v-mounted intercooler

[soardrft]

just a question i am wondering about. if you v-mount (top mount, whatever you may call it) an intercooler do you still need the bov? i know what a bov is used for, however there wouldn't be a lot of room to add especially for us 1jz guys. just would like to know if a person can avoid getting a bov if the was the setup?

[btm7687]

If you know what a blow off valve does then why ask if you can avoid it? The position of the intercooler as far as I know won't prevent the turbo from spinning and compressing air when you let off the throttle...you still have to vent it somewhere...

[Dj_Diablo]

You're not very clear on what position you want the intercooler in. You first said v-mount, and then said top-mount.

This is a v-mount:
http://img.photobucket.com/albums/v74/andyhardy/H707%20DEG/Pro%20Alloy/intfiefitted.jpg
^^ That is typically used for high horespower applications and provides better cooling than a horizontal intercooler.

This is a top-mount:
http://www.flatironstuning.com/shop/images/product/icon/5.jpg
^^ Not a good idea

[Dramon]

That's still a front mount homie.

V-mounts are where if you look at a sideways cutout of the engine bay from the side of the car the IC and rad form a sideways V.

Honestly with our cars...I don't know if we even really have room for a V-Mount.

[Brown Duckz]

you still have to vent it somewhere...Not always true, Grand Nationals [3.8] have been running without blow-off-valves since the 80's. Compressor surge is there friend :nuts:

[btm7687]

Ok...but we aren't talking about Grand Nationals...not to mention, I know, I could have gone into ball bearing turbos and such and all of the technology now that doesn't necessarily require a blow off valve under *certain* situations.

[Brown Duckz]

We may not be talking about Grand Nationals, but we are talking about turbos, which is what my point referred to.

[Idrewfelix]

Stop being a smart ass brownduck, running a turbo system without a bov is stupid, just because grand national turbos can take the compression surge doesnt mean they're reliable. Personally I think anyone with an aftermarket system and a turbo making decent power should have BOV no matter what. It's saving the turbo from pre-mature failure.

[Brown Duckz]

Stop being a smart ass brownduck, running a turbo system without a bov is stupid, just because grand national turbos can take the compression surge doesnt mean they're reliable. Personally I think anyone with an aftermarket system and a turbo making decent power should have BOV no matter what. It's saving the turbo from pre-mature failure.I'm not being a smart ass, I'm just being knowledgeable. Not running a bov is only stupid to the ricers...... :stickpoke

[Dramon]

z31 turbos didnt come with bovs either.

[Dj_Diablo]

If they didn't come with a bov, they probably came with some sort of a bypass valve.

[soardrft]

ok. after doing some small painful research i found that people don't have to have bov's unless they want to protect their investments (turbo). now as for the location of a bov on a v-mount/top mount can vary, however it does effect how clean the setup will look. i do know the difference between a v-mount and top mount, but if you seen both cars next to each other you will see the difference is the location of the motor. the intercooler is basically up top. thanks for the pics of the setups. i asked the question because i am noticing more and more cars not using the bov (and they are not grand nationals). i was just curious if anyone has taken the time to do this besides a soarer in japan with a rb26 motor.

[Ravan17]

where do u see ppl not using BOV's? what are u talking about? i dont understand.....even if ure turbo can take the compressor surge, why do it? it slows the turbo back down to 0 psi, how do i know? my HKS SSQV stopped working after 1 days, i have a t61 percision turbo on my NA-t setup running 15psi, during every shift my gauge would drop down just above the 0 and the start to build back up, i raced my cuzin on his 94 auto TT BPU, when my blow-off was workin i walked him by 3 cars, u could see the difference when it wasnt, he would pull up to me every time i shifted.....i duno if im wrong or wat not and i honestly dont care, but , i have yet to see a car without some sort of either blowoff valve or bypass valve, i mean i gues thats posible if ure runing like 4 psi.....?

[Brown Duckz]

where do u see ppl not using BOV's? what are u talking about? i dont understand.....even if ure turbo can take the compressor surge, why do it?

Grand Nationals do it everyday..... some in the 8's - no blow off valve. Do you need videos?

i duno if im wrong or wat not and i honestly dont careThat would be the first problem..................

[shaman]

Remember that transmissions and boost levels play a factor here too. With an auto tranny, you could run all day without a BOV because you can leave your foot on the gas whenever the tranny shifts. As far as I know, all GN’s are autos, please correct me if I am wrong

The z31’s had a turbo that would top out at 12 PSI. They also didn’t have IC’s. I am sure that that makes the as good as cars with IC’s right?

Next, a GN that runs 8’s is different than a DD. First, anything that runs 8’s has a big budget. Anything that runs 8’s should have a nice 3 or 4 speed auto with a stall, and a 2-step. A track car has 2.25 settings. Idle, just off idle(neither of which should build boost), and WOT. WOT, with an auto, means the throttle plate never closes, therefore, there is no compressor surge, until the driver lets off.


I am with Lavan on this one, whether an 8 sec Buick built to run without a BOV can run w/o a BOV doesn’t hold up against should I have a BOV.

Simple facts

BOV – $25 - a few hundred $
Turbo - $100 for junkyard – the sky’s the limit

You can buy one of each and play it safe, or do what the big slicked, is that a curve coming oh shit 8 sec GN’s do.

My suggestion. Don’t skimp unless you only plan on making less than 10 PSI on an auto.

[Idrewfelix]

Hey brownduck, how about you run a turbo kit without a BOV and prove your all mighty grand national point.

[DTSupra30]

I hope your not gonna bee drifting with your v mount set up :stickpoke :rolleyes:

Matt

[Brown Duckz]

Hey brownduck, how about you run a turbo kit without a BOV and prove your all mighty grand national point.My friend's 95 SC300 with the BL67 kit currently is running no blow off valve................. is that good enough for you? You know.... you really are an ass towards me everywhere I go, and currently I don't see where you have shit on me.

[Idrewfelix]

My friend's 95 SC300 with the BL67 kit currently is running no blow off valve................. is that good enough for you? You know.... you really are an ass towards me everywhere I go, and currently I don't see where you have shit on me.

Im not being as ass towards you, its the fact that you blabber about all these facts without answering the question straight out. How about actually answering a question instead of telling them useless facts that someone just might listen to and take in and ruin their motor.

Oh yeah, and the fact that you were a troll on SF for how long?

[Brown Duckz]

Im not being as ass towards you, its the fact that you blabber about all these facts without answering the question straight out. How about actually answering a question instead of telling them useless facts that someone just might listen to and take in and ruin their motor.

Oh yeah, and the fact that you were a troll on SF for how long?This is a discussion board, and that's what has happened in this thread.. DISCUSSION. If you think I'm wrong, prove me wrong, otherwise just shut the fuck up. As far as being a troll on Supra Forums.... the only thing I can even possibly think that you would be referring to was when me and Kirk had a run in with each other. Other than that my time on Supra Forums has been good..... I didn't get one of the "newbie" entries such as the 15 and 16 year old kids that are getting Supras. If you are trying to put me down to that level then that is your opinion and yours alone. I'd be willing to bet that a majority of the members on this board wouldn't consider me as the way you're "describing" me. I'm done with this........ either drop it and we can forget about it, or disregard every post I make from here on out.

[ATL-SC]

Just food for thought

hey guys here is some thing else to consider. rally cars run a very tight spring so that they can actualy build a small surge. this is so that they have instant throttle responce once back on the gass. but this idea is impracticle on the street, just for safety.
also the reason for a v mount is to get better cooling and better throttle responce. but the small amount of pipeing leads to more compressor surge. and as we have turbo and totaly negates the use of a v-mount.
and just so you all know the z31 did have IC thats why the turbo cars have 3 small slits in the lower corner of the bumper. i belive they are small bar and plate IC hence the small size.

[Brown Duckz]

I'm not at all trying to say the absence of a blow off valve is a good thing, just put it out there for reference.

[Idrewfelix]

This is a discussion board, and that's what has happened in this thread.. DISCUSSION. If you think I'm wrong, prove me wrong, otherwise just shut the fuck up. As far as being a troll on Supra Forums.... the only thing I can even possibly think that you would be referring to was when me and Kirk had a run in with each other. Other than that my time on Supra Forums has been good..... I didn't get one of the "newbie" entries such as the 15 and 16 year old kids that are getting Supras. If you are trying to put me down to that level then that is your opinion and yours alone. I'd be willing to bet that a majority of the members on this board wouldn't consider me as the way you're "describing" me. I'm done with this........ either drop it and we can forget about it, or disregard every post I make from here on out.

Prove you wrong? Its common sense to run a BOV on an aftermarket turbo system. Isnt that enough proof? The reason why kirk had a problem with you is the same reason why im having a problem with you.
Unless you want to ruin your turbo pre-maturely. Lets stick to information that might be helpful.

Im done with this as well. I will drop it and quite arguing. But lets keep in mind that as a moderator, you are supposed to distribute useful knowledgable facts instead of useless grandnational BOV bullshit to create a discussion.

[Idrewfelix]

I'm not at all trying to say the absence of a blow off valve is a good thing, just put it out there for reference.

And there, you proved it to yourself. You should have posted that in the beginning instead of mentioning that GNs run without bovs.

And BOVs isnt exactly ricer either. Unless you consider supras, 300zx, porsche, saabs, volvos, etc etc all ricers since they all have bov's.

Now atmopsheric bov's like T-RFL is ricer. I agree with that.

[Brown Duckz]

And there, you proved it to yourself. You should have posted that in the beginning instead of mentioning that GNs run without bovs.You jumped way ahead of me. The information I posted was not intended to "knowledge" the person about his particular na-t setup. I was simply making a statement. Take it for what it's worth... as far as I'm concerned, nothing I said was wrong. It's over...... :grouphug:

[SupaSupraSE]

And there, you proved it to yourself. You should have posted that in the beginning instead of mentioning that GNs run without bovs.

And BOVs isnt exactly ricer either. Unless you consider supras, 300zx, porsche, saabs, volvos, etc etc all ricers since they all have bov's.

Now atmopsheric bov's like T-RFL is ricer. I agree with that.

Take it easy man, Brown Duckz wasn't trying to get anything started, lets try and avoid conflict and just express our opinions and views without insult. :love:

I can see the point of view both of you are trying to make, and both make sense and work. No need to fight with each other over it.

[Last5Spd]

idrewfelix....

You are making an ass of yourself. I dont see whats the need to go crazy on him. Just take a chill pill or join some other forum..