Blow-off or Bypass?

[ben]

Which one is better? how much difference is there between the two?

I've heard that the bypass keeps the turbo spooled while switching gears because it recycles the air rather than just blowing it off.

 

[Declectic]

*moved to Force Induction*

try to keep the questions in the right forum, also check out the stickies in the fourm, they may answer your questions sometimes

 

[TurboZinc]

a blow-off valve vents the pressure the the atmosphere, while a bypass valve redirects the air back in front of the turbo. Both keep the turbo spooled during quick shifts by preventing the pressurized air from backing up into the compressor.

Both will work fine, but a bypass is required in draw-thru MAF situations. The air that has already been metered can not be vented to the atmosphere because the car would think you are getting a lot of air and compensate by increasing the amount of fuel. This would cause you to run very very rich.

 

[ben]

I guess I'll go blow off then. Because I want the sound.

 

[TrueSlide]

Make sure you set it to hard... that will give it that tight sound... if you set it properly, you can get it to blow off hard... and then when its low it will whistle... i did that to my friends eclipse... it blows off so hard, then whistles... sounds phat as hell

 

[SeanMc300]

wow....saying you only want to do it for the sound is super rice.

 

[ben]

no, I wanted to go with the one that's the best and because it doesn't matter I'll go with the one that makes the cool sound.

 

[kellog]

Originally posted by SeanMc300
wow....saying you only want to do it for the sound is super rice.

your an idoit. first of all having the turbo is not rice. and second he wants to show it off, prolly scare me a lil if herd the lil pssssshhh like i do from the evo down the street....

 

[TurboZinc]

Originally posted by kellog
your an idoit. first of all having the turbo is not rice. and second he wants to show it off, prolly scare me a lil if herd the lil pssssshhh like i do from the evo down the street....

First of all, he never said having a turbo is rice. He was saying that picking a blowoff valve based on the sound alone is rice. There is much more to picking a bov/bypass valve then just the sound.

 

[KLyDE 8020]

Hi im thinking of boosting my 00 civic si and i dont know too much on turbos what would any of you recommend thx

 

[EM1_ProJect]

wow....saying you only want to do it for the sound is super rice.

lol.. they do the same thing...the sound is a bonus. how is wanting the sound in addition, rice?

 

[mymmeryloss]

Hi im thinking of boosting my 00 civic si and i dont know too much on turbos what would any of you recommend thx

thats what they invented a new thread button for...
use it
chris

 

[bizoneoeh]

I guess I'll go blow off then. Because I want the sound.

I set my bov against the battery and it sounds lik a fricken video game, very nice. When I go out everyone thinks I've got a "sequential" bov and I dont even know what the hell a seq. bov is



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