local 540 race attendee

[59burst]

a 540 race will be here at this weekend. I put 540 motor of course. and shorty arms too
is Reedy Modifieds decal for 540 racer illegal?

[Charlie don't surf]

Is that the re-annoed Worlds? That looks cool!

[vintage racer]

That paint is awsome,did you do that yourself?

[59burst]

yes, she is '84 to '94 hybrid

the body came with my ebay RC10 score. my paint job was only the wing

[dldiaz]

Sounds like fun, but, that body is too nice to race, IMHO.

[59burst]

I'll bring my backup body and tires. but I still want to run with this body

[59burst]

I noticed mabuchi 540 has opposite timing than RC10 tranny. and, I got 2 questions

1. anyone knows a 540 motor without (or counter) timing than mabuchi's

2. has anyone tried 5.9 to 6.0 gearing with 540? I'll use Lipo 25C battery. it's better than old batteries. but I'm not sure less than 6.5 gear ratio would work fine

[Charlie don't surf]

Timing? Or rotation?

[59burst]

endbell timing I mean. backward is fater than forward with mabuchi 540 motor

[SnoopMaxx]

The Johnson and Mabuchi should be zero timing ! !
I used 25t to 31t on carpet (78t spur and foam tyres)
and 21t to 25t (81t spur) on dirt tracks on my RC10ce with a Johnson 540

[tamiya]

zero timing but often they do whizz (unloaded) in reverse at a slightly higher RPM/frequency

but when you actually run it under load, there's no difference

when racing 540 onroad i had cars running the motor 'reversed' and laptime
was identical to same car running conventional rotation with same motor.

[59burst]

thank you SnoopMax and tamiya

I checked my 540 again. cooling holes made me confused. timing was 0 as SnoopMax said. I'll try lower gearing with modern Lipo battery.

Hyeong

[SnoopMaxx]

Sound's like a good starting point

[DerbyDan]

Cool - I love the shell!

Let us know how you get on at the race meeting

[59burst]

the track was built for the rally cars and was very small. I started with the old tires then I replaced the tires at the 2nd round. and then put large wing at the final
B2 got the 1st and 2nd prize.
fortunately the body is still shiny and clean. even looks like new one.

23t pinion with 82t spur worked great. thank you again