Gears: 3.70 Nine Bolt
I agree with the above posts. He would need a big shot of nitrous to do it. The Edlebrock manifold and runners will not support that kind of power level plain and simple. I would love to see the dyno graph as he seems to "know" the power level.
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Old Dec 28, 2006 | 09:11 AM
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I'm curious how that 'Pro Stock' camshaft works with it.
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Old Dec 28, 2006 | 01:55 PM
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From: Caldwell,ID
Car: 2005 BMW 545i
Engine: 4.4L N62B44
Transmission: 6spd auto
Axle/Gears: Rotating
another thing to think about
30lb/hr injectors supporting over 500hp? what maybe very lean or at very high duty cycles.
notice also how there is no contact seller. or at least not one that I have noticed.
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Old Dec 28, 2006 | 05:28 PM
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From: cAshburn, VA
Car: 1989 GTA
Engine: 5.7l TPI
Transmission: 700r4
Axle/Gears: 3.27
Good point about the injectors.

SDPC has a zz383 tpi setup (super-ram) rated at 405. With an agressive cam and a set of AFR eliminator heads (replacing the fast burn heads), compression up to 10.5:1 you might get 500, maybe.

Actually thinking about ordering that next year for the GTA, really need to hit that 550 mark though.

Looks like SDPC has a LS 90mm intake/tb/fuel setup for the L92 type heads, hmmmm...
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Old Dec 29, 2006 | 03:34 PM
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From: Windsor Ontario Canada
Car: 89 jaguar xjs convertable
Engine: 89 L98 5.7 TPI
Transmission: 700R4
Axle/Gears: 3.23 dana 44
How do you say....bwahahahahahahahahahahahahahahahah! It might have some nice pieces in that buggy, but I have no respect for people that just outright lie! Show me a dyno sheet cause there isn't a snowballs chance in HELL that TPI set-up will support those horsepower #'s.


AND all of that power through stock runners and a MAF!

Last edited by Rob Wade; Dec 29, 2006 at 03:43 PM.
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Old Dec 29, 2006 | 03:55 PM
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AS I LOOK OVER THE AD, HE'S RUNNING 10:1 COMPRESSION AND 200-CC HEADS WHICH GIVES LOTS OF ROOM TO BREATH. WHEN YOU MENTIONED TPI-SETUP IT GIVES THE IDEA HE TOOK A 5.0 ENGINE OUT A IROC AND PUT IT ON THE BACK OF A MUD-BUGGY. NOT THE CASE HERE.

I'M ALWAYS AMAZED AT WHAT PEOPLE WILL DO WITH MONEY AS IS THE CASE HERE ON A SWAMP-BUGGY.
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