Monsterbox

iTrader: (6)

I pulled my turbos 2 years ago and thought I ported the wastegate decently. I was running DP/MP/Stock Catback. Cured all the boost creep on the M/P.

Installed my new Blitz Nur-Spec today. It sounds AMAZING. However, my car is creeping like crazy. With my Profec B Spec II turned off the car starts out at 8psi and ends up holding 11 and then between 7000-8000rpm it hits 13psi!!!!

I can't imagine this in cold weather.


WTF, I ported the W/G a decent amount and it feels like I did absolutely nothing, but the HP increase/Spoolage makes me not want to add restriction.



Should I pull the turbos and try to port some more? I thought I had gone as far as possible...I guess I should try rounding the edges out I really don't know what else to do. Is a bigger flapper always necessary at this point? I thought many people ran fine with the regular flapper.

staticguitar313

iTrader: (2)

I think it has more to do with the fact that the flapper literally has no room to travel. I suppose the only thing you really can do is use a bigger flapper (I've heard the door from the precontrol is bigger) and maybe hog out a little bit of the area where the flapper hits the wall and the back of the flapper itself.

My problem happens to be the opposite of yours at this point.