Boost control solenoid issue after install
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- Posts: 36
- Joined: Fri Feb 13, 2004 9:10 am
Boost control solenoid issue after install
I just went from a dual stage manual boost controller to the GM solenoid from hondata with my new s300 (p28). The issue is that while I has very minimal boost creep with rpm increase (2psi increase over 4k-redline)....I am seeing alot of boost creep with the new elec solenoid.
I am also noticing intermittant boost levels. Before I could run 15 psi and hold it until redline and only creep up to 16 or maybe 17psi. Now I have done runs where I will spool up and hit 12psi and it will creep up to 18psi. But it will never initially (peak torque after spool up) hit my max desired boost level.
I understand the issues that could cause creep but since I didn't have it before, I shouldn't have it now correct? I shortened all the vacuum lines down to the bare minimum. And the boost source is coming off the compressor housing.
If there are any tips on possible things I am doing wrong please let me know.
Has anyone else seen this issue?
Duane
Canada.
I am also noticing intermittant boost levels. Before I could run 15 psi and hold it until redline and only creep up to 16 or maybe 17psi. Now I have done runs where I will spool up and hit 12psi and it will creep up to 18psi. But it will never initially (peak torque after spool up) hit my max desired boost level.
I understand the issues that could cause creep but since I didn't have it before, I shouldn't have it now correct? I shortened all the vacuum lines down to the bare minimum. And the boost source is coming off the compressor housing.
If there are any tips on possible things I am doing wrong please let me know.
Has anyone else seen this issue?
Duane
Canada.
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- Posts: 36
- Joined: Fri Feb 13, 2004 9:10 am
I originally had it hooked up at the manifold but the problem was identical. I then rerouted the lines to shorten them, and ran the source from the comp housing. Same problem.
It seems a little better with a higher spring (ie: 10psi spring versus a 7psi spring), but still creeps more than it previously did. Have any other cusomers had this issue?
Also, to route my lines and make them as short as possible, I mounted the solenoid next to the distributor. I previously had it behind the headlight but had longer vacuum lines. Either way gives the same boost creep issue, but is the heat going to affect it that much at the dizzy?
d
It seems a little better with a higher spring (ie: 10psi spring versus a 7psi spring), but still creeps more than it previously did. Have any other cusomers had this issue?
Also, to route my lines and make them as short as possible, I mounted the solenoid next to the distributor. I previously had it behind the headlight but had longer vacuum lines. Either way gives the same boost creep issue, but is the heat going to affect it that much at the dizzy?
d
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- Posts: 44
- Joined: Tue Oct 15, 2002 7:19 am
- Location: texas
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I'm having the same problem. I went from a manifold source to the intercooler piping right after the intercooler. Mounted the GM solenoid right behind the headlight. I tuned it Sat night and had a little creep. Went to the track on Sunday and I was hitting boost cut like crazy. I tried fixed duty cycle, gear based etc. I finally disconnected the GM boost solenoid and went with a $5 manual boost controller using the same boost source (IC Piping) and the car built boost faster and held 18 psi all the way to redline (9800 rpm's)
Hondata, what do you recommend we do here??
Is the S300 ever going to have closed loop boost control with options where you can select the boost solenoid that we are using?
Hondata, what do you recommend we do here??
Is the S300 ever going to have closed loop boost control with options where you can select the boost solenoid that we are using?