Injen recirc mod

[Spooled]

What do you guys think about doing something like this. I want to cut the Injen recirc pipe off and make it shorter, and maybe larger around. The "larger around" part might be difficult since I don't know anyone that can weld aluminum, but I want to reduce the recirc restrict as much as possible. This is something I'm thinking about as an alternative to MAF relocation as a compressor surge fix. This would be in combination with a better BPV.

I just feel that the long, thin recirc tube on the Injen isn't the best idea. Ideally I'd like a 1.5" ID tube from the BPV to a 1.5" ID x 2" long nipple on the Injen.

Thoughts?

http://www.msprotege.com/members/Spooled/injen/recirc_mod.jpg

[sickspeed94]

with my 25mm BPV from TurboXS i have it kinda tweaked by cutting that pipe... hard to explain i'll take pictures but i've been pondering this too, because it's gotta be difficult to get all that dam air through those tiny holes. i think you'd also have to make the plastic nipple on the IC pipe bigger. but how?

[thejoker0409]

sub

[BOOSTR]

Hmm, will be interesting see the affect of this on the turkey. What kind of BPV are you going to run. What is so bad about ours? It supposedly doesn't start to leak until 16 psi, which is way above what most MSP's should be running. I've pondering a switch as well. But so far mine is holding what I have been throwing at it.

[INGREXCO]

i wonder how our cars would react to a stock 2gDSM/EVO bypass valve. they are plastic and leak around 14psi but once again thats higher than most msp's should be at.

i was actually going to try this however with my blow through and hks ssqv i have no need to

[jflo]

i don't think doing that will affect the turkey much...i got the turkey as soon as i removed the stock air box and replaced it with a cone filter. it might help the air flow, but i think a better bpv will be your better bet

[505zoom]

i don't think doing that will affect the turkey much...i got the turkey as soon as i removed the stock air box and replaced it with a cone filter. it might help the air flow, but i think a better bpv will be your better bet

I disagree... having a 1" nipple on both pipes along with a 1" in/out BPV will make a big difference. I'd even be willing to bet that it would make a slight difference to upgrade ONLY the injen nipple... leaving the BPV and charge pipe nipple stock.

Spooled - If you need some welding done, you could ship the pipe to me and I could have the guy that did mine hook you up. It might take a little while for turnaround though.

[Notorious]

It'll make a huge difference, now air can move more unrestricted back into the intake pipe. Remember compressor surge aka turkey comes from air not releasing from the charged pipes fast enough. Bigger release area, the faster the pipes depressurize.

[sickspeed94]

just a suggestion... go with the turboXS H25, that's what i have and it works well, i believe upgrading the size of the inlets and outlest f the intake system will absolutely get rid of the turkey. it makes perfect sense. only problem is the H25 is a 90* angle type so it'd be difficult to fit... i say relocate ethe MAFS and blow atmospheric. this will also help driveablity. just need the money for a FMIC now

[Spooled]

sickspeed94: I'd like to see the pics if you can get them. I will most-likely end up doing the MAF relocation with a BOV. From what I haev read it seems to be a great mod with little to no side effects.

DAVIV: I thought that the stock BPV leaked after around 8 psi (I coul be wrong, though). I was thinking about using either the TurboXS H25 or the Boost Sciences BPV. I guess whatever will flow enough and still be good for boosting under 10 psi. I plan on being around 9-10 psi after I get my FMIC in January.

505zoom: If I decide to go this route I will definitely let you know.

Does anyone know what the size of the recirc setup is on the Evo? They use a MAF and have to recirc just like us, but they don't have the surge problem like we do.

[BOOSTR]

I have never heard of it leaking at that low amount. But who knows. ION said that during testing it leaked around 10 psi. Another source said around 16 psi. I don't know what to think. Perhaps a testing of mine is in order. The Boost Sciences and Forge BPV's are direct replacments. The Turbo XS will work with a bigger tubing.

What are some signs of a leaking BPV?

[hoindawall]

by making the inlet and outlet bigger would this affect drivability (bogging between shifts)? if more air is coming into the intake pipe it would cause more turbulence (because of the 90 degree angle in which the air is circulated) which could cause more air pockets in the intake system. any thoughts?

[Spooled]

by making the inlet and outlet bigger would this affect drivability (bogging between shifts)? if more air is coming into the intake pipe it would cause more turbulence (because of the 90 degree angle in which the air is circulated) which could cause more air pockets in the intake system. any thoughts?

By the time that the air goes back throug the turbo, the turbulence and pressure differences are eliminated. It shouldn't affect driveability at all. If anything, it will increase it.

[thejoker0409]

Seriously enjoying this thread. No bullshit no flaming just different idea's being excepted.

[genius]

By the time that the air goes back throug the turbo, the turbulence and pressure differences are eliminated. It shouldn't affect driveability at all. If anything, it will increase it.

You are getting sleepy... sleepy... sleepy... you want to move the MAF!!! LMAO!!!!!!!!!!!!!!!!!!

[Spooled]

You are getting sleepy... sleepy... sleepy... you want to move the MAF!!! LMAO!!!!!!!!!!!!!!!!!!

Ha, I probably will. I just can't do it until I get my FMIC. Argh, I can't wait.