Quote:
Originally Posted by Mkai0
No my Rotrex 1.5 upgrade is the same stg1 sc C38-81 with just a larger housing. The larger Rotrex unit will likely not fit with the stg1 configuration. You could still always use a smaller pulley for more power on your current setup.
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That was my plan, looking over the charts of the units at 8psi it is in the lower 50% so plenty of room to drop down a pulley size and bump up the psi to 10-11. Plus my other upgrade idea with that is e85 to squeeze out a little more that 93 octane lacks.