Need a know-it-all
05-29-03, 04:23 PM
#1
777** The Anti-rice
Thread Starter
Join Date: Sep 2002
Location: Seattle, WA
Posts: 2,100
Likes: 0
Received 0 Likes
on
0 Posts
Need a know-it-all
Can somebody tell me what the difference between a wastegate and a blowoff valve is? i thought they were similar but someobdy said they were completely different
and maybe tell what each of them do.
and maybe tell what each of them do.
05-29-03, 04:26 PM
#2
I am no turbo guy but I beleive a Blow off valve is to releive the pressure build up in the intake track and the waste gate is in the exhaust to releive eccess exhaust to control boost creep. I am sorry if this is all wrong but I am tring to help from what I know.
Santiago
Santiago
05-29-03, 04:32 PM
#4
Rotary Enthusiast
Join Date: Aug 2001
Location: Tallahassee, FL
Posts: 1,402
Likes: 0
Received 0 Likes
on
0 Posts
A blow off valve is what most people mistakenly call a compressor bypass valve. A CBV vents extra air when you close the throttle under boost to prevent compressor surge.
What "blow off valve" actually refers to is a boost control device more commonly known as a pop-off valve. This is a simple valve which opens when a preset boost level is reached. It's a last-resort engine-saving method, and is hell on the turbo.
A wastegate is a valve which routes exhaust gasses around the turbine in order to control its speed (and thus, the manifold pressure).
Brandon
BR7 Racing
What "blow off valve" actually refers to is a boost control device more commonly known as a pop-off valve. This is a simple valve which opens when a preset boost level is reached. It's a last-resort engine-saving method, and is hell on the turbo.
A wastegate is a valve which routes exhaust gasses around the turbine in order to control its speed (and thus, the manifold pressure).
Brandon
BR7 Racing
05-29-03, 05:06 PM
#6
Senior Member
iTrader: (5)
Join Date: Nov 2001
Location: St. Louis, Mo
Posts: 477
Likes: 0
Received 0 Likes
on
0 Posts
Originally posted by 1987RX7guy
I am no turbo guy but I beleive a Blow off valve is to releive the pressure build up in the intake track and the waste gate is in the exhaust to releive eccess exhaust to control boost creep. I am sorry if this is all wrong but I am tring to help from what I know.
Santiago
I am no turbo guy but I beleive a Blow off valve is to releive the pressure build up in the intake track and the waste gate is in the exhaust to releive eccess exhaust to control boost creep. I am sorry if this is all wrong but I am tring to help from what I know.
Santiago
(Who's the girl in your avatar?
)
Thread
Thread Starter
Forum
Replies
Last Post
bajaman
3rd Generation Specific (1993-2002)
9
05-06-13 08:19 AM