Gear Ratio Poll for the 2 Speed

[DemonRC]

Ok folks, I need to calculate what kinda gearing we need on the 2 speed setup. I'm aiming for the following 1st and 2nd speed:


MT 1st 27/33


MT 2nd 31/29


TT 1st 29/31


TT 2nd 33/27


Let me know what you think. Also if you have any suggestions on gearing please post what motor, pipe, and tires you are running.

 

[GTS 666]

Can you change the gear ratios around to suit your own needs such as if you have a MT and then change Tyres can you change the ratios around to the TT setup.

 

[forist]

TT 1st 29/31


TT 2nd 33/27


Sounds good to me


I am running ESP 4-Bolt Modified/ESP CHAMPIONSHIP PORTED 36mm Zenoah 30.5cc with lighten flywheel and soon to have 36mm Lightened Piston also running DDM side Dom and Proline Bowties.

 

[booggieman2u]

I would like to see same top speed but more acceleration as a option pleeeeeease lol we want wheelies lmfao

 

[DemonRC]

To keep costs down the 1st and 2nd speed pinion and spurs ratios will be static. The teeth difference between the pinions will be 4 teeth. For example:


1st speed = 18/38


2nd speed = 22/34


What will change will be the C and D gears to pull both the 1st and 2nd speed up or down in ratio. So let's say we have the following setup:


Sample Gearing for MT


1st speed = 18/38


2nd speed = 22/34


C/D gear = 35/21


Final 1st speed ratio = 1.266 = stock 27/33/25/25 gears


Final 2nd speed ratio = .927 = stock 31/29/25/25 gears


So let's push the C/D gearing up a notch for the TT:


Sample Gearing TT #1


1st speed = 18/38


2nd speed = 22/34


C/D gear = 37/19


Final 1st speed ratio = 1.084 = stock 30/30/25/25 gears


Final 2nd speed ratio = .794 = stock 33/27/25/25 gears


Here's a ratio good for the MCD and wheelies for the Rampage TT/MT


Sample Wheelie King Gearing


1st speed = 18/38


2nd speed = 22/34


C/D gear = 32/24


Final 1st speed ratio = 1.583 = stock 24/36/25/25 gears


Final 2nd speed ratio = 1.159 = stock 28/32/25/25 gears

 

[Triggerman77]

Nice D!! Man im getting excited. Can't wait to run a 2sp !!! Wheelie king gearing Ahh i like it. Keep it coming !!

 

[jackson]

i think for now as a first set up you should come up with a ready set kit something standart and as production kicks in than you should consider diferent gearing options! sot like the hpi baja's but as i am runing a esp30.5cc ported i think all metal gears are a must!


but some acceleration combined with some real kicking but top speed wouldn't hurt!

 

[rob64n]

To keep costs down the 1st and 2nd speed pinion and spurs ratios will be static. The teeth difference between the pinions will be 4 teeth. For example:
1st speed = 18/38


2nd speed = 22/34


What will change will be the C and D gears to pull both the 1st and 2nd speed up or down in ratio. So let's say we have the following setup:


Sample Gearing for MT


1st speed = 18/38


2nd speed = 22/34


C/D gear = 35/21


Final 1st speed ratio = 1.266 = stock 27/33/25/25 gears


Final 2nd speed ratio = .927 = stock 31/29/25/25 gears


So let's push the C/D gearing up a notch for the TT:


Sample Gearing TT #1


1st speed = 18/38


2nd speed = 22/34


C/D gear = 37/19


Final 1st speed ratio = 1.084 = stock 30/30/25/25 gears


Final 2nd speed ratio = .794 = stock 33/27/25/25 gears


Here's a ratio good for the MCD and wheelies for the Rampage TT/MT


Sample Wheelie King Gearing


1st speed = 18/38


2nd speed = 22/34


C/D gear = 32/24


Final 1st speed ratio = 1.583 = stock 24/36/25/25 gears


Final 2nd speed ratio = 1.159 = stock 28/32/25/25 gears

with racing my MT I would keep low, 24/36 first speed and 27/33 for second if it can't handle 29/31, just a thought,lol....

 

[TheNewbe]

I vote for more acceleration and wheelies..lol


I have a V4 MT stock.

 

[Trickle007]

Wheelies=FUN

 

[iwik76]

I'm liking the gear ratios for the MT Demon i cannot wait to get the 2 speed set up how close till release day? i'm currently running 31/29/26/24 with a Dog pile racing "wildchild" 29.5cc and Baja 5B rears all around with a CPI Pipe.

 

[DemonRC]

Oooh, the Wildchild 29.5 is a great engine. A couple guys at the track run em and they are fast.


We are still waiting on the machine shops to cut the new 2 speed design. We have some of the parts but are still waiting on gears. It'll be a few weeks before we get everything for final R&D. After that we will put in the production order. I would guestimate late summer.

 

[iwik76]

Oooh, the Wildchild 29.5 is a great engine. A couple guys at the track run em and they are fast.
We are still waiting on the machine shops to cut the new 2 speed design. We have some of the parts but are still waiting on gears. It'll be a few weeks before we get everything for final R&D. After that we will put in the production order. I would guestimate late summer.

Late summer is good for me.. More time to save...!! The wildchild is a beast i'm still on breakin but it ooozzees power..

 

[TheNewbe]

I was wondering will you be doing pre-orders Demon?

 

[DemonRC]

Probably not. I'll have to check with my partners to verify this.

 

[jackson]

i wonder if you will be able to ship it worldwide? south america ?

 

[peter123]

do you have photos of your 2 speed ?

 

[DemonRC]

Those won't be released untill we are finished revising the prototypes.

 

[dohc]

Where can I buy those wheelie gears ? 18/38 and 22/34 ?

Thanks DOHC

 

[Guest]

Most definitely first gear lower for Wheelies. Wheelies are the only thing I miss from running nitros. The antisipation is killing me! Just can't wait.