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Steve Tinker · 04-26-2010, 01:15 AM

Bobiam,
I can't comment on the OP's choice of pulley, but I fitted the Raby pulley 3 months ago and its not the HP increase (which according to the graph is minimal), but the torque increase from low revs that has impressed me. Yes, you can definately feel it in the seat of the pants, especially from 1,500 - 5,000 rpm, after that it academic....
As an additional bonus, the cabin is much quieter due to lower accessory rotational noise....

04-26-2010, 01:15 AM	#21
Steve Tinker Registered User Join Date: Dec 2008 Location: Queensland, Australia Posts: 1,522	Bobiam, I can't comment on the OP's choice of pulley, but I fitted the Raby pulley 3 months ago and its not the HP increase (which according to the graph is minimal), but the torque increase from low revs that has impressed me. Yes, you can definately feel it in the seat of the pants, especially from 1,500 - 5,000 rpm, after that it academic.... As an additional bonus, the cabin is much quieter due to lower accessory rotational noise.... __________________ 2001 Boxster S (triple black). Sleeping easier with LN Engineering/Flat 6 IMS upgrade, low temp thermostat & underspeed pulley. 2001 MV Agusta F4.