LT1 Based Engine Tech 1993-1997 LT1/LT4 Engine Related

Car dynoed untuned, how much to be gained by dynotune?

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Old Jul 29, 2004 | 11:54 PM
  #16  
lovescamaros25's Avatar
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Re: Car dynoed untuned, how much to be gained by dynotune?

Sometimes I want to hit peopel in the head with a bumpstick.An a/f ratio of about 13 to 1 is about equal to 13 pounds of air to 1 pound of fuel.Same with a 11 to 1 ratio.Did you guys know that with an air/fuel ratio of 14.7 to 1 about 10,000 gallons of air enters the engine for every 1 gallon of fuel.
Old Jul 30, 2004 | 12:13 AM
  #17  
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Re: Car dynoed untuned, how much to be gained by dynotune?

Yeah, that's at LEAST 300-400 hp off from a typical Hotcam car...
Old Jul 30, 2004 | 08:31 PM
  #18  
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Re: Car dynoed untuned, how much to be gained by dynotune?

The thing that gets me is... I know the numbers are low but i trapped 107.xx at the track with those numbers....I mean am I the only one who thinks that the dyno numbers and trap speed dont match??? So i am kinda confused. My friends LS1 dynoed on THE SAME DYNO 300 rwhp and 325 rwtq and i pull 2 cars on him from 55 to 110..... So like i said before. I dunno. But the car still feels strong as heck and i can only hope for it to get stronger. Oh and i think i can make it to your bbq joe....if there's free beer involved.


Chris

Last edited by 95z28 -quicksilver; Jul 30, 2004 at 08:33 PM.
Old Jul 30, 2004 | 11:43 PM
  #19  
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Re: Car dynoed untuned, how much to be gained by dynotune?

Don't worry about it, it's a Mustang Dyno and your trap speed is right around where it should be.
Old Jul 31, 2004 | 02:13 AM
  #20  
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Re: Car dynoed untuned, how much to be gained by dynotune?

Originally Posted by 95z28 -quicksilver
Oh and i think i can make it to your bbq joe....if there's free beer involved.


Chris
oh yes there is gonna be beer, what r u doing this weekend? i got my intake manifold all disconnected and i'm pulling it off tomorrow if ur interested in helping...i have no idea how much those things weigh
Old Jul 31, 2004 | 03:06 AM
  #21  
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Re: Car dynoed untuned, how much to be gained by dynotune?

Don't forget he was on a mustang dyno guys.
Old Jul 31, 2004 | 03:20 AM
  #22  
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Re: Car dynoed untuned, how much to be gained by dynotune?

Didn't I just say that?
Old Jul 31, 2004 | 11:16 AM
  #23  
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Re: Car dynoed untuned, how much to be gained by dynotune?

Originally Posted by Compstall
Don't worry about it, it's a Mustang Dyno and your trap speed is right around where it should be.

Cool. I knew the mustang dyno measured less, I just didnt know it measured THAT much less.... That makes me feel better, Thanks.


Chris
Old Aug 9, 2004 | 05:53 PM
  #24  
95z28 -quicksilver's Avatar
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Re: Car dynoed untuned, how much to be gained by dynotune?

Well I got the car DYNOTUNED!!!

Old Numbers New numbers
265rwhp 294 rwhp
274rwtq 297 rwtq
VERY HAPPY WITH THE TUNE , I would recommend CCS tuning to anybody in the central texas area. Jim does good work. So there ya have it, car runs ALOT better and I cant wait to get it back to the track.... Guess 30 rear wheel was possible with a dynotune..... I want to get it dynoed on a dynojet though... Now that its tuned CORRECTLY! Wonder what numbers i would see on one? Anyways, just following up on my thread.
Old Aug 9, 2004 | 06:08 PM
  #25  
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Re: Car dynoed untuned, how much to be gained by dynotune?

Damn Chris, very nice , now i really really DON'T wanna race u!!!! but sooner or later we need to get out to the track, i still gotta run my car, we'll see if i can keep up
Old Aug 9, 2004 | 06:45 PM
  #26  
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Re: Car dynoed untuned, how much to be gained by dynotune?

what did you end up tweaking on the dyno & what A/F did you end up with?

matt.
Old Aug 9, 2004 | 07:33 PM
  #27  
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Re: Car dynoed untuned, how much to be gained by dynotune?

I dont know exactly what the guy did but i know he had to add a bunch of timing and stuff... I ended up with an 12.9 A/F ratio, when we went any leaner it actually made less power.. And both the hp and tq curves look MUCH better than the baseline.... I have the dynographs but no way to put them up unfortunately. Oh and Joe.... Get a job greaser.
Old Aug 10, 2004 | 02:36 AM
  #28  
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Re: Car dynoed untuned, how much to be gained by dynotune?

Originally Posted by 95z28 -quicksilver
I dont know exactly what the guy did but i know he had to add a bunch of timing and stuff... I ended up with an 12.9 A/F ratio, when we went any leaner it actually made less power.. And both the hp and tq curves look MUCH better than the baseline.... I have the dynographs but no way to put them up unfortunately. Oh and Joe.... Get a job greaser.
i leave for college Aug. 20th.... WHERE THE HELL AM I GONNA WORK FOR 10 DAYS!!!!!!!!!!!!!!!!!!!!!??????????????????????
but i'll probably get a job in SA
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