302LikesR1 Wurks brushless motors
02-16-2018, 09:23 AM
#601
Try adding timing on the can a degree or two at a time as well. Or find out your internal amp draw as is, then bump it up a few tenths, try again until you get it in the sweet spot. It should be around 150-160 coming off after a main. I have always found R1s like to run at higher heat levels than other cars.
Is this 25.5 VTA, F1, or TC?
Is this 25.5 VTA, F1, or TC?
02-16-2018, 11:38 PM
#602
4.5 for vta seams to tall, I would assume you'd be 3.6-3.7 depending on track size. I know at Champs this year some drivers were at 3.5-3.6 for vta and if memory serves me correctly that was a hundred foot back stretch. I'm new to R1 but anything over a 3.8 looses a ton of top end an motor appears to be at full revs almost entire race.
02-17-2018, 08:44 PM
#603
Tech Master
iTrader: (5)
4.5 for vta seams to tall, I would assume you'd be 3.6-3.7 depending on track size. I know at Champs this year some drivers were at 3.5-3.6 for vta and if memory serves me correctly that was a hundred foot back stretch. I'm new to R1 but anything over a 3.8 looses a ton of top end an motor appears to be at full revs almost entire race.
4.5 is 13.5 territory.
02-18-2018, 10:10 AM
#604
I was running 3.6 on a small technical track in VTA meanwhile the Motiv guys were in the 3.8 range. Definitely try gearing it up...
02-25-2018, 12:59 AM
#605
Anyone experiencing fade on the V16 25.5 motor with 12.3mm high torque rotor?
Running 8 minute mains in F1 on a small 80x40 black carpet track. Motor never overheated, always running with a fan. Starts off great the first 3 or 4 minutes, then fade is quite noticeable. Never exceeds 150F. I'm getting fade as much as 3 or 4 tenths off my last 2 minutes versus my first 2 minutes. A bit more than I'd like.... I upgraded to a higher capacity shorty battery too so I know that isn't the issue. Timing about 55 deg on endbell and 3.07 gearing.
Running 8 minute mains in F1 on a small 80x40 black carpet track. Motor never overheated, always running with a fan. Starts off great the first 3 or 4 minutes, then fade is quite noticeable. Never exceeds 150F. I'm getting fade as much as 3 or 4 tenths off my last 2 minutes versus my first 2 minutes. A bit more than I'd like.... I upgraded to a higher capacity shorty battery too so I know that isn't the issue. Timing about 55 deg on endbell and 3.07 gearing.
02-25-2018, 09:00 PM
#607
I unfortunately do not have a motolyzer. What is the marking at on the endbell? Close to 48? Thanks again.
02-26-2018, 05:12 PM
#608
What is everyone using to set timing, check amp draw, etc. looking to start doing some motor work and want to get the right equipment.
On that same note, what is a good timing setting for 25.5 TC/VTA and 21.5 TC/USGT. Also amp draw, what am I looking for?
On that same note, what is a good timing setting for 25.5 TC/VTA and 21.5 TC/USGT. Also amp draw, what am I looking for?
03-03-2018, 06:04 PM
#612
You are over geared and over timed and at this point you need to have the rotor checked for strength. I run 3.07 gearing for 200' of full throttle. For carpet 3.6/3.7 is where I would start. 46 degrees of timing
Anyone experiencing fade on the V16 25.5 motor with 12.3mm high torque rotor?
Running 8 minute mains in F1 on a small 80x40 black carpet track. Motor never overheated, always running with a fan. Starts off great the first 3 or 4 minutes, then fade is quite noticeable. Never exceeds 150F. I'm getting fade as much as 3 or 4 tenths off my last 2 minutes versus my first 2 minutes. A bit more than I'd like.... I upgraded to a higher capacity shorty battery too so I know that isn't the issue. Timing about 55 deg on endbell and 3.07 gearing.
Running 8 minute mains in F1 on a small 80x40 black carpet track. Motor never overheated, always running with a fan. Starts off great the first 3 or 4 minutes, then fade is quite noticeable. Never exceeds 150F. I'm getting fade as much as 3 or 4 tenths off my last 2 minutes versus my first 2 minutes. A bit more than I'd like.... I upgraded to a higher capacity shorty battery too so I know that isn't the issue. Timing about 55 deg on endbell and 3.07 gearing.
03-04-2018, 01:38 AM
#613
I've never heard of anyone running 3.6/3.7 gearing for F1 in 25.5, even on carpet...
But I will try 46-48 degrees and possibly ~2.8 on my next outing.
But I will try 46-48 degrees and possibly ~2.8 on my next outing.
Last edited by Dan; 03-04-2018 at 01:50 AM.