Parts Wanted Collet needed for .21 car engine. where to get them .

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Davidkrienke

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Jul 7, 2018
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what's the best way to adapt the car style crankshaft to inboard use. Novarossi is out of the collett. is there any other option? Does anyone have collets besides nova.
 

RaceMechaniX

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David, most people cut off the 5mm snout used for clutch bell bearings and then just use a 1/4-28 collet. Some have used a nut to tighten the flywheel and then a 5mm smooth bore coupler for a motor on the snout. I don't recommend this as it cantilevers a lot of mass further out from the bearing.
 

Davidkrienke

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Jul 7, 2018
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David, most people cut off the 5mm snout used for clutch bell bearings and then just use a 1/4-28 collet. Some have used a nut to tighten the flywheel and then a 5mm smooth bore coupler for a motor on the snout. I don't recommend this as it cantilevers a lot of mass further out from the bearing.
That was what I am seeing is the flywheel would have to be super thin to make it work it a regular collet. I was hoping someone else made a collet like the nova that can be slid in the flywheel to meet the threads.
 

Brandon Atwell

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Mar 11, 2012
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Yea the flywheel description is somewhat misleading, I’ve order from here before and their notes are very vague.
I can’t 100% promise it’s the entire setup like you want, but this is the exact part number I ordered for my car conversion kit I did.
But yes, how the kit works is you cut off the smooth end of the crank shaft. The fly wheel drops on and then a thread extender screws in. This secures the flywheel and gives you the standard threads to use any collet of your choice. So, you would still need to order a standard marine .21 collet. I believe Zipp Kits or speedmaster will have one.
 

Brandon Atwell

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Mar 11, 2012
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Here’s the link from Novarossi Marine USA. Still in stock here. This is what the kit looks like.

Just noticed Novarossi offers two kits now. When I did mine they only had the 29650 kit, which I linked. It says it’s for .12 engines, but worked on my .21. Not sure if they have been updated and changed since then.
 

Brandon Atwell

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Mar 11, 2012
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774503C7-5CF9-452B-B101-722A4148B143.png
Sorry for the excessive posting.
The kits are the same, except the flywheel. The locking nut and cone will still fit. I have personally used the 29650 kit with no issues on a .21.
 

Shane Bastick

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Jan 11, 2011
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Hi James,

29050/k says sold out on your site, do you still have some
 

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