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JK 64p crowns for Can-Am Plus?


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#51 gotboostedvr6

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Posted 08 September 2014 - 07:47 AM

Were you using axle tubes?

Was the motor soldered to the mount?

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#52 wbugenis

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Posted 08 September 2014 - 08:58 AM

The centerline height of the axel should be equal to the centerline height of the motor shaft.
Some of the F-1 Euro guys have a jig to ensure this. Otherwise you will unintentionally hypoid the mesh.
A little hypoid is good - too much and you strip the gear
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#53 JimF

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Posted 08 September 2014 - 11:52 AM

IMO....this is a heck of a lot of discussion about a bad idea.

 

Just sayin'...................


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#54 MSwiss

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Posted 08 September 2014 - 03:28 PM

On Sunday, I tested a JK 64(72)P 30-tooth crown(green color) with a ARP 72P angled 11-tooth pinion.
I didn't put a gear saver.
After 2 or 3 laps at mild speed, the teeth of the crown were almost gone.
 
Haruki

Haruki,
I'm not surprised.

While I was discussing another matter with Stu Koford, I asked about the chance of a 24T, 48P crown.

He wanted to wait to see how well the class takes off.

Just curious, if he came out with one,how many would you buy?

It would be .600" dia. which would allow .694" tires.

How is the existing Koford gear working out for your racers?

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#55 bbr

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Posted 08 September 2014 - 03:52 PM

A 2.4 ratio seems to be what is need with the PS/FK. I ran my CA+ test sled with that ratio. 

The cut down 28T is nice. I'm using one in CA and it works well.

I've got five CA+ chassis in various state of build, so I would need about 10 of the 24T personally.


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#56 usadar

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Posted 08 September 2014 - 05:18 PM

Haruki,
I'm not surprised.

While I was discussing another matter with Stu Koford, I asked about the chance of a 24T, 48P crown.

He wanted to wait to see how well the class takes off.

Just curious, if he came out with one,how many would you buy?

It would be .600" dia. which would allow .694" tires.

How is the existing Koford gear working out for your racers?

Kamo & I tested 9-26(2.88) & 9-27(3.0) at 13.6 V on our Gerding King.

Almost same lap times on the center lanes around 3.85-3.9's, while 27, to me, seemed easier on Black & Red at 4.0's.
The cars were so stable that we gave them a blip before the 90 & full punch until the Lead-On.
Maybe the cars had too much down-force with a full 1/2" wide spoilers.

For rear tires, we ran Alpah Medium Full Hub wonders of .750-.760.

With 24T crowns, you don't have to grind down 27T for 3.0 ratio(8-24), having more choices of 9-24(2.66), 10-24(2.4).

In Tokyo, I am thinking of racing Retro Can-Am & Can-Am Plus as regular classed at our monthly races on Sunday.
Now the Saturday before the raced-day is just a free practice day but we plan to race either F-1, GTC or Stock-Car in the afternoon.

 

24T crowns can be used not only for Can-Am plus, so we would buy 50-100 of them per year.

 

The present Koford 28T crown is very well accepted by our racers here.

 

Good Racing,

 

Haruki


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#57 stemmy

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Posted 08 September 2014 - 05:42 PM

I prefer the koford more than parma and red fox. Any plans for 27and 29 tooth gears.
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#58 Jason Holmes

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Posted 18 September 2014 - 02:09 PM

Mike

 

Tell Stu make it they will sell and a 25T also for Can-AM out here in CA

 

Jason



#59 usadar

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Posted 18 September 2014 - 03:53 PM

Mike

 

Tell Stu make it they will sell and a 25T also for Can-AM out here in CA

 

Jason

9-25(2.78) ratio would be good for Can-Am & F-1 powered by Retro Hawk at Buena Park(SCRRA).

 

Haruki


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#60 gotboostedvr6

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Posted 18 September 2014 - 07:19 PM

FYI gears with more teeth last alot longer... food for thought.


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Those who work for a living are being quickly overwhelmed by those who vote for a living.

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