More boost please (or a least help me find where its gone)
16-06-2010, 09:10 PM
#41
Hi Mark
yeah was 1 of the first things I tried just used a bit of pipe capped off 1 end aput a tyre valve in it put it in place of the air filter but it up to 15ish psi and all was fine
starting to think its greedy profec b boost controler? as when it was set up by talk of the devil they filled a restrictor in 1 of the vacuum hoses to make it hold more boost
16-06-2010, 09:14 PM
#42
PassionFord Post Whore!!
Hi Mark
yeah was 1 of the first things I tried just used a bit of pipe capped off 1 end aput a tyre valve in it put it in place of the air filter but it up to 15ish psi and all was fine
starting to think its greedy profec b boost controler? as when it was set up by talk of the devil they filled a restrictor in 1 of the vacuum hoses to make it hold more boost
yeah was 1 of the first things I tried just used a bit of pipe capped off 1 end aput a tyre valve in it put it in place of the air filter but it up to 15ish psi and all was fine
starting to think its greedy profec b boost controler? as when it was set up by talk of the devil they filled a restrictor in 1 of the vacuum hoses to make it hold more boost
Have you removed the restrictor.
Mark
17-06-2010, 10:14 AM
#45
PassionFord Post Whore!!
To rule out the boost controller I would disconect and block the pipe from the compressor housing, run the actuator with half a hole preload but no boost, this will show if there a problem in the controller/pipework.
Pressure test the inlet system properly, 15psi is no where near enough. I had a leak on a chargecooler pipe that didn't show till 21psi, test it to 2-3psi more than you run. If you want to run 28 then test to 30psi, but no more so you don't cause a leak.
100% sure the pennys ok? As steve said I put White touch up paint on mine then connected it back up to find it was only sealing on 20%
check housing for cracks, manifold for leaks...
Make sure air filters clean.
1 of my mates has his imprezza on the rollers last week, it made an extra 40bhp by just opening the bonnet, his air filter wasn't getting enough air/cold air, if filters blocked it will b suffocating it.
If I think of any more I'll let you know.
I did all these tests and failed every1 at some stage lol.
Pressure test the inlet system properly, 15psi is no where near enough. I had a leak on a chargecooler pipe that didn't show till 21psi, test it to 2-3psi more than you run. If you want to run 28 then test to 30psi, but no more so you don't cause a leak.
100% sure the pennys ok? As steve said I put White touch up paint on mine then connected it back up to find it was only sealing on 20%
check housing for cracks, manifold for leaks...
Make sure air filters clean.
1 of my mates has his imprezza on the rollers last week, it made an extra 40bhp by just opening the bonnet, his air filter wasn't getting enough air/cold air, if filters blocked it will b suffocating it.
If I think of any more I'll let you know.
I did all these tests and failed every1 at some stage lol.
17-06-2010, 09:00 PM
#46
Cheers for all the help guys its been much appreciated 
Right I have fitted the amal valve and now have 30psi so just need to fine another 2psi and I will be very happy again
Stu21t thanks for taking the time to reply I repressurised it to 35 psi and found a very small leak on the cooler hose clamps so it was just a case of nipping the clamps up a bit more
Right I have fitted the amal valve and now have 30psi so just need to fine another 2psi and I will be very happy again
Stu21t thanks for taking the time to reply I repressurised it to 35 psi and found a very small leak on the cooler hose clamps so it was just a case of nipping the clamps up a bit more
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