I have an 87 turbo supra and I just wanted to know, is there a stock bypass valve or bov on the 7mgte cause I know wen I hitting boost n let off I hear air being released but my ? Is from where is it coming from?
stock bypass valve or bov????
- Thread starter Sassan
- Start date
There is indeed a BOV fitted as standard. Follow the vacuum line on the left hand side of the 3000 pipe and you'll see it, plugged into the Accordion hose. If you're looking to replace it, make sure you get a recirculating type, rather than one that dumps to atmosphere. The injection system uses an airflow meter in order to 'know' how much air is in the system. When you dump the excess compressed metered air to atmosphere, it is taken out of the system, but the ECU has no way of knowing this, and keeps injecting the fuel as if the air was there, thereby causing you to run pig rich for a second or two.
The recirculating type dumps the excess metered air back into the turbocharger inlet AFTER the airflow meter, to be compressed all over again.
The recirculating type dumps the excess metered air back into the turbocharger inlet AFTER the airflow meter, to be compressed all over again.
Ok thanks found it. I know the kit comes with a bov. But I dnt think its a recirk kind. And wen I do my kit I'm assuming just put the new bov in same place as the bypass or wat would be the best way to do it so as not to harm my engine?
See if you can get a recirc fitting for the BOV.
I have an HK$ SSQV and bought the recirc fitting for it. Well worthwhile, IMO, as it prevents stalling and those annoying puffs of black smoke.
It also stops the high pitched whistle when the BOV lets go (Though for me, I find this a good thing, as that BOV sound seems to me to be somewhat pretentious.)
I have an HK$ SSQV and bought the recirc fitting for it. Well worthwhile, IMO, as it prevents stalling and those annoying puffs of black smoke.
It also stops the high pitched whistle when the BOV lets go (Though for me, I find this a good thing, as that BOV sound seems to me to be somewhat pretentious.)