this mod should help reduce global warming right?

 

Actually you want the bov as close to the throttle body as possible. You get pressure drop thru your IC system and that can contribute to your bov leaking.

If your turbos are putting out 15psi and your getting 13psi at the engine then you have 2psi pushing your bov open.

STEPHEN

 

Supra and 300ZX people can tend to be a little......excessive at times. Seems to be a side affect of the horsepower and carried away egos.

You don't need twin BOV's. Adjust the valve spring if you need to. If you're running that much boost, you have the option of getting a racing BOV to handle it. Having two BOVs in different places can effect the efficiency of one or both of the valves. Stock BOV's are linked to the Y-pipe. Some people, especially those with lightweight flywheels, like to have the BOVs welded to intake piping closer to the UIM so that pressure right at the throttle body is released when the rpms drop rapidly. I would say your best bet is to have it at a balanced location. Stock turbo setup- keep it on the y-pipe hose. Single set up- weld it to an intake pipe. The only suggestion I'd make for those people who are welding closer to the throttle body- make sure its not past the bend in the intake elbow or opening of the valve will cause turbulence right around the throttle body. Probably wont hurt anything, but might make a minor difference in your throttle response.

 

i believe for any inline 4 or 6 which have the turbine or turbines on ONE side of the engine, ONE blow off valve is good enough. The reason that a 300zx uses TWO which i've been saying over and over in this post is because the turbines are on TWO different sides of the engine, AND has TWO THROTTLE BODIES. When you look for the factory bypass valves, you will find TWO.

If you ever noticed 300zx twin turbo blow off valve kits usually come in PAIRS, not ONE.

So for a 300zx, NOT supra, NOT rx7, etc. etc. two blow off valves are beneficial, because they release pressure from BOTH sides of the engine.

I'm pretty sure about this....but i am human and humans make errors...so feel free to correct me if i am mistaken.

 

I believe this pic proves you're right about the ZX:

 

That's pretty clean! Nice!

 

Yeah, my bad. You're right about the ZX layout. 2JZ-GTE's layout with the inline 6 is set so it doesn't have to be split like the 300ZX. That makes perfect sense though.

 

BAM!..lol....and i thought my engine bay was stuffed?!?

 

hey SPO.. yea its 4 inches away from the throttle body well thats what my friends keeps telling me.. apperently he claims to work for pettit racing.. but again what does he know.. goes by the name of luis.. ( thanks for teachi g me this one. )

 

oh btw.. i am going with two.. one at the turbo's near the compressor.. and one on the throttle body.