No BOV - Zilvia.net Forums | Nissan 240SX (Silvia) and Z (Fairlady) Car Forum

J ROK · 12-05-2008, 12:55 AM

So I just got my motor running right, and there is an event in 1 week.

I have a v-mount set up, with no Blow off Valve.

its jsut a stock Redtop, stock turbo with basic bolt-ons.

how good or bad is it to run no bov??

Also what is good oil pressure at idle? and pressure at full throttle?

Thanks for any help. I hate starting new threads.

TurboStrong · 12-05-2008, 01:14 AM

i heard it is okay if u run stock psi.

i have no bov too im using a pressure surge thing.

smelly240 · 12-05-2008, 08:10 AM

No bov is fine on any boost.

So many of us have run without it for years - no problems.

I run one now just because im a ricer.

ZX88 · 12-05-2008, 08:32 AM

no problem especially on a t25.

240trainee · 12-05-2008, 08:42 AM

Yep.

T25's are cheap.

Only reason I run one is Disco potato turbo's aren't that cheap. and I run like 20lbs.

No BOV is awesomer though.

Grenade180sx · 12-05-2008, 09:00 AM

id worry less about compressor surge and more about smashing my car into anything that will eat that radiator

Z33dori · 12-05-2008, 09:21 AM

bov are for ricers like me... lol

i got so bored of my SSQV i even put the insertback in... lol

louisdaboois · 12-05-2008, 09:29 AM

compressor surge just sounds cooler anyway. ooof big trim turbos - bov + compressor surge = secks.

kevtrinh · 12-05-2008, 09:34 AM

You will be fine for this event and for many other events.

Z33dori · 12-05-2008, 09:34 AM

ex
YouTube - ridox supra

J ROK · 12-05-2008, 10:33 AM

wow, I remember gettina a boner from that Supra back in the day, and always wondered what BOV it had. LOL

thanks for the help everyone

Now my second question. what is good oil pressure at idle?? and pressure at full throttle?

murda-c · 12-05-2008, 10:38 AM

I thought bovs were more for combating lag than for saving turbos

racepar1 · 12-05-2008, 10:50 AM

BOV's are lame unless they are re-circulated. They sound soooooo effin annoying. They are also not 100% necessary, especially if you have a cheap ass t-25 or t-28.

murda-c · 12-05-2008, 10:51 AM

Oili pressure:

Approximate Discharge pressure : kPa (kg/cm^2, psi)
Engine speed at idle
more than 78(0.8,11)
Engine speed at 3000 rpm
412-481 (4.2-4.9, 60-70)

EDIT: that's for a stock KA btw, i don't know about SRs or with any modifications you've done.

J ROK · 12-05-2008, 11:21 AM

wow, I barely understand what the fuck it is you just posted. just lookin for some simple numbers people see on their gauges.
thanks for tryin to help though

pinkarrowsnow · 12-05-2008, 11:28 AM

ok man i have a ka-t but might be same concept in normal terms. 18psi at idle when warm around 40psi when cruising. And as you get up in rpm's oil pressure gets higher.

murda-c · 12-05-2008, 12:32 PM

Quote:

Originally Posted by J ROK

wow, I barely understand what the fuck it is you just posted. just lookin for some simple numbers people see on their gauges.
thanks for tryin to help though

sorry i just quoted the FSM.

It says above 11psi at idle and 60-70 psi at 3000 rpm.

g6civcx · 12-05-2008, 12:58 PM

Quote:

Originally Posted by J ROK

how good or bad is it to run no bov??

The only pro I can see with throwing out the BOV is improved throttle response, and maybe cost/weight savings.

The cons would be turbo damage, but if you don't care about your turbo then a BOV is not necessary.

OBEEWON · 12-05-2008, 01:14 PM

Prove it...

Anyone that has broken a turbo by not running b.o.v. prove it to my face or your mother is a toad.

sleepy_s13 · 12-05-2008, 01:44 PM

Im at 16lbs on a t28 witn no bov, havent had any problems. ran my t25 the same way.

J ROK · 12-05-2008, 01:53 PM

awesome, im loving these responses. I feel like this whole aftermarket BOV thing is just some conspiracy to spend more money.

So now thats cleared up, can I get a few more responses to the oil press. question? what do you guys see at idle and full throttle? just wanna be safe as I start driving the car this weekend.

racepar1 · 12-05-2008, 01:58 PM

Quote:

Originally Posted by J ROK

awesome, im loving these responses. I feel like this whole aftermarket BOV thing is just some conspiracy to spend more money.

It *theoretically* could *possibly* damage the turbo over time. In reality however your turbo will almost certainly take a shit for other reasons long before not having a BOV does it. If I had an expensive turbo I would run a BOV just to be safe, but with a t25 or 28.....whatever.

OBEEWON · 12-05-2008, 02:27 PM

BOV's were invented by the man to keep us down, like bra's...

smelly240 · 12-05-2008, 02:40 PM

I get like 10psi oil pressure at idle.

murda-c · 12-05-2008, 02:40 PM

So BOVs don't help with turbo lag at all? I was lied to

g6civcx · 12-05-2008, 03:04 PM

Quote:

Originally Posted by OBEEWON

Prove it...

Anyone that has broken a turbo by not running b.o.v. prove it to my face or your mother is a toad.

Show me the money and I'll prove it to you.

Grenade180sx · 12-05-2008, 03:08 PM

Quote:

Originally Posted by murda-c

So BOVs don't help with turbo lag at all? I was lied to

err yes and no.

recir bovs help. open not so much.because your releasing all the boost that is already in the pipes therefore you must build is back up again.

g6civcx · 12-05-2008, 03:09 PM

Quote:

Originally Posted by Grenade180sx

recir bovs help

Venting pressurized air from the charged pipe to the intake pipe before the turbo helps response?

racepar1 · 12-05-2008, 03:11 PM

Quote:

Originally Posted by g6civcx

Venting pressurized air from the charged pipe to the intake pipe before the turbo helps response?

No, they were both lied to.

Z33dori · 12-05-2008, 03:15 PM

some one really needs to do an official BOV write up...

12-05-2008, 12:55 AM	#1
J ROK Zilvia Member Join Date: Jun 2007 Location: Lighthouse Point, FL Age: 40 Posts: 282 Trader Rating: (1) Feedback Score: 1 reviews	No BOV So I just got my motor running right, and there is an event in 1 week. I have a v-mount set up, with no Blow off Valve. its jsut a stock Redtop, stock turbo with basic bolt-ons. how good or bad is it to run no bov?? Also what is good oil pressure at idle? and pressure at full throttle? Thanks for any help. I hate starting new threads. __________________ AERO-K GARAGE

12-05-2008, 08:10 AM	#3
smelly240 Nissanaholic! Join Date: Oct 2006 Location: Philaburbia Age: 47 Posts: 2,137 Trader Rating: (4) Feedback Score: 4 reviews	No bov is fine on any boost. So many of us have run without it for years - no problems. I run one now just because im a ricer. __________________ HREs on a S13 - check, 6262 - check, Girlfriend.... - nope

12-05-2008, 08:42 AM	#5
240trainee Post Whore! Join Date: Jun 2003 Location: Richmond, VA Age: 38 Posts: 3,861 Trader Rating: (1) Feedback Score: 1 reviews	Yep. T25's are cheap. Only reason I run one is Disco potato turbo's aren't that cheap. and I run like 20lbs. No BOV is awesomer though. __________________ Team Pterodactyl SHARK ATTACK!!! LookoutDrift

12-05-2008, 09:21 AM	#7
Z33dori Post Whore! Join Date: Dec 2006 Location: Riverview, FL Age: 36 Posts: 5,557 Trader Rating: (12) Feedback Score: 12 reviews	bov are for ricers like me... lol i got so bored of my SSQV i even put the insertback in... lol __________________

12-05-2008, 09:34 AM	#9
kevtrinh Zilvia Junkie Join Date: May 2006 Location: Richmond,VA Posts: 370 Trader Rating: (0) Feedback Score: 0 reviews	You will be fine for this event and for many other events. __________________ Team Pterodactyl

12-05-2008, 01:14 AM	#2
TurboStrong Nissanaholic! Join Date: Jun 2008 Location: L.A Posts: 1,707 Trader Rating: (21) Feedback Score: 21 reviews	i heard it is okay if u run stock psi. i have no bov too im using a pressure surge thing.

12-05-2008, 08:32 AM	#4
ZX88 Post Whore! Join Date: Oct 2005 Location: ATX Age: 36 Posts: 2,946 Trader Rating: (8) Feedback Score: 8 reviews	no problem especially on a t25.

12-05-2008, 09:00 AM	#6
Grenade180sx Nissanaholic! Join Date: Aug 2007 Location: 909/951 Age: 37 Posts: 2,457 Trader Rating: (1) Feedback Score: 1 reviews	id worry less about compressor surge and more about smashing my car into anything that will eat that radiator

12-05-2008, 09:29 AM	#8
louisdaboois Zilvia Addict Join Date: Dec 2006 Location: LA, CA Age: 36 Posts: 851 Trader Rating: (28) Feedback Score: 28 reviews	compressor surge just sounds cooler anyway. ooof big trim turbos - bov + compressor surge = secks.

12-05-2008, 09:34 AM	#10
Z33dori Post Whore! Join Date: Dec 2006 Location: Riverview, FL Age: 36 Posts: 5,557 Trader Rating: (12) Feedback Score: 12 reviews	ex YouTube - ridox supra __________________

12-05-2008, 10:33 AM	#11
J ROK Zilvia Member Join Date: Jun 2007 Location: Lighthouse Point, FL Age: 40 Posts: 282 Trader Rating: (1) Feedback Score: 1 reviews	wow, I remember gettina a boner from that Supra back in the day, and always wondered what BOV it had. LOL thanks for the help everyone Now my second question. what is good oil pressure at idle?? and pressure at full throttle? __________________ AERO-K GARAGE

12-05-2008, 10:38 AM	#12
murda-c Post Whore! Join Date: Jan 2007 Location: Montgomery County, MD Age: 37 Posts: 3,198 Trader Rating: (1) Feedback Score: 1 reviews	I thought bovs were more for combating lag than for saving turbos __________________

12-05-2008, 10:50 AM	#13
racepar1 Post Whore! Join Date: Jul 2007 Location: Simi Valley, CA Age: 42 Posts: 9,006 Trader Rating: (106) Rides Gallery: racepar1 Feedback Score: 106 reviews	BOV's are lame unless they are re-circulated. They sound soooooo effin annoying. They are also not 100% necessary, especially if you have a cheap ass t-25 or t-28.

12-05-2008, 10:51 AM	#14
murda-c Post Whore! Join Date: Jan 2007 Location: Montgomery County, MD Age: 37 Posts: 3,198 Trader Rating: (1) Feedback Score: 1 reviews	Oili pressure: Approximate Discharge pressure : kPa (kg/cm^2, psi) Engine speed at idle more than 78(0.8,11) Engine speed at 3000 rpm 412-481 (4.2-4.9, 60-70) EDIT: that's for a stock KA btw, i don't know about SRs or with any modifications you've done. __________________

12-05-2008, 11:21 AM	#15
J ROK Zilvia Member Join Date: Jun 2007 Location: Lighthouse Point, FL Age: 40 Posts: 282 Trader Rating: (1) Feedback Score: 1 reviews	wow, I barely understand what the fuck it is you just posted. just lookin for some simple numbers people see on their gauges. thanks for tryin to help though __________________ AERO-K GARAGE

12-05-2008, 11:28 AM	#16
pinkarrowsnow Zilvia Addict Join Date: Feb 2007 Location: NJ Posts: 639 Trader Rating: (2) Feedback Score: 2 reviews	ok man i have a ka-t but might be same concept in normal terms. 18psi at idle when warm around 40psi when cruising. And as you get up in rpm's oil pressure gets higher. __________________ http://allies-drift.blogspot.com/

12-05-2008, 01:14 PM	#19
OBEEWON Post Whore! Join Date: Feb 2006 Location: Hightened State of Emergency Posts: 6,054 Trader Rating: (9) Feedback Score: 9 reviews	Prove it... Anyone that has broken a turbo by not running b.o.v. prove it to my face or your mother is a toad. __________________

12-05-2008, 01:44 PM	#20
sleepy_s13 Zilvia Junkie Join Date: May 2006 Location: West Covina Age: 38 Posts: 569 Trader Rating: (1) Feedback Score: 1 reviews	Im at 16lbs on a t28 witn no bov, havent had any problems. ran my t25 the same way. __________________ $K:\pics\Cars\new sig bridge copy.jpg$

12-05-2008, 01:53 PM	#21
J ROK Zilvia Member Join Date: Jun 2007 Location: Lighthouse Point, FL Age: 40 Posts: 282 Trader Rating: (1) Feedback Score: 1 reviews	awesome, im loving these responses. I feel like this whole aftermarket BOV thing is just some conspiracy to spend more money. So now thats cleared up, can I get a few more responses to the oil press. question? what do you guys see at idle and full throttle? just wanna be safe as I start driving the car this weekend. __________________ AERO-K GARAGE

12-05-2008, 02:27 PM	#23
OBEEWON Post Whore! Join Date: Feb 2006 Location: Hightened State of Emergency Posts: 6,054 Trader Rating: (9) Feedback Score: 9 reviews	BOV's were invented by the man to keep us down, like bra's... __________________

12-05-2008, 02:40 PM	#24
smelly240 Nissanaholic! Join Date: Oct 2006 Location: Philaburbia Age: 47 Posts: 2,137 Trader Rating: (4) Feedback Score: 4 reviews	I get like 10psi oil pressure at idle. __________________ HREs on a S13 - check, 6262 - check, Girlfriend.... - nope

12-05-2008, 03:15 PM	#30
Z33dori Post Whore! Join Date: Dec 2006 Location: Riverview, FL Age: 36 Posts: 5,557 Trader Rating: (12) Feedback Score: 12 reviews	some one really needs to do an official BOV write up... __________________