jp79er Posted September 17, 2014 Share Posted September 17, 2014 (edited) Well today was a nice day out so car in hand and my 3S LiPO fully charged....I set out to se what the speed difference is from my NiMH.. Now I know that my NiMH's on Concrete will max out at 28mph..........which is fun.... But today was the ultimate test....so after getting the car up and running for about 5mins...making sure it was running fine...I then strapped my phone as my Data logger (which recorded the above speed) and set out with few fast passes on Grass (Avoided the hard stuff for the moment) and I was pleasantly pleased with the results: 39.1mph....and plenty of wheelie popping....and great fun Edited September 17, 2014 by jp79er Quote Link to comment Share on other sites More sharing options...
jp79er Posted September 17, 2014 Author Share Posted September 17, 2014 (edited) Edited September 17, 2014 by jp79er Quote Link to comment Share on other sites More sharing options...
Noj Posted September 17, 2014 Share Posted September 17, 2014 Good improvement. One thing tho, your lipo is 3S not 3c Quote Link to comment Share on other sites More sharing options...
jp79er Posted September 17, 2014 Author Share Posted September 17, 2014 (edited) that always foxes me.....I keep thinking 3c for 3 `C'ells.....what does the `s` actually mean? Any way onward and upwards......next get over 40, but think running on tarmac should see that I reckon....if so next stop 45mph Edited September 17, 2014 by jp79er Quote Link to comment Share on other sites More sharing options...
Noj Posted September 17, 2014 Share Posted September 17, 2014 S for cells, which of course makes so much sense Quote Link to comment Share on other sites More sharing options...
EpicLURcher Posted September 17, 2014 Share Posted September 17, 2014 I know, said the battery industry, let's use C for how many cells and C for charge and discharge rates...... Quote Link to comment Share on other sites More sharing options...
Tug Posted September 17, 2014 Share Posted September 17, 2014 3S as in three cells in SERIES! 2 Quote Link to comment Share on other sites More sharing options...
EpicLURcher Posted September 17, 2014 Share Posted September 17, 2014 Maybe, But what's a 1s? Quote Link to comment Share on other sites More sharing options...
Tug Posted September 17, 2014 Share Posted September 17, 2014 One in series. Quote Link to comment Share on other sites More sharing options...
EpicLURcher Posted September 17, 2014 Share Posted September 17, 2014 So as I understand there are several cells in a 1s pack that are connected in series to boost mah. So a 3s pack will have more than 3 cells, it'll have 3 lots of cells wired in series connected in parallel? Quote Link to comment Share on other sites More sharing options...
Tug Posted September 17, 2014 Share Posted September 17, 2014 1S1P is one cell. 1S2P is two cells in parallel. 2S1P is two cells in series. 2S2P is four cells, two cells in parallel connected to another two cells in parallel, but the two sets are joined in series. So despite having four cells in total, it's still only a 2S pack. 1 Quote Link to comment Share on other sites More sharing options...
EpicLURcher Posted September 17, 2014 Share Posted September 17, 2014 Ok thanks Actually makes a lot of sense! Quote Link to comment Share on other sites More sharing options...
DeadMeatUK Posted September 17, 2014 Share Posted September 17, 2014 I'm with Tug, I've made up a couple of 2S3P Li-ion packs for the losi 5ive Quote Link to comment Share on other sites More sharing options...
Noj Posted September 17, 2014 Share Posted September 17, 2014 Tug tells it like it is. Long live Tug! Quote Link to comment Share on other sites More sharing options...
ajlovering Posted September 19, 2014 Share Posted September 19, 2014 Why not enter your car in the next ROSSA speed event and make your speed official!. Check out www.rossa.org.uk for details ROSSA Officially Fast Cheers 1 Quote Link to comment Share on other sites More sharing options...
Tug Posted September 19, 2014 Share Posted September 19, 2014 I'm with Tug, I've made up a couple of 2S3P Li-ion packs for the losi 5ive Just out of curiosity, why did you choose Li-ion? Quote Link to comment Share on other sites More sharing options...
jp79er Posted September 19, 2014 Author Share Posted September 19, 2014 Why not enter your car in the next ROSSA speed event and make your speed official!. Check out www.rossa.org.uk for details ROSSA Officially Fast Cheers I think mine will come under open wheel electric class...........121.96mph......think my current truggy will disintegrate at that speed...LOL...but would be fun trying though.... Quote Link to comment Share on other sites More sharing options...
jp79er Posted September 19, 2014 Author Share Posted September 19, 2014 (edited) 90mm tyre dia. is a bit stingy for buggies and truggies....should be 4" IMO.... But change the following: 22t to 24t Pinion 3065kv to a 4500kv 6c battery and try and fine 50mm x 90mm on a 2.2 rim that will be tough.... and my theoretical is 131.8mph....... Edited September 19, 2014 by jp79er Quote Link to comment Share on other sites More sharing options...
Tug Posted September 19, 2014 Share Posted September 19, 2014 6S! Not 6C! 1 Quote Link to comment Share on other sites More sharing options...
jp79er Posted September 19, 2014 Author Share Posted September 19, 2014 damn that `s' and `c' business....lol Quote Link to comment Share on other sites More sharing options...
Tug Posted September 19, 2014 Share Posted September 19, 2014 Quote Link to comment Share on other sites More sharing options...
DeadMeatUK Posted September 19, 2014 Share Posted September 19, 2014 Just out of curiosity, why did you choose Li-ion? Was given a box of used cells from work, they replaced every handheld scanner battery knowing that there was lots of good ones still in circulation. Otherwise I would have brought Li-Po. I use them in my nitro's, 5ive and Flysky TX 1 Quote Link to comment Share on other sites More sharing options...
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