Different pulley sizes for c30-94 Rotrex...
#23
I think the C30-94 should be fine on a stock engine as long as you get a good tune. It's what I would run... though it's not something you can just slap on and forget about. If you are hitting too much power then you can throttle the Rotrex back by either dropping a restrictor into the intake which will limit peak boost / power, or install a recirc / BOV to vent the boost. Either way it's something I would do after you've got it on a dyno and had a play. Given the turbo power some people are running on stock engines, the Rotrex should be far more forgiving to stock rods and stock transmissions as it's power curve will be more linear.
#29
A restrictor will restrict boost at high RPM, that's a common approach that's simpler/lighter/easier/more reliable.
#30
I think the C30-94 should be fine on a stock engine as long as you get a good tune. It's what I would run... though it's not something you can just slap on and forget about. If you are hitting too much power then you can throttle the Rotrex back by either dropping a restrictor into the intake which will limit peak boost / power, or install a recirc / BOV to vent the boost. Either way it's something I would do after you've got it on a dyno and had a play. Given the turbo power some people are running on stock engines, the Rotrex should be far more forgiving to stock rods and stock transmissions as it's power curve will be more linear.
My first choice was the Trackspeed Turbo kit but after waiting for many months it is still not all there so I turned to the TDR Rotrex. I asked Gary about some combination of restrictor - pulleys - bov but he said that he can't (won't ?) help with any of that, "his kit comes only one way" and I guess that's that.
I want to move the torque curve down and forfeit top end HP on my stock 1.8 but the Rotrex landscape confuses me.
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