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Could my cam Really be Hurting me?

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Old Jul 13, 2009 | 08:12 AM
  #61  
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Originally Posted by camarokid94
id say the 6.0 mpt70 log setup and making tons of Backpressure might wana put a guage on it to verify
+1. I wouldn't think that blowing out the hot side seals would be caused as much by poor design (assuming that the mating surfaces are flat) as it would by excessive back pressure.
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Old Jul 13, 2009 | 08:22 AM
  #62  
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Originally Posted by camarokid94
what kinda power ya makin?
700 rwhp at 17 psi through a TH350 with a 4500 stall. Enough for 146 in the quarter at full stock weight+. That's with a PT76GTS, log manifold, 3" downpipe, full 3.5" exhaust, 388 cid LTx.
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Old Jul 13, 2009 | 01:36 PM
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Originally Posted by engineermike
That's with a PT76GTS
And thats the kicker. Your turbo.


The mating surfaces are great, im going to check the back pressure, so just curious whats the best recomended way to check back pressure.

I know its taken in between the turbo and motor. i have a place, but what kind of gauge? would any pressure vacuum gauge work?

Hopefuly i can get on the dyno today and get evryone some good info.

Also i got my eye on a TC-78
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Old Jul 13, 2009 | 04:50 PM
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I know of a car that had a motor like yours with a TC78 and he went mid 9's with good mph.
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Old Jul 13, 2009 | 05:22 PM
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Originally Posted by Pro Stock John
I know of a car that had a motor like yours with a TC78 and he went mid 9's with good mph.


Also what is the best recomended way to seal the t4 flange? my buddy with a APS kit said they recomend copper rtv silicone but my car turns that **** to dust!
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Old Jul 13, 2009 | 07:48 PM
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Originally Posted by engineermike
700 rwhp at 17 psi through a TH350 with a 4500 stall. Enough for 146 in the quarter at full stock weight+. That's with a PT76GTS, log manifold, 3" downpipe, full 3.5" exhaust, 388 cid LTx.
im thinkin its more his log style setup thats the problem thank log style manifold in general. if im right all his exhaust from one side flows in the backside of the other manifold meaning all exhaust as to pass in one 2.5 or 3in tube to the flange. plus there has to be some turbulance with the pusles hitting eashother like that. just my thought. id guess you have 2 logs going to a common pipe to the flange that a different story
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Old Jul 14, 2009 | 12:10 AM
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Originally Posted by camarokid94
im thinkin its more his log style setup thats the problem thank log style manifold in general. if im right all his exhaust from one side flows in the backside of the other manifold meaning all exhaust as to pass in one 2.5 or 3in tube to the flange. plus there has to be some turbulance with the pusles hitting eashother like that. just my thought. id guess you have 2 logs going to a common pipe to the flange that a different story
I totaly see where coming from. But on the other hand there is a ton off guys running this identical kit and its seems that around the 700hp range it this kits maximum efficiancy.

i just want to get the most out of my combo.


I would feel safe to say that considering my setup with optimum conditions (turbo), my motor and H/C/I combo should be well worth the 650 range.About 560ish to the tires. Right?
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