Here is my Vortech V3 Si supercharged Outback.
It currently has a 2.62" SC pulley and pushing about 260-270 awhp, we're running the Vortech at about 44k rpm. I am actually looking for assistance in be able to run the Vortech right up to 52k rpm (without slipping!!!!) so we can squeeze some more power out of it.
My crank pulley is only 5.25" and this is complicated by the fact that it's a dual belt pulley - the inner pulley goes to the AC and the outer 5 rib goes to the alternator, PS and SC.
My initial thought is to try to take apart the stock pulley and put a 7-8" crank pulley on the outside, so I can run a large 3.5" SC pulley. Any thoughts? I need to consider clearance for the crank pulley too....
More please!
It looks like a 1999-2004 Outback? Just a stock NA EJ or has it been built to cope with the extra power? Are you running an open source tune or a stand alone ECU? Looks like a nice clean DIY install.
Adam
Is a cogged belt an option? I have one on my vortech jetski.
Sean
smokeysevin said:
Is a cogged belt an option? I have one on my vortech jetski.
Sean
Anything other than the 5 rib belt will require some creative customization that I haven't figured out how to implement.
Subaru crank pulley is a little odd.. with 2 separate belts in 1 pulley.
https://www.grimmspeed.com/lightweight-crank-pulley-subaru/?sku=095015BK&gclid=CJPy6NP81eICFUVMDQodQgoEIw
The outer 5 rib pulley is what drives the SC.
adam525i said:
More please!
It looks like a 1999-2004 Outback? Just a stock NA EJ or has it been built to cope with the extra power? Are you running an open source tune or a stand alone ECU? Looks like a nice clean DIY install.
Adam
Thanks! It is a stock 2005 outback. The motor is stock until I need more, hopefully I will get there, right now only 12 psi. It runs the stock ECU with EcuFlash tune. I am hoping for getting into the low 300s AWHP or more. If I can figure out belt slip without going too crazy, I'll probably consider a billet impeller and run it as high as I can.
