Supercharger: Crank vs top?
Supercharger: Crank vs top?
Hi all,
I've read a bit about SC pulley sizes, materials, failures etc... I am wondering if there is an advantage over a crank pulley (bigger) vs SC pulley (smaller). Are people doing the SC pulley for rotational weight savings or cost? Was the EC crank pulley any good or were there failures like the upper one?
Thanks!
I've read a bit about SC pulley sizes, materials, failures etc... I am wondering if there is an advantage over a crank pulley (bigger) vs SC pulley (smaller). Are people doing the SC pulley for rotational weight savings or cost? Was the EC crank pulley any good or were there failures like the upper one?
Thanks!
Re: Supercharger: Crank vs top?
Yes.....to all those questions..... there is an advantage to a crank over a pulley on HP, but very little and you spin the other pulleys faster as well unless you do a kit re-sizing the other pulleys as well. Yes there is a saving on weight but very little. Advantage is you don't spin the other pulleys faster. Cost is about the same. EC had failures early on with the pulleys....
Re: Supercharger: Crank vs top?
Yes.....to all those questions..... there is an advantage to a crank over a pulley on HP, but very little and you spin the other pulleys faster as well unless you do a kit re-sizing the other pulleys as well. Yes there is a saving on weight but very little. Advantage is you don't spin the other pulleys faster. Cost is about the same. EC had failures early on with the pulleys....
The kit I am looking at has:
Eurocharged 181mm Crank Pulley
Water Pump Pulley
Idler Pulley with 19,000 RPM Bearing
OEM Crank Bolt
Cost aside would you go top end or bottom end? (all other supporting factors taken care of prior - IE CAI, AFR, Tune, etc...)
Thanks
Re: Supercharger: Crank vs top?
The upper would be 65 vs 62 equivalent for the lower.
I guess I'm trying to figure out (boost level and cost aside) which is the better solution. If the new 65mm pullies don't grenade, it would be _easier_ to swap that.
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