EVO8LTW

iTrader: (41)

The 20G-6 compressor wheel has been proven to surge in a stock Evo8 compressor housing at pump gas boost levels at WOT, but the 20G-5 (i.e., the FP White Rabbit) compressor wheel does not.

What does that indicate about the comparison between these two wheels?

EVOlutionary

iTrader: (38)

Sorry to bring back an old thread. What you said is not true. When I first got my 20G9-5 I noticed 5th gear surge the first time I drove it. If you are around 2500 rpms and go WOT it would surge for a second until the RPMs came up.

It does not seem to do that anymore, but I still get alot of part-throttle surging. Say you are accellerating to pass someone at part throttle - once it gets to a certain boost level (mid-teens) it starts surging/stuttering. Many hours have been spent trying to find a solution to this, to no avail. One person's comment - "It surges less than a GT35R - live with it . . . "

EVOlutionary

nutrulz

iTrader: (14)

FYI, a 20G-5 is not a WR.

Erik@MIL.SPEC

iTrader: (94)

The compressor cover is different, the comp wheel is similar, if not the same.

deadbeatrec

iTrader: (9)

i have had the 20g-9-5 for 7-8 months and never had serge once. i do however get creep with the high boost acuator.

EVOlutionary

iTrader: (38)

Interesting. Good news.

What BOV, boost controller and cams do you have? Thanks!