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Gearing Advice for Stealth with B4 slipper and 10.5 motor
Posted: Fri Dec 03, 2010 9:48 am
by peetbee
I've tried searching and couldn't seem to track down the answer.
So could anyone recommend what pinion to run on my 10.5?
I'm running the stealth box and the B4 slipper with 81t spur, also got 2.2" rims, any ideas?!
Thanks
Re: Gearing Advice for Stealth with B4 slipper and 10.5 moto
Posted: Fri Dec 03, 2010 4:42 pm
by craigc8791
Well it would be about a 24 or 25 tooth.
Re: Gearing Advice for Stealth with B4 slipper and 10.5 moto
Posted: Fri Dec 03, 2010 7:24 pm
by Kayne
The manual says to run a 19t pinion. I ran a 23t with a 10 turn Orion motor and it screamed untill the endbell melted.
Re: Gearing Advice for Stealth with B4 slipper and 10.5 moto
Posted: Fri Dec 03, 2010 10:02 pm
by craigc8791
Kayne wrote:The manual says to run a 19t pinion. I ran a 23t with a 10 turn Orion motor and it screamed untill the endbell melted.
I was thinking of the 2.65 tranny sorry.
Re: Gearing Advice for Stealth with B4 slipper and 10.5 moto
Posted: Sat Dec 04, 2010 9:23 pm
by peetbee
Thanks for the replies, I just realised that I didn't make it clear either!
It's for a gold pan with the 2.25:1 stealth box that I've put the b4 slipper on.
Any ideas?
Re: Gearing Advice for Stealth with B4 slipper and 10.5 moto
Posted: Sat Dec 04, 2010 9:35 pm
by davidka
10.5's can carry a lot of gear and even like being geared tall. Start with 24/81, it should pull that easy.
I geared the B4 with a 10.5 @ 25/78.
Re: Gearing Advice for Stealth with B4 slipper and 10.5 moto
Posted: Sat Dec 04, 2010 9:37 pm
by craigc8791
Don from Team Associated says and I qoute "Once people modify things so far, it becomes a game of guess and check." Spoke with him yesterday.
Re: Gearing Advice for Stealth with B4 slipper and 10.5 moto
Posted: Sat Dec 04, 2010 9:44 pm
by Ruffy
Not sure if this helps, but I ran a stock RC10 with a stock stealth tranny and slipper today with an LRP X-12 8.5T brushless motor and geared it at 85/23 for a final of 8.315 ratio and it was amazing.
Re: Gearing Advice for Stealth with B4 slipper and 10.5 moto
Posted: Sun Dec 05, 2010 3:37 pm
by Kayne
craigc8791 wrote:Kayne wrote:The manual says to run a 19t pinion. I ran a 23t with a 10 turn Orion motor and it screamed untill the endbell melted.
I was thinking of the 2.65 tranny sorry.
I thought it was about a B4.
Maybe I should proccess what i read before I type.
Re: Gearing Advice for Stealth with B4 slipper and 10.5 moto
Posted: Sun Dec 05, 2010 8:14 pm
by peetbee
craigc8791 wrote:Don from Team Associated says and I qoute "Once people modify things so far, it becomes a game of guess and check." Spoke with him yesterday.
Thanks Ruffy, will have a play!
If only I'd kept it simple and asked:
"What pinion would people recomend on a 10.5 for a 2.25:1 stealth using an 81t spur?"
Re: Gearing Advice for Stealth with B4 slipper and 10.5 moto
Posted: Mon Dec 06, 2010 11:56 am
by peetbee
Think I've got it sorted now.
I know what works on my B4 so have worked it backwards using:
"spur divided by pinion multiplied by gearbox ratio = FDR"
So I will be trying a 21t pinion with my 81t spur.