holmes hobby retro sport specifications

[nicksincrc]

Hi, I'm just wondering if anyone knows the specifications of the HH retro sport 21t bushed. It's just for a comical hornet so I don't want anything stupid just looking for options with similar to tamiya sport tuned specs and can't find any for this motor 

 

cheers 

[Twinfan]

I'd be interested in this too.  I had a hunt around on the web for info a little while back and there's virtually nothing on specs, how good they are etc.  For a very similar price I've bought a few LRP V10 Spec.6 motors instead as at least I can get rpm figures and recommended gearing.

[ad456]

I’ve send them a message asking and will let you know if I get a reply. I asked about all of them all instead of just the 21t. 

[nicksincrc]

7 hours ago, ad456 said:

I’ve send them a message asking and will let you know if I get a reply. I asked about all of them all instead of just the 21t. 

thanks 

[ad456]

So this is the reply in full:

Thank you for your email! It prompted me to drop what I was doing and to go do the testing and update the chart FINALLY!

You'll find the Retro Sport 540 motors have been added to the CHART.

You'll see that they don't have a really high Kv comparatively but you will feel the difference in torque. Our motors do include a flux ring and the removal of that will gain you 1500RPM. The flux ring is what's stickered though 🙁

So, the fastest Retro Sport would be the 15T without the flux ring and it tests at 30,700 RPMs at 10V pulling 9.6A (with a small propeller used for tach'ing) We'll be featuring some Tamiya models in an upcoming video!👍

Thank you,

Jordan

https://holmeshobbies.com/motor-recommendations

So there ya go folks. It’s now on their site. 

[Twinfan]

Interesting, thanks.  So the 15T needs modifying to get 30,700rpm and 2900Kv at 10V?  Without the mod and at 7.2V it would be less than 1400Kv and lower revs?

For comparison the LRP V10 SPEC.6 14T is 33,500rpm and 7.2V out of the box, and the Tamiya Super Stock RZ 23T and 27,500rpm also at 7.2V.

On paper the Holmes Hobbies motors don't sound that great, or am I missing something?

[ad456]

I’m think out loud here and not really wanting to muddy the water(only trying to be objective) but Holmes state what they test with. What do Tamiya and LRP use if anything? I don’t know but no load at all will create strikingly high numbers. 
There is also a question of torque, if a motor is meant for a pan car and you put it in a monster truck it will likely be rubbish as it likely won’t have the torque. 
We’re also comparing rebuildable mod motors against sealed cans. The Tamiya motor will have timing on it I’d bet, I’ve not looked up the LRP. 
I’d bet the Tamiya motor will need attention every 10-20 runs while the Holmes will go until the brushes die then off to the bin.

Point is I feel we’re comparing different beasts and RPM and Volts alone is not the full picture. 

[Twinfan]

I'm just thinking aloud too!  All fair points and you're right the Tamiya specs are unladen, I don't know about LRP.  Both LRP and Tamiya have adjustable timing so they probably have a bit added as standard.

I guess the way to think of them is as lower turned Sports Tuned and Torque Tuned motors.  Whether they're any better/faster/torqueier is the question I guess!

[ad456]

I’d say the HH will be a good budget motor as there’s little they do wrong. 
The LRP and Tamiya will need more attention/upkeep being Mod motors. Also likely to pick up more dirt with the vents along the can. 
I think I have that Tamiya motor in my Wild One, it came to me in a job lot of other stuff. It gets very hot but I have no idea what gearing I have on it, it’s been on the shelf for a while in the “to sort out” pile. It could be I was running like an animal too but likely I’ll be lazy and throw a Torque Tuned sealed can back in there and then rebuild the motor for something else. It’s a top looking motor though which is why it went in there originally. It could just need a comm trim but I digress.

I guess my best recommendation is have a look through the showrooms on the main site and see what others are running in the comicals and wheelies and base yer choice from there. Too hot a motor in a comical will end up on its back all day I’d reckon. 

[nicksincrc]

thanks , I'm running a 20t pinion so not much wheelie , think it's 18/1 fdr. Don't want anything above 2600kv really like a sports tuned which off those figures would be the 17t which seems crazy . I'm assuming those figures are with the flux ring?

[ad456]

I’d say they likely are with the ring hence the “gain 1500kv” statement, 1500kv at 7.2v is 10,000rpm which is surprising. I never realised it made that much difference. 
I’d say go for whatever is looking where you want and if it’s slow you can remove the ring for a bit more go.
I did this on the FTX 15t 550 motors on my modified Clodbuster and it really does make a difference. I’ll have to remove the rings on my Traxxas Titans sometime and see what 4s does to them, hehe!!

[alvinlwh]

2 hours ago, Twinfan said:

Tamiya Super Stock RZ 23T and 27,500rpm also at 7.2V.

On paper the Holmes Hobbies motors don't sound that great, or am I missing something?

On paper, turn for turn, nothing can beat the SS motors. Realistically, I don't know...

[ad456]

3 minutes ago, alvinlwh said:

On paper, turn for turn, nothing can beat the SS motors. Realistically, I don't know...

Exactly, a HW1060 vs a MTroniks AutoSport is very different, battery discharge rates make a massive difference,  and model weights are a huge factor too. It’s sometimes a bit of a nightmare to decide where to put yer money!

I never really believe the specs but they a fine for a rough guide.

[alvinlwh]

For anyone interested, I had this Tamiya motor KV chart done up a while back when I still cared about this thing. 

[bRIBEGuy]

HH stuff tends to be very good for the price, and pretty honest with specs.  The Retro Sport motors are also less than 1/2 the cost of the LRP or Tamiya SS, so is this really a fair comparison?

Will a $15 motor blow a $35 motor out of the ground?  Unlikely.  But that doesn't mean it can't punch above it's weight and represent an excellent value.

Just my 2 cents...

[ad456]

In the uk the HH is about £24 and the LRP is £27 so more comparable from a price point at least. The Tamiya is £45 so it is chunk more expensive.

Certainly not all equal beasts and I’d doubt many are meant for similar applications. 
 

I’d say the HH would still be great with a lot less maintenance needed. 

[ad456]

So I got an email this morning, and have corrected the information given above. 
this was the email 

I must apologize for some incorrect information. At some point during my COVID absence it occurred to me that I may have typed "Kv" when I meant RPMs. You may have assumed correctly and corrected my mistake mentally, but I wanted to set the record straight, nonetheless. .

Removing the flux ring will gain you around 1500RPM for the Retro Sports, not 1500Kv. 1500Kv extra would be amazing, wouldn't it?

Jordan

[Sogogi]

I will need to order some…. Dang it. I have bought like 7 brushed motors in 2weeks..

[Sogogi]

By the way, I realized they recommend 2s lipo or 7 cell nimh for their retro sport motors.