Supra Forums banner
1 - 9 of 9 Posts
G

·
Discussion Starter · #1 ·
Is it worth it getting a bov(GREDDY TYPE-S) when you have a automatic bpu? Only time you can hear it would be when you let off.
 

·
Old School
Joined
·
4,421 Posts
JDMSUPRA said:
It's up to you to make that call, but it would make your turbos last longer by avoiding compressor surge.
Why? His car already has a blow off valve routed back to the intake (also called a bypass valve). All stock Supras do.

The only reason to put an aftermarket BOV on a stock twin car is for the noise.
 
G

·
Discussion Starter · #5 ·
lagtime is right all turbo cars come with a bov. The only reason to upgrade bov is for sound or if you are running larger turbos and running high boost and the stock one is leaking.
 
G

·
Discussion Starter · #7 ·
i can answer that one, any car that as the maf before the bov and the atmosphere bov well have rich problems.

The reason why is that you are letting air go outside of the intake system, yet that air has already been read by the computer so it going to give the amount of fuel need to X amount of air yet you are give the engine X-Y air, so in the end you have a small period of richness.

My idea and has always worked for my DSM is just don't vent unless you are running the maf after the bov. Which is only done for large turbos
 

·
Old School
Joined
·
4,421 Posts
DSMwildfire0310 said:
i can answer that one, any car that as the maf before the bov and the atmosphere bov well have rich problems.

The reason why is that you are letting air go outside of the intake system, yet that air has already been read by the computer so it going to give the amount of fuel need to X amount of air yet you are give the engine X-Y air, so in the end you have a small period of richness.

My idea and has always worked for my DSM is just don't vent unless you are running the maf after the bov. Which is only done for large turbos
Well, I have one (HKS SSQ) vented to atmosphere on my stock MAF Supra. If it runs rich ever I can't see it. No black puffs of smoke ever out the tailpipe when shifting, no stalling or stumbling on deceleration, it drives 100% the same as it did when I had the stock bypass valve in there.

I know in theory it should be rich when losing metered air. My assumption is having a new, quick reacting O2 sensor keeps the ECU happy...

(I bought it for the noise. So sue me.)
 
1 - 9 of 9 Posts
This is an older thread, you may not receive a response, and could be reviving an old thread. Please consider creating a new thread.
Top