changed from 14t bell to 13t and increase in temp
#1
Tech Apprentice
Thread Starter
changed from 14t bell to 13t and increase in temp
Hi I have the kyosho inferno mp777 wc with novarossi plus s4 pull start
I have changed out from 14t clutch bell to 13t.
I went for a spin with it today and noticed an increase in temp ( normaly I had 225-245f) hard running on a 18- 20 degree Celsius day. this time I had 240-250f running not hard but not slow on 16 degree day.
I noticed nice increase in kick off.
But could the temp be higher because of the 13t bell making the engine rpm higher when driving same speed like on 14t?
I do not want to hear in replays that the engine temp is fine !
I want it to stay around 220-245
Also an important thing before I installed 13t bell in when I was working on the clutch I noticed that the spring got loose and would not keep the shoe in , (while engine running the wheels would spin) i took the spring , put it into vice , heated it up , and bent it slightly , I put it onto shoe clutch and it was fine
P.S I will get new springs
Can you answer my question?
I have changed out from 14t clutch bell to 13t.
I went for a spin with it today and noticed an increase in temp ( normaly I had 225-245f) hard running on a 18- 20 degree Celsius day. this time I had 240-250f running not hard but not slow on 16 degree day.
I noticed nice increase in kick off.
But could the temp be higher because of the 13t bell making the engine rpm higher when driving same speed like on 14t?
I do not want to hear in replays that the engine temp is fine !
I want it to stay around 220-245
Also an important thing before I installed 13t bell in when I was working on the clutch I noticed that the spring got loose and would not keep the shoe in , (while engine running the wheels would spin) i took the spring , put it into vice , heated it up , and bent it slightly , I put it onto shoe clutch and it was fine
P.S I will get new springs
Can you answer my question?
#4
Tech Elite
iTrader: (9)
The car will top out really quickly, it will feel like you are driving full throttle everywhere just to get around the track. On a small track it probably wouldn't hurt to go to a 13th bell, but anything medium size to large the bigger bell will be needed. A switch from 13 to 14 is a big step in gear ratio. Its like going from a 21t pinion in 10th scale to like 24t.
#5
Tech Apprentice
Thread Starter
The car will top out really quickly, it will feel like you are driving full throttle everywhere just to get around the track. On a small track it probably wouldn't hurt to go to a 13th bell, but anything medium size to large the bigger bell will be needed. A switch from 13 to 14 is a big step in gear ratio. Its like going from a 21t pinion in 10th scale to like 24t.
And what springs on shoe clutch should i use?
P.s thats not me on the video.
#8
Tech Apprentice
Thread Starter
Ok today i went outside with 14t and i was running hard . Temps went up to 267 f day temp is 18c why is my temp rising up?
#9
Tech Elite
iTrader: (12)
I'm assuming your tuning for the different temperature/conditions as well? Less than 10° wont make a big difference in the tune but more than that and there would be a noticeable change.
If that spring in your clutch is dragging, this could increase temps as well (increase load on the engine). Looking for binding in other areas too (wheel bearing, diff bearings, brakes etc).
If that spring in your clutch is dragging, this could increase temps as well (increase load on the engine). Looking for binding in other areas too (wheel bearing, diff bearings, brakes etc).
#10
Tech Apprentice
Thread Starter
I'm assuming your tuning for the different temperature/conditions as well? Less than 10° wont make a big difference in the tune but more than that and there would be a noticeable change.
If that spring in your clutch is dragging, this could increase temps as well (increase load on the engine). Looking for binding in other areas too (wheel bearing, diff bearings, brakes etc).
If that spring in your clutch is dragging, this could increase temps as well (increase load on the engine). Looking for binding in other areas too (wheel bearing, diff bearings, brakes etc).
I will change out the springs and we will see.
Any more ideas why temps are higher?