Losi Xcelorin 17.5?? anyone heard anything???

[mattsedgley]

As the tittle says anyone heard anything about these?

Matt

[Simon Crabb]

They are made by Novak. They're sintered, they have removable sensor lead. They are cheaper than the equivalent Novak. They're on the ROAR list. They won some big US race somewhere in some class or other.

Worth trying I'm sure, they can't be that much different can they?

The US guys on this thread seem to rate them

www.oople.com/forums/showthread.php?p=137151

[keitheroonie]

This is all I've found so far, looks good though

www.oople.com/forums/showthread.php?p=137151

www.hobbytalk.com/bbs1/showthread.php?p=2451621

[keitheroonie]

how much and where Matt?

[Simon Crabb]

Just over £50

[mattsedgley]

ordering tomorrow if you fancy one for the money - from what i can make out its a £52 novak ss 17.5 with a detachable sensor lead - and improvement on the novak

they all seem to be made in the same factory

matt

[Simon Crabb]

And, get this, the Losi is the right colour too! BLUE!

[keitheroonie]

sweet, I'll let Matt do the testing before I buy one for Ollie

[lesbaldry]

Interesting stuff..price sound good too...I like the idear of the detatached lead....as for the colour.. ....sounds like 17.5s are making an impact??

[Simon Crabb]

It's a jolly awkward thing to spell too, which doesn't help when searching on it! Losi Xcelorin is the correct spelling.

Some interesting findings when googling the right spelling:

rctopnews.net/?p=882 (picture showing separate sensor lead - perhaps Novak may adopt this too? maybe an 'industry standard' is being slowly set?)

Quote from www.rctech.net/forum/showthread.php?p=4478498:

"Losi Xcelorin Sensored BL Motors = Hacker Brushless E40 BL Motor.

I recently acquired a Losi 13.5 Sensored Xcelorin BL Motor and a Hacker Brushless E40 17.5, took both apart, and other than the color of the anondizing and the removable harness on the Losi motor, they are 100% identical. These are made by the same manufacturer.

I'm not complaining here, just making everyone aware that if you want a Losi Xcelorin Sensored BL motor and can't find one, pick up a Hacker Brushless E40 motor, same thing."


I've seen stucff on the web about Hacker motors, they seem well regarded too. I guess Novak is turning out motors, letting people rebrand them, it's all money in the bank for Novak - they've got a lot of R&D costs to pay for!

[lesbaldry]

Hacker motors are big in RC aircraft ,my first experience of BL motors was with this make many moons ago...very very expensive very very powerful(£200+ 540 sized motor)..they started to branch out into the RC car market a some while ago,I dont know why they did'nt catch on??
they have a super pedigree and if you race or compeet in the RC aircraft world Hacker were the motor to use!

Hacker if I remember correctly use to rate their motors in a "can size" and more importantly in Wattage ouput,I think this is what the car world needs to form classes rather than a "labled wind" with differing outputs??....just my thoughts

I still have one in a pylon racer and have been tempted in the past to use it at Calshot but i fear it may tear the transmission out of a TC car plus the speedo is more of a "on off switch"..scarey stuff

[Mark Townsend]

So in my quest to clean out my bank account I need a 17.5 and have 4 options.

Novak, LRP X11, Losi and Speed Passion. Anyone have good or bad experiences with any of them?

[lesbaldry]

Sept 7, 2008 14:29:31 GMT Mark Townsend said:

So in my quest to clean out my bank account I need a 17.5 and have 4 options.

Novak, LRP X11, Losi and Speed Passion. Anyone have good or bad experiences with any of them?

I have watched with interest the various makes in the club perform and to be honest non of them stand out...I run the LRP version and have had no probs at all,as is the same with the other makes.... still early days though.

[mattsedgley]

me and simon use the Losi/Novak in disguise - personally it's fantastic! plenty of power!!!

Matt

[keitheroonie]

Ollie's got the LRP X11 in his car and loves it.
I may buy the Novak, no particular reason though, just because I like Novak.

[Reuben]

i run the speed passion and have done for last few weeks at running stock........... no problems. LOVELY motor, it performed well today and showed how smooooooooooooooth they are. but performance, doesnt seem much in it, alot of people seem to say the Novak is slightly quicker, but u dont know until you try it i guess.

[lesbaldry]

Sept 7, 2008 18:25:50 GMT Reuben said:

i run the speed passion and have done for last few weeks at running stock........... no problems. LOVELY motor, it performed well today and showed how smooooooooooooooth they are. but performance, doesnt seem much in it, alot of people seem to say the Novak is slightly quicker, but u dont know until you try it i guess.

The Novaks one motor I would have liked to of got my hands on!..Chris's did seem slightly quicker but all cars look quicker than your own from the track side

[Chris N]

Les , If you want to have a go with my Novak...be my guest...I havn't used it much recently as I am trying to get the gearing for my Cyclone..its way too high...the motor is flat out before the straight!...with a 60Spur and 40 Pinion...!

[TryHard]

hmm... might have to pick one of these up... at least it's blue, unlike the LRP!

[mattsedgley]

Terry will have two in the shop next week i think!

[lesbaldry]

Sept 9, 2008 20:40:50 GMT Chris N said:

Les , If you want to have a go with my Novak...be my guest...I havn't used it much recently as I am trying to get the gearing for my Cyclone..its way too high...the motor is flat out before the straight!...with a 60Spur and 40 Pinion...!

Cheers Chris, I would like to back to back it with my LRP on sunday if I may "17.5 class in the RRC if its allowed"...Ill try and not forget the 4.5 too this time

[Mark Townsend]

Novak 17.5 ordered. I'll be ready to join in the fun once i'm fit to move again.

So back to the gearing.... how big a pinion and how small a spur gear am I looking at? FDR of 3.5 was kicking about when I last raced.

[Reuben]

my sp i started at 3.8 and went down from there (aka up a few pinion teeth)

so that seems a good place to start with......

other people that may know your driving style may be able to advise you better, but between 3.5 and 4 seem to be the window....

[Simon Crabb]

Sept 10, 2008 20:26:23 GMT Mark Townsend said:

Novak 17.5 ordered. I'll be ready to join in the fun once i'm fit to move again.

So back to the gearing.... how big a pinion and how small a spur gear am I looking at? FDR of 3.5 was kicking about when I last raced.

Yeah, the sort of window Reubes mentioned, I'm at 3.8 ish, punchy but perhaps a little lacking in top end, might go to 3.7ish. Every motor and every driver is different though. Start at 4.

Also, I've noticed on 17.5 that the ratio with the highest 'safe' temperature isn't necessarily the best ratio, they don't seem able to pull the highest ratio possible according to temp.

And don't forget speedo settings, the joy of brushless means that when you change them it's actually noticeable! I've turned punch right on up on the 17.5.

[Reuben]

my punch is right down at 1 or 2 i think. and the motor still seems to have enough grunt out of the corners.

but then as my punch is lower, my fdr is lower that yours simon.

i guess they kinda go hand in hand

[lesbaldry]

Mark..Novak 17.5 FDR...I think Chris is running his close to 3.7 with low to medium punch?...Hes going to let me have a play with his motor so Ill keep you informed..The lads who run the various makes all seemed to be between 3.6,3,9

These little motors seem to be quite forgiving with Fdrs,ie increase a couple of teeth and the temp dont change much..prehaps start at 3.7 and play with punch?..sort out the top end speed on low punch,increase punch and moniter temp..thats how I went about it

[TryHard]

Reuben... whack it up I've still got my 10.5 on 6-7 on the speedo, and there is a noticeable difference between the settings.

If I was running a 17.5 (and it looks like I'll be doing so at some point) it would be on 8, and never move! Then I'd gear up to where I felt comfortable with the temp... a different way round to Les, but the same effect

[Simon Crabb]

Okay, when I first tried the 17.5 (Losi) I had my punch at 1 (after running 10.5/13.5), and I geared it 'to temperature' at 3.6, and it seemed to get quite toasty and not really pull the ratio.

So I dropped back down to 3.8, and it was punchier.

Then recently, as per Ed's suggestion, I thought I'd put the punch up, and tried it, step by step, until it's now on max (which is only 5 or 6 on my first generation Sphere), and it was punchier - of course - and much nicer to drive.

Today I tried gearing it up again, and I ran out of pinions at 3.57 and it was quick, still nicely punchy, and still well within temperature too. I'd have tried further, need more big pinions first.

And it didn't seem to 'go off' 2/3rds through the race. Maybe cos it was a cooler day, but it wasn't that cool today!

I'm wondering what the difference between my first gen speedo and the newer ones are. Am I missing something, or are the newer ones more granularity on the settings?

[Mark Townsend]

Naturally having a browse on te excellent Speedtech website this mornig and discovered these little gems (not lettuce!)
www.speedtechrc.com/store/ebproduct.asp?catmainid=653

Basically a range of 64dp pinions from 50 to 65 teeth made by PRS. Not a company i've heard of before but if anyone knows a UK supplier can they post it.

Failing that I'm happy to co-ordinate a bulk order for these. Price works out at around £3.50 and delivery is usually a standars $33 to the UK. Obviously a big order would be needed to keep the postage factor to a minimum.

So if anyone is interested let me know.

Mark

[TryHard]

hmm, might be interested in some... gonna need a baby spur and a BIG pinion to gear this thing correctly on the 416... same as yourself mark! (94/54 gives 3.578 )