Nikoro

Hello guys. Is there any chance a NON recirculation blown off valve work well @ evo ix with stock ECU and MAF ? Like tial Q

Abacus

iTrader: (9)

For a MAF car you will want it recirculated.

IMO if you have a small/fast spooling turbo a stock slightly crushed IX Bov works well until around 500-530whp.

Nikoro

I am with stock turbo in my ix but I can't make my tial qrj bov work without surge

Abacus

iTrader: (9)

You may want to try a lighter spring . If you are going to keep the Tial for your goals.

http://tialsport.com/documents/w3_tial_qqr_sp.pdf

Stock or small turbo's spool up quickly and can surge. You can also try to lower the WGDC table, loosen or lower the waste gate actuator. You could also change your driving style to avoid part throttle surge.

Nikoro

I got tial qrj with-3 psi spring. I think the problem might me elsewhere. Like that on 5th and 6th gear the car has too much boost and the throttle doesn't open that much so the air goes back to turbo

LetsGetThisDone

iTrader: (1)

The Tial QRJ flutters on the stock turbo. It's not fixable, the BOV can't hand a turbo that rides the surge line. The -1.5psi spring helps, but ultimately the solution is to ditch that BOV with a stock or stock appearing turbo.

Nikoro

well you are right but how can it be possible the car to surge with normal throttle speed? it does it only on 5th-6th gear when i pull on low rpms like 2800-3000rpm. if the car has 5000 or over it works well. Even if i pull full throttle from low rpms it doesnt flutter. it surges only when i grow throttle from low rps at 5th - 6th speed