Ditch the cooling fan for a track bike?

Feb 2018
267
86
NYC
The B bike engine had about 1000 miles total. I but about 200 of those on it before it broke. It was tuned with MR12. There was so much soot built up I've been told that caused the piston to hit the valve or the crank bearing failed. I haven't had the motor apart yet. It screamed though and the 959 is a great track bike.
Oooooot I think MR12 is too corrosive for these Italian bikes...
 
Feb 2020
9
2
USA
Yeah. I certainly didn’t ask for it. After one track day buying that stuff I switched to T4 but I think the damage had been done.
 
Apr 2015
593
296
Durham, UK.
I retained a fan ok on my race bike, even with bigger rads. It has come in handy many times when delayed gridding up or
when stuck circulating at 50km for safety car stuff while endurance racing. No benefit throwing it away for the small amount of weight
 
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Reactions: KarlKani
Mar 2016
209
63
Roseville
I would keep the fans. There are pregrid delays, red flags where you might stop on track and even after the session it’s nice to have the fan to keeps some airflow over the engine once stopped.
 
Apr 2015
593
296
Durham, UK.
Mick1976 does a nice carbon bracket kit for slimming down the fan assembly if you want to get rid of the big duct.
Handy if you are going to run an oil catch pan too.
 

Mick1976

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Jul 2016
1,010
280
Nor Cal
Yes indeed man yeah actually got one available right now at discounted price and these work real well on the track way more airflow, less weight and less crap to deal with.