ESE's works engine tuner

[Yow Ling]

Wow, thats pretty flash bit of work. Hope it goes as good as it looks

[TZ350]

Wow, thats pretty flash bit of work...

Thanks

...Hope it goes as good as it looks

Me to...........

[ac3_snow]

Hello,

whos the man building the fzr, is it ready to ride yet. whats it like weight wize compared to a 'smaller' 125 or similar, or does the 'better handling' make up for a lil extra weight??
cheers,
just curious, you guys get up to some pretty interesting/serious work!!

[F5 Dave]

Ahh, so finally, is that a starting attempt at a proper boost port at the back?

The std is rubbish & I'd pointed out to Tex when he showed me his GP a year or two back that filling it up & starting again with a proper rear entry was the logical choice. Since he has now bought a dirty diesel & hasn't done it anyway it's no odds.

[TZ350]

Hello, whos the man building the fzr, is it ready to ride yet. whats it like weight wize compared to a 'smaller' 125 or similar, or does the 'better handling' make up for a lil extra weight?? cheers, just curious, you guys get up to some pretty interesting/serious work!!

Thanks for your interest.....

In the team there are two Honda RS125 chassis with Suzuki GP125's in them, from memory, all up they weigh about 75kg, the handling is superb and the young guys who ride them swear by them, but they can be cramped to ride.

And there are two Yamaha FZR250 chassis with GP's for those on the team who prefer armchair comfort with their racing. the FZR's at 81 and 93kg weigh about the same as the 90kg stripped down Suzuki GP125's they replaced. One of the FZR's has wire wheels and is 12kg lighter than the other one.

9kg diff in the wheels and another 2-3kg in the smaller disk, calipers, cut down sub frame and lighter chamber. The FZR's look big but are 10+kg lighter than most Suzuki FXR's which are typically 105-110kg.

In running the FZR's we are looking at riding comfort and better handling than the old Suzuki GP chassis could manage. We are getting reasonable hp but figure good handling will get us further now than extra hp will. There are three F5 bikes, two runners and one a work in progress and two of the old Suzuki GP's are going to be kept on as loan bikes when we can get some good standard engines for them.

Only one of the FZR's is on the track at the moment, it took 250 hours of work to get it there. The other is still a little way off yet but getting there. Most of the team and particularity Chambers try to do an hour or two on their projects most nights. I post what I can of what they are up too. Speedpro also runs an FZR with a very quick Honda MB100 motor, he is the one who got us interested in them.

[speedpro]

. whats it like weight wize compared to a 'smaller' 125 or similar, or does the 'better handling' make up for a lil extra weight??
cheers,
just curious,

The better handling easily makes up for the extra weight. Plus there is plenty of room to fit any motor combination you want and radiators or anything.

[gav]

Yip, probably even get an FXR motor in there!

[TZ350]

Yip, probably even get an FXR motor in there!

Yep certainly could but won't...........

But we do have some CB/SL 100 motors (std bore they are actually 99cc) and are tempted to build a water cooled supercharged 4-stroke, now that would be fun...

[Ned Kelly]

Thanks for your interest.....

In the team there are two Honda RS125 chassis with Suzuki GP125's in them, from memory, all up they weigh about 75kg, the handling is superb and the young guys who ride them swear by them, but they can be cramped to ride.

And there are two Yamaha FZR250 chassis with GP's for those on the team who prefer armchair comfort with their racing. the FZR's at 81 and 93kg weigh about the same as the 90kg stripped down Suzuki GP125's they replaced. One of the FZR's has wire wheels and is 12kg lighter than the other one.

9kg diff in the wheels and another 2-3kg in the smaller disk, calipers, cut down sub frame and lighter chamber. The FZR's look big but are 10+kg lighter than most Suzuki FXR's which are typically 105-110kg.

In running the FZR's we are looking at riding comfort and better handling than the old Suzuki GP chassis could manage. We are getting reasonable hp but figure good handling will get us further now than extra hp will. There are three F5 bikes, two runners and one a work in progress and two of the old Suzuki GP's are going to be kept on as loan bikes when we can get some good standard engines for them.

Only one of the FZR's is on the track at the moment, it took 250 hours of work to get it there. The other is still a little way off yet but getting there. Most of the team and particularity Chambers try to do an hour or two on their projects most nights. I post what I can of what they are up too. Speedpro also runs an FZR with a very quick Honda MB100 motor, he is the one who got us interested in them.

And you forgot the Aprilia 125 that is tucked away at the back of the container for a rainy day project

[speedpro]

tempted to build a water cooled supercharged 4-stroke, now that would be fun...

You forgot engine management. It just happens I have management system and a little supercharger which could be used for a good cause.

[Buckets4Me]

You forgot engine management. It just happens I have management system and a little supercharger which could be used for a good cause.

that sounds like a side chair project to me

[Buckets4Me]

You forgot engine management. It just happens I have management system and a little supercharger which could be used for a good cause.

that sounds like a sidechair project to me

[speedpro]

echo . . . . echo . . .

[TZ350]

You forgot engine management. It just happens I have management system and a little supercharger which could be used for a good cause.

I am keen to build a supercharged 4-stroke but first I have to get my FZR on the track with its 2-stroke GP125 motor and test the plenum idea, after that I can start into a 4-stroke. I have been thinking of turning the supercharger with a 2-stroke Pocket Bike motor.

The rules limit a supercharged motor that's driving the bike to a 99cc 4-stroke but there is nothing in the rules that says the blower has to be driven by the prime mover and you could have two motors the supercharged one driving the bike and another, a 2-stroke turning the blower.

The FZR certainly has enough room..........

[Kickaha]

The rules limit a supercharged motor that's driving the bike to a 99cc 4-stroke but there is nothing in the rules that says the blower has to be driven by the prime mover and you could have two motors the supercharged one driving the bike and another, a 2-stroke turning the blower.

The rules quite clearly set an overall capacity limit, if you have two motors regardless of whether one is driving a supercharger or not you will be over it, unless of course both motors total less than 100cc

You should clarify it with MNZ before you bother because I doubt you would get away with it