Blow off valve on Corolla Sportivo

[o_man_ra23]

You might infer ghey to rice... but thats merely your opinion...

Cheers, Owen

[ganador]

Factory 7psi

Do I really need a blow off valve?
Car has 140 000kms. Changed turbo 10 000kms ago. The factory Ihi ball bearing turbo died. The bearing collapsed and the blades grinded the housing.
It happened the same time when I removed the blow off valve. Im worried the death of that turbo was caused by me removing the BOV.

Now with the new custom turbo I dont want the BOV for defect purposes. Too lazy to source plumb back setup or original setup.

So my question is can I run the car without one ? Will it damage my turbo?

Mate no affence but thats pretty slack if you saying you too lazy to use a plumb back system when all you do is running the plumb back into the intake (after the AFM). Cause without the BOV your just going to bang up another turbo from the back pressure when the Throttle closes. i would rather spend a little bit more for the plumb back to make it legal then having to buy a new turbo every 30,000k's

[takai]

28psi & 480hp from 1775cc != rice. But it does have a bloody BIG BOV.

[stradlater]

AND it's a Peugeot!!! Lovely!

[o_man_ra23]

Hmm... racing use is different to street use. Race engines are run extremely hard and get rebuilt quite often (if you get more than a season from an F1 engine before its binworthy, you have done something wrong), and as such they require much finer control on things like pressure relief, due to there being no fudge margin in their designs. Street engines are designed to last 200,000+kms of regular use, and as such dont require the fine control of things like the pugeot shown... so a BIG BOV as you put it is not necessary, and becomes RICE. RICE is Race Inspired Cosmetic Enhancements... basically parts that work on a race car, but are totally useless on the street, other than cosmetic appearance.

Yes, I do intend on putting spoilers and the like on my 23, but I also intend on weekend racing... so that cancels out RICE factor. So now, I hardly think that pugeot's big BOV helps your anti-rice argument in any way... sorry.

Cheers, Owen

[YLD-16L]

I run a plumb back BOV on my car (audible from outside the car) because:

a) it helps keep my tiny turbo spinning between gear changes by relieving pressure between the throttle and compressor (it does make a difference)

2) it prevents "dose" noise or flutters when you back off or change gears after being on boost (way more ghey than a BOV noise)

iii) I have never seen any conclusive evidence for the value of a BOV in increasing/decreasing turbo life, so it's a cheap investment if it does happen to be of benefit

$) I couldn't give 1/10th of a flying fek if someone doesn't like the sound of them

In regard to the inital post, just get a bosch plumb back BOV from your local parts store, I doubt Toyota could possibly be cheaper than the $40 or so they will charge.

Also the people noting engines that never had BOVs, note that most of them are very old. Look at more modern engines and note how many have factory fitted plumb back BOV's (fitted for turbo longevity or to prevent unecessary flutter noises, who knows their reasoning?)

[mtp_69_i]

So now, I hardly think that pugeot's big BOV helps your anti-rice argument in any way... sorry.

Cheers, Owen

i can't find an arguement about BOVs anywhere in that post.

[GReddy_ES]

Factory 7psi

Do I really need a blow off valve?
Car has 140 000kms. Changed turbo 10 000kms ago. The factory Ihi ball bearing turbo died. The bearing collapsed and the blades grinded the housing.
It happened the same time when I removed the blow off valve. Im worried the death of that turbo was caused by me removing the BOV.

Now with the new custom turbo I dont want the BOV for defect purposes. Too lazy to source plumb back setup or original setup.

So my question is can I run the car without one ? Will it damage my turbo?

hey mate..its best u plumb it back..helps extend the life of the turbo..i've got a HKS one on my sportivo and it sounds great there wasn't a "factory" BOV at all that toyota put in..they only had a little sealed piped on the intercooler piping for u to fit an aftermarket one ...

oh btw..wad turbo did u change to?

[mr2lover]

hey mate..its best u plumb it back..helps extend the life of the turbo..i've got a HKS one on my sportivo and it sounds great there wasn't a "factory" BOV at all that toyota put in..they only had a little sealed piped on the intercooler piping for u to fit an aftermarket one ...

oh btw..wad turbo did u change to?

ahhh so you never had one from factory? I see. Yeah I still have that pipe with the sealed plugged up section. i thought the previous owner got rid of it. Strange thing is I have teh supplementary manual someone gave me from here and it states that there is a factory blow off valve and it has a hose going back to the intake side of the pipe.

I put a custom turbo on. Bigger intake housing. Exhaust housing is the same but the intake side has a new housing and is much bigger but I lost the ball bearing setup.
Still running factory boost. Some people say you can run 12 psi on these corollas but who knows.
Thanks heaps.

[GReddy_ES]

ahhh so you never had one from factory? I see. Yeah I still have that pipe with the sealed plugged up section. i thought the previous owner got rid of it. Strange thing is I have teh supplementary manual someone gave me from here and it states that there is a factory blow off valve and it has a hose going back to the intake side of the pipe.

I put a custom turbo on. Bigger intake housing. Exhaust housing is the same but the intake side has a new housing and is much bigger but I lost the ball bearing setup.
Still running factory boost. Some people say you can run 12 psi on these corollas but who knows.
Thanks heaps.

oh really?cos that was the only outlet for a BOV when i bought the car..and my mechanic told me that thats prob for a BOV to be placed..

so how much did the turbo cost u?just in case my goes too..*touch wood*

[mr2lover]

The turbo cost me a 1000 bucks. I was in a dilemma when it happened because there were no replacement turbos. And the nissan t25 didnt even fit! no room and anything else I had to make a custom manifold plus then redo dump pipe for exhaust. That would of blown it out . I just wanted th ecar back on the road and lucky a place here in sydney precision turbos had a custom setup that matched up to the exhaust side. Everything was balanced.

I just made new oil lines and water lines because the metal ones from factory sat slightl different. That was it.

1000 bucks later. No labour as my mate did it. I was back on the road.

[mr2lover]

oh really?cos that was the only outlet for a BOV when i bought the car..and my mechanic told me that thats prob for a BOV to be placed..

so how much did the turbo cost u?just in case my goes too..*touch wood*

did you buy the car new though?

Unless it was a factory option to put the bov on. on the manual its called "airbypass valve".

[GReddy_ES]

did you buy the car new though?

Unless it was a factory option to put the bov on. on the manual its called "airbypass valve".

i got it 2nd hand..oh icic..the previous owner probably didn't go for the factory option

[mr2lover]

I would love to know where all the 110 made are. I know of 4 in sydney here.

[GReddy_ES]

I would love to know where all the 110 made are. I know of 4 in sydney here.

one's in perth..hopefully not the only one haha think i might have seen a couple arnd before