Motor frying

[ashleyb4]

Hi

at dudley this weekend i was frying motors evety race they where coming off really really hot i started with a 19t which gotreally hoti started with a 23 on a white spur and came of really really then i wnt to a 24 and that came of slightly cooler but still to hot. Then i went to a 25 and was even hotter again. So i went back to the 24 for round 4 with a new hole in the shell for cooling. This also got hot but i only ran for a few minutes as i was getting interferance. So i thought it maight have been my motor just not powerfull enough so i changed it to my 14 V2 and i was doing well insane amounts of speed i was in third place chasing the 2nd place man when the motor came unsoldered cus of the heat i was runing this on a 23t pinion and a white spur. What the hell is wrong why is it getting so hot.

A

[losixxx]

your way under geared, when i ran a v2 dynasty in xx4 i ran it 29/78

[ashleyb4]

Oh I was told by carl lathem and doom to run it on a 23/24 on a 78 spur. Ill give a 29 a go.
Thanks

A

[tyreman]

Originally Posted by ashleyb4

Oh I was told by carl lathem and doom to run it on a 23/24 on a 78 spur. Ill give a 29 a go.
Thanks

A

Ashley I run a Spashett 9x1 V2 on 21/78 so yeah you could be under geared

If you go dy Doom's normal recomendation think it's 9-10 over wind, so you shold have been on 28-29.

[ashleyb4]

That still doesnt exsplain the 14 though i was runnign that on a 23 and that got the hotest. And tyre man it is very true he was going on about adding 9/10 to the wind.

A

[bert digler]

Originally Posted by ashleyb4

That still doesnt exsplain the 14 though i was runnign that on a 23 and that got the hotest. And tyre man it is very true he was going on about adding 9/10 to the wind.

A

ash sorry to break this to ya but a lot of the probs with ya motors was down to drivin you had some bad luck this is the biggest motor fryer simple physics say that starting your car from a standstill will use far more energy (heat) turn your punch control down on the speedo to free a bit pace of the car it may be more drivable smoother and faster laptimes

[bigred5765]

78/23 gives a overal gear ratio of 8.26630
78/24=7.921875 thought that should be ok ish om a 19 turn