Cool thanks will definitely keep that in mind. I wonder what makes people have such different boost levels with the same pulley size. @ 4.75 measured 9psi @4.5 on my boost gauge saw 11psi both at 7,500 rpm. I’m kind of on track to make 13ish with 4.25 pulley. But you ended up making 17psi with a 4.1?? It seems you have a 2016 as well.
Biggest thing is RPM from 7,500 to 8,000 approx 3 additional lbs. Also lots of factors affect boost numbers. Mods, weather conditions, tune, etc.
As you approach max blower rpm/efficiency it's much faster climb.
no clue. slept too much since then.
You don't want green, get a RPM belt and be done with it. Green is like a rubber band, RPM will maintain length much more consistently and stroke the tensioner alot less.
With words of caution against over tightening the rpm since they don’t stretch much.
I’ve tried all 3 styles and definitely understand the differences. After your wrap comment I agree stage 2 seems like almost 75% pulley wrap. I may try a typical belt first at fractions of the cost and adjust belts from there if need be. The less amount of stress I can keep off the crank and still maintain boost without slip is where I’ll go. Thanks for all the input
Yep, moderate tension is ideal.
What belt would you recommend and is this still safe without overspinning ?
K080655RPM. Safe? Your making twice the power the stock engine was engineered for. I'd be more worried about it vs slightly overspinning the blower...
