Acceleration problem!!
#1
Acceleration problem!!
Hey guys
i am having a real problem with my car i am running a 9 single motor with a cyclone speedie. 16 tooth pinion as said in my manual and a 98 spur. with a JR xs3
When i accelerate it takes a long time to reach top speed unlike my other motors.
Any know how i can fix my problem????????????????????????????????????
M.J
i am having a real problem with my car i am running a 9 single motor with a cyclone speedie. 16 tooth pinion as said in my manual and a 98 spur. with a JR xs3
When i accelerate it takes a long time to reach top speed unlike my other motors.
Any know how i can fix my problem????????????????????????????????????
M.J
#3
19/98 is low imo, however ive never ran a low turn motor, maybe try going up a tooth or 2
#5
The manual is just a very broad approximation for gearing. I know on my T4 if I run my V2 12x1 with the gearing suggested in the manual it will come in totally cooking - the motor spray would just boil off the motor plate, and I generally need at least 2 teeth on the pin LESS than the manual.
If acceleration seems sluggish and you've ruled the motor, I guess some other electronic things should be checked: maybe you changed the punch setting on the speedie, or have you been playing with throttle expo on the Tx? Tx throttle EPA OK?
Let us know if you find out what'a happening.
If acceleration seems sluggish and you've ruled the motor, I guess some other electronic things should be checked: maybe you changed the punch setting on the speedie, or have you been playing with throttle expo on the Tx? Tx throttle EPA OK?
Let us know if you find out what'a happening.
#8
As a general observation if acceleration is sluggish, then drop teeth on the pinion or add teeth on the spur.
Another question, is the motor really hot when you bring it in? If so that is another indication you need to drop some pinion teeth.
MIKE
Another question, is the motor really hot when you bring it in? If so that is another indication you need to drop some pinion teeth.
MIKE
#11
Tech Champion
iTrader: (17)
Originally posted by Jack2
may sound dumb but make sure your diffs are nice and fresh and check belts etc. to make sure you haven't got sliping probs. the extra poke of a 9 turn may cause some probs. I run 8x1-7x1 V2's and they dont need to be cut that often. so it *shouldn't* be that
may sound dumb but make sure your diffs are nice and fresh and check belts etc. to make sure you haven't got sliping probs. the extra poke of a 9 turn may cause some probs. I run 8x1-7x1 V2's and they dont need to be cut that often. so it *shouldn't* be that
#12
Tech Elite
iTrader: (1)
Originally posted by Jon Kerr
But most other low turn motors will need to be cut that often. Try and run a KR 9x1 more than two runs on a cut and brushes. It'll feel like a 19 turn at best.
But most other low turn motors will need to be cut that often. Try and run a KR 9x1 more than two runs on a cut and brushes. It'll feel like a 19 turn at best.
I think 2 teeth on the pinion or adding 5 teeth on the spur should make a huge difference tho
Last edited by Jack2; 03-04-2005 at 01:47 AM.
#13
batts
what batteries you running??
#14
R/C Tech Elite Member
iTrader: (47)
Originally posted by mb racer
just go up 2 teeth and youll be fine ... still dont know the ratio of your car .but this ahould do well for you .. keep chking the motor for het too ...
just go up 2 teeth and youll be fine ... still dont know the ratio of your car .but this ahould do well for you .. keep chking the motor for het too ...