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Fellas, im getting ready to sell everything. HELP

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Old Feb 28, 2014 | 03:39 PM
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Default Fellas, im getting ready to sell everything. HELP

Im stumped and cannot figure it out. I have a 6.0 forged and studded, 317's, custom brian tooley turbo cam, S475 on 15 psi, dual water / meth spraying 21 GPH total of 50 / 50, my air temps are in the 130's with no intercooler, blah,blah...On the dyno, its 11.5 across the board, 18 degrees of timing and only makes 430 rwhp! WTF?! My tranny is a stock TH350 with a cheapo Summit 2300 stall. The dyno graph climbs up pretty agressivly until 4k then starts to level out slowly. Am I blowing through the converter? Are the clutch discs in the tranny not holding up? This combo should be making another 200 HP


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Old Feb 28, 2014 | 03:42 PM
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have you done a boost leak test?
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Old Feb 28, 2014 | 03:48 PM
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yep. there isn't a leak anywhere.
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Old Feb 28, 2014 | 03:55 PM
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It could be a number of things........what do you have for valve springs? A cheapo Summit stall for sure is not helping. Where are you reading boost at? Personally I am not a fan of meth. I have seen guys try to use it and lose power
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Old Feb 28, 2014 | 04:00 PM
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I would do the gear calculator once you get the specific mph for a given rpm say 6000rpm you can compare that to the dyno. That will give you a ideal of converter slip.
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Old Feb 28, 2014 | 04:01 PM
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Originally Posted by THADD
It could be a number of things........what do you have for valve springs? A cheapo Summit stall for sure is not helping. Where are you reading boost at? Personally I am not a fan of meth. I have seen guys try to use it and lose power
Brian Tooley dual springs with hardend pushrods. Boost id being read at the rear of the intake manifold from my AEM tru boost and the dyno. It makes 15 PSI around 5500 rpm.
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Old Feb 28, 2014 | 04:08 PM
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Originally Posted by Quickfrc
Brian Tooley dual springs with hardend pushrods. Boost id being read at the rear of the intake manifold from my AEM tru boost and the dyno. It makes 15 PSI around 5500 rpm.
just a sugesstion, I have heard spintecs rob some power before, is the full exhaust hooked up right now?
Idoubt its good for 200 HP but might help
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Old Feb 28, 2014 | 04:12 PM
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Originally Posted by mike13
I would do the gear calculator once you get the specific mph for a given rpm say 6000rpm you can compare that to the dyno. That will give you a ideal of converter slip.
Just did it. I should be at 121 MPH at 5800. My dyno sheet say 112. Would that kill over 110 hp?
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Old Feb 28, 2014 | 04:14 PM
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Originally Posted by I-H8-RICE
just a sugesstion, I have heard spintecs rob some power before, is the full exhaust hooked up right now?
Idoubt its good for 200 HP but might help
yes. full exhaust is hooked up. 4" single all the way to a single 4" in/out spintech then over the axel, out the back.
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Old Feb 28, 2014 | 04:22 PM
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I agree with Thadd. Meth helps sometimes and then not others. My car losses power with meth(over 100 rwhp at the same AFR, low 11's)

If you can't take advantage of TONS of timing or boost the meth is useless.

At 18* you are not close to problems with 15 lbs. Pull the meth fuse, and start back on the tune, adding fuel as you go. Your car will be lean if you do a full pull, so start of low and retune the whole car.
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Old Feb 28, 2014 | 04:31 PM
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Originally Posted by NufNuffZ28
I agree with Thadd. Meth helps sometimes and then not others. My car losses power with meth(over 100 rwhp at the same AFR, low 11's)

If you can't take advantage of TONS of timing or boost the meth is useless.

At 18* you are not close to problems with 15 lbs. Pull the meth fuse, and start back on the tune, adding fuel as you go. Your car will be lean if you do a full pull, so start of low and retune the whole car.
my car runs on 91 and no intercooler. I need the meth and water. without it my iat's are well over 200 degrees at just 8 psi.
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Old Feb 28, 2014 | 04:33 PM
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Oh wow. OK. That high of IAT would make a difference.

My IAT off meth @20 lbs are around 175 after a 1/4 mile run and 130 with meth, but it still makes more power off of it.
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Old Feb 28, 2014 | 04:37 PM
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Originally Posted by NufNuffZ28
I agree with Thadd. Meth helps sometimes and then not others. My car losses power with meth(over 100 rwhp at the same AFR, low 11's) If you can't take advantage of TONS of timing or boost the meth is useless. At 18* you are not close to problems with 15 lbs. Pull the meth fuse, and start back on the tune, adding fuel as you go. Your car will be lean if you do a full pull, so start of low and retune the whole car.
And I agree here
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Old Feb 28, 2014 | 05:14 PM
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Trans and converter are **** and your prob blowing through the converter and the trans is prob slipping too
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Old Feb 28, 2014 | 05:45 PM
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I agree, probably blowing through the verter. Those numbers are wayyyy low.
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Old Feb 28, 2014 | 06:36 PM
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Pushing through the converter.
/thread
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Old Feb 28, 2014 | 08:03 PM
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i cant imagine that converter being right for the setup.
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Old Feb 28, 2014 | 08:19 PM
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Take that muffler off...
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Old Feb 28, 2014 | 08:21 PM
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Originally Posted by Quickfrc
Just did it. I should be at 121 MPH at 5800. My dyno sheet say 112. Would that kill over 110 hp?
yes it could.
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Old Feb 28, 2014 | 08:39 PM
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Originally Posted by JAX04
Take that muffler off...
Cant do it......#Becausestreetcar

lol
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