b.o.v off the intake mani. or turbo?witch is better?
#1
b.o.v off the intake mani. or turbo?witch is better?
Well, may seem stupid for some of you miata freaks!!! lol... but i have had my b.o.v on the hot side of my turbo for quite some time now....and have been told to put it off my intake manifold (cold side) what would be the benefit?
should make better sence now. thanks
should make better sence now. thanks
Last edited by zoomnick; 02-25-2008 at 08:36 PM.
#3
To me it seems keeping it before your intercooler would be better for the engine. Every time it opens, all that hot air that dumps out is NOT going through your intercooler. That helps keep the IC cooler, and when you do open the throttle, the air it's gonna get will be cooler too. Granted, some will argue this is all insignificant, but it does exist. Some will point out the BOV will last longer on the intake side as it will see cooler air and indeed that is the case. My BOV will be on the hotside of my SC setup.
PS Some capital letter, periods, commas, etc will go a long way. Most that read what you wrote will just ignore you and not answer your question.
PS Some capital letter, periods, commas, etc will go a long way. Most that read what you wrote will just ignore you and not answer your question.
#4
Boost Czar
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im pretty sure he's talking about the vacuum line....so tee-ing off the turbo line would be pointless and it wouldn't allow the bov to open properly. you need vacuum to open the valve, no vacuum at the turbo.
#9
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Can we start banning people who can't post in some sort of English comprehension of a 3rd grader on this board? I'm not English teacher, but FFS! (For ***** Sake!) my girlfriend who speaks English as her 3rd learned language is easier to understand on her worst day than half these internet dweebs!
#10
Are you talking about BOV placement, or the vacuum line?
I always put my bov between the T-Body and Intercooler with the vacuum line going to the intake manifold.
My FMII has it between the Turbo and Intercooler.
Hope this makes sense... I'd hate to get banned
Here is the BOV placement on my old car with a very old setup. (I forgot I ran a Starion IC for a while)
I always put my bov between the T-Body and Intercooler with the vacuum line going to the intake manifold.
My FMII has it between the Turbo and Intercooler.
Hope this makes sense... I'd hate to get banned
Here is the BOV placement on my old car with a very old setup. (I forgot I ran a Starion IC for a while)
Last edited by M-Tuned; 02-25-2008 at 09:07 PM.
#13
i always believed that the BOV needs to be in front of the throttle body to release the pressure more efficiently when the throttle closes. but don't take my word for it
https://www.miataturbo.net/forum/sho...=BOV+placement
this may help.
already had a discussion over it.
https://www.miataturbo.net/forum/sho...=BOV+placement
this may help.
already had a discussion over it.
#15
i always believed that the BOV needs to be in front of the throttle body to release the pressure more efficiently when the throttle closes. but don't take my word for it
https://www.miataturbo.net/forum/sho...=BOV+placement
this may help.
already had a discussion over it.
https://www.miataturbo.net/forum/sho...=BOV+placement
this may help.
already had a discussion over it.
#18
The main way in which it matters is the relationship between spring tension and pressure drop. If you have some junkyard plastic valve with an extremely light cracking pressure you will probably want to put the valve after the IC. Or conversely if the valve has a lot of spring tension place it before the intercooler.
#20
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i agree with Pat on the venting before IC so the IC isn't warming up for no reason when it's venting excess boost. However, with the BOV before the IC, all the pressurized air after the BOV has to travel backward to vent. back through the IC piping and the IC. air does have mass so you're creating an air spring. this theoretically should make it harder for air to get back to the TB once the BOV is closed since it'd first have to overcome the inertia of the backward flowing air. is it measurable? prolly not.
How bout 1 before the IC and 1 after, right before the TB? would solve both concerns, no?
edit: ****, someone just said that.
How bout 1 before the IC and 1 after, right before the TB? would solve both concerns, no?
edit: ****, someone just said that.