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Old 05-30-2010, 12:25 PM   #1
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Default Dropped a pulley size today

Well, it'* pushing 80* outside, so I figured it'* a good day to check my summer tune. Here'* a scan with my 3.0" pulley.
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My timing is low, but I set it there to be safe. I have no KR under WOT even with the higher temps.

So I dropped to a 2.9" pulley.
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Looks tiny.
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Compared to a stock pulley.
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And here is another scan with the 2.9" pulley.
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My boost went up by almost one pound. My timing went up a little as well. AFR is a little lean and still no KR under WOT. I had one small blip of KR at the shift point, nothing to worry about. When I get a chance I'll have to bump up the timing a bit. Right now I'm at 13*-17* and would like to get it at 15*-18* or even a little higher.
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Old 05-30-2010, 12:28 PM   #2
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wow a 2.9 with little to no KR! thats my dream lol.
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Old 05-30-2010, 12:41 PM   #3
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You go too much smaller on the pulley you'll have to modify the snout lol

Great job Dan, it amazes me that you don't have KR
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Old 05-30-2010, 01:10 PM   #4
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That snout has been turned down, so I should be good down to a 2.6" I think.
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Old 05-30-2010, 01:53 PM   #5
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Ahh ok then. It didn't look like it to me but I guess that means the job done on it was good for it to not be noticeable
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Old 05-30-2010, 03:10 PM   #6
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How are you getting 26.69 PSI? ? ? ? ? ? ?
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Old 05-30-2010, 03:44 PM   #7
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Subtract atmospheric pressure from that, My peak with the 2.9" was 27.42 at my elevation it'* 14.4 so that'* 13.02 pounds of boost. About as high as you want to get. I could push it to 14 psi, but I'm already running hot. I watched my IC coolant go out about 20* after getting on it a few times.
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Old 05-30-2010, 03:52 PM   #8
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Quote:
Originally Posted by Danthurs View Post
Subtract atmospheric pressure from that, My peak with the 2.9" was 27.42 at my elevation it'* 14.4 so that'* 13.02 pounds of boost. About as high as you want to get. I could push it to 14 psi, but I'm already running hot. I watched my IC coolant go out about 20* after getting on it a few times.
Duh, I forgot that I changed mine to BOOST, which was just map minus the 14.7psi
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Old 05-30-2010, 05:00 PM   #9
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I'll have to do that on mine, just never paid attention.
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Old 05-30-2010, 05:43 PM   #10
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Quote:
Originally Posted by Rockstar04 View Post
Duh, I forgot that I changed mine to BOOST, which was just map minus the 14.7psi

Post up your function string, mines not working right, I'm wondering if I'm using the wrong PID
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