I used have the greddy type s with the spring mod and 272s. The car had mad idle issues. So I put the smaller spring back in and the idle was fixed. Now the only thing is the car stumbles/stalls when in stop and go traffic But my idle is fixed
Vote to which BOV you use and if you have any problems with it. People with upgraded cams only please

 

Is this after getting the car tuned for the cams? I know you can get a lopey idle with cams, but ecu tuning has generally proven to minimize that.

 

hmm, i have never thought anything about the Single spring mod causing my sparatic idle with the 272's.

 

I would love to hear more input about this.... btw on a side note, do you have a clip of your car with the 272's?

 

Forge DV, straight 272's ... no issues at all

 

Stock DV w/ 272's and runs perfect.

 

that is the cause. Put the other spring in for a test I bet your idle will not be so sparatic.... just loppy

 

I'm going to try the stock BOV and see how it runs.

 

Stock bov and 272in/ex, and runs like a champ.

 

I have the GFB (FX-valve) B-DOV from LLtek which recirculates and vents in the atmosphere as well. I've seen other EVO owners adjust their Divertor slash blow off valve if that's what they have to recirculate more so your car doesn't die at idle when your running HKS 272's or 264's. Also it helps when your spooling as well, and that's what Audi's and VW's use. Boost doesn't drop as quick and it extends the life of the turbo as well, but I'm sure all you guys new all of this.

 

^^ the greddy can be run in full recirc mode so i dont think that is the problem...unless these guys are venting to atmos which i doubt

i will be getting cams sometime in the near future...and am currently running the typeS...i would like to see if anyone has a solution for this problem or if i should just go ahead and start looking for another dv/bov

 

HKS SSQV VTA and 272's. -4 int. -1.5 exh. No problems.