ESE's works engine tuner

**TZ350** · 22nd May 2010, 08:41

Chambers FZR-GP100 is nearing completion, looks smart with its wire wheels.

**TZ350** · 22nd May 2010, 08:49

Originally Posted by Kickaha

There are a few 50's down here.............the bike I rode last year was raced in the 50cc NZGP back in the eighties and is RM50 based

Good one Kickaha, had me thinking there for a bit RM50's in F5?????...........F5GP and 50cc NZGP one in the north and the other in the south, seems a fair split and another good reason to travel south.

**TZ350** · 22nd May 2010, 11:14

Weighing Chambers 22.5 rwhp FZR-GP100, 42kg front, 40Kg rear, total 82kg dry. Sure we have to fit a seat and handle bars yet, but we can see some things we can do to remove more weight too, like changing the rear caliper for a light weight pit bike unit. So hopefully when its all finished it will be 80kg all up, dry. Those wire wheels make a big difference, I think FXR150's are about 18rwhp on a good day, but how much do they weigh?

**Henk** · 22nd May 2010, 11:29

Mine came in at 105 with enough gas in the tank for a day.

**gatch** · 22nd May 2010, 11:54

Originally Posted by TZ350

Weighing Chambers 22.5 rwhp FZR-GP100, 42kg front, 40Kg rear, total 82kg dry. Sure we have to fit a seat and handle bars yet, but we can see some things to do to remove more weight too, like changing the rear caliper for a light weight pit bike unit. So hopefully when its all finished it will be 80kg all up, dry. Those wire wheels make a big difference, I think FXR150's are about 18rwhp on a good day, but how much do they weigh?

How much of a saving have you made with wire vs alloy wheels ?

And yes they do look pretty trick. Good work.

**jasonu** · 22nd May 2010, 12:42

That tank weighs a lot. I made a fibreglass mold of a 1991 RS125 tank and foamed in an ali fuel cell, saved nearly 2kg.

**TZ350** · 22nd May 2010, 12:55

Originally Posted by jasonu

That tank weighs a lot. I made a fibreglass mold of a 1991 RS125 tank and foamed in an ali fuel cell, saved nearly 2kg.

Thanks, good idea........

**TZ350** · 22nd May 2010, 12:59

Originally Posted by gatch

How much of a saving have you made with wire vs alloy wheels ?

Yes, we will have to check that again sometime, as its not only the wheels but sprocket carrier, disks, calliper, Etc. about 9-10 kg is my guess, it would be interesting to know for sure.

**bucketracer** · 22nd May 2010, 14:41

20Kg lighter than an FXR and handling to match or bettor and power to burn, this is starting to look interesting.

**Buckets4Me** · 22nd May 2010, 14:44

Originally Posted by jasonu

That tank weighs a lot. I made a fibreglass mold of a 1991 RS125 tank and foamed in an ali fuel cell, saved nearly 2kg.

we have a spare rs125 tank lying around

**bucketracer** · 22nd May 2010, 19:37

Or you could copy this little beauty's idea for fuel tank.............

**Pumba** · 22nd May 2010, 19:41

Originally Posted by jasonu

That tank weighs a lot. I made a fibreglass mold of a 1991 RS125 tank and foamed in an ali fuel cell, saved nearly 2kg.

Hmmm I spy a new project, how big did you make the tank underneath?

**Henk** · 22nd May 2010, 22:18

Pumba. For Mt wellington half a litre is more than enough. If you want to save weight go for 250 ml.

**jasonu** · 23rd May 2010, 03:57

I don't remember the actual capacity but I remember makeing sure it would go a full length GP easily.
I actually have the completed used item in the pic I am finished with if you are interested. You would have to mod the mounting fittings to suiit your frame but all the hard work is done, turned filler neck, petcock mount ect.
Let me know