Forge BPV question? Green Blue or Yellow Spring? No red?

[jaydubz]

Anyone have a link to the BPV that is supposed to be used on a stock ms3?

 

[palerider]

Allright all you forge bpv experts. Im getting what i thought was surge(maybe now its flutter?) on my new turbo running 18psi. I had my old setup with blue spring and one shim in place.

I was utterly confused how a gt3071 would get flutter/surge at 18psi but the stock turbo would get the ping...

anyway.. i pulled out the shim.

Now i get flutter/surge on partial boost and when i go wot and release all at once. no ping whatsoever, or if it is i cant hear it with the flutter being so loud.

thoughts?

Can you mimic compressor surge with a spring that isnt stiff enough? Also... whats up with the forge guidelines for spring stiffness and psi? they claim that the red is for 30+ psi....wth?

 

[Jesse MS3GT]

Come on patty, where you at?!

 

[fasteract]

Patty has gone to England to work the assembly line so her Distributors here in the States will actually have a Forge part to sell !! (-:

 

[Hot Shot]

Just got mine in with the blue spring (no shims) and WOW! The boost response is night and day. Feels like there is no lag. I'm glad I got this!

Ditto. I installed mine last night and took her out. 1-2 gear are much better. I was not expecting the ping sound it lets out when shifting fast under boost. Sounds great though. I need to go out and log my boost levels to see what I'm at now....

 

[jam_asian85]

Patty has gone to England to work the assembly line so her Distributors here in the States will actually have a Forge part to sell !! (-:

I think "Patty" is a guy ... Patty = Patrick

 

[controlo]

anyone know who has a black bpv in stock?

 

[GhostMercury]

prolly ken

 

[controlo]

prolly ken

ken only has polished.

i want a black one.

once you go black, you never go back. haha.

 

[wisniaPl]

check street unit

 

[GhostMercury]

i hope ken has black ones when i order the MS CAI when it comes out

 

[controlo]

yeah, i just want black because my injen CAI is black.

 

[gr3y]

Noob question.. What do the shims do?

 

[Sierra117]

Quick question to the Forge gurus:

Running blue spring with two shims, still falling off boost up top (Spiking 16 pounds, holding 14 for the most part, falling off around 5000 down to 12 pounds.)

Should I toss in the third shim, or does my problem lay elsewhere?

 

[wisniaPl]

Quick question to the Forge gurus:

Running blue spring with two shims, still falling off boost up top (Spiking 16 pounds, holding 14 for the most part, falling off around 5000 down to 12 pounds.)

Should I toss in the third shim, or does my problem lay elsewhere?

shift st 5k

 

[Sierra117]

shift st 5k

Why would I want to do that? I have the CDFP, I'm gonna make full use of that extra 1000+ rpm!

 

[wisniaPl]

Why would I want to do that? I have the CDFP, I'm gonna make full use of that extra 1000+ rpm!

jk I have no idea why...ordered mine bpv yesterday

 

[mckraut]

http://www.forgemotorsport.com/content.asp?inc=product&cat=0007&product=FMDVTUN
from the manufacture.

According to this, shouldn't a stock or close-to stock MS3 be running a yellow spring?

 

[tru-boost]

(deadhorse
c'mon guys......SEARCH
stock up to about 19psi = blue spring
over19psi = red
yellow = you are a wuss !

 

[wisniaPl]

so instaled my forge today and im surging with blue spring
im surging on 3rd when im under 3500 rpms
4th 5th and 6th gear when im under 4000rpms and during hard acceleration even when im on like 5k on those gear 456
should i change my spring to yellow with 2 shims or wait couple days for sping to break in???????