blow off valve - GT-R Register - Nissan Skyline and GT-R Drivers Club forum

Want to buy a banner ad? Find out more here.

Go Back   GT-R Register - Nissan Skyline and GT-R Drivers Club forum > General > General Nissan R35 GT-R Chat
Register Garage FAQ Members List Calendar Search Today's Posts Mark Forums Read Insurance


Reply
 
LinkBack Thread Tools Rate Thread Display Modes
Old 27th April 2011, 12:21 AM   #1 (permalink)
enshiu is busy working on R32 GTS4
Registered
 
enshiu's Avatar
 
Join Date: Aug 2010
Location: Japan,UK,NL
Cars owned: 2008 R35 GT-R JDM Black Premium Edition, 1991 Nissan GTS4, JDM Toyota Camry,(winter use) Subaru Vivio
Posts: 3,316
blow off valve

Morning guys,

Looking for a blow off valve.

Which one is the best?

HKS is the best I think but, are there more brands which are cheaper?
__________________

Last edited by enshiu; 27th April 2011 at 08:24 AM..
enshiu is offline   Reply With Quote
Old 27th April 2011, 08:27 AM   #2 (permalink)
thistle is aware they can edit their status
GTR.co.uk seasoned Member
 
thistle's Avatar
 
Join Date: Oct 2007
Location: UK
Cars owned: GTR, D4 S8, MkV GTI, E46 325ti, E46 M3
Posts: 1,216
Stock ones best for most.
__________________
thistle is offline   Reply With Quote
Old 27th April 2011, 08:30 AM   #3 (permalink)
enshiu is busy working on R32 GTS4
Registered
 
enshiu's Avatar
 
Join Date: Aug 2010
Location: Japan,UK,NL
Cars owned: 2008 R35 GT-R JDM Black Premium Edition, 1991 Nissan GTS4, JDM Toyota Camry,(winter use) Subaru Vivio
Posts: 3,316
Quote:
Originally Posted by thistle View Post
Stock ones best for most.
I would like to have that tsssttt sound
__________________
enshiu is offline   Reply With Quote
 
Old 27th April 2011, 08:58 AM   #4 (permalink)
alloy is SVM Stage 6!
Executive GTR Owners Club Member
 
alloy's Avatar
 
Join Date: Apr 2005
Location: London
Posts: 1,540
Don't do it!
__________________
GT-R Black Edition | SVM | GTC | VM
alloy is offline   Reply With Quote
Old 27th April 2011, 09:01 AM   #5 (permalink)
enshiu is busy working on R32 GTS4
Registered
 
enshiu's Avatar
 
Join Date: Aug 2010
Location: Japan,UK,NL
Cars owned: 2008 R35 GT-R JDM Black Premium Edition, 1991 Nissan GTS4, JDM Toyota Camry,(winter use) Subaru Vivio
Posts: 3,316
Quote:
Originally Posted by alloy View Post
Don't do it!
Does it ruin anything?

please explain.
__________________
enshiu is offline   Reply With Quote
Old 27th April 2011, 09:05 AM   #6 (permalink)
alloy is SVM Stage 6!
Executive GTR Owners Club Member
 
alloy's Avatar
 
Join Date: Apr 2005
Location: London
Posts: 1,540
Put down your Max Power, walk out of Halfords, go find some where quiet and have a word with yourself!

If you want to hear your turbos, get some intakes, something that arguably actually increases perfromance. BOV are cool when you have a Scumbaru, they are not the reserve of a GTR
__________________
GT-R Black Edition | SVM | GTC | VM
alloy is offline   Reply With Quote
Old 27th April 2011, 09:09 AM   #7 (permalink)
enshiu is busy working on R32 GTS4
Registered
 
enshiu's Avatar
 
Join Date: Aug 2010
Location: Japan,UK,NL
Cars owned: 2008 R35 GT-R JDM Black Premium Edition, 1991 Nissan GTS4, JDM Toyota Camry,(winter use) Subaru Vivio
Posts: 3,316
Quote:
Originally Posted by alloy View Post
Put down your Max Power, walk out of Halfords, go find some where quiet and have a word with yourself!

If you want to hear your turbos, get some intakes, something that arguably actually increases perfromance. BOV are cool when you have a Scumbaru, they are not the reserve of a GTR
So you don't like the sound and keep on standard bov's.
__________________
enshiu is offline   Reply With Quote
Old 27th April 2011, 09:16 AM   #8 (permalink)
alloy is SVM Stage 6!
Executive GTR Owners Club Member
 
alloy's Avatar
 
Join Date: Apr 2005
Location: London
Posts: 1,540
You start venting to atmosphere you run rich as you let the throttle off, potentially causing hesitation and backfires. Do a google there is enough literature out there and experiences of BOVs that will give you an idea of the pros and cons.

If you want induction noise, get yourself some GTC intakes for example. When the stock BOVs recirc air, you can still here the wooosh, only you wont be impressing the public on the footpath as they probably won't be able to hear, so perhaps not what you're after
__________________
GT-R Black Edition | SVM | GTC | VM
alloy is offline   Reply With Quote
Old 27th April 2011, 09:23 AM   #9 (permalink)
enshiu is busy working on R32 GTS4
Registered
 
enshiu's Avatar
 
Join Date: Aug 2010
Location: Japan,UK,NL
Cars owned: 2008 R35 GT-R JDM Black Premium Edition, 1991 Nissan GTS4, JDM Toyota Camry,(winter use) Subaru Vivio
Posts: 3,316
Quote:
Originally Posted by alloy View Post
You start venting to atmosphere you run rich as you let the throttle off, potentially causing hesitation and backfires. Do a google there is enough literature out there and experiences of BOVs that will give you an idea of the pros and cons.

If you want induction noise, get yourself some GTC intakes for example. When the stock BOVs recirc air, you can still here the wooosh, only you wont be impressing the public on the footpath as they probably won't be able to hear, so perhaps not what you're after

Disadvantages:

In the case where a mass airflow sensor is used and is located upstream from the blowoff valve, the engine control unit (ECU) will meter out excess fuel because the atmospherically vented air is not subtracted from the intake charge measurements. The engine then briefly operates with a fuel-rich mixture after each valve actuation.

The rich mixing can lead to hesitation or even stalling of the engine when the throttle is closed, a situation that worsens with higher boost pressures. Occasional events of this type may be only a nuisance, but frequent events can eventually foul the spark plugs and destroy the catalytic converter, as the inefficiently combusted fuel produces soot (excess carbon) and unburned fuel in the exhaust flow can produce soot in the converter and drive the converter beyond its normal operating temperature range.

One way to mitigate the problem is to reduce the boost pressure, which reduces the required venting volume and yields less charge over-calculation by the ECU. The air can also be recirculated back into the intake, a typical stock setup for cars with an upstream MAF sensor. The situation can also be corrected by switching the fuel metering system over to a manifold absolute pressure sensor, a conversion that usually requires a compatible aftermarket ECU or piggy-back fuel controller. The MAP sensor monitors the absolute pressure in the manifold at all times and will correctly detect the change that occurs when the valve vents, allowing the ECU to reduce fuel metering accordingly.

wt* so it's even dangerous for your cat?!
__________________
enshiu is offline   Reply With Quote
Old 27th April 2011, 09:31 AM   #10 (permalink)
alloy is SVM Stage 6!
Executive GTR Owners Club Member
 
alloy's Avatar
 
Join Date: Apr 2005
Location: London
Posts: 1,540
Quote:
Originally Posted by enshiu View Post
Disadvantages:

In the case where a mass airflow sensor is used and is located upstream from the blowoff valve, the engine control unit (ECU) will meter out excess fuel because the atmospherically vented air is not subtracted from the intake charge measurements. The engine then briefly operates with a fuel-rich mixture after each valve actuation.

The rich mixing can lead to hesitation or even stalling of the engine when the throttle is closed, a situation that worsens with higher boost pressures. Occasional events of this type may be only a nuisance, but frequent events can eventually foul the spark plugs and destroy the catalytic converter, as the inefficiently combusted fuel produces soot (excess carbon) and unburned fuel in the exhaust flow can produce soot in the converter and drive the converter beyond its normal operating temperature range.

One way to mitigate the problem is to reduce the boost pressure, which reduces the required venting volume and yields less charge over-calculation by the ECU. The air can also be recirculated back into the intake, a typical stock setup for cars with an upstream MAF sensor. The situation can also be corrected by switching the fuel metering system over to a manifold absolute pressure sensor, a conversion that usually requires a compatible aftermarket ECU or piggy-back fuel controller. The MAP sensor monitors the absolute pressure in the manifold at all times and will correctly detect the change that occurs when the valve vents, allowing the ECU to reduce fuel metering accordingly.

wt* so it's even dangerous for your cat?!
I refer you to post 4 of the thread
__________________
GT-R Black Edition | SVM | GTC | VM
alloy is offline   Reply With Quote
Old 27th April 2011, 09:33 AM   #11 (permalink)
enshiu is busy working on R32 GTS4
Registered
 
enshiu's Avatar
 
Join Date: Aug 2010
Location: Japan,UK,NL
Cars owned: 2008 R35 GT-R JDM Black Premium Edition, 1991 Nissan GTS4, JDM Toyota Camry,(winter use) Subaru Vivio
Posts: 3,316
Quote:
Originally Posted by alloy View Post
I refer you to post 4 of the thread
thank you for your information will do this later(2 years) first I have maintain my car.
__________________
enshiu is offline   Reply With Quote
Old 27th April 2011, 09:35 AM   #12 (permalink)
alloy is SVM Stage 6!
Executive GTR Owners Club Member
 
alloy's Avatar
 
Join Date: Apr 2005
Location: London
Posts: 1,540
Quote:
Originally Posted by enshiu View Post
will do this later(2 years) first I have maintain my car.
???
__________________
GT-R Black Edition | SVM | GTC | VM
alloy is offline   Reply With Quote
Old 27th April 2011, 10:17 AM   #13 (permalink)
enshiu is busy working on R32 GTS4
Registered
 
enshiu's Avatar
 
Join Date: Aug 2010
Location: Japan,UK,NL
Cars owned: 2008 R35 GT-R JDM Black Premium Edition, 1991 Nissan GTS4, JDM Toyota Camry,(winter use) Subaru Vivio
Posts: 3,316
Quote:
Originally Posted by alloy View Post
???
haah I won't buy this then as it is bad for your car.
__________________
enshiu is offline   Reply With Quote
Old 27th April 2011, 10:32 AM   #14 (permalink)
s2gtr is RS6 Owner, After 5 GT-R's
Executive GTR Owners Club Member
 
s2gtr's Avatar
 
Join Date: Jun 2001
Location: DORSET
Cars owned: R33GT-S,R33GT-R,R34GT-R Now R35GT-R
Posts: 2,580
You could always get one of these:



Much easier to fit Also available in V8

Dave
__________________
s2gtr is offline   Reply With Quote
Old 27th April 2011, 10:32 AM   #15 (permalink)
sumo69 is now Stage 4 and MY12 software
GTROC Member
 
Join Date: Mar 2008
Posts: 2,154
Got there in the end!!

D
__________________
sumo69 is offline   Reply With Quote
Old 27th April 2011, 10:34 AM   #16 (permalink)
s2gtr is RS6 Owner, After 5 GT-R's
Executive GTR Owners Club Member
 
s2gtr's Avatar
 
Join Date: Jun 2001
Location: DORSET
Cars owned: R33GT-S,R33GT-R,R34GT-R Now R35GT-R
Posts: 2,580
Why not get one of these instead, much easier to fit

YouTube - SoundRacer V12 Ferrari sound

Dave

How do you embed Youtube!!
__________________
s2gtr is offline   Reply With Quote
Old 27th April 2011, 10:36 AM   #17 (permalink)
enshiu is busy working on R32 GTS4
Registered
 
enshiu's Avatar
 
Join Date: Aug 2010
Location: Japan,UK,NL
Cars owned: 2008 R35 GT-R JDM Black Premium Edition, 1991 Nissan GTS4, JDM Toyota Camry,(winter use) Subaru Vivio
Posts: 3,316
Quote:
Originally Posted by s2gtr View Post
Why not get one of these instead, much easier to fit

YouTube - SoundRacer V12 Ferrari sound

Dave

How do you embed Youtube!!
paste only the red coloured pieced with [.yt.]without dot and at the end [./yt.]
..[.yt.] http://www.youtube.com/watch?v=1RZwwYXNzgM [./yt.] without dot.

__________________

Last edited by enshiu; 27th April 2011 at 10:39 AM..
enshiu is offline   Reply With Quote
Old 27th April 2011, 10:41 AM   #18 (permalink)
_shaun_ is unaware they can edit their status
Executive GTR Owners Club Member
 
_shaun_'s Avatar
 
Join Date: Jan 2007
Location: Sussex
Cars owned: At the moment R35, JDM S14, EVO X
Posts: 1,438
I think Steve has the forge ones and andrew186 has the "go faster bits"? one.

I was looking into the GReddy ones - they all seem to be roughly the same prices...but decided against them as to be honest you can't really hear them with a standrad hood. A vented one then maybe...

I have been in "Matt black gt-r" car a few times and drived it - he was thinking of getting some but the carbon cone filters he has sounds great (once the window is down).
__________________
_shaun_ is offline   Reply With Quote
Old 27th April 2011, 10:44 AM   #19 (permalink)
enshiu is busy working on R32 GTS4
Registered
 
enshiu's Avatar
 
Join Date: Aug 2010
Location: Japan,UK,NL
Cars owned: 2008 R35 GT-R JDM Black Premium Edition, 1991 Nissan GTS4, JDM Toyota Camry,(winter use) Subaru Vivio
Posts: 3,316
Quote:
Originally Posted by _shaun_ View Post
I think Steve has the forge ones and andrew186 has the "go faster bits"? one.

I was looking into the GReddy ones - they all seem to be roughly the same prices...but decided against them as to be honest you can't really hear them with a standrad hood. A vented one then maybe...

I have been in "Matt black gt-r" car a few times and drived it - he was thinking of getting some but the carbon cone filters he has sounds great (once the window is down).
you mean this set?
GREDDY BLOW OFF VALVE BOV KIT NISSAN R35 GTR GT-R [email protected]@K | eBay
__________________
enshiu is offline   Reply With Quote
Old 27th April 2011, 10:47 AM   #20 (permalink)
_shaun_ is unaware they can edit their status
Executive GTR Owners Club Member
 
_shaun_'s Avatar
 
Join Date: Jan 2007
Location: Sussex
Cars owned: At the moment R35, JDM S14, EVO X
Posts: 1,438
Can't see the link at the moment - but this is the one

It might be the same as the one in your link
__________________
_shaun_ is offline   Reply With Quote
Reply

Bookmarks

Thread Tools
Display Modes Rate This Thread
Rate This Thread:

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On



All times are GMT. The time now is 05:15 AM.


Powered by vBulletin® Version 3.8.8
Copyright ©2000 - 2019, vBulletin Solutions, Inc.
SEO by vBSEO 3.6.1
vBulletin Security provided by vBSecurity v2.2.2 (Pro) - vBulletin Mods & Addons Copyright © 2019 DragonByte Technologies Ltd.
http://www.Tyreforums.com

tyreforums

 

Garage Plus vBulletin Plugins by Drive Thru Online, Inc.