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Help with heads !!

Old Sep 15, 2010 | 07:23 AM
  #21  
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Originally Posted by SOMbitch
The weird thing about that graph is torque and hp don't cross at 5250.......
Kinda looks like they do from here...then again, I'm in Michigan.
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Old Sep 15, 2010 | 07:39 AM
  #22  
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Yeah I see them cross at 5250. There are two runs on that sheet so make sure you are looking at the right TQ line and right HP line that go together, they both cross at 5250.

To the OP as everyone else has said I would be willing to bet assuming the install was done correctly that its a tuning issue. You haven't really said who tuned it yet and from the sounds of it you might need to do some research about tuning and how the PCM works so you know some of the basic acronyms like KR. It will help everybody out when trying to resolve issues. Good Luck.
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Old Sep 15, 2010 | 11:52 PM
  #23  
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Originally Posted by tording99Z28
Yeah I see them cross at 5250. There are two runs on that sheet so make sure you are looking at the right TQ line and right HP line that go together, they both cross at 5250.

To the OP as everyone else has said I would be willing to bet assuming the install was done correctly that its a tuning issue. You haven't really said who tuned it yet and from the sounds of it you might need to do some research about tuning and how the PCM works so you know some of the basic acronyms like KR. It will help everybody out when trying to resolve issues. Good Luck.
Precision autosports tuned the car and install the heads !?
But the car runs Ok? I see them cross at 5250 ?
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Old Sep 16, 2010 | 06:36 AM
  #24  
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Well if a shop did it and tuned the car then I would hope they did it right but you never know about some shops. There is a difference between the car running "ok" and a car running "correctly". The crossing at 5250 thing is talking about your dyno sheet. The way a dyno works is it actually measures the cars torque. The HP is merely a calculation the dyno software does to give you a HP number. Because of this the two lines (HP and TQ) will always cross at 5250 rpm on the dyno graph. One of the other posters didn't think your lines crossed at 5250 but they actually do.
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Old Oct 23, 2010 | 11:10 PM
  #25  
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It's fixed !!!

Help with heads !!-1-4-et-11.86045.jpg
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Old Oct 23, 2010 | 11:25 PM
  #26  
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Well, what was it?
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Old Oct 24, 2010 | 03:51 AM
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Great follow up post
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Old Oct 24, 2010 | 09:24 AM
  #28  
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The dyno runs do show solid gain across the power band, thats good!

I would be curious as well, or maybe it just runs faster?
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Old Oct 24, 2010 | 09:27 AM
  #29  
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what injectors are you running?you would benefit from a fast intake .
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Old Oct 24, 2010 | 11:03 AM
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"Ok, all better, nvm, nothing to see here, peace out y'all." lol
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Old Oct 24, 2010 | 10:26 PM
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Originally Posted by blsnelling
Well, what was it?
A new tuner , too much timing
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Old Oct 24, 2010 | 10:35 PM
  #32  
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Exclamation Dyno

Originally Posted by ctd
The dyno runs do show solid gain across the power band, thats good!

I would be curious as well, or maybe it just runs faster?
The new dyno numbers are better, by the new tuner .
Help with heads !!-dyno-414-hp-.jpg
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Old Oct 24, 2010 | 11:31 PM
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Originally Posted by erickprouty
The new dyno numbers are better, by the new tuner .
Attachment 260522
Yea thats a lot better than before. I thought it would have more torque but still not bad.
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Old Oct 25, 2010 | 03:36 PM
  #34  
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Just out of curiosity - where did you end up with timing?
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Old Oct 25, 2010 | 04:21 PM
  #35  
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I'm curious too about the timing, as I'm making less power than expected and perhaps I'm running too much timing, although I'm not getting any KR...
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Old Oct 28, 2010 | 12:05 AM
  #36  
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Default not sure

I'm not sure but ill find out
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