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Message: [QUOTE="superpsd, post: 1340770, member: 15821"] I have been turning an adapter on one of my lathes to piggy back a 9.55" pulley on the crank for the blower to have its own pulley. The ratio would go from just under 10,000 blower rpm to 13,500 rpm. There is also a company that can drive these blowers 30% faster with an aftermarket gearset but they are not cheap. Trying not to go that route. To spin 19,000 rpm @ 3400 you would need to drive the 2.4" pulley with a custom piggy back 13.5" pulley. That's a big pulley. For now the setup works but I have a few things that need to be improved upon. Keep in mind that the faster you spin a blower at higher pressure ratios the effeciency starts to drop off and you start to create a lot more heated air. The TVS is far more effecient than the older generations but once you spin them high enough they will still start to leave the sweet area of the map. Keep in mind the map below is a standard r2300. My blower is a r2300 rotor pack in an aftermarket high flow housing. [ATTACH=full]161703[/ATTACH] [/QUOTE]

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