pop off valve... what is it?
#1
proper motoring
Thread Starter
pop off valve... what is it?
i've heard of pop-off valves (once or twice on this forum) and it sounds like an excellent way to avoid any boost spikes. i'm not saying to use it as a boost controller, just say... if i'm going to run at 11-12psi, i could adjust the pop-off for 13 that way, if anything happened and for some reason the stocker twins decided to push 20psi towards my intake, the pop-off would really the excess pressure... kinda like a fart i guess instead of blowing my engine. am i following the idea correctly here? anyone know of any good ones available on the market?
#3
proper motoring
Thread Starter
ah... yeah i didn't really think about the sensitivity thing too well. i wasn't sure if i understood what they were used for. basically, was making sure i got the idea and if anyone would recommend one, or not using one at all. i'm pretty sure i'll be able to run 12psi on the stock fuel inj. with 95% duty but don't wanna push it that far. will see about setting it around 11.5 and having the pop off go at 11.75ish. GReddy you say though, anywhere i can find that for sale?
#4
Ee / Cpe
Join Date: Jan 2003
Location: Gaithersburg, MD / WVU
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That is the idea behind a pop off valve. I woulldent trust that over a nice boost gauge with a big red light though. But i guess some will say every little bit helps.
edit: just noticed the double post
edit: just noticed the double post
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#8
Racing Rotary Since 1983
iTrader: (6)
i bought the greddy pop off after hearing about someone grenading their engine from a boost spike. the item is well built but after further investigation i decided not to use it. they can leak boost and pop off at varied pressures i am told. most have settled on adjusting their maps so as to run real rich on boost spikes.
howard coleman
howard coleman
#10
DRFTRX7
Check this link out, a little explanation of it:
http://www.rx7.com/cgi-local/3catalog.cgi?cat=9&part=4
http://www.rx7.com/cgi-local/3catalog.cgi?cat=9&part=4
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