3SGTE: Which BOV?

[mr2_fast4u]

hks ssq

[HoneycuttRacing7510]

Dude Tial Sport is the way to go.Great look,Great sound,Great performance

TiAL BV 50mm Blow Off Valve

[Bak@EMSPowered]

Originally Posted by HoneycuttRacing7510

Dude Tial Sport is the way to go.Great look,Great sound,Great performance

TiAL BV 50mm Blow Off Valve

And that is necessary why? The stock BPV/BOV does just fine on the majority of MR2's Dual BOV's is completely unecessary overkill on 99.9% of MR2's around.

[91_two]

I got rid of my ssqv for a tial 50mm couldnt be happier. I am far from stock though. Like B said, if you are stock then the oem bpv is great.

[MDoe8]

edited - misread a post

[slugg#3]

Got rid of the TurboXS and loving the stock bpv. Man, I have so much better response.

[djpkins]

YouTube - welcome to Defiland....wmv

Check out my Turbosmart bov...it's at the end of the video...but it's the tits man.

[iWREK vtek SW20]

Originally Posted by MR2SW22

what gave you that idea? i dunno, i have a stock non-vented bov now, but my first 91T had an HKS SSQ and i loved the sound. not to mention it was a quality product that worked very well. my brother's old all-trac ran a blitz, sounded mean too, so those are my fav BOV of all time IMHO

I have the blitz on my 93 turbo it sounds good but makes my idle sometime drop bad. I have the stock bpv so I'm either gonna put that back on or buy the new hks ssq

[petedynamics]

Synapse all the way, own it, no lag, same as the stock as far as response, just for the swoosh sound and looks i guess, its semi loud, its more like a big fat swooshhhhhhhh

[goopi]

So running an aftermarket BOV should make your gas mileage a bit better because of the low idle?...if thats true then I would do that to save gas! My car is a guzzler!

but realistically I would stick to the stock one after reading the posts above, if your stock ones breaks then go ahead and get a new one one but other than that just keep it the way it is

[touge_3sgte]

Have the authentic Greddy Type RS....no idle probs or anything....sounds delicious....but would like to give the HKS SSQ a shoot.....any one willing to trade??

[tlesiak91]

Originally Posted by N8s93turbo

i'm selling my turboxs rfl, looking for a oem bpv.

looking to get rfl i do have the oem bpv

[karl]

Originally Posted by slugg#3

Got rid of the TurboXS and loving the stock bpv. Man, I have so much better response.

I got rid of my oem valve for a blockoff plate.

I'm loving the better response . Nothing beats shifting gears and seeing the boost needle go right back up to 22psi, instead of having to start around 5psi and repressurize the system.

And my turbo likes it just fine.

[eckoman_pdx]

Originally Posted by slugg#3

Got rid of the TurboXS and loving the stock bpv. Man, I have so much better response.

You probably had the spring adjusted wrong in that case, so it wasn't opening and closing quick enough. If you'd ran a BOV that is set up like stock (push/pull, no spring to adjust), such as the HKS SSQV, you wouldn't have had any response issues.

Originally Posted by karl

I got rid of my oem valve for a blockoff plate.

I'm loving the better response . Nothing beats shifting gears and seeing the boost needle go right back up to 22psi, instead of having to start around 5psi and repressurize the system.

And my turbo likes it just fine.

Please tell me this is your idea of a bad joke...

[WrenchswingeR]

^ no, i dont believe he's joking. Compressor surge isn't really all that bad for turbos as some people make it out to be. Not gonna say it's healthy for it, but a properly lubed/cooled turbo can withstand it..not to mention it sounds so freakin good ! ! ! Many cars even came from the factory w/o a BOV or recirc to relieve pressure..one for example, the twin-turbo'd 300ZX.

[karl]

Originally Posted by eckoman_pdx

Please tell me this is your idea of a bad joke...

no, my idea of a bad joke was going to a meet with a poster in the frunk with this image printed on it:


i do not have a blowoff valve on my car at all. my car giggles when i shift, and i don't have to wait for the turbo to re-spool between shifts. partial throttle transitions are also much smoother.

[Liger]

I don't run one either. Haven't on any of my past setups on many different cars.

[WrenchswingeR]

one of these days i'm gonna remove my stock bov and bolt up a block-off plate. Instant boost and that fluttering sound from the surge just sounds too tempting.. although the stocker vented to atmosphere sounds and performs pretty dam good too (and its free!!)

[eckoman_pdx]

Wow...just wow. You guys seriously are running no BOV/BPV? Just...wow. Just because a car came that way doesn't make it correct or ideal by any means. Compressor surge is NOT good for cars, and that is what you are introducing by getting rid of the BOV/BPV and blocking on a block off plate.

If you guys are removing your BOV/BPV and bolting up a black off plate. that's pure stupidity and rice.

If you have to wait for your turbo to respool when you shift, something is wrong with your car. The CT26 and CT26 spool quick, and the OEM BPV recircs. Lag, poor response and throttle should be a non-issue. If you've had these issues, something is wrong with your car. The car begins to build boost quick.

If you've installed an upgrade turbo like a Street Brawler Kit with no BOV, or if you've raised boost at all, that's just plain dumb. Removing the BPV/BOV from a turbo car and bolting on a block off plate is about as bad an idea as deciding to remove your intercooler and just run the hot pipe straight to the throttle body. It's just a bad idea.

Taking off your BPV is stupid. That "better response" excuse is just that, a bad excuse. If you don't want the sound, run it the way the OEM BPV is set up.

[PHOENIX]

Blowoff valves are used to prevent compressor surge, a phenomenon that readily occurs when lifting off the throttle of an unvented, turbocharged engine. When the throttle plate on a turbocharged engine closes, the high pressure air in the intake system is trapped by the throttle and a pressure wave is forced back into the compressor. The compressor wheel slows rapidly and may even stall, and the driver will notice a fluttering air sound. The rapid slowing or stalling stresses the turbo and imparts severe turbo lag if the driver accelerates immediately after the surge event.

So there you have it.

Some of you may decide because of your plethora of engineering experience that the experience and expertise of Toyota Engineers and original designers and current modifiers of our engines are wrong by adding a BOV, but please don't try to pass on your ideas to other people as some are impressionable, especially to bad judgment by others as seen by the raves of the car world memes.

Can you run a Turbo Engine without a BOV? Yup!

Is it safe? Maybe! You're not hurting anyone.

Is it good for your turbo or engine? NOT AT ALL. At this point please reread the first paragraph as quoted by Wikipedia (it's easier to copy and paste rather than say the same thing). If you get back to this point a third time and have not changed your mind, please sell your cars and use public transportation).

this conversation reminds me of the guys who try to convince people not to use Intercoolers because the heat is actually good for your engine.