How To Tune Your Greddy Profec B spec II
Jul 20, 2005, 11:05 AM
#46
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I'm having a problem too guys.... In 4th and 5th gear, boost stay at where i want it too.. It doesn't fall.. But in 3rd gear it boosts to 20 then falls slowly to 10-15 lbs... Why is this... And at WOT....
Sep 15, 2005, 02:18 AM
#49
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Originally Posted by PVD04
Correct me if I'm wrong, but my understanding was that the limiter value was the amount that your set value would be lowered by, so rather than setting it to your set value minus 4%, it should just be set to 4%. From the instructions:
What about this guys??? Should Limiter be [SET-4%] or [4%]? Which one is it really?
Last edited by vr4_211; Sep 15, 2005 at 03:17 AM.
Sep 15, 2005, 03:14 AM
#51
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Originally Posted by arpad
it's just 4%, but either would work since limiter-4% would just lower the boost more significantly once you hit the warning.
Thanks!
Last edited by vr4_211; Sep 15, 2005 at 03:20 AM.
Apr 19, 2006, 03:20 AM
#53
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Originally Posted by vr4_211
You mean "...either would work since set-4% would..."?
Thanks!
Thanks!
wow never got notification of your post... stoopid intarnet
May 12, 2006, 09:21 AM
#54
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Hey guys I read the write up last night when installing my profec B but didnt read the whole thread. I found the unit to be working good but when I first would go WOT the boost would jump to 15 psi and sit there till I got way high in the RPM range (5500+) and then would go on to 19 psi ...
Well I knew it wasnt 100% as stock the car would jump up to 19psi and then just taper off under WOT ... so today I read the rest of the thread. Like many of you I had the little plastic cap on the other unused port. I pulled it off and things seem to be working like a charm now! I had to readjust my settings as it was now hitting way over 22psi ...
Currently my settings are:
Set 62%
Gain 7%
Set Gain 10%
Warning 21psi
Limiter 4%
Can everyone else post their settings so we can compare ...? Also is it bad to have the Set Gain at 10% ? It seems that everyone says to have it close the the desired max boost ... should I re adjust this?
Well I knew it wasnt 100% as stock the car would jump up to 19psi and then just taper off under WOT ... so today I read the rest of the thread. Like many of you I had the little plastic cap on the other unused port. I pulled it off and things seem to be working like a charm now! I had to readjust my settings as it was now hitting way over 22psi ...
Currently my settings are:
Set 62%
Gain 7%
Set Gain 10%
Warning 21psi
Limiter 4%
Can everyone else post their settings so we can compare ...? Also is it bad to have the Set Gain at 10% ? It seems that everyone says to have it close the the desired max boost ... should I re adjust this?
May 17, 2006, 07:41 PM
#55
I lightly tuned an 06 Evo 9 RS today that is running the B-Spec 2 that I installed for him. I kept it really conservative untill we can get his car tuned. The only mods so far is an Injen intake system and of course the boost controller.
Gain: 5%
Set Gain: 1.00 kPa
Set: 50%
Warning: 1.5 kPa
Limiter: 4%
These settings netted a peak of 20psi down low and holding 18psi up top.
Gain: 5%
Set Gain: 1.00 kPa
Set: 50%
Warning: 1.5 kPa
Limiter: 4%
These settings netted a peak of 20psi down low and holding 18psi up top.
Jun 8, 2006, 04:22 PM
#56
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problem
guys, i got another problem.....my LO is set properly at 77%, 0.10 x 100 Kpa, with a 5% and it boosts to like 20lbs. without any taper.......but in HIGH mode, i hate like 80%, 0.10 x 100 Kpa, with a 5% gain, and it only boost to 10lbs.....wats wrong?...and does any1 have setting for keeping it at 21lbs. on LO mode, and 23lbs. on HIGH mode.....thanks
