DIY Crankshaft/SC Pulley Upgrade

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Jan 24, 2023 | 05:20 AM

#21

OzXFR

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From: Adelaide, South Australia

Quote:

Originally Posted by RochaSDS

I found 2 options on the Dayco site.
Both are 90mm x 30mm, but the difference is the centre bore. Either 12mm or 17mm.
I'm thinking 12mm is too small. That would be an M10 bolt.
Can you confirm the bolt is a M16? That would make the 17mm a perfect fit.

OK, another measurement with my trusty rule and Mark 1 Eyeball measurethingy gives me a centre bore of 18 mm.
No idea if the bolt is an M16 or not.

Jan 24, 2023 | 05:38 AM

#22

RochaSDS

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That's exactly it.
The 18mm (or 17mm) is perfect for the M16 bolt.

Jan 24, 2023 | 08:21 AM

#23

RochaSDS

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Hey OzXFR,

I see you've got the Eurotoys crankshaft pulley. If I'm not mistaken that on is 11.8% larger than OEM.
The one I'm having machined is closer to the Paramount / Viezu pulley which is 15% larger.

What size belt did they supply you with?

I haven't bought anything from Viezu / Paramount, but I've been trying to get information from them and they've stopped responding, understandably.

Feb 9, 2023 | 03:58 AM

#24

RochaSDS

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Does anyone out there have the outer diameter of the Viezu / Paramount upgraded crankshaft pulley?

They say it's 15% larger, but I'd like to get the dimension to work with and alter my drawings.

Feb 9, 2023 | 04:58 AM

#25

OzXFR

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From: Adelaide, South Australia

Quote:

Originally Posted by RochaSDS

Sorry for the late reply, I missed your post.
Eurotoys sent me a Gates K080570 belt which is 1467 mm long.

Mar 27, 2023 | 05:28 AM

#26

RochaSDS

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Quote:

Originally Posted by RochaSDS

Does anyone out there have the outer diameter of the Viezu / Paramount upgraded crankshaft pulley?

They say it's 15% larger, but I'd like to get the dimension to work with and alter my drawings.

Anyone???