Boost not smooth?
#1
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Boost not smooth?
Hi guys,
Not really sure what the best way of describing this is. But here goes!
2001 bugeye wrx
When accelerating through the boost range it's like it's purging?
It will get to about 5000rpm, then pause for a split second, then up to 5500, then pause again, etc etc, all the way through the boost.
It's got a forge dump valve
Pro drive Ecu - apparently, but I'm suspicious it hasn't.
Pro drive inter cooler - again, I'm suspicious that it hasn't.
Full decated turbo back exhaust.
I'm about to go fit a standard dump valve to replace the forge one.
And have a standard exhaust to pick up in the week.
Any ideas?
Cheers
Not really sure what the best way of describing this is. But here goes!
2001 bugeye wrx
When accelerating through the boost range it's like it's purging?
It will get to about 5000rpm, then pause for a split second, then up to 5500, then pause again, etc etc, all the way through the boost.
It's got a forge dump valve
Pro drive Ecu - apparently, but I'm suspicious it hasn't.
Pro drive inter cooler - again, I'm suspicious that it hasn't.
Full decated turbo back exhaust.
I'm about to go fit a standard dump valve to replace the forge one.
And have a standard exhaust to pick up in the week.
Any ideas?
Cheers
#3
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Okay. That sounds something I can rectify. I'll try not to push it too hard whilst I've still got the exhaust on.
Thanks.
How can I tell if I have a prodrive inter cooler or Ecu?
I also have a wagon, and they look identical?
Thanks.
How can I tell if I have a prodrive inter cooler or Ecu?
I also have a wagon, and they look identical?
#7
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Nope, hasn't cured it.
hopefully the exhaust may help?
i was in 3rd gear about 4500rpm and accelerated out a bend and heard a bang. i assume misfire.
could this point towards Spark plugs?
hopefully the exhaust may help?
i was in 3rd gear about 4500rpm and accelerated out a bend and heard a bang. i assume misfire.
could this point towards Spark plugs?
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#8
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Get the car re-mapped and drive it off boost until then !
even if the ecu does indeed have the ppp map on it then it still wont cover the full decat you have fitted and you are at risk of damaging your car , like Fat Thomas has already told you , the decat will be causing overboost and the car is trying to protect itself.
Your issues is nothing to do with the bov , although a standard re circ will make the car drive a lot smoother as all the air that the maf has measured and the ecu calculated for is not being vented to atmosphere when you lift off.
Spark plugs although wouldn't do any harm in checking, again is not your problem.
Get the car checked by a reputable mapper, there's lots out there and many that travel to you.
even if the ecu does indeed have the ppp map on it then it still wont cover the full decat you have fitted and you are at risk of damaging your car , like Fat Thomas has already told you , the decat will be causing overboost and the car is trying to protect itself.
Your issues is nothing to do with the bov , although a standard re circ will make the car drive a lot smoother as all the air that the maf has measured and the ecu calculated for is not being vented to atmosphere when you lift off.
Spark plugs although wouldn't do any harm in checking, again is not your problem.
Get the car checked by a reputable mapper, there's lots out there and many that travel to you.
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