Engine build

[mike lowary]

Got my answer. Splines are different. Must use 08 sprocket with 08 rotor on 08 crank.

 

[outthere]

Entertaining the idea of an aluminum front sprocket is just that. If anything goes wrong, you have aluminum shards where you don't want them.

 

[mike lowary]

I don’t think Any shards in the primary would be good. But if I had to pick. I’d pick aluminum over steel any day. Yes aluminum wears very quickly and you have to change the primary oil much more frequently. I know several people than run them with no problem. There’s is risk involved for sure but sometimes risk comes with the territory.

 

[Cooter]

Can you use your new-er style rotor with your original stator? Are the crank bearings the same?

IMO, I don't think it's worth the extra maintenance for that slight reduction of rotating mass for the sprocket. However, I believe Pur Pony offers a lightened output shaft sprocket, or heck go with a full chain conversion, it's cheap, lighter, and you can pick your ratios.

 

[mike lowary]

I’ve been looking at this a while now. I actually think the 12 primary would feel pretty snappy with 120hp. Top speed would be up in the 150s I believe. Gotta check. Definitely want to keep the belt drive.

 

[mike lowary]

147 mph top speed with 12 primary, 26 tooth trans pulley, 7500 redline. Around 3400 rpm at 70mph

 

[Cooter]

I agree with both. The 12 gearing is pretty quick stock, adding some quality HP's will only make it better:angel:

And I am a big fan of the belt drive. The first thing I noticed in the XB chain conversions I've done was the lack of any cushion. I never had a problem with the sprockets ovalling holes or anything, but no cush drive may be great for a race bike but hard on the street. Makes wheelies easier though! But a harsher ride.

 

[mike lowary]

Finished my aluminum jardine exhaust bracket. Tonight we try anodizing!

 

[mike lowary]

And it’s 115 grams lighter than the original bracket��

 

[Cooter]

Dude, you got skillZ. Looks good!

 

[mike lowary]

Heres what i started with.

 

[mike lowary]

better pic

 

[34nineteen]

Nice work! It polished up well. :black_eyed:

 

[mike lowary]

Ok. Theres a small learning curve with this anodizing thing. However, im gonna call this a win because it IS anodized, just not the color i was going for. Wanted a solid black but got a gun metalish color. Gonna strip it and try again tomorrow.

 

[34nineteen]

What did you use to anodize with? A battery charger?

 

[mike lowary]

Yep. 2/6 amp 12volt. Wanted a trial run before I bought equipment. I’ll probably be anodizing without color on most parts anyways. It looked badass fresh out of the acid

 

[34nineteen]

Just an OG manual charger? What was the donor metal? Magnesium?

Tell me all about it mag-ic mike

 

[mike lowary]

This is the charger i used. I used simple green for cleaning the part, lye for etching, sulfuric acid for the anodizing and distilled water for rinsing. I also used rit black clothing dye. 1.5 hours cooking in the acid at 2 amps. easy off oven cleaner to strip it

 

[mike lowary]

lightened front sprocket

 

[34nineteen]

You've inspired me to re-plate the fasteners and steel brackets on my S1 project.