57LikesThe Speed Passion Thread
01-09-2012, 06:52 AM
#8701
I just picked up a new 4.5 MMM and noticed there was about 2mm of play in the rotor/shaft. Is this normal? I don't have that amount of play on my V3.0 6.5.
I have some motor shims if I need to shim it but I'm not entirely sure how to "center" the rotor because the magnets don't seem to be pushing it to any natural static position.
Thanks in advance for any tips.
I have some motor shims if I need to shim it but I'm not entirely sure how to "center" the rotor because the magnets don't seem to be pushing it to any natural static position.
Thanks in advance for any tips.
01-10-2012, 12:57 AM
#8704
Tech Master
iTrader: (17)
Did some testing at our local track today, tried 2 different MMM 13.5 motors and was quite dissapointed with the results.
Both motors used the same FDR and boost settings but one was miles ahead in terms of top end speed compared to the other. should I expect such a big difference between motors?
Both motors used the same FDR and boost settings but one was miles ahead in terms of top end speed compared to the other. should I expect such a big difference between motors?
01-10-2012, 01:05 AM
#8705
Tech Addict
Did some testing at our local track today, tried 2 different MMM 13.5 motors and was quite dissapointed with the results.
Both motors used the same FDR and boost settings but one was miles ahead in terms of top end speed compared to the other. should I expect such a big difference between motors?
Both motors used the same FDR and boost settings but one was miles ahead in terms of top end speed compared to the other. should I expect such a big difference between motors?
Actually I tried doing the FDR 5.0 on the first one, and it died. But the other one were going strong with low temps and more power.
01-10-2012, 05:18 AM
#8706
What would you estimated a good range of fdr would ne for me to get pinions? I was thinking like a 5.0 through 6.0 to start? Im buying all fresh gear this season and using the v3 17.5 boosted touring. Oh...anyone know any pinion that are cheaper that $5 each?
01-10-2012, 05:56 AM
#8708
Tech Addict
01-10-2012, 09:34 AM
#8710
I have experienced the same thing with the V3 motors. My first two SP V3 17.5T motors were really different. One had to be geared around 6.5 FDR and the other I could gear around 5.0 with no issues.
Actually I tried doing the FDR 5.0 on the first one, and it died. But the other one were going strong with low temps and more power.
Actually I tried doing the FDR 5.0 on the first one, and it died. But the other one were going strong with low temps and more power.
Did some testing at our local track today, tried 2 different MMM 13.5 motors and was quite dissapointed with the results.
Both motors used the same FDR and boost settings but one was miles ahead in terms of top end speed compared to the other. should I expect such a big difference between motors?
Both motors used the same FDR and boost settings but one was miles ahead in terms of top end speed compared to the other. should I expect such a big difference between motors?
He was found to be cheating at the last ETS and was removed from the rankings.
BUT i have dyno'd a lot of my own motors and position of the end bell makes a huge differance , the end bell can go on 3 places and i moved it round untill i got the best RPM's this made a differance of 5000 RPM on some V3 motors , Also shim the rotor towards the sensor , at higher revs the rotor will move away from the sensor and you can get missed senses on the motor , tis drops the revs down slightly.
This is the world of 0 timing / fixed gearing we are in now in Europe
01-10-2012, 11:06 AM
#8712
Tech Apprentice
sp v3 5.5 is too much for my happy trigger finger. Will i see a diffrence if i buy a 6.5 or should i buy a 7.5?
And does anyone know who has these in stock? Cant find it in stock at the biggest US/HK shops.
Tnx
Marcus
And does anyone know who has these in stock? Cant find it in stock at the biggest US/HK shops.
Tnx
Marcus
01-10-2012, 12:08 PM
#8714