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07-14-2005, 08:18 PM
| #1 |
| Rock Stacker Join Date: Oct 2004
Posts: 51
|  gear ratio help
ok guys a little math problem here for you. if i know my emaxx tranny ratio for 1st is 28.9:1, and my older stanpede tranny was 4.8: 1. i like the speed i had and torque when i was using my pede tranny with a 13t pinion on it. now ive built another truck but with a emaxx tranny in it. how do i plug the numbers in to find the same ratio in my emaxx tranny as i did with my pede tranny with a 13 t pinion on it. thanks alot |
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07-14-2005, 08:26 PM
| #2 |
| Colt Python/SR9c  Join Date: Feb 2004 Location: out in the shop, reloading ammo!
Posts: 8,626
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tranny 1st gear= 2.76 2nd gear = 1.72 diff = 2.84 to figure it all out you take your spur and pinion and divide that... then take that # and multiply by the tranny ratio... then take that # and multiply it by the diff... then if your running a 3.8 reduction unit, multiply it all again by 3.8.... ex. 72/9 = 8 8 x 2.76( 1st gear tranny) = 22.08 22.08 x 2.84(diff) = 62.7:1 final ratio but if your running lets say a 3.8 unit, you take 62.70 x 3.8 =238.2:1 crawl ratio but you need to know the ratio of your diffs ( whatever diff your using) the #'s i gave are for a maxx hope this helps |
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07-15-2005, 06:11 PM
| #3 |
| Rock Stacker Join Date: Oct 2004
Posts: 51
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whats the 2.76 you put. i thouggh it was 28.9 : 1 in first. not 2.76
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07-15-2005, 11:42 PM
| #4 |
| Quarry Creeper Join Date: Jun 2004 Location: Ventura
Posts: 326
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nope it is 2.76:1 twisted is right
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07-16-2005, 06:18 AM
| #5 |
| Colt Python/SR9c Join Date: Feb 2004 Location: out in the shop, reloading ammo!
Posts: 8,626
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that is the gearing for the trans only... the 29:1 you mentioned is the final ratio for a Maxx in 1st gear.
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07-16-2005, 12:28 PM
| #6 |
| Rock Stacker Join Date: Oct 2004
Posts: 51
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ohh ok so the 28 is the reduction in the tranny and in the diffs too.
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07-16-2005, 12:38 PM
| #7 |
| Rock Stacker Join Date: Oct 2004
Posts: 51
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i see that makes more sence now...thanks alot
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03-18-2008, 08:18 AM
| #8 | |
| Rock Stacker Join Date: Mar 2008 Location: Canada
Posts: 60
| Quote:
What are the new internal ratios ? | |
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03-18-2008, 05:53 PM
| #9 |
| Rock Stacker Join Date: Mar 2008 Location: Canada
Posts: 60
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I took me about an hour but i finnaly figure the internal ratio of the new 16.4 E-Maxx tranny with two speed option. 1rst wide ratio = 5.07/1 1rst close ratio = 2.96/1 2nd = 1.83/1 |
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