Not boosting correctly?? Help please!!
12-26-02, 08:56 PM
#1
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Not boosting correctly?? Help please!!
quick insight, I have the XS T04E and all the mods for single turbo and only had it for 6 months, it was only boosting at 6-7 psi, which I thought it was boosting off the wg spring which was just fine. Just have to wait for a BC. Added a profec B. And still boosting not over 7 psi
So thought it was the wg. Had that checked out and it's working. Had my intake system pressurized to make sure of no leaks anywhere. Found a leak here and there and it's fixed. But still not boosting pass 7psi.
Even had the wg manually bolted closed with a longer bolt. Mechanic told me that, this will at least boost it to a point where my motor will blow. But no luck. Still not boosting.
is this a sign of a bad turbo? any help out there from you single turbo guru, will be highly appreciated
So thought it was the wg. Had that checked out and it's working. Had my intake system pressurized to make sure of no leaks anywhere. Found a leak here and there and it's fixed. But still not boosting pass 7psi.
Even had the wg manually bolted closed with a longer bolt. Mechanic told me that, this will at least boost it to a point where my motor will blow. But no luck. Still not boosting.
is this a sign of a bad turbo? any help out there from you single turbo guru, will be highly appreciated
12-26-02, 10:12 PM
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Remove the filter and watch the turbo at idle. Its should spin freely. Also, are you sure you have no boost leaks? With the wastegate closed the turbo should spin vrery fast.
12-27-02, 04:27 AM
#3
Ghost Ride the Whip
check to make sure all the gaskets are tight and in correctly. Afterwards, check to see if all the intercooler hoses are connected and that there are no vacuum leaks either.
12-27-02, 02:56 PM
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POS car is stressing me out, I just hope it's not the turbo. If it's the IC then this is a good excuse to get a new FMIC. I'll keep my fingers cross!!!
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12-27-02, 06:17 PM
#10
check the settings on the back of the profec
there are 2 settings, one for internal wg's and one for external.. i dont know what difference it would make but
should have up down up down
or the reverse order
play around.
also
make sure you have a boost source going to the side of the wastegate. this will open the wastegate when the boost pressure equals the spring pressure. pressurize that a little and make sure there are no leaks. under the right amount of pressure the wastegate should open.
your boost controller solenoid should be going to the top of the wastegate, this will keep the wastegate shut.
make sure that it doesnt leak and that you can pressurize it up to at least like 30psi
if this is all setup correctly, you may have a defective solenoid or your boost controller isnt hooked up properly
hope this helps
p.s. i run xs to4s with the hks racing wastegate and a profec-b =]
there are 2 settings, one for internal wg's and one for external.. i dont know what difference it would make but
should have up down up down
or the reverse order
play around.
also
make sure you have a boost source going to the side of the wastegate. this will open the wastegate when the boost pressure equals the spring pressure. pressurize that a little and make sure there are no leaks. under the right amount of pressure the wastegate should open.
your boost controller solenoid should be going to the top of the wastegate, this will keep the wastegate shut.
make sure that it doesnt leak and that you can pressurize it up to at least like 30psi
if this is all setup correctly, you may have a defective solenoid or your boost controller isnt hooked up properly
hope this helps
p.s. i run xs to4s with the hks racing wastegate and a profec-b =]
Last edited by nyt; 12-27-02 at 06:19 PM.
12-30-02, 09:33 PM
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Ok, Ivan found out what was the cause of my strange boost problem. It was the sorry *** american made resonated midpipe I had install from the nearest muffler shop, that was willing to take off my cat and make me a mp while I wait.
Somehow from all the heat of the rotory engine, the internal of the pos mp has melted and collapse together, restricting exhaust flow. Which was preventing my turbo to spool up all the way.
Just by looking underneath the car, no one could of ever thought that the mp was clogged.
I give props to Ivan, who took most of the time out of his vacation, to work on my car.
Somehow from all the heat of the rotory engine, the internal of the pos mp has melted and collapse together, restricting exhaust flow. Which was preventing my turbo to spool up all the way.
Just by looking underneath the car, no one could of ever thought that the mp was clogged.
I give props to Ivan, who took most of the time out of his vacation, to work on my car.
12-31-02, 03:08 AM
#12
Ghost Ride the Whip
Just by looking underneath the car, no one could of ever thought that the mp was clogged
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