BT intake options

[Fobio]

I've been jacking dustin's thread...sorry bro.

So now with a BT on my shelf, I'm looking into options...top mount turbo relocation sounds cool and all, but the thought of flipping the turbo around and likely needing new lines, custom dp and intake/inlet is a bit daunting, but I'm still weighing my options...

I've been looking around at different intakes/inlet combo...they are a couple I'm considering, namely from CP-e and ATP...

My first question is:

Looking at ATP:



and here's CP-e's, which comes with a filter to vent the VC:



It looks like neither one of this is plumbed for the PCV vac line to return to it like say, my Cobb SRI does:



I'm also wondering about velocity stack and straightener as well...the CP-e one has it "built-in" but I can't picture it, and I also like to have an extra filter around to prevent downtime...if I go with the ATP kit or DIY, should I also vent the VC? I'd prefer to plumb it back, for the sake of easier tuning?

[Lex]

Venting the VC versus plumbing won't really change your tuning. It's meant to pull vacuum from your VC (relieve crankcase pressure) under boost and it is an emissions requirement why it is plumbed back into the intake versus just vented.

[Fobio]

Originally Posted by Lex Venting the VC versus plumbing won't really change your tuning. It's meant to pull vacuum from your VC (relieve crankcase pressure) under boost and it is an emissions requirement why it is plumbed back into the intake versus just vented.

yeah, I always thought venting the VC is illegal...those enviro tickets are like $600....

[Lex]

What turbo did you get?

[Fobio]

Originally Posted by Lex What turbo did you get?

the ATP 3071R kit...

[Lex]

Looking forward to how this one turns out

[Lex]

Why not just replace the inlet and keep the SRI MAF housing and filter?

Doesn't CPE sell a BT inlet? You can always make your own with some silicone couplers



EDIT: DOH, I realize you want a top mounted setup. Nevermind then ... just buy a MAF housing and make your own intake using silicone couplers.

[Fobio]

Originally Posted by Lex Why not just replace the inlet and keep the SRI MAF housing and filter? Doesn't CPE sell a BT inlet? You can always make your own with some silicone couplers EDIT: DOH, I realize you want a top mounted setup. Nevermind then ... just buy a MAF housing and make your own intake using silicone couplers.

I'm considering the top mount option, and have looked at the CP-e inlet, along with the ATP inlet...both options are good if I stick with stock location, which is where I'm leaning now...

but yeah, if I go top mount, I'll have to buy some parts and have them welded...

also, the MAF housing for the Cobb SRI is not true 3" ID...it's been measured to be 2.6x - 2.75"?

[Fobio]

thanks to spnkr21:

Top mount turbo setups

Originally Posted by spnkr21 Don't worry about the intake-valve cover line. If you run a huge intake then there is no vacuum so that line is pointless after you rip off stock intake. Just vent it.

[subparpunk03]

FYI Socks had his valve cover vented and the car ran like crap until he plumbed it back. I forget exactly what the reasoning is there, something like at idle or low loads it becomes a vacuum leak and pulls air in through the crankcase or something, as opposed to pulling in air that has already been read from the MAF.

[Dano]

I am currently running the CPE BT inlet and an Injen CAI cut off in SRI mode. G/s went up by 40 w the GT28 upgrade. I may look into a 3" MAF as well. The Injen is 2.75 IIRC

Does it really make that much difference??


Sent from my iPhone using Tapatalk

[Fobio]

Originally Posted by Dano2010 I am currently running the CPE BT inlet and an Injen CAI cut off in SRI mode. G/s went up by 40 w the GT28 upgrade. I may look into a 3" MAF as well. The Injen is 2.75 IIRC Does it really make that much difference?? Sent from my iPhone using Tapatalk

I'd say that it'd make enough of dif that if you don't do it now, you'll end up doing it down the road anyway.

[BoostedBlack6]

If you can find a subaru 3" maf housing those will work as well. FYI

[Fobio]

Looks like I'm the only one active in both posts...lol...

Originally Posted by Fobio Is this the 3" Subie DENSO MAF housing from ATP that we can use to build our intake? 3" MAF Housing - Billet Aluminum-for DENSO Element : atpturbo.com

[-cj-]

The top mount is tempting, don't get me wrong, but I wish I could have just slapped on an ATP turbo and just gotten things running. Messing with the lines and ensuring everything matches up is a PITA. And in my case, I'm using the stock location, just not using a bolt on kit........ I think it's more trouble then it's worth if you don't plan on pulling your turbo after it's setup.

[SSinstaller]

All you really need is a long 45 degree coupler a short length of 3.5" or 4" piping and your MAF housing. Any decent welder should be able to weld on a small fitting so you can reconnect the valve cover port.

[Fobio]

Originally Posted by SSinstaller All you really need is a long 45 degree coupler a short length of 3.5" or 4" piping and your MAF housing. Any decent welder should be able to weld on a small fitting so you can reconnect the valve cover port.

any need for an air straightener/velocity stack when going big?

[SSinstaller]

Originally Posted by Fobio any need for an air straightener/velocity stack when going big?

As long as there are no bends immediately before or after the MAF housing you shouldn't have any issues..

[Jeff23spl]

oups just seen it is a 3 years old thread

[madvillain]

I will post pictures of my last 3" intake I made, which will soon be for sale. I will also post what I'm using for my new one once I get everything.

[bcmurphy87]

Im following this because im looking to replace CAI. i also have the 3071 but im not going top mounted

[spnkr21]

Originally Posted by subparpunk03 FYI Socks had his valve cover vented and the car ran like crap until he plumbed it back. I forget exactly what the reasoning is there, something like at idle or low loads it becomes a vacuum leak and pulls air in through the crankcase or something, as opposed to pulling in air that has already been read from the MAF.

You're right, you are pulling in unmetered air through the Pcv but it's not enough to throw your fuel trims off too much. My car doesn't act funny, couple after-fires now and then, but overall it's good.

You certainly can hook it up, but it isn't needed so don't sweat it.

[Code Monkey]

LOL