Fireball

iTrader: (21)

Simple question

Should the BOV be between the turbo and I/C or between the I/C and throttle body on a high boost setup?

thelostartof

depends on who you talk to .. myself i like it between the IC and TB tho there is prob a 50/50 split of people who like it each way

obZidian

iTrader: (2)

interesting... never thought about it. It would seem logical that you would want to closer to the turbo as possible, however, since the cold pipes are pressurized.. would it really matter as much?

Fireball

iTrader: (21)

Reason I ask is that I think that would cause a surge of boost through the I/C as the turbo hasn't yet slowed down, and the TB is now a restriction.

black98ws6ta

iTrader: (77)

Yeah its reccomeneded before the IC on a high boost application to keep the pressure spikes away from the IC.

cablebandit

iTrader: (37)

i was thinking before i/c as well so you dont get the pressure spike to my elcheapo i/c and blow the end tanks

Speed

iTrader: (33)

Based on venting the inverse pressure wave caused by the throttle blade snapping shut, you want it as close to the throttle body as possible since it will contain the wave further from the turbo. In practice, I don't think it makes much difference.

Josh@KY-Turbo

iTrader: (120)

I have mine after. I mounted it about 8 inches back from the TB. The BOV is supposed to release the pressure on the pipes when the TB blade closes, I figured I would mount it on the TB side of the IC. I cant see why it wouldnt work eigther way.

89Formulaws6

iTrader: (52)

and the hot pipes arn;t? lol

its good to have it close to the t/b according to corky bell

i never had a problem and plan on running 20-30lbs of boost this year in my other car

just don't buy a cheap ebay i/c and a greddy bov knock off

Ryan K

iTrader: (11)

I agree, it should be close to the thing creating the pressure wave, and thats the throttle blade...

Roadie

mine is close to the TB as well... I wasn't worried about blowing the tanks off ICs, but I had heard about containing the pressure waves by the TB as said above.

Also, when a BOV after the IC is open, the turbo (not creating heat because it's not pressurizing air) will pump ambient air through the IC and help cool them off when not in boost.

lunati397

pressure is resistance to flow so the highest pressure point would be before the TB because that is the point where the flow is getting blocked off creating pressure at that point IMO i would have it closer to the TB that is where the spike will be seen first

I am a pneudralics specialist and that is no **** straight out of the book just changed it to a turbo setup as opposed to a shutoff valve

cablebandit

iTrader: (37)

cool info!!

52172

iTrader: (2)

I have heard closer to the turbo to protect the turbo. Closer to TB to help keep boost.
Hi-Flo chose closer to turbo for protection, but you know Hi-Flo?

obZidian

iTrader: (2)

Ok, i have seem both applications... however, i remember seeing a subi' with the BOV mounted on the I/C. It was mounted to the top just off the outlet to TB cold pipe.

IM not interested in doing this but would this help out/hurt in any way?

Smearin

Closer to the turbo.. so that when all that pressure comes back towards the turbo it'll release all that pressure before you get too big of a spike and back flow through the turbo

HUNTER02SS

iTrader: (24)

But if it is by the TB blade when you get off the gas there will not be any pressure back due to it being blead off closer to the throttle body.If you put it by the turbo then the pressure has to come back through the intercooler.

89Formulaws6

iTrader: (52)

if you have a good bov you wouldn't run into this problem

lunati397

also very true

TwnTrboCE

iTrader: (43)

I usually like to put mine where it fits or looks best.

We have ran 30psi with them in both locations. Doesn't seem to matter.