ESE's works engine tuner

[gatch]

.
My own 50 is coming along, I have got all the cables, chain and ignition sorted now.

The side cover is cut away over the ignition stator so the timing can be easily adjusted on the dyno, the cover will be replaced when the engine is dialled in.

Next job is to cut the new squish and CC the head, aiming for 3cc or 8.5:1 corrected compression ratio.

Why on earth have you got that fixture so far out of the chuck ?

[TZ350]

Chambers runs his 22.5 rwhp GP100 at 8:1, I was skeptical but it seems to have worked out OK for him.

Looks like CV of 3.25cc for a compression ratio of 8:1 and 16:1 uncorrected...........

The changes in volume are so small the clearance inside the plug and variations in the squish volume will have a significant effect.........I will have to take my time getting this right.

[TZ350]

Why on earth have you got that fixture so far out of the chuck ?

Yep its not a good look, the fixture was made for air cooled GP cylinder heads and a bigger lathe, the shank is to large to fit inside the smaller chuck on our lathe. There is a smaller fixture but I couldn't find it today.

[gatch]

Yep its not a good look, the fixture was made for air cooled GP cylinder heads and a bigger lathe, the shank is to large to fit inside the smaller head stock of our lathe. There is a smaller fixture but I couldn't find it today.

You can't just cut that one in half or turn the shank down ?

[TZ350]

You can't just cut that one in half or turn the shank down ?

Turn the shank down, that's possible, cut in half, no, its been made with a draw bolt through it and has other uses, I will search out the correct one tomorrow when the team is back at work.

[Buckets4Me]

You can't just cut that one in half or turn the shank down ?

or use a Dremal

[F5 Dave]

Yeah you will need to measure comm 3 times to make sure you have your procedure down pat & can believe the results, it changes super quick the smaller you go. RG heads also tend to 'cone' a little so I used to lap the head with a flat oilstone every so often. When I remeasured it a few years later it had shot up 2 points in com!

[TZ350]

.

A bit of real bucket racing...........................



And more from the Hill.



If I had a personal list of top ten riders, Fish would be right up there..........

[Pumba]

WTF who the hell put this thread in PD. FFS I thought the bucket forum escaped al the BS the rest of the site was subject to. Looks like I was wrong

[gav]

WTF who the hell put this thread in PD. FFS I thought the bucket forum escaped al the BS the rest of the site was subject to. Looks like I was wrong

I dont know who moved it mate, but Ive moved it back again. Its one of the best threads on KB

[TZ350]

.

Thanks Gav.

I think the boys had been getting a little silly on another thread and someone gave them all time out in the naughty room.

[gav]

.

Thanks Gav.

I think the boys had been getting a little silly on another thread and someone gave them all time out in the naughty room.

Yep, thats seems to be what has happened , just try and clean it a bit clean and we should be fine, hehehe

[Yow Ling]

Just leaked Joe2
aiming for 28rwhp

[TZ350]

.

Oh my God....suddenly we are feeling very behind the times with our air cooled engines...........good looking effort, like Jasonu's, much impressed.

[speedpro]

tnat's the only engine combination that is as good or better than an MB100 with 6 speed. The box on the 125 is near perfect. The clutch needs a bit of work and the stock rods need to be changed but otherwise very very nice. 28hp is going to be a test of the clutch