Do i need a bov

[Ez8]

My ca18det is bone stock the only upgrades fmic, 3inch full exhaust testpipe will i need a bov

[tommey]

No

[r34 gtr]

No

Terrible answer.

Yes, you need one because the CA does not come with one stock. Without one you will get large amounts of compressor surge when you lift off the gas, as compressed air will have nowhere to go but back into the compressor wheel, slowing it down abruptly. This can lead to premature turbo failure.

You don't have to spend a lot of money either. A 1g DSM recirculation valve works great, or you can find a good used one (w/ hot pope section) on eBay for a relatively low price.

[rico05]

Under 7psi or so and you are "ok". But I agree with Tim: it is a wise investment.

[superJoy]

Couldn't hurt, but don't spend a lot of money on one. Spending $200 for some stupid JDM tight one is retarded, I totally regret that decision... get one used or soemthing

[rico05]

I agree with David. I bought a used SSQV for like $130 shipped and it is just fine.

[m_wolfenden]

now i can start a debate.....hot pipe or cold pipe.....

[DroptopDrifting]

i've been debating hot pipe or cold for a very long time.....

[Ez8]

thx 4 all the advice but can any bov be setup for recirculation

[rico05]

Nearly. Some are designed for it from the get go (ARC valves) and some not (HKS). But yes, most can be easily recurulated.

The BOV will react faster on the cold pipe, but most kits are for the hot. On a street car, at moderate boost, the benefit from the extra welding is incremental.

[Buddyworm]

Compressor surge sounds awesome. I say go without. It's a worthless T25 and it'll talk a little bit of chuffing fine.

[superJoy]

now i can start a debate.....hot pipe or cold pipe.....

I prefer hot pipe on typical street cars, because it's way easier to recirculate the BOV when it's close. If I had a race car or something with a standalone it'd probably be on the cold side, but I don't. I have a little dinky toy car S13 thing with Fisher Price My First Engine Management. So I have it on the hot side, and recirculate

Oh ya, I've been wondering. Does anyone have experience with the knock-off BOVs? They're super cheap on eBay. I was wondering how reliable they are, just for curiosity's sake. Seems like they might leak a lot, lol.

[Ez8]

is there any way i can put a bov valve on my ca18det with recirculation and without run rich

[mbmbmb23]

is there any way i can put a bov valve on my ca18det with recirculation and without run rich

Yes.....with recirculation it prevents it from running as rich as if you vented. Recirculate the air leaving the BOV to a point behind the MAF. Any air after the MAF is already metered by the computer so it needs to stay in the intake system behind the MAF.

[boost_boy]

My ca18det is bone stock the only upgrades fmic, 3inch full exhaust testpipe will i need a bov

If you're not going to upgrade your turbo anytime soon, save your money up for some real upgrades and let that puppy flutter. Keep the boost below 10psi and it won't harm the turbo too much. Yes, the turbo is old, so finish it off with some cool flutter noises. Sound better than a BOV anyway .

Dee

[sjbsuperman1425]

i agree with Dee. if its a CA T25, let it flutter. once it takes a s***, buy an SR T25 or w/e turbo you want, get a DSM BOV, recirc it, and call it good!

btw, Cold pipe FTW.

[Seishuku]

I like my $20 greddy rs knock off (came with my intercooler pipe kit!), it's worked fine for the past 3 years. The only problem was the adjustment screw on the top stripped out, but that was an easy fix.

Mine is on the hotpipe, vented. But I run a blow-through MAFS.

[float_6969]

For stock boost I wouldn't worry about it. Compressor surge at those boost levels causes little to no damage to the compressor. I'd spend the money on a Walbro and an adjustable FPR.

[Cams]

My CA18 killed 2 T25s during its lifetime, but I guess thats ok for not having a BOV during 15 years and 100k miles.

+1 for DSM 1G recirculated on the Cold Pipe.

All my EVO buddies using SSQV knock offs have had lots of issues with them. Of course most of them are running 14psi and up.

[KEMP]

i bought a brand new hks ssqv, but i needed it badly.

i have a crushed dsm bov(crushed to hold more boost, but will still blow off your 7psi.

its on a charge pipe, on end is welded to prevent coupler pop-off under boost.

its forsale.

$50 shipped?

[bap5086]

what about an n/a with a bov, is that even possible?

[Nali]

what about an n/a with a bov, is that even possible?

Are you trolling our CA18DET forum or are you just ignorant?Which ever it is go to 350z or 240gen chat and get answers from there.

i agree with Dee. if its a CA T25, let it flutter. once it takes a s***, buy an SR T25 or w/e turbo you want, get a DSM BOV, recirc it, and call it good!btw, Cold pipe FTW.

QFT!I had one on my cold pipe, but then it broke dont ask how.Then i decided to party without one and let my T25 chatter till i got the T28 installed. For a few weeks i really partied with the Turbo Chatter, it is one of the best sounds ever.

So IMO you dont need a BOV, but if you have extra cash and nothing to spend it on then buy one.

[maryjane]

1.8t bovs are cheap and easily found at local junk yards, 1 or 2 g bovs are good choices as well! hope this helps!

[bentvalves]

25psi 2871R no bov no problem. On boost on load surge is the type that kills turbos, not the cute flutter noise surge when the throttle plate is abruptly shut.