99 Trans Am M6 w/Bolt-ons

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May 14, 2008 | 08:34 PM

Ogriff

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From: Fort Carson

99 Trans Am M6 w/Bolt-ons

My 99 T/A 6 speed. Ls6 Intake, SLP Long Tube Headers, No Cats, SLP Loudmouth Exhaust, and SLP Ram Air.
325.6 RW Max Torque
314.1 RW Max HP

Sound about right?

Was on a Superflow...

May 14, 2008 | 09:02 PM

Chris Gage

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Do you have a graph, seems a touch low to me but nothing to really get discouraged about.

May 14, 2008 | 11:20 PM

Ogriff

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From: Fort Carson

Graph

I'll post the graph later. I dont have a scanner. Soon though.
Is the 305 stock HP advertised, mean at the crank?

May 14, 2008 | 11:43 PM

calz28

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i think it's a little low, the 305hp is to the wheels i suppose

May 14, 2008 | 11:44 PM

hellrazor

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With the intake and headers I would say your a bit low. But they are just #. Did you do all the mods at once? If the car feels stronger than before and your happy with how is runs, I wouldnt worry about it.

May 14, 2008 | 11:55 PM

'Trust'

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From: Eternity

305 is flywheel GM rated power, all LS1's basically make 350HP, everything else is for marketing or to make some models seem inferior to help justify higher price tags on the more 'superior' models. I.e. F-body vs. Corvette.

For a Dynojet your numbers are a little low, and the TQ is usually 5-20 units above the HP, which is weird yours isn't. Do you have a graph? I don't know much about Superflow Dyno's so its probably dead on. If they can make any kind of simulated load on the dyno that lowers dyno numbers.

May 15, 2008 | 12:25 AM

peterlawl84

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I have an A4 99 t/a with kooks LT, LS6 intake, cats and borla, and the suncoast ramair box/hood and made 336.1 hp on a dyno...so I would think your numbers are alittle low since its an M6

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May 20, 2008 | 05:05 AM

95 Z28

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Definitely a little on the low side. Either throw it on a different dyno and see if you get similar results or take it to the strip and see if it's doing what it should. Low dyno numbers aren't anything to be bummed about if the car performs around where it should for the mods it has.

May 20, 2008 | 06:12 AM

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Bad Blue WS6

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do you have 853's on there by chance? Just curious as to what you would do with 241's vs the 853's

May 20, 2008 | 11:08 AM

#11

PewterScreaminMach

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Seems a tad low to me, but I, too, know nothing about the Superflow dyno.

May 23, 2008 | 05:02 AM

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oberth1

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From: Staten Island NY, East brunswick NJ

waaayyyy too low. My a4 98 with LS6 intake, Kooks, borla catback, slp intake kit made 335/355 on stock trans and rear. with 133k miles on it. Take a peek at your setup and AF ratio. something sounds off

May 23, 2008 | 05:14 AM

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Platinum WS6

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yea man, it is low for sure, you should be in the 330+ rwhp range with those mods.

May 23, 2008 | 08:13 PM

#14

smg267

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did they tune the car? Mine made 315 h.p. and 355 t.q. before the tune then 335 360 after. The only mods at the time were slp long tubes no cats through the stock catback and a lid.

May 24, 2008 | 10:24 AM

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MattZ28

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My 02 ss with lid and no muffler made 326 330tq

May 24, 2008 | 11:27 AM

#16

5_02ls1

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From: Virginia

nothing

Quote:

Originally Posted by Bad Blue WS6

do you have 853's on there by chance? Just curious as to what you would do with 241's vs the 853's

there isnt enoughj difference in any of the heads to matter....my 98 had the 806 castings and made 34x bolt ons and 38x with a smallish cam....through an a4...either he was on a low reading dyno or the car needs a tune...