Aluminum pullies 21t Schumacher cat(s)

[Raul Garcia]

My latest and greatest addition to my car. New 21t alloy pullies and kevlar rear belts 6mm wide.

[brian s]

where did you get them from.

[Raul Garcia]

http://www.sdp-si.com/

[brian s]

did you have them specially made, or do you have the part numbers for them.

[isobarik]

yeah took my ide and used it ha ha ...really i was thinking of have it made and looked at sdpi but i have 3m belts in the lazer and was note able to find the right stuff.

mvh isobarik

[jeroen206]

https://sdp-si.com/eStore/PartDetail...23&GroupID=217

Are this the ones you used ?

[isobarik]

seems to bee it ...would have been easier withe everything in metric ....

mvh isobarik

[Raul Garcia]

Part # for the pullies a16m021df6004,
the flages has to be turned down to 5/8", and the set screw flange had to be CNC'd to fit into the 8mm ID of the layshaft bearing. I couldnt find a bearing to fit with OEM OD, but 10mm ID. I will be testing today. And the belts are 72t for the short ones. The main front belt it a 323 MXL, but if you uses the MMS front gear like I do, the belts they suppliy are to wide, or to narrow. I do have DIRECT contact info for Bando the original supplier of the drive belts. I will be calling them after the holiday.

[isobarik]

But cant they just cut them in to the right width.
When i talked to http://www.beltcorp.com/ they said they could just cut them into the right width.

So the lazer could have the 3,5 mm front belt.

mvh Isobarik

[Welshy40]

Yup anythings possible, as long as the belt is the same length and the pulley is also the same diameter it can have any pitch that you want.

I would seriously be up for passing on an LA11 layshaft gear for it to be made from alloy. I have a few contacts so would be very interested in finding out if its possible, especially with the little flanges within.

[Raul Garcia]

Originally Posted by isobarik

But cant they just cut them in to the right width.
When i talked to http://www.beltcorp.com/ they said they could just cut them into the right width.

So the lazer could have the 3,5 mm front belt.

mvh Isobarik

Again this is what they had available. They do have stock in the toothed part of a pulley it comes in 4" long part. It is possible to machine any way you want from there. They also sell the flanges. As long as your CNC'st can work with this product, then it should be easy to make it as you want. I went the easier of the two, and adapted what was premade. THe pullies was a direct fit, in width, tooth count, and inner bore size. just minor machining require to install.

I ran my Procat on the track today, and the car worked flawlessly. It is just as fast as the B44's and Lazer FS's runing 10.5 brushless, and I am running 17.5 brushless preparing for our Vintage Nationals in two weeks.

[Raul Garcia]

Originally Posted by Welshy40

Yup anythings possible, as long as the belt is the same length and the pulley is also the same diameter it can have any pitch that you want.

I would seriously be up for passing on an LA11 layshaft gear for it to be made from alloy. I have a few contacts so would be very interested in finding out if its possible, especially with the little flanges within.

contact Rob Dinseler at Stock drive product he can do it.

[Raul Garcia]

My procat is up for slae as is my Cougar 2 works team car. You will get this layshaft in the procat, also has Bosscat pro rear, alloy diff 23mm eccentric adjusters, bosscat tower and camber link bracket. MMS slipper, and MMS frt pulley, along with brand new BUDS orange belt, and a ton of spare parts.

[kaszal]

Hi Raul

Where did you get your machining done for the pulleys?

I run a Schumacher slipper - would the pulley hub intefere with the slipper "hub"?

[Raul Garcia]

they were purchased from stock drive products.com they were from their inventory, but some fabrication to make work. Good luck.

[kaszal]

Thanks Raul... but did SDP do the extra machining or did you get it done elsewhere? Basically if I bought the same parts where could I get them machinined to fit?

[kaszal]

My alloy pullies arrived from SDP.

1. I've found a 10x16x5 to fit the diameter of the pulley shaft but I will need to shorten the length. Will 1mm off each one do it?

2. The holes in the pulley don't line up with the holes in the layshaft. There's two grub screws in each pulley - will these grip the bare layshaft enough or should I get new holes drilled in the layshaft?

I'm also trying their 6mm urethane belts part No. A 6B16M071060