So,I read in a magazine regarding the MKII MR2 turbos,and they said to replace the factory BOV with another factory instead of an aftermarket.It also said to come here to find out why.WHY?
^^^What he said. ...and unless you get a VPC or eliminate the AFM via some other method (standalone) ...you will lose performance and blow black smoke between shifts because you will be venting metered air.billwot said:No aftermarket valve will outperform the OEM Toyota valve!!!
There is absolutely NO REASON to replace the OEM valve, unless you just want to hear the Ppsshhttt.
but that psssht sound is minimal if at all if recirculated which defeats the purpose of getting a BOV. And if he doesn't recirculate, than you'll run into the same problems as all the other BOV's.DriftR55 said:Toyota Bypass Valve is the best but if you want something that performs 2nd best to this and gives out the pssssshht sound, get the HKS SSQV MR2 Specific 91-95... :thumbup
HKS does have a recirculation valve adapter... after i found out about the running rich issue of having a BOV, i purchased the recirculation valve adapter for about $12 + tax (& + s/h?)... no more pssshhhtttt noise but i have a nice shiny HKS SSQV in the engine bay...Boz said:but that psssht sound is minimal if at all if recirculated which defeats the purpose of getting a BOV. And if he doesn't recirculate, than you'll run into the same problems as all the other BOV's.
To the OP, the reason why people refer to an hks ssqv as 2nd best is because it's design is essentially the stock design, dual chamber amd pressure loaded.