bov or no bov? - Zilvia.net Forums | Nissan 240SX (Silvia) and Z (Fairlady) Car Forum

s14jesse · 08-02-2008, 03:24 PM

is it bad to run my SR with no BOV? i had it like that 4 a bit but i wasnt sure if thats safe or not

Slidin240Wayz · 08-02-2008, 03:29 PM

It's ok...........

***Future240*** · 08-02-2008, 03:36 PM

some people swear by them, some people hate them, its really up to you

Addicted2Kouki · 08-02-2008, 09:22 PM

If youre gonna get one, recirculate it.

SoguRacing · 08-02-2008, 09:25 PM

a blow off valve only prolongs the life of your turbo. if you don't care about your turbo then dont use a blow off valve. if you want to protect your investment, $150 is cheap insurance.

corriganjoshua · 08-02-2008, 09:27 PM

Quote:

Originally Posted by SoguRacing

a blow off valve only prolongs the life of your turbo. if you don't care about your turbo then dont use a blow off valve. if you want to protect your investment, $150 is cheap insurance.

Couldnt have said it better.

smelly240 · 08-02-2008, 09:40 PM

im waiting for the "if you dont run a blowoff your turbo will spin backwards and explode comments"...

it wont be the reason your shit breaks - but its not necessarily "good" for it

ZX88 · 08-02-2008, 09:51 PM

Quote:

Originally Posted by smelly240

im waiting for the "if you dont run a blowoff your turbo will spin backwards and explode comments"...

it wont be the reason your shit breaks - but its not necessarily "good" for it

well it could eventually lead to you shit breaking. it all depends on how strong the turbo like the condition of it. but surge isnt a good thing over long periods of time.

*!Zar!* · 08-02-2008, 10:15 PM

Meh, bov's are over rated.

I ran for ages without one and shit still worked.

fbiphil · 08-02-2008, 10:18 PM

I adjusted mine so it only opens at max boost- turbo stall sounds so much better than blowoff!
Engine feels more responsive, too- you're not dumping all of your boost every time you shift.
Of course, I'm waiting for my t25 to die so I can justify upgrading... so if this actually DOES shorten the life, so be it. I might not be so willing to take a chance when I have the new one on there!!

*!Zar!* · 08-02-2008, 10:41 PM

It takes a lot of abuse, and time for a t25 to die with no bov.

Anyways, you can get a t25 with every sunday paper now-a-days.

smelly240 · 08-02-2008, 10:57 PM

for a long time i ran no bov - and never had a turbo break... and i dont run a sissy t25 @ 12psi

sxe · 08-02-2008, 11:22 PM

MAN if you dont run a blowoff your turbo will spin backwards and explode!!

*!Zar!* · 08-02-2008, 11:29 PM

I heard that if you don't run a blow off valve the turbo will stop spinning and then a black hole will form.

SoguRacing · 08-02-2008, 11:49 PM

Quote:

Originally Posted by sxe

MAN if you dont run a blowoff your turbo will spin backwards and explode!!

boy does that sounds so uneducated. it's like spreading a rumor among children. explode? some impeller fins might shoot off out of your tailpipe if you don't have a cat. other than that i feel all of possibilities have been covered. your choice man.

Oo_Skyline_oO · 08-02-2008, 11:53 PM

Quote:

Originally Posted by SoguRacing

boy does that sounds so uneducated. it's like spreading a rumor among children. explode? some impeller fins might shoot off out of your tailpipe if you don't have a cat. other than that i feel all of possibilities have been covered. your choice man.

haha here let me explain sarcasm..............now you know

nice wheels btw

murda-c · 08-03-2008, 12:04 AM

Quote:

Originally Posted by SoguRacing

boy does that sounds so uneducated. it's like spreading a rumor among children. explode? some impeller fins might shoot off out of your tailpipe if you don't have a cat. other than that i feel all of possibilities have been covered. your choice man.

If you get impeller fins out your tailpipe you might have to wonder what kind of damage they did on the way through your motor.

SoguRacing · 08-03-2008, 12:07 AM

haha my bad i meant the little fins in the exhaust housing.

my bad

DDDsquad_s13panda · 08-03-2008, 04:35 AM

all it is is that u loss spool. due to the pressured air goin back to the turbo and slowing down ur spool.

i think its gonna take a long time to break. like everyone says. but that shit aint gonna BLOW UP.

aNskY · 08-03-2008, 07:02 AM

i never ran a bov on my stock sr's, never had a t25 blow either.

now that im running an upgraded turbo i run a bov because $150 < $1000+

vent to atmo without stalling too... djetro FTMFW!

Z33dori · 08-03-2008, 10:18 AM

yea i would be more worried about shitty waste gates than not having a bov....

renegade_ewok · 08-03-2008, 10:27 AM

Some motors in japan never came from the factory with a BOV. You'll be fine on stock boost

Silverbullet · 08-03-2008, 01:42 PM

uhh, all turbo motors from Nissan came with a BOV.

Oo_Skyline_oO · 08-03-2008, 01:47 PM

^^^ I beleive cefiro and/or laurels with RB20DET's come without BOV, my first motor came with an elbow without a bov.

here's a pic of one: http://www.flashoptions.com/i_prod/cefiro%20RB20%201.JPG

nightshiftgarage · 08-03-2008, 01:50 PM

im running a t67 with no bov.for drifts i ll probably make a peice of charge pipe that has one . but for street and drag no bov for me

jskateborders · 08-03-2008, 03:12 PM

That sounds like a good Idea... Plus, Ive been told that bb turbos dont suffer from compressor surge. Not my words, just figured Id throw that in there to get some feedback on that. Theoretically, it makes sense that bb turbos would deal with it better.

racepar1 · 08-03-2008, 03:34 PM

BOV's are a good thing to have, but for god's sake get one that you can re-circulate back into the intake. I hate the BOV's that sound all "the fast and the furious"! OH, and adjust it correctly. It is super annoying when the BOV is always going off, especially with a HKS ssqv!

Clowny · 08-03-2008, 04:32 PM

Quote:

Originally Posted by Silverbullet

uhh, all turbo motors from Nissan came with a BOV.

my 86 200sx with the factory ca18et doesnt have a bov. also doesnt have an intercooler. just a pipe going directly from the turbo to the throttlebody.

Z33dori · 08-03-2008, 07:33 PM

Quote:

Originally Posted by racepar1

BOV's are a good thing to have, but for god's sake get one that you can re-circulate back into the intake. I hate the BOV's that sound all "the fast and the furious"! OH, and adjust it correctly. It is super annoying when the BOV is always going off, especially with a HKS ssqv!

lol ... the only one i hate to hear is the Greddy Type S... most annoying sound in the world

idk my mom has a recirculated stock rx7 bov on her Z and its pretty noticeable at full boost out side of the car.

bardabe · 08-03-2008, 11:08 PM

Z31, had no BOV either, nor did CA18DET's you will be OK don't worry about it.

08-02-2008, 03:24 PM	#1
s14jesse Zilvia Junkie Join Date: Jan 2008 Location: highland (909) Age: 32 Posts: 410 Trader Rating: (6) Feedback Score: 6 reviews	bov or no bov? is it bad to run my SR with no BOV? i had it like that 4 a bit but i wasnt sure if thats safe or not

08-02-2008, 03:29 PM	#2
Slidin240Wayz Post Whore! Join Date: Jan 2005 Location: Everywhere Age: 36 Posts: 5,427 Trader Rating: (9) Feedback Score: 9 reviews	It's ok........... __________________ Support Zilvia by purchasing a sticker!

08-02-2008, 09:25 PM	#5
SoguRacing Post Whore! Join Date: Nov 2007 Location: (714) Age: 35 Posts: 2,967 Trader Rating: (23) Rides Gallery: SoguRacing Feedback Score: 23 reviews	a blow off valve only prolongs the life of your turbo. if you don't care about your turbo then dont use a blow off valve. if you want to protect your investment, $150 is cheap insurance. __________________ Pre Tune Checkup! Compression,LeakDown,Vacuum Test $80. Cams Install: $180

08-02-2008, 09:40 PM	#7
smelly240 Nissanaholic! Join Date: Oct 2006 Location: Philaburbia Age: 43 Posts: 2,137 Trader Rating: (4) Feedback Score: 4 reviews	im waiting for the "if you dont run a blowoff your turbo will spin backwards and explode comments"... it wont be the reason your shit breaks - but its not necessarily "good" for it __________________ HREs on a S13 - check, 6262 - check, Girlfriend.... - nope

08-02-2008, 10:15 PM	#9
!Zar! Premium Member Join Date: Nov 2004 Location: North Korea Posts: 14,576 Trader Rating: (27) Feedback Score: 27 reviews	Meh, bov's are over rated. I ran for ages without one and shit still worked. __________________

08-02-2008, 10:18 PM	#10
fbiphil Zilvia Member Join Date: Sep 2007 Location: Sacramento Posts: 199 Trader Rating: (4) Feedback Score: 4 reviews	I adjusted mine so it only opens at max boost- turbo stall sounds so much better than blowoff! Engine feels more responsive, too- you're not dumping all of your boost every time you shift. Of course, I'm waiting for my t25 to die so I can justify upgrading... so if this actually DOES shorten the life, so be it. I might not be so willing to take a chance when I have the new one on there!!

08-02-2008, 10:41 PM	#11
!Zar! Premium Member Join Date: Nov 2004 Location: North Korea Posts: 14,576 Trader Rating: (27) Feedback Score: 27 reviews	It takes a lot of abuse, and time for a t25 to die with no bov. Anyways, you can get a t25 with every sunday paper now-a-days. __________________

08-02-2008, 10:57 PM	#12
smelly240 Nissanaholic! Join Date: Oct 2006 Location: Philaburbia Age: 43 Posts: 2,137 Trader Rating: (4) Feedback Score: 4 reviews	for a long time i ran no bov - and never had a turbo break... and i dont run a sissy t25 @ 12psi __________________ HREs on a S13 - check, 6262 - check, Girlfriend.... - nope

08-02-2008, 11:22 PM	#13
sxe Zilvia Addict Join Date: Aug 2007 Location: in a house. CA Age: 32 Posts: 686 Trader Rating: (2) Feedback Score: 2 reviews	MAN if you dont run a blowoff your turbo will spin backwards and explode!! __________________ Wwwwhhaaaaa Pppssshhh

08-02-2008, 11:29 PM	#14
!Zar! Premium Member Join Date: Nov 2004 Location: North Korea Posts: 14,576 Trader Rating: (27) Feedback Score: 27 reviews	I heard that if you don't run a blow off valve the turbo will stop spinning and then a black hole will form. __________________

08-03-2008, 12:07 AM	#18
SoguRacing Post Whore! Join Date: Nov 2007 Location: (714) Age: 35 Posts: 2,967 Trader Rating: (23) Rides Gallery: SoguRacing Feedback Score: 23 reviews	haha my bad i meant the little fins in the exhaust housing. my bad __________________ Pre Tune Checkup! Compression,LeakDown,Vacuum Test $80. Cams Install: $180

08-03-2008, 04:35 AM	#19
DDDsquad_s13panda BANNED Join Date: Dec 2007 Location: Fontana, IE. Age: 34 Posts: 550 Trader Rating: (7) Feedback Score: 7 reviews	all it is is that u loss spool. due to the pressured air goin back to the turbo and slowing down ur spool. i think its gonna take a long time to break. like everyone says. but that shit aint gonna BLOW UP.

08-03-2008, 07:02 AM	#20
aNskY Nissanaholic! Join Date: Apr 2005 Location: NY Age: 37 Posts: 1,604 Trader Rating: (10) Feedback Score: 10 reviews	i never ran a bov on my stock sr's, never had a t25 blow either. now that im running an upgraded turbo i run a bov because $150 < $1000+ vent to atmo without stalling too... djetro FTMFW!

08-03-2008, 10:18 AM	#21
Z33dori Post Whore! Join Date: Dec 2006 Location: Riverview, FL Age: 32 Posts: 5,557 Trader Rating: (12) Feedback Score: 12 reviews	yea i would be more worried about shitty waste gates than not having a bov.... __________________

08-03-2008, 10:27 AM	#22
renegade_ewok Zilvia Junkie Join Date: Oct 2007 Location: NYC Age: 33 Posts: 450 Trader Rating: (0) Feedback Score: 0 reviews	Some motors in japan never came from the factory with a BOV. You'll be fine on stock boost

08-03-2008, 01:47 PM	#24
Oo_Skyline_oO BANNED Join Date: Feb 2008 Location: Santa Ana, CA Posts: 639 Trader Rating: (6) Feedback Score: 6 reviews	^^^ I beleive cefiro and/or laurels with RB20DET's come without BOV, my first motor came with an elbow without a bov. here's a pic of one: http://www.flashoptions.com/i_prod/cefiro%20RB20%201.JPG

08-03-2008, 01:50 PM	#25
nightshiftgarage Zilvia Member Join Date: Sep 2006 Location: tn Age: 37 Posts: 170 Trader Rating: (0) Feedback Score: 0 reviews	im running a t67 with no bov.for drifts i ll probably make a peice of charge pipe that has one . but for street and drag no bov for me __________________ "NIGHTSHIFT-GARAGE"

08-03-2008, 03:12 PM	#26
jskateborders Zilvia FREAK! Join Date: Apr 2007 Location: Tucson AZ Age: 32 Posts: 1,258 Trader Rating: (5) Feedback Score: 5 reviews	That sounds like a good Idea... Plus, Ive been told that bb turbos dont suffer from compressor surge. Not my words, just figured Id throw that in there to get some feedback on that. Theoretically, it makes sense that bb turbos would deal with it better. __________________ "I am Norwegian, and are not familiar with your urban words :P"

08-03-2008, 03:34 PM	#27
racepar1 Post Whore! Join Date: Jul 2007 Location: Simi Valley, CA Age: 38 Posts: 9,006 Trader Rating: (106) Rides Gallery: racepar1 Feedback Score: 106 reviews	BOV's are a good thing to have, but for god's sake get one that you can re-circulate back into the intake. I hate the BOV's that sound all "the fast and the furious"! OH, and adjust it correctly. It is super annoying when the BOV is always going off, especially with a HKS ssqv!

08-03-2008, 11:08 PM	#30
bardabe Post Whore! Join Date: Aug 2005 Location: SoCal Age: 31 Posts: 4,716 Trader Rating: (10) Rides Gallery: bardabe Feedback Score: 10 reviews	Z31, had no BOV either, nor did CA18DET's you will be OK don't worry about it. __________________ Review Thread

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