Problem boost its been pulled by 4000 rpm
Problem boost its been pulled by 4000 rpm
Hi I think I have a problem I recently installed the 272/272 set to -2-2 and am running the stage 1+ (390) map with Xede Flash and my car boosts to 1.58 bar (22.9 psi) till it hits 4000 rpm than drops to about 1.18 bar (17.1 psi) and than slowly goes up till like 1.28 bar (18.5 psi) it does not seem normal to me when I run the stage 1 map it held steady 22 psi now that I have cams gears and am running stage 1+ map its giving me problems any advise would be appreciated thanks .
Last edited by RREvo; Jul 2, 2005 at 12:40 AM.
Try to change your cam gears to -4, -1. Sounds like the boost pressure is dropping off too quickly, even for a standard map. Also, make sure your running the right map for whatever octane your using.
Originally Posted by gnulooks
Try to change your cam gears to -4, -1. Sounds like the boost pressure is dropping off too quickly, even for a standard map. Also, make sure your running the right map for whatever octane your using.
Originally Posted by Dustin@Vishnu
You may want to see how adjusting the boost table makes the car react.
Last edited by RREvo; Jul 2, 2005 at 12:58 AM.
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Ok so can I just run the boost table from the Stage1 till 4000 rpm in Stage1 table I have 97.3 to the 3000 rpm and then changes to 96.5 by 4000 rpm then by 4500 rpm is 97.3 again the reason I am asking because I was fine with Stage1 map please let me know ASAP I am going to the track tonight thanks .
so is there any reason that the Stage1+ map is lower on boost till the 4000 rpm because my base map for Stage1+ table is 92.9 till the 3000 rpm then 94.9 at 3500 rpm then 96.9 at 4000 rpm
There is also the possiblity that you installed the cam gears 1 tooth off. It would cause the car to run somewhat normal, but be extremely slow, and have strange boost issues. I agree with Andrew.
Ok now is a lil better the boost dos not fall off at 4000 rpm no more but now it falls at like 5500 rpm to like 1.28 bar ( 18.5 psi ) and then goes up to like 1.33 bar ( 19.3 psi ) any other suggestions or should I just adjust the boost table a little more at that rpm level ?
Originally Posted by Dustin@Vishnu
Please check your cam gears. I have a strange feeling that they may be off a tooth.


