Boost Creep In Upper Rpm

[bwebbie1]

i had the same problem installed an e boost and its getting better just sorting out the seetings, got it set at 10 and goes to 11.5.

[SimonR32]

the problem is caused by the cheap split dumps.... because where the gate pipe re-enters the zaust the hole is too small

easy solution!!!

pull the dump off and port out the hole where the wastegate re-enters the exhaust. on the ones i have seen the hole is approx 2 square cm's but if you get a grinding tool/file in there you should be able to make it almost 4 times the size

make sense?

[Pal]

Im having this problem with a high flow. have a split dump. cleaned out the waste gate hole into the main pipe but by the sounds of it it may still be to small for the high flow. boost creeping from 12 to 17 psi. so you gurus recon to get rid of it and put the stock dump back on?

[gotRICE?]

Im having this problem with a high flow. have a split dump. cleaned out the waste gate hole into the main pipe but by the sounds of it it may still be to small for the high flow. boost creeping from 12 to 17 psi. so you gurus recon to get rid of it and put the stock dump back on?

It'd be wise to try it. And i guess if it goes away then your problem is the dump pipe.

I just got my hands on an R32 Actuator. So im going to start with that, and pull out the stock boost solenoid. Always wanted to, so seeing as its easier ill start there. If it still creeps then ill go back to stock dump too.

I can see where Cerbera is coming from, but you cant make a 1inch pipe a 4 inch pipe with a file..

Are you talking about the turbo side or..? The JJR ones re enter the main exhaust just before the cat. Where the exhaust bends from the dive down the firewall.

Edited November 5, 2008 by gotRICE?

[Pal]

its only a short pipe. joins just before the flange to the front pipe.