Midpipe Boost Creep
01-15-2003, 10:06 AM
#1
Senior Member
Thread Starter
Join Date: Oct 2002
Location: Merrick NY / St.John's Uni Jamacia, NY
Posts: 1,073
hey i got no air pump w/ dp , stock main cat and stock catback. now with the life of my main cat slowly fading away i have been looking at possabilities but since even high flows will clog up im left with either getting a new airpump or a midpipe and id rather go midpipe. but that means im gonna get boost creep which scares the hell out of me. if i picked up a profec b would that stop it or do i have to look at the waste gate?
and with the waste gate, do i have to buy an external (like those honey comb looking things) or do i have to port out the one i have?
oh yea and how much does it cost to port the wastegate..
and with the waste gate, do i have to buy an external (like those honey comb looking things) or do i have to port out the one i have?
oh yea and how much does it cost to port the wastegate..
01-15-2003, 12:36 PM
#5
Super Moderator
Join Date: Jan 2002
Location: New Jersey
Posts: 3,928
pfc controlled my full exhaust without issue...
with stock wastegate...
creep was intermitent...highest value was an additional 1psi..
of which i didnt mind...
you just need to tune your ecu to compensate...
with stock wastegate...
creep was intermitent...highest value was an additional 1psi..
of which i didnt mind...
you just need to tune your ecu to compensate...
02-08-2003, 08:21 AM
#6
Senior Member
Join Date: May 2002
Location: Okinawa, Japan
Posts: 4,928
I had a hell of a time controlling boost with my sequential and the PFC. I've heard that the profec B does a good job of controlling boost...but the only real way to control boost creep is to port the wastegate.
02-09-2003, 10:08 AM
#7
Senior Member
Join Date: Sep 2002
Location: jackson, ms
Posts: 1,305
yeah, never underestimate the power of boost creep. i trashed my engine like that. i was at the drag strip last november and saw spikes as high as 20psi at some points......UN KEY! i learned quickly that boost control was very important.. however, i already knew that, and ignored it on purpose...
02-09-2003, 11:37 AM
#8
Senior Member
Join Date: Jun 2002
Location: La Plata, Maryland
Posts: 9,725
Port the wastegate out around the edge 1/16"
You can do the work yourself. It's not hard. You just need to pull off the turbos and disassemble them.
Once you get that done you can get the tools from either harbor frieght or ebay.
All you need is a carbide burr and a pnuematic die grinder and access to an air compressor of coarse.
I would try amp's suggestion first though since it only requires makeing a few adjustments on a key pad.
You can do the work yourself. It's not hard. You just need to pull off the turbos and disassemble them.
Once you get that done you can get the tools from either harbor frieght or ebay.
All you need is a carbide burr and a pnuematic die grinder and access to an air compressor of coarse.
I would try amp's suggestion first though since it only requires makeing a few adjustments on a key pad.
