Car making low numbers

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Dec 24, 2003 | 05:51 PM

Kaji98Z

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From: Duncanville, Texas

Car making low numbers

First off the car is a 1998 6 speed w/ 48,000 miles.
stock heads
MAC's
3" duals X pipe 2.5 magnaflow mufflers
ls6 intake
ls6 clutch
lid w/ holley filter
ported MAF - I know I need a stocker but that's what I have now
226 .591 110 cam
MSD wires
ngk tr55 plugs
full ls1 edit tune
13.0 a/f ratio the entire run

I had it dynod last summer and it made 358rwhp 341rwtq. I'm pretty sure that is very crappy. The car did have a SES light on at the time from the idle sensor (pretty sure that's what it's called) crapping out. I know it's not the tune, very reputable tuner tuned it. I just don't know why my car would make that pathetic power #'s. I've been told that the bearings might be crapping out, but I have no idea. The car runs great, never overheats, never stalls, runns pretty much perfect besides the low power #'s. Think the only thing that will help is a rebuild? I don't know what the problem is. I'd like to have some peoples opinions on what the problem is. Thanks a lot.

Dec 24, 2003 | 10:07 PM

Slowhawk

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From: Bridgewater,Ma

Could be many things.The SES light could of been putting the car in low octain table.Tune could be off.Piston rings could be shot.
Have a copy of the dyno graph?

Dec 24, 2003 | 10:23 PM

98SS Blackattack

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From: Indianapolis

was it on a dynojet? i would think it could pull 380 or so if things were right.With that cam 400 is reachable with all the bolt-ons

Dec 24, 2003 | 10:59 PM

jrp

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From: Valencia, Ca

post the dyno and take it to the track, thats the real indicator of power.

Dec 25, 2003 | 07:04 PM

Kaji98Z

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From: Duncanville, Texas

I didn't think that the SES did that unless it is blinking?

It was a dynojet

Here is the graph

http://www.dfwstangs.net/forums/show...hreadid=117693

Last edited by Kaji98Z; Dec 25, 2003 at 07:12 PM.

Dec 25, 2003 | 09:24 PM

Slowhawk

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From: Bridgewater,Ma

Between 3-4000 there looks like there is a loss of power,but it could be the Cam you have.I would suspect the Edit tune is not maximized with timing or the Mass air is suspect.These are only guesses..