New Reedy "PT"

[Luke Hobson]

Hi everyone

i've just been loooking on the reedy catalogue somewhere or another and have found the new replacement for the 'new' Krypton
this new 'PT' (platinum) is almost the same as th 'TI' but with 4 magnets,
i didn't have time to see if it had stand up or laydown brushes but i expect it will have standup.

any views on this topic are welcome

luke

[MattW]

The PT is not a Krypton replacement. It is to complement the range. Reedy seem to be saying that the Ti was all things to everyone, but that maybe the Kr isn't, so this is to fill in the gaps.

As far as i can tell the PT has the can and armature from the old Fury series but with quad magnets and a Ti endbell. Hence it is standup brushes.

[KRob]

I don't think the PT's are meant as a replacement for the Krypton's, just an alternative and have been known about by some people for quite a while now.(more options, more things to spend your money on - how cynical :P)
They do seem to offer different characteristics and Reedy have been down this road before with the Sonic motors, where they had both laydown and stand up brushes.
They always went back to standup, I personally think these are better, when I buy a stock motor, first thing I do is file the brushes.

Bah, humbug, Matt's just too fast.

[Luke Hobson]

oh ok i just thought becuase some reedy drivers still preffered the TI over the KR but thank for filling me in.

luke

[Andrew_Carter]

wonder were u saw that luke!? ::)

[super__dan]

Personally I'm quite excited by this. I liked my KR this year but was always sure it could be better. I also for some reason prefer stand up brushes though can't justify why. Well one reason is I found that you absolutly had to skim the KR every 3 runs and really every 2, where as all the stand up brushed motors I have run could get longer even when running Quasar brushes.

I can see me investing in a 10*3 and an 11*2 come spring and them seeing me through all of next season.

Dan

[MattW]

The PT is not a Krypton replacement. It is to complement the range. Reedy seem to be saying that the Ti was all things to everyone, but that maybe the Kr isn't, so this is to fill in the gaps.

As far as i can tell the PT has the can and armature from the old Fury series but with quad magnets and a Ti endbell. Hence it is standup brushes.


I stand corrected - slightly!!

The can looks like a Ti/Fury mutant. The end vents look like Ti, the side vents look Fury.

[Chrislong]

I got a PT 12x2 here now, looks cool. Not tried it yet though.

I had option of KR or PT both 12x2 and chose the PT because of the small diameter comm and stand up brushes - as I beleive the laydown and mid comm gives a little drag brake effect.

Anybody had any comparisons?

I will be using the PT on Sunday in an MR4BC so will let you all know how good/bad/average it is Monday.

Chris

[MattW]

The PT should have major RPM as that is what it has been build for. The quad mag incresese RPM, as does the PT/Fury arm (it's the thin stack one) and i believe that the side velt layout also gives higher RPM than the Ti/Kr style.

Be very interested to hear what you practical experiences are though.

[Chrislong]

I was at a track tonight practising on my own, not brave enough to try it yet as not sure how to gear it. First one of these ive seen..

As it is a high revving 12x2, should I gear it like a 10x2?

Chris

[MattW]

I would certainly gear it down. Yeah maybe more like a "std style" 10 turn. Can't be totally sure as i haven't tried one myself.

[super__dan]

If its going to built purely for revs, do you think it might be more effective in 2wd? As I only run 2wd thats all I'm concerned about ;) Hopefully someone will have one at the first round of the North East regionals on SUnday so I can have a gander.

Actually is it legal yet?

Dan

[Ade J]

Yes the motor is legal Olly Jefferies used one to FTD the first round of the Chippenham Olympiad series.

[Chrislong]

Dan, I will have one on Sunday in my 4wd. Come and find me for a look, I have a red white and blue Yokomo MR4 BC. MRT sticker on wing.

[MattW]

Yes they are legal, aproved on 20/10/03

http://www.brca.org/brca_modified.doc

[steven bough]

I used a 11x2 pi in my 12th at macc & it was very smooth & was easy on the batts,i turned the timming up a bit,& then it came alive.
i would think they would be very suited to 2wd cars because how smooth they are..

[scott taylor]

the pt is a ti arm in a kr can or it might be the other way around

[Chrislong]

No it isn't that basic. Little bit different I think.

But from what i can see on mine:
KR Can but slightly different holes.
TI style endbell but updated vents.
TI armiture

[MattW]

The vent holes are the same as the old fury.

Fairly sure that the arm will generally be the Fury (4mm stack), but they have listed both Fury and Ti on the BRCA list.

[Chrislong]

Used the Reedy PT in Yokomo MR4BC on Sunday indoors at Teesside (See the NE Regional forum, Teesside regional 2/11/2003 for link to some track photos)

The motor was geared 20/84 which was perfect.
Using 3300mah I still had 1/3rd capacity left after each race.

Car was a missile, very smooth although instant power, very revvy. 3 runs and needed skim and rebrush - I think the supplied brushes are very soft, going to try BRM medium brushes next.

Conclusion = 8/10 as supplied
and ballistic!

Ideally, would like to beable to do 5-6 runs before skim.

Chris

[MattW]

Suspect that the supplied brushes are Quasars - it' swhat Reedy have been putting in stand up motors for ages. Personally i hitnk they can be a bit hard on the motor, there is no way you'd get 6 runs before a re-build. Suggest Orion 10/30's.

[Chrislong]

Ok, Orion 10/30's presume these are harder but would the motor perform different?

Im only being Lazy, as its winter, I just want to turn up and play/practise without any pressure or hassle of motor rebuilds and im racing on a budget of £0 til Summer now. I will be skimming and rebuilding motors regular once outdoors.

It'll probably be a lot better once I discover why my Yokomo runs too hot...

[MattW]

Yeah sure it will be a little different with Orions. I use these at club level and can get at least one meeting, often 2.

[Chrislong]

Brilliant, just what the doctor ordered then!

would it cause the motor to be more revvy, would I need to gear the lower or higher than usual?

Cheers
Chris

[MattW]

Not totally sure as i haven't tried back to back looking for that. Just try it the same and adjust as necessary.

[scott taylor]

what timing do you use on the pt as i think mine came with 12 deg but think it should be on about 24 deg not sure though

[Ben Turner]

I think olly would be the best person to ask for that, but i think he has always ran 24deg on ti's and kr's,

Ben

[Chrislong]

Its at 12degree as supplied, and ive left my PT at that.

Chris

[scott taylor]

i used my pt for the first time on sunday at chippenahm and it was great loved it the motor was soo punchy and had good top end at the same time

With the timing i asked Olly what he used and it was 24deg as ben said so i used that and found a big differance.

[Luke Hobson]

from the sounds of it they are definatly rapid!
i was talkin to colin jackson and he says they were great with loads of punch out the corners

luke