I have been running the 935 Tuned motor (935RTC) since May with very good results. On all counts, mileage, power, speed, reliability the engine has been very good if not perfect. This past weekend I changed the piston/sleeve/rod to the 7 port tuned set. I changed the gearing on the car and should have changed the header and/or pipe, but the engine ran good regardless and I placed 2nd at our Toys for Tots race.
The 935 Tuned was also used by the winner of the sportsman class at this same race. He is very happy with the motor, having switched from Novarossi. He is happy with the performance and the price difference.
For plugs, we are using BP of course, along with RB, Novarossi, Fioroni, and Odonnell. All fit and all work, depending on your preference.
The off road 3 port tuned engine is also getting great reviews from one of our local tracks. Even with a throttle heavy driver, it is getting over 8 minutes run time on a high speed track with plenty of power and speed. Today, I helped someone break in a 3 port tuned (335RB) with Fioroni 4 shoe clutch in his Losi 8T. It took nearly a gallon of fuel to get it up to speed and it still has a bit of a pinch, but he too is very happy with the power and tuning of the engine.
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