RCCrawler Forums

12voltfun · 03-01-2009, 06:52 AM

I was thinking of trying a summit 2 speed tranny on my 1/6 jeep.
Anyone try one yet

bigger is better

super mud · 03-01-2009, 08:00 AM

I'm pretty sure it's the same thing as the e-maxx tranny. If its not, the maxx tranny will probobly be cheaper. Though 2 speed is very nice!

thatguy · 03-01-2009, 11:41 AM

Quote:

Originally Posted by super mud

I'm pretty sure it's the same thing as the new e-maxx tranny. If its not, the maxx tranny will probobly be cheaper. Though 2 speed is very nice!

the new emaxx trans comes as a one speed. with the second gear as a option.

12voltfun · 03-01-2009, 12:00 PM

I dont know what gear ratio is in the e-maxx tranny, but the summit has a 80:1 first and a 25:1 secound gear
so you could crawl or race/bash, but not sure if it could handle my rigs 15 pound+ weight

Egnix · 03-02-2009, 08:56 AM

Quote:

Originally Posted by 12voltfun

I dont know what gear ratio is in the e-maxx tranny, but the summit has a 80:1 first and a 25:1 secound gear
so you could crawl or race/bash, but not sure if it could handle my rigs 15 pound+ weight

I can weigh mine, but I'm pretty sure the Summit's weight is around 15lb (probably just under).

Culetto · 03-02-2009, 01:01 PM

I seriously doubt the Summit is 15lbs. I switched out all the electronics and put mine on lipo so its even lighter. It weights less than my comp rig. Ill let everyone know what the tranny will hold up to. I have a Holmes 7t puller comming thats going to finish it off. I have already seen some brushless summits on youtube and they didnt blow up on screen but who knows afterwards. Just remember not to shift it when under power.

Egnix · 03-02-2009, 01:29 PM

Read a post from someone who weighed theirs: 11.2lbs.
Wasn't too far off...

brushlessemaxx · 03-02-2009, 10:05 PM

rc4wd sells metal gears for the emaxx trans, if that doesent hold up nothing will. my emaxx crawler is 18 pounds with stock gears and it has not broken. i also have a freind with twin mamba max brushless and it can handle that power, the summit is the same trans same gear ratio as the optianal two speed open ratio. i have a 3:1 gear redution with the 80:1 gear ratio.

gyrene · 03-03-2009, 08:47 AM

rbgerrish is currently building a 2.2 Jeep Dorkstar Jeep 2.2 using a Summit Tranny. I realize his 2.2 is lighter
than 15#, but he might be able to tell you what he thinks. Just a suggestion.

cruzer971 · 03-09-2009, 01:52 PM

My e-revo uses the same tranny. And set up for crawling with batteries & wheel wieghts it is tipping the scales at over 13 lbs. The 2-speed is nice for crawling. I've snapped seven half-shafts but never had any trouble with the tranny. It is pretty strong. The only complaint is the slop in the gears w/ the 2-speed. when you crest over a ledge it rolls forward a little. It's managable once you get used to it, but it is annoying.

rbgerrish · 03-11-2009, 08:46 AM

I'm running one, as posted above. Havent driven it yet in my rig, but it sure is nice in the Summit, and I can only imagine the cool factor once it's moving in a vehicle half the weight! Imagine a 186:1 crawl ratio, then hit 2nd and go to 67:1! Talk about the best of both worlds!

12voltfun · 03-11-2009, 09:13 AM

vary cool build , my summit tranny should be here saturday cant what to start building, or rebuilding my 15+ pound 1\5 scale
crawler/hill climber/basher. I would like to relocate the motor beside the tranny ,save some space mabe?

bigger is better

rbgerrish · 04-02-2009, 09:52 AM

I've run my truck briefly with the summit tranny. It weighs 10 lbs, and I tested it with a 3500kv velineon and both a 2c and 3c lipo. It was geared 65/11 or so. All I can say is....WOW! 1st gear was great- plenty low for crawling, and the top end for that gear was about as fast as a regular crawler with a 45T and a 3c. (Pleasantly peppy) 2nd gear was another story! Serious speed, but still enough gearing that if you were in some mud and gunned it, you'd have major roosts. VERY fast top end, which was to be expected with that vast a gear ratio difference. I briefly geared up to around 15 tooth pinion, and on 3 cells the thing was insane in 2nd. I'll have video in a week or so...

So far I love this tranny! I'd recommend a BRUSHED fast motor though, to eliminate some of the brushless cogging I experienced in 1st gear, even with the massive ratio.

03-01-2009, 06:52 AM	#1
12voltfun Pebble Pounder Join Date: Jan 2009 Location: Bucktown Posts: 138	anyone try the summit tranny yet I was thinking of trying a summit 2 speed tranny on my 1/6 jeep. Anyone try one yet bigger is better

03-01-2009, 08:00 AM	#2
super mud Quarry Creeper Join Date: Jun 2008 Location: Hell Posts: 399	I'm pretty sure it's the same thing as the e-maxx tranny. If its not, the maxx tranny will probobly be cheaper. Though 2 speed is very nice!

03-01-2009, 12:00 PM	#4
12voltfun Pebble Pounder Join Date: Jan 2009 Location: Bucktown Posts: 138	I dont know what gear ratio is in the e-maxx tranny, but the summit has a 80:1 first and a 25:1 secound gear so you could crawl or race/bash, but not sure if it could handle my rigs 15 pound+ weight

03-02-2009, 01:01 PM	#6
Culetto RCC Addict Join Date: Jul 2008 Location: Sin City Posts: 1,332	I seriously doubt the Summit is 15lbs. I switched out all the electronics and put mine on lipo so its even lighter. It weights less than my comp rig. Ill let everyone know what the tranny will hold up to. I have a Holmes 7t puller comming thats going to finish it off. I have already seen some brushless summits on youtube and they didnt blow up on screen but who knows afterwards. Just remember not to shift it when under power.

03-02-2009, 01:29 PM	#7
Egnix Rock Stacker Join Date: Nov 2008 Location: Colorado Springs Posts: 60	Read a post from someone who weighed theirs: 11.2lbs. Wasn't too far off...

03-02-2009, 10:05 PM	#8
brushlessemaxx Pebble Pounder Join Date: Jan 2009 Location: Colorado Springs Posts: 112	rc4wd sells metal gears for the emaxx trans, if that doesent hold up nothing will. my emaxx crawler is 18 pounds with stock gears and it has not broken. i also have a freind with twin mamba max brushless and it can handle that power, the summit is the same trans same gear ratio as the optianal two speed open ratio. i have a 3:1 gear redution with the 80:1 gear ratio.

03-03-2009, 08:47 AM	#9
gyrene Rock Crawler Join Date: Jan 2007 Location: Do I look like a freaking people person? Posts: 874	rbgerrish is currently building a 2.2 Jeep Dorkstar Jeep 2.2 using a Summit Tranny. I realize his 2.2 is lighter than 15#, but he might be able to tell you what he thinks. Just a suggestion.

03-09-2009, 01:52 PM	#10
cruzer971 Pebble Pounder Join Date: Nov 2008 Location: Prescott Posts: 114	My e-revo uses the same tranny. And set up for crawling with batteries & wheel wieghts it is tipping the scales at over 13 lbs. The 2-speed is nice for crawling. I've snapped seven half-shafts but never had any trouble with the tranny. It is pretty strong. The only complaint is the slop in the gears w/ the 2-speed. when you crest over a ledge it rolls forward a little. It's managable once you get used to it, but it is annoying.

03-11-2009, 08:46 AM	#11
rbgerrish I wanna be Dave Join Date: Mar 2004 Location: The Haunted Forest Posts: 3,586	I'm running one, as posted above. Havent driven it yet in my rig, but it sure is nice in the Summit, and I can only imagine the cool factor once it's moving in a vehicle half the weight! Imagine a 186:1 crawl ratio, then hit 2nd and go to 67:1! Talk about the best of both worlds!

03-11-2009, 09:13 AM	#12
12voltfun Pebble Pounder Join Date: Jan 2009 Location: Bucktown Posts: 138	vary cool build , my summit tranny should be here saturday cant what to start building, or rebuilding my 15+ pound 1\5 scale crawler/hill climber/basher. I would like to relocate the motor beside the tranny ,save some space mabe? bigger is better

04-02-2009, 09:52 AM	#13
rbgerrish I wanna be Dave Join Date: Mar 2004 Location: The Haunted Forest Posts: 3,586	I've run my truck briefly with the summit tranny. It weighs 10 lbs, and I tested it with a 3500kv velineon and both a 2c and 3c lipo. It was geared 65/11 or so. All I can say is....WOW! 1st gear was great- plenty low for crawling, and the top end for that gear was about as fast as a regular crawler with a 45T and a 3c. (Pleasantly peppy) 2nd gear was another story! Serious speed, but still enough gearing that if you were in some mud and gunned it, you'd have major roosts. VERY fast top end, which was to be expected with that vast a gear ratio difference. I briefly geared up to around 15 tooth pinion, and on 3 cells the thing was insane in 2nd. I'll have video in a week or so... So far I love this tranny! I'd recommend a BRUSHED fast motor though, to eliminate some of the brushless cogging I experienced in 1st gear, even with the massive ratio.

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