X6 Sq gearing help please!

[DrPaul]

I'm new to the X6 Sq and I want to run a 10.5 so its manageable to start off with. If I'm using the 78T spur what pinion size should I be using as a starting point?

[ian h]

Start at 27

[DrPaul]

Many thanks

Originally Posted by ian h

Start at 27

[NeilRalph77]

Originally Posted by ian h

Start at 27

Really??? Surely it's dependant on surface, track layout, motor type etc, I generally run 22T occasionally upto 26T but it all depends. I'd look for recomended ratio for your specific motor first.

[Timee80]

i use a 29t on my speed passion if i dont use boost (on a big track anyway) so 27t sounds about right to me to start with

[ian h]

Originally Posted by NeilRalph77

Really??? Surely it's dependant on surface, track layout, motor type etc, I generally run 22T occasionally upto 26T but it all depends. I'd look for recomended ratio for your specific motor first.

I never used to run less than 27 for a 10.5. That was using Novak, speed passion or LRP. This was high grip, carpet and astro.

[DrPaul]

Thanks for the info guys.

I presume the box ratio is the same as the B4. Started testing today with a 27t pinion and its was a good starting point giving me a ratio of 7.5. I then went up to a 31t which was fine at about 6.5 and down to a 24t which would give me about 8.5. The 10.5 motor was more than fast enough and with that pinion range it gives me plenty to gear up or down depending on the surface.
Really looking forward to racing the X6sq in the summer

[ian h]

Originally Posted by DrPaul

Thanks for the info guys.

I presume the box ratio is the same as the B4. Started testing today with a 27t pinion and its was a good starting point giving me a ratio of 7.5. I then went up to a 31t which was fine at about 6.5 and down to a 24t which would give me about 8.5. The 10.5 motor was more than fast enough and with that pinion range it gives me plenty to gear up or down depending on the surface.
Really looking forward to racing the X6sq in the summer

Also remember that gearing alters weight balance as the motor moves forwards or backwards. ie smaller gears moves motor back which will shift weight balance rearwards. I used to run 78 spur most of the time but sometimes 76/75 and drop 1 on the pinion to keep ratios the same.

[mart3pop]

i also use 29/78 with a 10.5 on high grip, 10.5 motors love big pinions !