name the bov of the supra
03-27-09, 11:44 AM
#18
compressor surge is when the air in your IC piping is pushed backwards out through your turbo. it is one of the fastest ways to wear out a turbo.
when your building boost and your throttle body closes, that is when you bov opens. well if your bov doesnt open that air has to go somewhere. so backwards through the compressor wheel it goes.
even though it may sound cool, you do not want that at all....
*edit: yes you will lose power. the rotational mass of your turbo will be lost when the surge is making your wheel stop temporarily in between surges.
when your building boost and your throttle body closes, that is when you bov opens. well if your bov doesnt open that air has to go somewhere. so backwards through the compressor wheel it goes.
even though it may sound cool, you do not want that at all....
*edit: yes you will lose power. the rotational mass of your turbo will be lost when the surge is making your wheel stop temporarily in between surges.
Last edited by SMP142; 03-27-09 at 11:48 AM.
02-07-10, 06:56 PM
#20
compressor surge is when the air in your IC piping is pushed backwards out through your turbo. it is one of the fastest ways to wear out a turbo.
when your building boost and your throttle body closes, that is when you bov opens. well if your bov doesnt open that air has to go somewhere. so backwards through the compressor wheel it goes.
even though it may sound cool, you do not want that at all....
*edit: yes you will lose power. the rotational mass of your turbo will be lost when the surge is making your wheel stop temporarily in between surges.
when your building boost and your throttle body closes, that is when you bov opens. well if your bov doesnt open that air has to go somewhere. so backwards through the compressor wheel it goes.
even though it may sound cool, you do not want that at all....
*edit: yes you will lose power. the rotational mass of your turbo will be lost when the surge is making your wheel stop temporarily in between surges.
Very helpful. thanks. so what kind of sound do you want? just a clean bov whistle..no flutter?
02-08-10, 10:41 AM
#21
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Compressor surge isn't as bad as some people lead you to believe there are many variables that play into it. For a lot of High horsepower cars they can't escape it because their tubos produce so much PSI that no BOV setup can vent enough quickly enough.
On a good quality turbo compressor surge will shorten the lifespan but not as drastically as some may think. If fact some D1 cars and other drift cars run turbo set ups without BOVs. I personally never really understood why but I have been told in certain set ups it helps with throttle response.
I in no way would suggest someone do it just for the sound, but if you know what your doing from what i have read some compressor surge can have its benefits
On a good quality turbo compressor surge will shorten the lifespan but not as drastically as some may think. If fact some D1 cars and other drift cars run turbo set ups without BOVs. I personally never really understood why but I have been told in certain set ups it helps with throttle response.
I in no way would suggest someone do it just for the sound, but if you know what your doing from what i have read some compressor surge can have its benefits
02-09-10, 09:09 AM
#22
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yeah i was wondering y they would have it compression surge in that supra, since everyone says its bad, since its a professional built car, figured there has to b some sort of purpose of y they have it or else they wouldnt have that sound
02-09-10, 12:19 PM
#23
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Im not sure but i think they run no blow off valve is because they can get boost faster because the piping is already filled with compressed air when u hit the gas again. But yea its probably not good for your turbo.
02-09-10, 07:42 PM
#24
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so its basically like choosing good response, low life span turbo, and lower horse power over low response, higher life span turbo, and higher horse power? well i guess that sounds right for someone rich who dont mind turbo going out, since that set up sounds better for track usage right?
02-09-10, 09:50 PM
#26
Mortgage Slave
You can have dose for free!!! Pull the vac line off the factory BOV and there you go, and it's silly loud as well. *
Listen to this!
* Disclaimer: Not my fault if someone tries this and ruins their turbo(s). Plus you'll look like a tool and sound like a pigeon.
Listen to this!
* Disclaimer: Not my fault if someone tries this and ruins their turbo(s). Plus you'll look like a tool and sound like a pigeon.
02-10-10, 05:15 AM
#28
Mortgage Slave
All turbos are going to have some surge, but do it consistently and you're going to blow the turbo(s). I'd just go with an HKS SSQV or something similar if you want something as close as possible to that sound.
02-10-10, 05:59 AM
#29
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thats what i was thinking off at first, but was wondering, does bov make a difference in power? im only planning on using stock turbos and raise the boost prob to 15psi
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