First Time Rider
Arm chair racerNew to the board
I got this idea to put another tranny in my 70 behind the existing engine/tranny. I cut it all apart from the crankcase tonight and i need to get it welded where it holds gear oil then mount it. im going to cut holes in the sides of the body where the 2 shafts will come out. i flipped the axle around and im putting disk brakes on it so i wont have to worry about swapping brake sides also. any one ever tried this?
1-86 350x runs decent- stolen
1-85 350x rough but runs strong 80mph per gps
1-85 350x completely restoring-frame blasted and painted
2-85 350x frames with engines messed up
1-85 atc 70 runs been in storage most of its life
Just Too Addicted
Arm chair racerJust too addicted
no, but sounds like a mad scientist thing to me. Post some pic's, I want to see what you are talking about. Having a hard time visualizing it.
1986 ATC250r
1984 ATC70
First Time Rider
Arm chair racerNew to the board
i will post some pics today
1-86 350x runs decent- stolen
1-85 350x rough but runs strong 80mph per gps
1-85 350x completely restoring-frame blasted and painted
2-85 350x frames with engines messed up
1-85 atc 70 runs been in storage most of its life
Power User
The day begins with 3WW
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Nearly every kind of Honda ATC (plus some custom ones
several Yami Quads (mostly custom built for MX racing)
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Power User
Teaching quads a lesson
I see what you are saying but I think its going to provide more underdrive than anything. If 4th in a stock 70 is an overdrive (higher ratio than 1 to 1) you might get slight OD if both transmission are in 4th but that probably wont gear you up much.
08 Outlaw 525s
07 CRF70
04 Harley FLHRCI
04 TRX90
03 XR650R
03 400EX- XR650R engine
02 XR100R
01 Banshee
00 XR50R
00 XR70R
99 PW50
99 JR50
96,95 Sportsman 400
95 Xplorer 400
94 Indy XLT
87 Trail Boss
86,86,86,86,86 Scrambler
86 TRX70 x2
85 ATC350X
85,84 ATC250R
85 Red Tecate
85 LT50 x2
84 XR500R
84,84,84,84,83,82,80,79 ATC70
82,79 XL500R
83 ALT50
79,78,77,77,76 XT/TT500
76,75,74 XL70
72,71,71,71 SL70
72 Harley FX
72,71,70,70,70,70,70 CT70H
72 SL100
70,69 Z50
Always finding new and exciting ways to not give a hoot in hell
Catch me if you can
We do this with swamp buggies down here all the time to get enough gear reduction. Engine/Trans/Trans2/Transfer/Rear. Never seen or heard of it being done in a trike or quad though.
Definitely interested to see how it turns out!
First Time Rider
Arm chair racerNew to the board
i know what your saying but a stock 70 has 2 gear reductions in the final drive. a 4-1 from clutch to trans then trans to output is a 2-1 so im going from output on trans1 to output on trans2 and final will be the input on trans 2 to rearend so gearing up 2-1 i believe. we had talked about turning it around and getting more underdrive but i dont think a 70 needs any lower
Originally Posted by Blown 331
1-86 350x runs decent- stolen
1-85 350x rough but runs strong 80mph per gps
1-85 350x completely restoring-frame blasted and painted
2-85 350x frames with engines messed up
1-85 atc 70 runs been in storage most of its life
Power User
Teaching quads a lesson
I still think you are going to get more underdrive with it than you will overdrive. But if that is the case you could always gear it way up on the sprockets which would give you a lot more top gearing and still be ok with all the underdrive. If someone looks up all gear ratios in a 70 you'll have your answer. I'm betting 4th is an overdrive so you will gain some but in the case that 4th is a 1 to 1 ratio. When you hook 2 transmissions together that are 1 to 1 in 4th, well it's still gonna be 1 to 1 and you won't gain any OD at all. Just a bunch of underdrive. Example if 1st gear is 4 to 1, putting both transmissions in first will cut that 4 to 1 down by another quarter. If any of that made sense.
08 Outlaw 525s
07 CRF70
04 Harley FLHRCI
04 TRX90
03 XR650R
03 400EX- XR650R engine
02 XR100R
01 Banshee
00 XR50R
00 XR70R
99 PW50
99 JR50
96,95 Sportsman 400
95 Xplorer 400
94 Indy XLT
87 Trail Boss
86,86,86,86,86 Scrambler
86 TRX70 x2
85 ATC350X
85,84 ATC250R
85 Red Tecate
85 LT50 x2
84 XR500R
84,84,84,84,83,82,80,79 ATC70
82,79 XL500R
83 ALT50
79,78,77,77,76 XT/TT500
76,75,74 XL70
72,71,71,71 SL70
72 Harley FX
72,71,70,70,70,70,70 CT70H
72 SL100
70,69 Z50
First Time Rider
Arm chair racerNew to the board
yea it makes sense if your running them both the same but say first is 4 to 1 and im using the output of my gearbox as the input it should be 1 to 4 right? since the thing factory is gear reduced i am turning it around and making it gear up. fourth is 2-1 none of it is actually 1-1
1-86 350x runs decent- stolen
1-85 350x rough but runs strong 80mph per gps
1-85 350x completely restoring-frame blasted and painted
2-85 350x frames with engines messed up
1-85 atc 70 runs been in storage most of its life
Power User
Teaching quads a lesson
OH, you are correct then. I mis-understood. Yeah if you put the second trans in backwards then you will have several OD gears. Sounds really interesting if you can pull it off and have the power to pull it. Good luck!
08 Outlaw 525s
07 CRF70
04 Harley FLHRCI
04 TRX90
03 XR650R
03 400EX- XR650R engine
02 XR100R
01 Banshee
00 XR50R
00 XR70R
99 PW50
99 JR50
96,95 Sportsman 400
95 Xplorer 400
94 Indy XLT
87 Trail Boss
86,86,86,86,86 Scrambler
86 TRX70 x2
85 ATC350X
85,84 ATC250R
85 Red Tecate
85 LT50 x2
84 XR500R
84,84,84,84,83,82,80,79 ATC70
82,79 XL500R
83 ALT50
79,78,77,77,76 XT/TT500
76,75,74 XL70
72,71,71,71 SL70
72 Harley FX
72,71,70,70,70,70,70 CT70H
72 SL100
70,69 Z50
First Time Rider
Arm chair racerNew to the board
lol i am glad it makes sense to someone other than me. i trimmed all the engine away from the gearbox/tranny now i gotta get the sides welded up and fabricate a removable cover so i can repair it if ever need be. i will post pics soon
1-86 350x runs decent- stolen
1-85 350x rough but runs strong 80mph per gps
1-85 350x completely restoring-frame blasted and painted
2-85 350x frames with engines messed up
1-85 atc 70 runs been in storage most of its life
weee weeee weeeeeeeeeee ! ! !
The day begins with 3WW
WHY ,,, 70's don't have enough power to pull a tall 4th gear anyway,,, with an adult on it,,, going up 2 teeth on the countershaft will achieve the same thing...
Power User
Roostin Away
Its been done on 4x4s before, but the gear box was bolted to the hub which spun the gears inside to another hub on the bottom which geared it lower.
1986 200x- old school D.I.D wheels, Gold D.I.D X-Ring Chain, Rad MFG. Carrier, PRM Grab Bar, Pro Circuit T-4 custom, Maier plastics, 85x forks, 18x10.5x8 kenda klaw mxr's on itp steels, the money pit never ends
2004 YFZ450 - CP 12.5:1, cam mod , gibson nerfs, hmf pipe, protaper bars + risers, dg bumper/skids, holeshot gncc's on itps, cycra handguard and more stuff to come.
Roostin' Away
Arm chair racerRoostin Away
Sounds cool. Reminds me of the old 2 stick semi's used to gave. Grab one lever, go grab the next go again, grab another, just don't grab both and screw up lol.
YTM-200, Wheeling machine!!!
1985 Honda 200x...
...Just a simple mild 200x
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