So the only solution for stalling is an EMS? I've installed the Greddy Type-S BOV and I had problems from day 1...and it was recirculating... Then I pulled out one spring and it whistled like a ****in' bird..

 

i'll be going with the HyperBoost when it is available...

 

yes to solve the stalling issue u need some way to lean out the low RPM's when the BOV falls to idle. The air tha tthe ECU has calibrated for is now gone and the fuel is still there, so you need to lean that portion out.

 

let me know how that works out for ya....is it recirc or VTA????

 

It would be nice if the SAFC-II could handle that. Which EMS would you recommend,and are there any ECU Flash companies that can resolve this problem w/ just a flash?

 

AFC can, there is a setting for low idle or sometihng i'm not exactly sure what it's called if no one can answer it quickly i'll go fiddle though my AFC and find it.

 

I know a BOV is pretty much rice but if your going to have turbo on a car like this its almost a necessity hahaha

 

I know a BOV is pretty much rice but if your going to have turbo on a car like this its almost a necessity hahaha

 

Forge Recirc BOV is working great for me.... knock on plastic Boost comes on a bit earlier now and holds steady longer.....kinda like Viagra doh! Sorry bad joke.

 

We have supplied many of the Forge Bovs worldwide with no problems , we supply both the Bovs and the recirc / diverter valves to Ralliart in several countries , all Forge valves are serviceable and guaranteed for life .

The Forge Bov and recir valves are direct OEM replacements that need no modifications or fitting kits

 

I have the Turbo XS-RFL and i have no problem what so ever...If your car begins to have some surge problems...In the kit, they supply these spacers that look like giant washers, which are used to tighten the spring inside the BOV...over all, installation is very easy, also tightening the spring is also easy...

-John

 

I had the recirculating Forge valve in my EVO. I sold it. No matter what I did it would flutter,bad!! I tried all the springs-flutter-different positions-nothing but flutter!!! Maybe it works for some guys, not for me or a fellow EVO owner. This valve flutters at any slight lift off. The stock valve works 100 times better than the forge, the only bad thing is that it will not hold boost at high levels. My 2 cents.

 

I don't understand on a MAF equipped car how people can say they are the same. A MAF equipped car with a VTA can not be "tuned" to offset entirely the inherent disadvantage it has. Since the air coming in is "counted", the VTA vents counted air out of the system. There is no advantage to a VTA, unless you are part of the 2f2f crowd. Now if you switch to speed density, then you would be correct that it does not matter. But for a stock Evo, there is no reason not to use a recirc.

Incidentally, I use a 1G, which cost less than half of something like a Forge, does not flutter, and has been tested to hold way more boost than I will ever run.