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MaJOR DYNO Dissapointment!!

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Old Dec 21, 2004 | 12:53 AM
  #1  
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Default MaJOR DYNO Dissapointment!!

First time i had ever Dynoed my car .. it had
3.73
3600 Stall
16x8 rims
MTI lid and Cutout
Made 300hp 315tq

Dyno tuned today with
3.73
3600 stall
Kook LTs
LS6 intake
and G-force tune
also added 18x10.5 motorsport Z06s in back
best Dyno
308hp and 307tq very sad day for me
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Old Dec 21, 2004 | 05:28 AM
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Did u use the same dyno before and after the mods? If yes i would look at doing a leak down test or compression test to see where ur car at. Good luck man.
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Old Dec 21, 2004 | 08:27 AM
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those zo6 knock offs are heavy as ****. why don't you dyno it with your stockers to get a more accurate comparason. i think you will be suprized.
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Old Dec 21, 2004 | 09:09 AM
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Did it feel faster after your mods? I'd be bummed too, but I'd be getting a second opinion in the way of better track times, better butt-o-meter feel...something. Anything. Let us know what you come up with.
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Old Dec 21, 2004 | 10:57 AM
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Originally Posted by algws6
those zo6 knock offs are heavy as ****. why don't you dyno it with your stockers to get a more accurate comparason. i think you will be suprized.
I'd also be willing to bet that the wheels are to blame.
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Old Dec 21, 2004 | 11:32 AM
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saw you the other day, those wheels are awesome

When my car had most of the bolt-ons and was running mid to high 11's the car would only dyno 314 on MTI's dyno and only 310 on TSP's dyno. All dyno's are different. I wouldn't put so much into dyno numbers.
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Old Dec 21, 2004 | 02:41 PM
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Ty on the wheels Lynda...... yea i'm scared to go to the track cause i dont know what ill do if i run a shitty time.

Your low dyno numbers due to Stall?
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Old Dec 21, 2004 | 05:36 PM
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I would be a little worried. My car(2000 Z with LT/ORY(Cutout open),HookerCatback,Lid,Maf Put down 333 to the wheels. No stall. I dont know anything about our cars when it comes to working on them. All i can say is that is low for what you have done. I wouldnt be to worried. Just call around, tell then your problem and youll work it out. If yo need anyhting big check out the sponcers ---->
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Old Dec 21, 2004 | 06:48 PM
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Well i did pull 331hp when we locked the converter.. so i know my engine is making power but not with the verter.
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Old Dec 21, 2004 | 09:43 PM
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What was your A/F?
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Old Dec 21, 2004 | 10:05 PM
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A 18 x 9.5 C5 with 275/35/18 weighs 53 lbs compared to a 16 x 8 stock TA rim/tire of 42-lbs. Those 10.5's weight even more.
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Old Dec 21, 2004 | 10:17 PM
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Most of your new HP was probably gobbled up by
those 18x10.5 wheels. You added quite a bit of
rotating mass to your ride. I agree with algws6,
put the 16x8 back on, dyno it and see what you get.
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Old Dec 21, 2004 | 11:46 PM
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Originally Posted by 99PTA
Ty on the wheels Lynda...... yea i'm scared to go to the track cause i dont know what ill do if i run a shitty time.

Your low dyno numbers due to Stall?
yeah, A4 cars with high stalls dont dyno well unlocked.
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Old Dec 22, 2004 | 12:15 PM
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So basically i crapped on my car with these rims??? cause i'm not one of those people that goes to change tires for races thats why i got the Nittos 305s in the back.... what SHOULD my 1/4 time with my rims on?

and will i be slower on the street with my rims ? i dont feel any slower

Last edited by 99PTA; Dec 22, 2004 at 12:57 PM.
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Old Dec 22, 2004 | 01:21 PM
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YOu might not be slower. What they are saying is your losing HP on the dyno because of your mass you added. Like somebody said above, they ran 11's??? with 315-320 hp.
Just dont take the dyno for granted unless you want a dyno queen. Then put a bottle on it.
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Old Dec 22, 2004 | 01:52 PM
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wheels are the problem..no doubt..
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Old Dec 22, 2004 | 02:12 PM
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so i;m not any slower... i just cant turn the wheels as fast on the dyno?
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Old Dec 22, 2004 | 04:53 PM
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It takes more power to turn a larger heavier wheel
than a smaller lighter one.

You will probably have less traction issues with the
new wheels which will help your track times.
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