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Cheap local dyno day 8/21 - Downey.

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Old Aug 21, 2010 | 11:15 PM
  #151  
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Originally Posted by HB SS/TC
It's low reading but you're supposed to look at the improvements after
Not much to improve upon other than a greater trq/hp number across the chart.

His bolt on stock pulley dyno was butter
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Old Aug 21, 2010 | 11:16 PM
  #152  
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im bettign the dyno was set up wrong and ur power tq curves at a wrong rpm so your tq might be right, but ur hp will be low
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Old Aug 21, 2010 | 11:19 PM
  #153  
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maybe but the world will never know bet that 515hp gt500 didnt think so haha
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Old Aug 21, 2010 | 11:21 PM
  #154  
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Originally Posted by RooTBeeR
im bettign the dyno was set up wrong and ur power tq curves at a wrong rpm so your tq might be right, but ur hp will be low
ya it had to be..
like obviously im biased.. but idk.. 210 with GMPP header and exhaust? and u did 215 stock?
i say no way..
and the guy said my air/fuel ratio was perfect...
but idk

and andrew... i finally figured out what ur widget is lol!!
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Old Aug 21, 2010 | 11:21 PM
  #155  
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Then I wonder what the Cobra that got 625whp is really pushing out lol
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Old Aug 21, 2010 | 11:24 PM
  #156  
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Originally Posted by 09sscalicobalt
maybe but the world will never know bet that 515hp gt500 didnt think so haha
newp

though prepping the dyno for each individual car is where the mistakes are made.

there are key differences between the lsj and the lnf

ex: final drive

I recall a dyno event long before the lnf was around. There were three 2.8 pulley setups. All of which were drastically different power wise from one another according to the dyno.
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Old Aug 21, 2010 | 11:25 PM
  #157  
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Originally Posted by CLCHNGO
ya it had to be..
like obviously im biased.. but idk.. 210 with GMPP header and exhaust? and u did 215 stock?
i say no way..
and the guy said my air/fuel ratio was perfect...
but idk

and andrew... i finally figured out what ur widget is lol!!
Please don't tell me they used a sniffer @ the muffler.
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Old Aug 21, 2010 | 11:26 PM
  #158  
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lol.. i know huh? loud ass SC too...
im thinking one day ima get one of these
http://www.whipplesuperchargers.com/...sp?ProdID=1241
lol

Originally Posted by 100% METH
Please don't tell me they used a sniffer @ the muffler.
ya thats wut they used

Last edited by CLCHNGO; Aug 21, 2010 at 11:26 PM. Reason: Automerged Doublepost
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Old Aug 21, 2010 | 11:28 PM
  #159  
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Originally Posted by CLCHNGO

ya thats wut they used


that's bout as accurate as tuning AFR w/o a wideband.

Better off determining AFR via your front o2 chart in HPTuners
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Old Aug 21, 2010 | 11:30 PM
  #160  
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ya thats wut i figured.. bc there are so many different exhaust setups and cat setups.. that would make that inaccurate...
soo... i need to get a wideband lol
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Old Aug 21, 2010 | 11:32 PM
  #161  
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Originally Posted by CLCHNGO
ya thats wut i figured.. bc there are so many different exhaust setups and cat setups.. that would make that inaccurate...
soo... i need to get a wideband lol
bingo (Yes you should buy a wideband... how could you tune w/o one? Predetermined Air to fuel ratios based off a canned maf tune?)

especially considering california being a tree hugging state. The readings would be majorly skewed considering its after the cat, let alone being a mile away from the collector.
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Old Aug 21, 2010 | 11:35 PM
  #162  
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Originally Posted by 100% METH
Not much to improve upon other than a greater trq/hp number across the chart.

His bolt on stock pulley dyno was butter
That's the freakin point isn't it to improve?
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Old Aug 21, 2010 | 11:36 PM
  #163  
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but i mean.. is there any real way to do it on the dyno?
like pull up and say i want to dyno with A/F but i want it done via the.... idk wut?
lool
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Old Aug 21, 2010 | 11:40 PM
  #164  
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Originally Posted by HB SS/TC
That's the freakin point isn't it to improve?
Of course David, dont get ancy w/ me. I have no beef w/ you senor

We must not be on the same page of "which" improvement I'm talking bout on a dyno.

I could care less about some peak #

What I'm recalling is how shaun tuned Joey's entire powerband. To make a trq curve carry from 3k to nearly redline is a accomplishment and requires a good bit of knowledge on how to properly scale air to fuel through out the rpm range w/ a strong spark table to back it up.

So in my opinion, impressive numbers would be his 2.8 setup replicating the same prolonged power curve with x/y being greater. If it aint that, it's back to the drawing board imo.

Last edited by 100% METH; Aug 21, 2010 at 11:51 PM.
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Old Aug 21, 2010 | 11:42 PM
  #165  
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Originally Posted by CLCHNGO
but i mean.. is there any real way to do it on the dyno?
like pull up and say i want to dyno with A/F but i want it done via the.... idk wut?
lool
theres a good read about it under the paddock section of GM sportcompact .net.

I think Will aka ls1fbody posted it up
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Old Aug 21, 2010 | 11:48 PM
  #166  
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Originally Posted by CLCHNGO
ya thats wut i figured.. bc there are so many different exhaust setups and cat setups.. that would make that inaccurate...
soo... i need to get a wideband lol
only if you are going to tune it, otherwise a gms1 or 2 kit tune you will still be richer than stock and still not need a WB lol
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Old Aug 21, 2010 | 11:49 PM
  #167  
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btw david www.driftday.com $650 with a rental car haha
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Old Aug 21, 2010 | 11:50 PM
  #168  
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Originally Posted by RooTBeeR
only if you are going to tune it, otherwise a gms1 or 2 kit tune you will still be richer than stock and still not need a WB lol
i just wanna get a wideband and an interceptor bc it looks kool lol
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Old Aug 21, 2010 | 11:52 PM
  #169  
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Originally Posted by CLCHNGO
i just wanna get a wideband and an interceptor bc it looks kool lol
come on man

gaah
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Old Aug 21, 2010 | 11:54 PM
  #170  
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same reason i wanna get a CAI... bc i love the sound of a supercharger... not bc its gonna give me like 15 extra HP and a bit more throttle response
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Old Aug 21, 2010 | 11:58 PM
  #171  
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get the plx ^_^
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Old Aug 22, 2010 | 12:22 AM
  #172  
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haha brandons funny
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Old Aug 22, 2010 | 02:38 AM
  #173  
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Old Aug 22, 2010 | 02:59 AM
  #174  
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Originally Posted by CLCHNGO
same reason i wanna get a CAI... bc i love the sound of a supercharger... not bc its gonna give me like 15 extra HP and a bit more throttle response
pick up a 3" from zzp, ottp, or raw

I just saw a raw" selling for $75 on the board earlier.

Per a little testing, a modified stock intake will suffice up to the 2.9 pulley.

The the 2.8 begins to push it

anything smaller and you have a reverse effect in g/cyl past 5500 rpm.
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Old Aug 22, 2010 | 03:35 AM
  #175  
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Mine and Joey's dyno runs

Joey's http://www.youtube.com/watch?v=XHRdWSq0Bb8

mine http://www.youtube.com/watch?v=wROJ5wg278o
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