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Old 05-15-2004, 03:43 PM   #1291
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Recently I switched from SMC to pro-match. I was curious about pro-match's reccomendations to keep at least some charge in the packs until the next use. Why do you guys recomend this method for storing packs? All of the other matchers seem to store them by taking them down to 5.4v per pack.

By the way, pro-match packs are by far the best I have ever used and the best value I have bought. I like that you guys are the only matchers who take their numbers from 5A so the numbers actually end up being better than other cells done at 6A
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Old 05-15-2004, 04:14 PM   #1292
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Well I actualy do not keep charge in mine. I just leave them like the sit from the day of racing and discharge and tray them the night befroe I run them again. I think they may have that method left on the site as the "safe" method.
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Old 05-15-2004, 08:17 PM   #1293
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Questions about heat...

Motors & Batteries - same question....
After a race, my motor seemed extremely hot to me, but I don't know what should feel right. Does anyone have any ideas about actual temperatures? I still have my temp gauge from my Nitro days, and I might as well find a use for it in electrics... The same goes for batteries as they come off of the charger.

Thanks!
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Old 05-16-2004, 06:25 AM   #1294
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Some motors run hotter than others. I know the TOP based (Orion/ Peak) motors run hotter than others. I try to run my motors under 150 degrees. Notice I said try. When your motors start getting hotter than that they will start to fade at the end of the race.

The battery temps will factor to how many amps your motor is pullling and the IR of the battery. The higher the amp draw of the motor the hotter the battery. The higher the IR the hotter the battery.

Thats my 2cents. Next!
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Old 05-16-2004, 07:35 AM   #1295
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you got that one Chill, Thanks! I'll be over here if anyone needs me,LOL


















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Old 05-17-2004, 06:27 AM   #1296
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Old 05-17-2004, 10:40 AM   #1297
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Old 05-17-2004, 01:52 PM   #1298
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Talking Good Afternoon Guys!

OOJ~ we recommend the 5.4v as well. Just to make it easy for those that don't monitor their packs as well as others we say put about a 5 min charge in them.
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Old 05-17-2004, 02:05 PM   #1299
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So ballpark numbers here...

motor temperature after a race should be around or under 150 degrees F.? If hotter than that, gear up on the pinion?
I don't remember the exact temps I was seeing, and it was a very hot day, but I thought I remembered seeing 217 on the motor - I could have been hallucinating though... I did literally blister my finger when I touched the motor picking the car up off of the track.

The motor is a Monster Stock.


on the battery temps, I was talking about during/after charging.
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Old 05-17-2004, 02:14 PM   #1300
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waassssssssuuuppppppp
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Old 05-17-2004, 02:34 PM   #1301
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Back Again
Just had a race meet sunday just gone i was at a uk track called barham down in kent. that`s down the bottom to the right if you look at england from a US made sattelite
I decided to race 27t just for a laugh with my 1 mate,using my club cells(promatch1.167,kmr1.166) that i sell in the uk. I came with in 6 secs of track record set last year in a national event(this is for the best drivers in england). So i was quite happy coming from there knowing the batts went that well 27t motors don`t go fast unless there is a good power source .
By the way i had my shorts on that day(yes it was sunny)
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Old 05-17-2004, 02:51 PM   #1302
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LOL @ MR JOLLY!! Haven't heard from you in a while, drop me a line sometime!

rctoyguy: If it is too hot ....smaller pinion.....
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Old 05-17-2004, 03:55 PM   #1303
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217 degrees!! Like Promatchrcr said, smaller pinion. What car are you racing? I we might can give you a starting point.

Battery temp - It should be around 120 degress when it peaks. New batteries will get a little hotter for the first few charges.f
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Old 05-17-2004, 04:06 PM   #1304
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I wouldn't swear to that 217 degree reading, but that is what I thought I saw.

It is a XXX-S running a Monster Stock motor - I will have to double check, but I believe I am running a 23t pinion on the stock spur. The manual recommended a 25t for stock motor, but I went down 2 teeth on a recommendation from a very highly regarded race guru... I also have an 18t pinion, and I know I need to get a few more to have more options - planning on doing that this Saturday.

Several of the folks I have talked to run 64 pitch gears, so that makes it tought to do a comparison for the final drive (since I am running the 48 pitch) - does anyone know how to calculate that? Or is that asking for priviledged information?

Thanks for the battery info - I don't remember what temps I was seeing, but I will keep an eye on them.

Thanks for everything!

-- chill will - have I met you? I was the beat up silver XXX-S at the last Oak Mtn race - obviously the new guy...
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Old 05-17-2004, 04:21 PM   #1305
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rctoyguy,
With the monster motor, try a 22-23 roll-out with the XXXs. Stock roll-out is usually arround 27 but that motor is geared lower because it is a high rpm motor...I think!!
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