1/12 forum
Having problems with my KO Speedo VFS perhaps a 1/12th scale master can help.
The speedo is set correctly and the punch setting are reasonable. The current limit is OFF. The problem I have is at the start of a race from a heads-up start. At the line when the buzzer goes off and I nail the throttle (i know roll-on it) the motor seems as if it stalls or just creeps off the line and once moving if fine. Problem is by this point, the guys who qualified behind me usually plow into the rear of my car or blow past me.
My lap time appear consistant once the car is moving...its just at the start of a race. Anyone running a KO VFS for 4-cell 1/12th scale you can help? Perhaps someone can provide me with the setting they use? Any advice would help?
Thanks
The speedo is set correctly and the punch setting are reasonable. The current limit is OFF. The problem I have is at the start of a race from a heads-up start. At the line when the buzzer goes off and I nail the throttle (i know roll-on it) the motor seems as if it stalls or just creeps off the line and once moving if fine. Problem is by this point, the guys who qualified behind me usually plow into the rear of my car or blow past me.
My lap time appear consistant once the car is moving...its just at the start of a race. Anyone running a KO VFS for 4-cell 1/12th scale you can help? Perhaps someone can provide me with the setting they use? Any advice would help?
Thanks
Joined: Nov 2001
Posts: 3,823
From: SF Bay Area
I have heard the Ko/Twister speedos Fets go bad or get weak after even a little use.We had someone at TCS Nats change out his speed control{vfs1 pro} to another of the same speedo{brand new} and noticed a huge difference in performance.Fets go bad.Hopefully this is not the case for you but you never know.
Tech Fanatic
Joined: Jun 2005
Posts: 900
I have heard the Ko/Twister speedos Fets go bad or get weak after even a little use.We had someone at TCS Nats change out his speed control{vfs1 pro} to another of the same speedo{brand new} and noticed a huge difference in performance.Fets go bad.Hopefully this is not the case for you but you never know.
If anyone can post their setting profile for a 4 cell 1/12th using a KO VFS speedo so I compare to mine it would be appreciated.
CarlosG took the bait
oic
well I took some crappy pix from my cellphone and I don't like them so I'm going to take some more of the wire job on my 12th with brushless. and I found my 78 tooth robinson spur I used at the major taylor velodome back in 95 so I should be good.

well I took some crappy pix from my cellphone and I don't like them so I'm going to take some more of the wire job on my 12th with brushless. and I found my 78 tooth robinson spur I used at the major taylor velodome back in 95 so I should be good.
Tech Addict
Joined: Jan 2005
Posts: 528
Good evening everyone,
I got a little matter, purchasing a set of ball bearing to refresh an L3, the front bearing in the set come unflanged (in fact L4 bearings), the ones on the car are flanged (the stock ones for a L3). The tires are almost over so I have to buy some fresh set too (front and rear)!
Here is the trick, there is some manufacturers how make rims that fit with unflanged bearings - with a little molding on the rim axle - and other who dont'! I want to be sure to get the appropriate rim to fit the bearing! I read somewhere the good starting compromise is front Purple and rear Gray. I check PARMA, TRC, JACO, GRP, BSR, CRC but not sure about the mounting with unflanged bearing, so a confirmation will be great:
Thanks for your help
Arno
I got a little matter, purchasing a set of ball bearing to refresh an L3, the front bearing in the set come unflanged (in fact L4 bearings), the ones on the car are flanged (the stock ones for a L3). The tires are almost over so I have to buy some fresh set too (front and rear)!
Here is the trick, there is some manufacturers how make rims that fit with unflanged bearings - with a little molding on the rim axle - and other who dont'! I want to be sure to get the appropriate rim to fit the bearing! I read somewhere the good starting compromise is front Purple and rear Gray. I check PARMA, TRC, JACO, GRP, BSR, CRC but not sure about the mounting with unflanged bearing, so a confirmation will be great:
Fit unflanged bearing: CRC, JACO
Fit flanged bearing: BSR
Not sure: TRC, GRP, BSR, PARMA
I guess as Newb, the standard (not the Pro) will be better.Fit flanged bearing: BSR
Not sure: TRC, GRP, BSR, PARMA
Thanks for your help
Arno
Jaco's new Prism wheels take flanged bearings. I am not sure about the older Jaco wheels.



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