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GPZ1100 Frame

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FOZ1A
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GPZ1100 Frame

#1 PostAuthor: FOZ1A » Sat Nov 11, 2017 5:51 pm

Is it possible to fit a Z900/1000 engine into a gpz1100 frame?

foz
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Julian_Boolean
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Re: GPZ1100 Frame

#2 PostAuthor: Julian_Boolean » Sat Nov 11, 2017 9:14 pm

I pretty sure you can but someone will be along to say for definite.

Why do you want to do it?
A collection of parts pretending to be a Z1100R and a H****

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popsA1
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Re: GPZ1100 Frame

#3 PostAuthor: popsA1 » Sat Nov 11, 2017 10:32 pm

It's not easy. I had the same idea with a Unitrak frame but when I positioned the Z900 crankcases in the frame it was obvious it was going to be a challenge. So I gave up but someone on here has done it. The front mount is way off and needs repositioning as I recall.
Here's the project http://z1ownersclub.co.uk/phpBB3/viewtopic.php?f=7&t=24650
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KWACKERZ1
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Re: GPZ1100 Frame

#4 PostAuthor: KWACKERZ1 » Sun Nov 12, 2017 5:25 pm

I am thinking of going the other way has anybody done the reverse, GPZ into z1000/900 frame it must be possible as non kickstart engines should be shorter.
If anyone has pics or tips it would be useful.

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Re: GPZ1100 Frame

#5 PostAuthor: garyd » Mon Nov 13, 2017 5:57 pm

should be easy to put a GPz in.

I had a Harris made for a Z900...blew that up and put a GPz in. Can't remember there being any issues.

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Gus
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Re: GPZ1100 Frame

#6 PostAuthor: Gus » Mon Nov 13, 2017 6:30 pm

Done rather a long time ago.

From memory the front and rear top mounts are a straight fit.

We welded another tube across the front with ears on to fit the lower mount.

And I "think" we welded ears on to the swing arm cross tube for the rear lower mount

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Julian_Boolean
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Re: GPZ1100 Frame

#7 PostAuthor: Julian_Boolean » Mon Nov 13, 2017 9:02 pm

There isn't a lower rear engine mount on a GPZ1100 engine (or any J engine), the front lower is an additional one to the older engines, front mountings are rubber, rear is solid
A collection of parts pretending to be a Z1100R and a H****

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FOZ1A
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Re: GPZ1100 Frame

#8 PostAuthor: FOZ1A » Tue Nov 14, 2017 8:50 am

I was looking to use a GPZ1100 frame, as there is a complete lack of Z900/1000 frames out there for sensible money - anyone got one to sell? I read the project threads and its not a straight forward swop. I've been offered a frame and crankcases, so could I transplant a Z900 engine internals into GPZ1100 crankcase?

foz
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KWACKERZ1
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Re: GPZ1100 Frame

#9 PostAuthor: KWACKERZ1 » Tue Nov 14, 2017 12:38 pm

There was a z1r frame for sale on here yesterday. You would be better buying that. I used to run a z1r tank on an a1 so bodywork should not be a problem.

I think an engine internals transfer would be difficult.
You can fit gpz heads to earlier engines but gearbox clutch cranks etc i suspect would not work.

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FOZ1A
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Re: GPZ1100 Frame

#10 PostAuthor: FOZ1A » Tue Nov 14, 2017 2:42 pm

The Z!R frame would work, but I cant see it posted, can you highlight for me?

foz
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garyd
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Re: GPZ1100 Frame

#11 PostAuthor: garyd » Tue Nov 14, 2017 6:45 pm

Plus. old zed tanks won't fit a GPz frame..the tubes are spaced much wider.

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Gus
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Re: GPZ1100 Frame

#12 PostAuthor: Gus » Tue Nov 14, 2017 9:14 pm

Julian_Boolean wrote:There isn't a lower rear engine mount on a GPZ1100 engine (or any J engine), the front lower is an additional one to the older engines, front mountings are rubber, rear is solid


That proves how long ago it was done and the last time I looked at it :roll: :lol:

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Re: GPZ1100 Frame

#13 PostAuthor: Gus » Tue Nov 14, 2017 9:15 pm

FOZ1A wrote:The Z!R frame would work, but I cant see it posted, can you highlight for me?

foz


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viewtopic.php?f=3&t=42006

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Re: GPZ1100 Frame

#14 PostAuthor: KWACKERZ1 » Wed Nov 15, 2017 9:35 am

As Gus says below, but i emailed and pm'd you last night.

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zpower
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Re: GPZ1100 Frame

#15 PostAuthor: zpower » Thu Nov 16, 2017 12:38 pm

FOZ1A wrote:I was looking to use a GPZ1100 frame, as there is a complete lack of Z900/1000 frames out there for sensible money - anyone got one to sell? I read the project threads and its not a straight forward swop. I've been offered a frame and crankcases, so could I transplant a Z900 engine internals into GPZ1100 crankcase?

foz


Thats my ongoing project... Not far off now just need to find some time and enthusiasm.

Years ago I put a GPZ1100 crank, cylinders and head in to a Z900 engine for my Harris but you have to weld the supports for the rear cam chain guide into the top crankcase so the reverse is possible.

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