XRAY - Model racing cars

I understand the reason for tightening the belt after some runs.. but why is there an ajustment for releasing the tension as well?
tks

Because the best setting is to run the belts as loose as possible without them slipping. If you run a 27T this will be a different setting than with a 7T or 4.5BL which will require the belt to be tighter to prevent it from slipping.

I heard an xray driver say for 19t, run your back belt very loose, where as before it was always in the standard postion but it was like a guitar string. Now, with it loose the car feels free, and higher corner speeds. I suppose the transmittion is more efficient.

Hello tony. Thank you for your answer.

So, please give me an advice.

For a 3.5T Brushless system with a FDR 7.5 + rubber tires.

How about a stock 27 T motor?

Your answer will be greatly appreciated.

Thanks

With a 3.5BL I would start with the middle-middle position unless one of the belts feels particularly tight (then run that one in the loose position). After about 3-4 runs check the belt tension and adjust the tension one notch tighter if you feel it is too loose.

With 27T I would start with the loose-loose position unless one of the belts feels particularly loose (then run that one a notch tighter). After 3-4 runs same as for the 3.5BL.

When running 27t I did have slip running both belts in the loosest position even with fairly new belts. Which belt usually slips first? I may try the rear loose but the fron't one position tighter and vice verser to figure this out.

Mike