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250 max hp Dyno Run

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Old Sep 22, 2003 | 07:37 PM
  #21  
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Default Re: 250 max hp Dyno Run

Thanks guys for you help.
Trojan, yea it does have the Flowmasters, I just never mention it.
Well im pretty sure its not the timing or compression cuz my car rides good. And if that were the case wouldnt i be getting ses lights and my car would be running bad. I mean when I put the cam in i noticed the change. and it doesn't feel that slow at all.
First thing im going to do is plug and wire change. Then since im getting new cats im going to go ahead and just by a whole new exhaust. Wich i wasn't planning to do for a while but has now been moved up. Then if its still running crappy I will a-tap it. But like I said i doubt its timing or compression cuz my car runs good. I never have any problems starting it or anything. Aside from the rough idle sometimes but that is because of the cam.
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Old Sep 22, 2003 | 09:16 PM
  #22  
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Default Re: 250 max hp Dyno Run

You also might want to take the car to Irwindale on a thursday night if you are near it and see how it does in the 1/8th mile. That will clear up any question on the power problem.
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Old Sep 22, 2003 | 09:58 PM
  #23  
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Default Re: 250 max hp Dyno Run

02BQIK, I wasnt saying the muffler was a problem as it wouldn't be, I was just trying to let him know that he had an extra part that he didnt know about before.

I hear you, I was just posting my experience with that model muffler.
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Old Sep 23, 2003 | 04:46 AM
  #24  
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Default Re: 250 max hp Dyno Run

3 things...in this order.

1. ATAP
2. Go to another dyno (get A/F ratio)
3. Get to the track

Go to the track last so you don't embarrass yourself by running 15's.
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Old Sep 23, 2003 | 08:59 AM
  #25  
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From: Lancaster,PA
Default Re: 250 max hp Dyno Run

Do you have headers? Stock exhaust is killing you unless you have the dual/dual. I kept my d/d but I also have a cutout. Also was this a dyno jet?
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Old Sep 23, 2003 | 12:47 PM
  #26  
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Default Re: 250 max hp Dyno Run

i dynoed my car after i put headers/duals on
only other mods are lid, filter, free mods, !EGR, !AIR, !rearO2's
A/F started at 11.3 around 3k, and went up to 11.8 at 6k rpm
dynoed around 270hp on a DynoMite
it dynoed really low because it was running rich after taking all the emissions off
but that will be fixed when i get it tuned after a H/C install
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Old Sep 23, 2003 | 01:53 PM
  #27  
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Default Re: 250 max hp Dyno Run

The car would have to feel like a turd if it actually dyno'd those numbers. I'd lean more towards a possible tuning issue rather than bad plugs. The cats would have to be really screwed and should set an SES to cost that much power. You didnt install that cam incorrectly did you with the adjustable Rollmaster did you? I saw this about 6 mo. back that a car made peak hp at 4000 rpm and it turned out the cam was a tooth off.
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Old Sep 23, 2003 | 04:40 PM
  #28  
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Default Re: 250 max hp Dyno Run

3 things...in this order.

1. ATAP
2. Go to another dyno (get A/F ratio)
3. Get to the track

Go to the track last so you don't embarrass yourself by running 15's.
A/F was about 12/1 give or take a couple tenths. thats normal i believe.

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Old Sep 23, 2003 | 10:52 PM
  #29  
red ws6 99's Avatar
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Default Re: 250 max hp Dyno Run

I did not see it mentioned but what type of dyno do they use. If its a dynojet then it might be slightly low, 99 A4s with no mods averaged about 270 rwhp. If it was a mustang inertia dyno they are more accurate and will read a lot lower and would be probably about right. You would hate to see the hp values for a stock car at altitude.

Gary
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Old Sep 23, 2003 | 10:59 PM
  #30  
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Default Re: 250 max hp Dyno Run

even a mustang dyno would register more than 250 something rwhp. in fact, probably around 330-340 rwhp on a mustang dyno. major knock retard?
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Old Sep 23, 2003 | 11:28 PM
  #31  
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Default Re: 250 max hp Dyno Run

I dyno'd like 270rwhp...on a dynojet...still dont know why because I ran 12's in the same way it sat that day I dyno'd 270rwhp.
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Old Sep 23, 2003 | 11:31 PM
  #32  
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Default Re: 250 max hp Dyno Run

lets not confuse RWHP with ET, they are not a linear comparison. ET is in your setup and track.
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Old Sep 24, 2003 | 01:09 AM
  #33  
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Default Re: 250 max hp Dyno Run

Take it to the track man. Those are the best numbers to see if something's wrong. If you're not running 12's something's wrong...
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Old Sep 24, 2003 | 11:33 AM
  #34  
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From: So Cal
Default Re: 250 max hp Dyno Run

I did not see it mentioned but what type of dyno do they use. If its a dynojet then it might be slightly low, 99 A4s with no mods averaged about 270 rwhp. If it was a mustang inertia dyno they are more accurate and will read a lot lower and would be probably about right. You would hate to see the hp values for a stock car at altitude.

Gary
I think it was a DynoJet. Trojan would know. But I think it was. But still with the cam in my car it shouldn't be that low.
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Old Sep 24, 2003 | 12:47 PM
  #35  
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From: Pflugerville, TX
Default Re: 250 max hp Dyno Run

Also maybe try taking the Predator tuning out. I have seen that cause problems on some other cars, but work great on others.
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Old Sep 24, 2003 | 03:02 PM
  #36  
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From: So Cal
Default Re: 250 max hp Dyno Run

Also maybe try taking the Predator tuning out. I have seen that cause problems on some other cars, but work great on others.
I need the tune or else the car would run like crap. It will stall or shut off because of the idle being to low.
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