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Whats wrong with my dyno results

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Old Jan 16, 2004 | 04:12 PM
  #1  
builtprelude's Avatar
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Default Whats wrong with my dyno results

I went to a local dynojet and had my car dynotuned after the breakin period and my car basically went unchanged through the dyno session the peak hp was only 181.2 whp and 145.6 ftlbs of torque I think there is something wrong they did almost 10 runs playing with the vafc-2 and all they could really do was flatten out the charts please give me reasons why the numbers are so long all of the stuff I have is in my sig. It is an obd-2 car but i am ver dissapointed do i just need a better tuner or a different computer or what. I would post the charts but i don't know how to. Thanks
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Old Jan 16, 2004 | 04:15 PM
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Default Re: Whats wrong with my dyno results (builtprelude)

Yes your numbers seem to be low but did they have an A/f monitor hooked up?
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Old Jan 16, 2004 | 04:15 PM
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Default Re: Whats wrong with my dyno results (builtprelude)

Did you tune your cams also? I see that you dont have any cam gears in your sig. Not good when you have upgraded cams and a milled head.
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Old Jan 16, 2004 | 04:19 PM
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Default Re: Whats wrong with my dyno results (Cottonwoodz)

Good point Cottonwoods The only reasons I can come up with would be there is something wrong with the motor (lacking compression) or the tuner was not well qualified in tuning your car.
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Old Jan 16, 2004 | 04:39 PM
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Yeah those numbers look really low. Import tuner magazine dynoed a lude with bolt ons and crower cams and resulted in:
Peak HP: 187.0
Peak TQ: 153.6
This is for comparison, so either something is wrong with the motor or your tuner was no good? Kinda hard to pinpoint the exact problem, so good luck.


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Old Jan 16, 2004 | 06:12 PM
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Default Re: (persianprelude)

It would really help if you posted your dyno graph but since you say you don't know how you could send it to me or someone else on this board so they can post it. Also, what kind of dyno did you use? Dynojet, Dynopack, Mustang dyno?
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Old Jan 16, 2004 | 09:41 PM
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99spanishGT
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Default Re: (caLiH22A)

maby your clutch or tires were slipping!!!
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Old Jan 16, 2004 | 10:30 PM
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Default Re: Whats wrong with my dyno results (builtprelude)

Maybe you didnt break in your pistons right? And prolly the tuner?
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Old Jan 16, 2004 | 10:57 PM
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yah I have str cam gears and this test was conducted on a dynojet. But the place said that they contacted crower and they said not to mess with the cam gears the a/f was hooked up and it was a little above 14 the whole time
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Old Jan 16, 2004 | 10:59 PM
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Default Re: (builtprelude)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by builtprelude &raquo;</TD></TR><TR><TD CLASS="quote">yah I have str cam gears and this test was conducted on a dynojet. But the place said that they contacted crower and they said not to mess with the cam gears the a/f was hooked up and it was a little above 14 the whole time</TD></TR></TABLE>
I dont know man that sounds kinda shady. Either way with type S pistons those cams, and all the stuff you got you should of hit the 200 mark. Something is wrong.
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Old Jan 16, 2004 | 11:01 PM
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Default Re: (builtprelude)

they tried to add fuel with the vafc but the car responded horribly lost a bunch of hp when vtec hit and they didn't really make a difference in the car They tuned the car for about 3 hrs and didn't really make a difference. I think my clutch is slipping a little but would that make that big of a difference I was hoping for much bigger numbers than this what should I do to take care of this problem what problems should I look for or should I simply try to find a good tuner
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Old Jan 16, 2004 | 11:08 PM
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Default Re: (builtprelude)

too simple but maybe the answer.

maybe a tune-up for your car is in order. oil change, spark plugs, air filter..... just a suggestion

try to post up the dyno
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Old Jan 17, 2004 | 01:00 AM
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Default Re: (builtprelude)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by builtprelude &raquo;</TD></TR><TR><TD CLASS="quote">...But the place said that they contacted crower and they said not to mess with the cam gears the a/f was hooked up and it was a little above 14 the whole time</TD></TR></TABLE>

Why would crower tell the shop not to mess with the cam gears?
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Old Jan 17, 2004 | 01:01 AM
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<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by builtprelude &raquo;</TD></TR><TR><TD CLASS="quote">...But the place said that they contacted crower and they said not to mess with the cam gears the a/f was hooked up and it was a little above 14 the whole time</TD></TR></TABLE>

Why would crower tell the shop not to mess with the cam gears?
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Old Jan 17, 2004 | 08:21 AM
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Default Re: (OTT)

always keep your options open...if your confident in the dyno tuners let them see what they can do w/ the cam gears
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Old Jan 17, 2004 | 01:03 PM
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Default Re: (killa_lude)

post your dyno so we can see it and help you out more.
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Old Jan 17, 2004 | 01:10 PM
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Default Re: (killa_lude)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by killa_lude &raquo;</TD></TR><TR><TD CLASS="quote">always keep your options open...if your confident in the dyno tuners let them see what they can do w/ the cam gears</TD></TR></TABLE>

what he said^^^^^^^^^^^^^^^^
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Old Jan 17, 2004 | 02:31 PM
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well I am stumped because I don't think just tuning the cam gears will give me all the power I think I should be making. Does anyone know of a good tuner to take care of the problem in the Norcal area. Or would it be better getting it looked at by a mechanic. I will try to get the graphs up by tonight
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Old Jan 17, 2004 | 02:35 PM
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Default Re: (builtprelude)

Im guessing, maybe its your header, pistons not sealing properly, and maybe the tuning.
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Old Jan 17, 2004 | 02:44 PM
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Default Re: Whats wrong with my dyno results (builtprelude)

OBDII and the 5th gen distributor doesn't let you advance the timing at all. There's a few horsepower there. With OBD1 I got a few extra HP when the timing was advanced to 17 degrees from the stock 15 degrees. I would think you have a potential for 190 whp in your set-up.
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Old Jan 17, 2004 | 03:29 PM
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Somebody post his dyno plot
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Old Jan 17, 2004 | 04:02 PM
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Ill get the dyno plots up late today or early tomorrow morning
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Old Jan 18, 2004 | 10:17 AM
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Default Re: (builtprelude)

I'm suprised no one else asked you this but, what are you running from the header back? Stock cat? What kind of exhaust? If you're running a restrictive setup past the header exit your peak numbers are going to be significantly less than they could be.
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Old Jan 18, 2004 | 11:47 AM
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Default Re: (Mike95lude)

where did you get your car dyno at?
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Old Jan 18, 2004 | 01:24 PM
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Default Re: (H22ek4)

well heres a dyno of what mine did to use a a point of reference. yours should be making over 200whp easily. all i have is an i/h/e and a crower vt w/stage 2 cams.


i sure i could have broken 200, but i dont care to run it much leaner. better safe than sorry.
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