gtpso2 turbo - Page 2 - Perth-WRX.com

vyper · #11 30-08-2007, 04:17 PM

Quote:

Originally Posted by uglycong

brining up an old thread.

ill probably be going with the same turbo. would it be feasible to upgrade to a FMIC to get a bit more top end and is it much of an increase over the TMIC ? thinking either FMIC or sticking with my STI TMIC with some water spray

TMIC are much more restrictive so forget big numbers. Depends what you want. Youll be nice and responsive with TMIC, go FMIC and you will be getting bigger numbers on the dyno and less down low. Hardly worth the effort imo - If you dont plan to mod further, stay STi TMIC.

Hi_VoLtAgE · #12 30-08-2007, 05:00 PM

Quote:

Originally Posted by *Stockers*

TMIC ftw.

Although I personally believe that the front mounts looks the shiz.

for ultimate shiz factor have a top mount with a front mount unconnected.

207 de · #13 31-08-2007, 10:12 AM

dont forget to take into account how much actual "air" you are trying to push through a physically smaller core....

there is a reason why cars making more power, with bigger cfm turbo's use bigger cores..

Intra · #14 31-08-2007, 10:35 AM

Quote:

Originally Posted by RichX

Indeed, that Stock Y-Pipe is shite. Even look at getting one of the Process West TMIC's, as they have a much improved Y-Pipe design which allows even flow of air into the TMIC.

Most Y-Pipes still don't allow for even flow.

Is that proven fact ?

Do you have a link to the flow bench testing data and specs to the machine ?

Is Process West releasing their testing method ?

Seems to me that once upon a time 18 pounds of boost was the absolute LIMIT that anyone would want to push through a TD04 or VF series turbo. Fast forward today and its not uncommon to push 20 pounds, hell even 1.9 bar according to Kato's avatar.

Alot of people seem to "dispense" alot of second hand info without any real justification. I'm not having a dig at ya Richard, i'm just wondering where you got that set of data from?

Clint · #15 31-08-2007, 11:21 AM

I've tested it but you won't believe my advice.

The Stock WRX Y pipe is designed for stock application only and does the job ok. Start pushing more air into it and you will find it's limitations of flow and the arey prone to splitting or cracking.

STI Ypipe is designed with group N in mind. Free flowing and strong. Most Y pipes are just a copy of this using their own materials. Changing from the stock wrx one to sti will also help with response once you start pushing more flow then stock.