Aftermarket BOV for RB26 - HELP!!

[BoOsTeD_RB26]

Im looking at buying an after market blow off valve cos i love the sound. Now seeing as the RB26's have 2 from the factory, would one still do the job?

The reason I ask is I have seen an r34 gtr with only one HKS blow off valve:

http://www.xspeed.com.au/ssport/04r34/04r34gtrbov.jpg

Will this be alright with any sort of blow off valve?

[BoOsTeD_RB26]

By the way, which blow off valves have the distinct sound which sounds like several psshts....hard to explain but it kinda goes "Psshh shh shh shh shht"

if you know wot i mean

[doxximus]

like when the bov goes: VU KUKUKUKU ?

i think thats the intercooler noise or some shit my bro inlaw said

if ur in northern suburbs of melbourne u'll know it as the thomastown mating call

[Sub Boy]

The only one that can stand up to the job (Well there is prob others!)....The Greedy type-R BOV. This puppy is huge! Approx $600

I had 2x Turbosmart's on mine....But I have just put the factory ones back on, as the T/S's vented into the atmo, and made the car run like sh1t! idled like crap, stalled at the lights, fluctuated through gear changes,and ran the car rich/lean!

Factory ones are good for 600 odd horses....No need to change!

Unless you have an after market computer that you can get rid of the AFM's, and run atmo BOV's ....Stick with the factory Pssss makers!

CV

[Guest Nismo_Freak]

Alrighty ... where to begin! First off that Pshh shhs shsh shh noise you heard was from the valve not opening all the way cause of either two things, a. shifted before acchieving enough boost to open the valve or b. valve is not adjusted properly. Notice the placement of that valve. Its after the intercooler when it changes into a single pipe. Which is an ok place to put it.

Sounds & Quality:

Blitz's unit makes either a quiet Psssssssss or a louder Pssssssss depending on weither or not you used the horn. The Blitz unit as expected is very high quality but not the loudest on earth.

HKS's SSQV unit makes a loud and sharp noise. Its a very good BOV as well. Often alot cheaper than the Blitz units. Only way I can explain it is a loud Chirrr!

HKS's Racing BOV, unit makes different noises depending on boost. It varies from the SSQV to the Blitz unit. Its a high boost only BOV.

GReddy Type-S, if you've seen the fast and the furious thats the BOV noise they used. It sounds similar to a balloon when you let the air out but in a quick burst of sound. Its not ment to run in high boost setups so if you run more than 1 bar get the Type-R.

GReddy Type-R, its the racing BOV used in high boost setups. GReddy recommends that you run around 14.5psi (1 bar) or more to effectively use the valve, it has a hard spring. It makes a sound similar to Type-S but with more of a Psssss noise created by the Blitz. Its a well adapted BOV for high boost.

Apex'i BOV, this is a general BOV. It has good response and sounds pretty boring but it gets the job done effectively. It sounds like the Blitz with is Pssssss but it sounds quiet and it similar to a turbodiesel bus, lory, 18 wheeler, whatever you wanna call it.

Turbo XS BOVs have a hard problem with staying close when at idle, this is due to spring pressures. However Ive known people to use them on 4cyl. without any problems perhaps cause the 4-cyl. doesnt create as much vacuum pressures as the larger 6-cyl. Either way its a cheap and effective BOV if you can get it to work.

When you vent atmosperically you will need to tune out the stumble with the S-AFC. Stumble isnt really pronounced but can be felt shifting at certain RPMs.

[BoOsTeD_RB26]

so i take it that any of those blow off valves will make the "VU KUKUKUKU " sound, only if they are partly open?

to fix the ideling problems i was thinking to get the HKS Electronic Idling Stabilizer

[Guest Nismo_Freak]

Yes

[adam 32]

the choo choo choo sound you are referring to is air not being released by the BOV due to low boost

instead the air passes back through the turbo, the sound you hear is air being 'chopped' by the turbo blades and exiting through the filter. it has nothing to do with the BOV

my recommendation is HKS SSQ and if you put it on the intercooler pipe after the intercooler core then you will only need 1!

[BoOsTeD_RB26]

as shown in the pic above?

i've got pod air filters now, and it makes a bit of a PSSH when u boot it but i want it louder. will the HKS SSQ do this for me?

my only prob with the HKS SSQ is its price!...nearly $700

how much horsepower can the SSQ handle?

[adam 32]

its not so much hp, more boost pressure

stock ones leak when theres too much boost pressure running through the inlet pipes, the SSQ should handle 25psi at least

[BoOsTeD_RB26]

25psi at least

alright wicket

i gather that you have a SSQ?

is it loud ?

how much did you pay for it?.....do you have fuel/ideling problems?

where can i get em cheap?

sorry bout all the questions ppl

[BoOsTeD_RB26]

another question....

on the autospeed website the HKS SSQ valves are $567 for a universal one and $1,095 for a kit for the GTR

it says the kit includes all needed mounting brackets, mounting flanges and piping for each specific application.

is it hard to make up your own adapter, and does it cost much?

[adam 32]

yeh ive got one on my car, it does the job... its not very loud and doesnt attract too much attention as you can drive around under 3000rpm without it making a sound.

[Guest Nismo_Freak]

They are only $200 in the US for the valve only.

$200 US = $366 Aussie

I could pick one up for you if you would like.

[Guest Nismo_Freak]

They are only $200 in the US for the valve only.

$200 US = $366 Aussie

I could pick one up for you if you would like.