Frame and Engine Work

Per
Update by Per Schroeder to the LeGrand Mk 18 project car
Apr 16, 2009

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The rear framework has been welded to support the new differential.

We sprayed the framework with POR-15's gray color, which is a little darker than the original finish.

The Kawasaki KZ-series engines are pretty easy to work with. Larger-diameter bores will help us reach 1000cc.

We finished welding the LeGrand’s rear framework to support the new differential. Afterward, we gave it a coat of POR-15 paint. POR-15 provides a nice, tough finish that is theoretically impervious to fuels and solvents.

Next up, we’ll rework the KZ850 motor so that it displaces a full 1000cc—that’s the legal limit for our car in B Modified. Our plan is to replace the cylinder block and pistons with larger-diameter bores.

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Comments
Per Schroeder
Per Schroeder PowerDork
4/15/09 7:49 a.m.

It's actually pretty thin, about as thick as a combination of primer and topcoat, but not as thick as a powdercoat. I like that if I need to fix something, I can just touch it up with a brush. Also, since it's nice and fresh, I will be able to see cracks a little easier.

I'm starting to strip the paint off the rest of the cage, there are at least 5 layers on there. yuck.

Per Schroeder
Per Schroeder PowerDork
4/16/09 12:25 p.m.

We finished welding the LeGrand's rear framework to support the new differential. Afterward, we gave it a coat of POR-15 paint. POR-15 provides a nice, tough finish that is theoretically impervious to fuels and solvents.

Next up, we'll rework the KZ850 motor so that it displaces a full 1000cc--that's the legal limit for our car in B Modified. Our plan is to replace the cylinder block and pistons with larger-diameter bores.

ansonivan
ansonivan Dork
4/20/09 8:43 p.m.

Any plans for head work or cams or is that forbidden by B mod rules?

Per Schroeder
Per Schroeder PowerDork
4/20/09 8:54 p.m.

Actually, yes. BMod allows pretty much anything given the weight/displacement limits for engine work. The head was already ported and had stiff valve springs and APE titanium retainers. I got a set of APE 410 cams and I need to clearance the head for them to fit.

Now, this is all just jerking around as I could also just replace the entire KZ with a ZX10R....but I'm having fun dinking around with what amounts to the original engine for the car (for now)

ansonivan
ansonivan Dork
4/21/09 9:33 a.m.

Very cool, I love the simplicity and ease of access on those old aircooled bike engines, I can completely understand the desire to wiggle a few more hp out of it.

dennisg
dennisg New Reader
7/25/09 8:11 p.m.

I've used pour 15 fuel tank liner and it will plug a 1/4" hole. its pretty thick.

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