2 speed transmission idea - Page 2

sawhit4 · #16 11-09-2004, 07:52 PM

there are loads of problems with this idea:

1. first off it would benifit the car none

2. to actually build and two speed tranny that would fit would be a humongous task. Have you looked at the xmod chassis? its quite cramped.

3. someone brought up the point that since a bit or bit clone has two speeds why cant an xmod? to answer that question the bits "second speed" is done with electronics not mechanical parts. All is does is boost the power to the motor. The xmod already has this in its hi lo switch.

RacinSkillZ101 · #17 11-09-2004, 09:35 PM

lol id have to agree that it would b hard but it would b great for performance, you could have one gear to get u goin and another for top speed...

i got an idea for a clutch, it would only work for rwd cars tho, what u do is sand paper on washers, and put the washers on the diff with a spring pushing them apart, then use a magenet to pull the metal washers ans sand paper together, this is hard cause ud need a powerful yet small magnet, and a way to disengage and engage this magnet... if you were gifted you could figure out a way to set it up so that if u double tap the throttle and floor it is disengages the clutch for 3 sec and drops it, talk about killa burnouts

alas this isnt posible and as usualy i will receive my fair share of hate from this site just cause of a yet cool idea... jeeshe

micro kid · #18 11-09-2004, 11:13 PM

2 speeds arent needed for an electric car the only thing its going to do is add weight. an electric motor makes all its tourqe and power at any rpm. they dont need a lower gear to get them rolling like an internal combustion engine. if you want to go faster just add more gear and motor RPM

RacinSkillZ101 · #19 11-09-2004, 11:29 PM

lol ok its not like im building this or anything, heck my car aint even put togetehr yet... havent drivien the poor thing since last march

sawhit4 · #20 11-10-2004, 08:21 AM

yeah micro kid is right electric motors have no power curve like internal combustion. almost all the torque comes at almost no rpms. they only thing i could see you needing this for is if you had so much power that you couldnt get the car to full speed from a dead start because you tires spin. and the only way i could see this helping with that is adding weight to the back of the car.

Cool idea? yeah but worth wasting time on? dont think so

but on the other hand i guess if you just wanted something to do with your thumb while your driving your car you could make some kind of electric transmission. You could do it with like a pot on the controller tha has say 6 different settings. and when you turned it to the first setting the car would go a certain speed then when you went to the second it would go faster and so on. But all this would really do would be replace the throttle

jon.jon · #21 12-06-2004, 11:42 PM

Quote:

Originally posted by micro kid
2 speeds arent needed for an electric car the only thing its going to do is add weight. an electric motor makes all its tourqe and power at any rpm. they dont need a lower gear to get them rolling like an internal combustion engine. if you want to go faster just add more gear and motor RPM

The E-maxx has a 2 speed transmission and its electric

I think youll benefit from it if you made a monster truck xmod with a high and a low gear

.

sawhit4 · #22 12-10-2004, 08:23 AM

Comparing an emaxx to a xmod is crazy. First off theirs an obvious size difference. The emaxx uses its tranny so it can get off the line faster without spinning its tires. With something as small as an xmod (that basically has hard rubber tires) you dont have this problem because of the weight and the fact that the tires dont give when you accelerate.

second the emaxx has power way beyond anything an xmod could ever dream of in torque. Without the two speed it would probably wheelie all the time.

jon.jon · #23 12-10-2004, 09:48 AM

Quote:

Originally posted by sawhit4
Comparing an emaxx to a xmod is crazy. First off theirs an obvious size difference. The emaxx uses its tranny so it can get off the line faster without spinning its tires. With something as small as an xmod (that basically has hard rubber tires) you dont have this problem because of the weight and the fact that the tires dont give when you accelerate.

second the emaxx has power way beyond anything an xmod could ever dream of in torque. Without the two speed it would probably wheelie all the time.

what ever

!!!