The ZPower Project

neilbarrett · #46 PostAuthor: **neilbarrett** » Wed Dec 18, 2013 6:07 pm

zpower wrote:The tank, side panels and tailpiece are now mounted.

The tubes have been moved to follow the line of the side panels better.

The cross frame braces are in to add strength and support the seat and tailpiece.

[img]http://i1274.photobucket.com/albums/y429/zpower-images/Zed-Project/IMG_1339_zpsfb81f6cc.j
My mate took a picture of me trying it out for size

Shame the front tyre is flat

id keep an eye out that the chain misses the top of the arm when it mates up with the front sprocket
Phil.

zpower · #47 PostAuthor: **zpower** » Thu Dec 19, 2013 10:03 pm

Hi Neil,

The weight of the engine should shallow out the swinging arm a little and I'm currently thinking about a 17/46 530 sprocket setup but was going to ask that question a little closer to the time but if anyone has some input on this I would appreciate it.

17" rear 180/55 so with a 17/46 530 i'm thinking flat out would be around 120mph but will accelerate quite hard with the 1200 top end?

Cheers,
Phil.

zed1015 · #48 PostAuthor: **zed1015** » Thu Dec 19, 2013 10:20 pm

I initially had 15 - 36 with my 17" wheels and it went like a motocrosser .
I now run 19 - 40 which is just right.
You could probably do away with the first two gears using 17 - 46 :shock:

.
You need a ratio of around 1.92 to 1 with 17's as an equivalent to the original 2.2 with 18" wheels.

zpower · #49 PostAuthor: **zpower** » Thu Dec 19, 2013 11:11 pm

Hi Rob,

The main reason was clearance between the chain and the top of the swinging arm.

Anyone else running 17" wheels with a 530 chain conversion want to post their gearing and what it pulls like?

Cheers,
Phil.

tlc · #50 PostAuthor: **tlc** » Fri Dec 20, 2013 6:54 am

zpower wrote:The weight of the engine should shallow out the swinging arm a little.

I have found it necessary to extend the Rex forks by 1 1/2" - 2"

zpower · #51 PostAuthor: **zpower** » Fri Dec 20, 2013 3:30 pm

Thanks for the suggestion tlc

If I have any issues I have a few options two of which being increase the length of the forks to put more weight on the back or make some new dog legs to drop the rear a little.

This requirement will be driven by the size of the sprockets I use etc...

Cheers,
Phil.

zpower · #52 PostAuthor: **zpower** » Mon Jan 06, 2014 4:12 pm

Frame engine mounts and gussets / bracing done and frame jigged. Welds need tidying up.

Over all view of the modded frame

Now I can progress the blind build to see what additional brakets etc I will need.

Jay1969 · #53 PostAuthor: **Jay1969** » Mon Jan 06, 2014 4:20 pm

Phil that's awesome!

I'm wondering though, if your frame might be too rigid now.

Lester Harris says bike frames need a bit of flex, for cornering.
I have a magazine article about it, I'll post a seperate thread
in Bike Help...

zpower · #54 PostAuthor: **zpower** » Mon Jan 06, 2014 4:23 pm

Hi Jay,

I just replaced the standard GPZ1100 A2 bracing and added a little more around the headstock as recommened by a guy that used to race them.

Jay1969 · #55 PostAuthor: **Jay1969** » Mon Jan 06, 2014 4:57 pm

zpower wrote:Hi Jay,

I just replaced the standard GPZ1100 A2 bracing and added a little more around the headstock as recommened by a guy that used to race them.

Ok Phil, well I'll post the Lester Harris magazine article as a Bike Help topic, may be of interest to others :idea:

zpower · #56 PostAuthor: **zpower** » Fri Jan 31, 2014 6:58 pm

Brake callipers were in a sorry state so I set to work on them...

Before...

Using the piston extraction tool that I borrowed from Fred the Zed cheers Rich

Cleaned and painted...

Finished...

Another job ticked off the list

Vince2 · #57 PostAuthor: **Vince2** » Fri Jan 31, 2014 10:03 pm

Very impressive Phil. Trust it didn't 'BRAKE' the bank!

sanderz · #58 PostAuthor: **sanderz** » Tue Feb 04, 2014 7:49 pm

That frames looking top notch there Zpower, lot of work gone into that. Keep it going.

zpower wrote:

zpower · #59 PostAuthor: **zpower** » Wed Feb 05, 2014 9:55 pm

Vince2 wrote:Very impressive Phil. Trust it didn't 'BRAKE' the bank!

It's the cheapest bit of restoration so far :lol:

sanderz wrote:That frames looking top notch there Zpower, lot of work gone into that. Keep it going.

Thanks glad you like it

zpower · #60 PostAuthor: **zpower** » Sun Sep 21, 2014 8:06 pm

I soda blasted the crankcases , barrels, head etc this weekend and preped them ready for spraying.

Just need a good warmish day :roll:

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