tiger power
08-23-2007, 11:53 PM
#26
Senior Member
RE: tiger power
What's all this talk about gear ratios, Perry just make a set(they'll gladly pay you) for everyone here to prove your point! You've already done it man! I volunteer to be the first naysayer to try out your "theory". 
08-24-2007, 12:00 AM
#27
RE: tiger power
yeah, it's getting time for me to put my money where my mouth is. Note to self, if and when I get it done Swath asked for the first set. Here's my prototypes in my Tiger
08-24-2007, 12:45 AM
#28
Senior Member
RE: tiger power
Wow, that gearing with Speed400s? Does it climb trees? I blew a board in the sugar sand with my Speed400s. I didn't have a fan or heatsinks then either. Been thinking about putting them in my Walker Bulldog when I tear it apart to redo the suspension springs, gun and interior.
Got some video of that setup running around the yard?
Got some video of that setup running around the yard?
08-24-2007, 11:49 AM
#29
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RE: tiger power
When I raced buggies,20 years ago mind but I doubt anything has changed,if I raced a long track indoors on carpet or astroturf I'd put on a big pinion,say between 16 to 19 teeth for more speed and less wheelspin.
If I raced a short track or off road circuit I'd use a small pinion,anywhere between 12 to 16 teeth to give me more "sprinting"ability out of and between corners.Plus if I needed to break traction i.e make it wheelspin to slide into and through a corner or flick the backend out,I could do it easily with a small pinion fitted that would allow the motor to "get on the pipe"quickly.
So like the man says:
Big pinion=Slow acceleration and high top speed.
Small pinion=Quick acceleration,lower top speed but more "driveability",i.e the ability to crawl away and move at a "scale" speed,just what you really need in a Tiger1.
Oh yeh,I used 48DP gears both on the motor pinion and the gearbox spur gear.Believe me,32dp,48dp and 64dp certainly won't mix and match.You wont get them to mesh at all.
I'd say HL 'boxes are around a 32 diametric pitch(DP).Finer pitch gears(48 or 64DP) are more expensive to produce and harder to mesh in a busy production environment.
Miggers
If I raced a short track or off road circuit I'd use a small pinion,anywhere between 12 to 16 teeth to give me more "sprinting"ability out of and between corners.Plus if I needed to break traction i.e make it wheelspin to slide into and through a corner or flick the backend out,I could do it easily with a small pinion fitted that would allow the motor to "get on the pipe"quickly.
So like the man says:
Big pinion=Slow acceleration and high top speed.
Small pinion=Quick acceleration,lower top speed but more "driveability",i.e the ability to crawl away and move at a "scale" speed,just what you really need in a Tiger1.
Oh yeh,I used 48DP gears both on the motor pinion and the gearbox spur gear.Believe me,32dp,48dp and 64dp certainly won't mix and match.You wont get them to mesh at all.
I'd say HL 'boxes are around a 32 diametric pitch(DP).Finer pitch gears(48 or 64DP) are more expensive to produce and harder to mesh in a busy production environment.
Miggers
08-24-2007, 06:01 PM
#30
RE: tiger power
ORIGINAL: Perry S.
Not sure they exist. The HL pinion is 8 tooth on a 2.3 mm shaft. I thought I saw a 7 tooth one before but can't remember where. Your kinda between a rock and a hard place here. A low turn motor will surely pull too many amps for the HL electronics to bear. Gearing is the only way to go if you want more torque to the tracks.
Perry
Not sure they exist. The HL pinion is 8 tooth on a 2.3 mm shaft. I thought I saw a 7 tooth one before but can't remember where. Your kinda between a rock and a hard place here. A low turn motor will surely pull too many amps for the HL electronics to bear. Gearing is the only way to go if you want more torque to the tracks.
Perry
The pinions on the two stock HL gearboxes on my desk (1 plastic 1 metal) are 10 tooth. Perhaps you were thinking of 8 teeth as the smallest you've seen, not as tht stock pinion?
David
08-26-2007, 07:47 AM
#32
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RE: tiger power
Easy trial and error performance HL mods.
The motors and gearing that came in your tank from HL is the probably the best solution.
But, the stock Tamiya 380 tank (not rc buggies) motors with stock pinions will drop into the HL gear boxes with no mods (HL gear boxes are a copy of an out dated Tamiya Design). That will make your tank a little to fast, but fun. The motors with pinion gears are cheap and can be found on ebay.
Try the site below for various low torque 400 motors and pinion selections. The tank will become scale speed slow, controllable and crawl up almost anything in the backyard or battlefield using low torque motors. I did not like this mod. To slow and not much fun.
http://www.hobby-lobby.com/speed400.htm
http://www.hobby-lobby.com/motoraccy.htm
http://www.hobby-lobby.com/pinions.htm
The motors and gearing that came in your tank from HL is the probably the best solution.
But, the stock Tamiya 380 tank (not rc buggies) motors with stock pinions will drop into the HL gear boxes with no mods (HL gear boxes are a copy of an out dated Tamiya Design). That will make your tank a little to fast, but fun. The motors with pinion gears are cheap and can be found on ebay.
Try the site below for various low torque 400 motors and pinion selections. The tank will become scale speed slow, controllable and crawl up almost anything in the backyard or battlefield using low torque motors. I did not like this mod. To slow and not much fun.
http://www.hobby-lobby.com/speed400.htm
http://www.hobby-lobby.com/motoraccy.htm
http://www.hobby-lobby.com/pinions.htm
