Hotpipe and hks bov just installed

Nickd

Member
:
2003 Evolution V///
I just got done installing my bov and hotpipe heres a pic:
hks.jpg
 
I'm jealous!

Nickd said:
damn good! I love it! :)

I just installed a Greddy type-s bov and hotpipe, today. The car is running, idling, and performing, and boosting fine at about 9psi but the damn valve isn't very loud (bang). It's a little turkey but very very soft. Is the HKS loud? What do u thinks going on with mine?
 
turkey = compressor surge, no?

I didn't think you could run a bov without it liking to stall unless you relocate the MAF.
 
Huh

Kansei said:
turkey = compressor surge, no?

I didn't think you could run a bov without it liking to stall unless you relocate the MAF.

All i kno, is that I've got my bov on the hotpipe. I didn't relocate the maf or anything and my car isn't stalling or anything.
 
Where did you get the vac source from, did you use the stock line or something else?
 
Mine ran fine for about a week. Then I started doing more city driving. Stop and go traffic is where you will find it stalls.
 
my blow off valve is plenty loud! I LOVE IT! and I dont have any stalling at all! if your stalling try the egr cleaning (look for the post) mine runs perfect since I did that!:)
 
Nickd said:
my blow off valve is plenty loud! I LOVE IT! and I dont have any stalling at all! if your stalling try the egr cleaning (look for the post) mine runs perfect since I did that!:)

It has nothing to do with egr. Maybe the HKS runs better on the hotside than the Greddy type-s.
 
y0sky said:
It has nothing to do with egr. Maybe the HKS runs better on the hotside than the Greddy type-s.

U might be right dude. Does anyone kno for sure if the HKS is BETTER than the GREDDY type-s on the HOTPIPE? (uhm)

I also heard that having a bov on the hot side is bad for the turbo and the motor, and it fries the rings. Is this true? (uhm)
 
Can anyone get me a link to get that aluminium hotpipe ?

Does it will fit if i'm
Installing a new fmic setup ?

Its just because
My oem one
Is starting to crack :/
 
The stalling happens usually due to the bpv/bov staying open to long thats why maybe right now the system is working but if the units have springs and they begin to get soft you may have stalling issues.
 
Can anyone get me a link to get that aluminium hotpipe ?

Does it will fit if i'm
Installing a new fmic setup ?

Its just because
My oem one
Is starting to crack :/

That looks like a custom setup, and it wouldn't work with an FMIC setup unless you ran the piping through the hole where the SMIC was.
 
The doesnt stall from the bov staying open too long, its from the fact that the MAF has metered air that does not make it to the motor. It is vented atmospherically. The ecu dumps fuel for the amount of air it thinks is going to the motor and stalls it due to it being to rich. Running the bov on the hotpipe will not hurt the turbo, motor or rings. The reason that people say to run it closer to the throttle body is that it battles comperssor surge better. As long as you have no surge you should be fine.

The reason(from past experiences with DSM's and silvia's) that the HKS bov seems to not give the same problems is that it lets off quite a bit less air than a regular bov. It is more efficient in design and closes faster thus have less of an affect on the difference of air metered and the actual amount making it to the motor.
 
The doesnt stall from the bov staying open too long, its from the fact that the MAF has metered air that does not make it to the motor. It is vented atmospherically. The ecu dumps fuel for the amount of air it thinks is going to the motor and stalls it due to it being to rich.
=bov open to long or the amount of volume that has been expelled is greater then the amount calculated by mazda. Chances for this happening increases even more if a front mount is installed and distance and volume are increased between maf and throttle.
 
Any amount of volume expelled is unaccounted for since it happens after it is metered. Hence why you don't have this problem on a relocated maf. Mazda accounted for the air to be re-circulated in the system and not bypassing the intake entirely
 
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