In other words peaky. Sorry Mike.Originally Posted by speedpro
Forum whore
In other words peaky. Sorry Mike.
No8 Wire Extraordinaire
Don't worry I'll teach how to abuse those poor clutch plates.
Don't you look at my accountant.
He's the only one I've got.
Bucket Racer/Crasher
progress . . big radiator and temp sender. Uses standard FZR filler cap bit
No8 Wire Extraordinaire
aww man! take the sharp edges off that plate of ally before H&S clamp down on yer ass,.
Don't you look at my accountant.
He's the only one I've got.
Bucket Racer/Crasher
Well , it doesn't make 29.2hp. The clutch slips so it's hard to tell. Every run it would let go as it really picked up. I tried a run at less than full throttle and it revved on nicely making average horsepower. Surprisingly it liked more advance. Every time the timing was advanced it made more power and better. Rob ended up sawing a bigger notch in the crankcases for the pickup which pokes through so we could turn it far enough. It may like more yet but we called it quits as the clutch was letting go and may have been getting worse. Still running the old 32mm round slide Mikuni and never got to the jets so hopefully more power with jetting and should be for sure with the 34mm flatslide. From first to last run we gained about 5hp so quite nice for just timing changes.
Race it don't store it !
So what will you do with the clutch ? will it have to have a new type basket or better springs and plates ...Sounds great..
Bucket Racer/Crasher
This clutch is already well modified. I've machined the steel plates and the alloy bits that clamp them so an extra pair can be fitted. Like that and with stock springs and no spacers it's been good for years with no problems. I still have the spring spacers so I'll put them back in. With the stock clutch pack but with the spring spacers it handled the old 22.5hp but made the lever hard and the clutch was not as nice to use. The combination of extra plates and spring spacers should be OK. Failing that I'm going to have to cheat.
Forum whore
I would go get some new plates after friday nights effortThis clutch is already well modified. I've machined the steel plates and the alloy bits that clamp them so an extra pair can be fitted. Like that and with stock springs and no spacers it's been good for years with no problems. I still have the spring spacers so I'll put them back in. With the stock clutch pack but with the spring spacers it handled the old 22.5hp but made the lever hard and the clutch was not as nice to use. The combination of extra plates and spring spacers should be OK. Failing that I'm going to have to cheat.
"Instructions are just the manufacturers opinion on how to install it" Tim Taylor of "Tool Time"
“Saying what we think gives us a wider conversational range than saying what we know.” - Cullen Hightower
Bucket Racer/Crasher
Since the last post we've had another session on the dyno. The motor is a whole lot better but doesn't make any more power. It has some monster main jet in it now - 1.85mm or something over 400. The power peak has been moving lower in the revs as the jet size has gone up so with a bit of fiddling with the air correction jet it should be possible to broaden the peak nicely. We ran out of gas on the dyno but just before that it seemed that the motor started running on and that caused a bit of worry. I took the pipe off to check what I could of the bore and the visible face of the piston. It all looked good so I tipped some old fuel into it and gave it a quick run up the street to make sure it is OK. I love it. This thing has a real 2-stroke hit and goes like stink. I only ran through a couple of gears but that was enough for a real big grin. I just love the sound of a 2 stroke on the pipe. I'm just hoping 30hp can be stretched out of it. It's just that magic number, the next big step. It'll be bloody frustrating if we can't get there.
I've bid on a generator and pickup on e-bay and once that arrives and we have the charging circuit sorted it'll be time for the Ignitech ignition.
Pretengineer
haha,
Just ran my watercooled head for the first time last weekend, had the same sized radiator you had on before (RG50) and yeah also need to go larger doh!
I think a zzr250 radiator should do it and it's as light as the RG50 one, just holds a bit more water.
Unfortunately I will be happy if I make it into the 20hp bracket let alone 30hp you bastard!
Forum whore
A water cooled head is better than no water cooling at all. But without watercooling the cylinder as well as the head, with a pump not thermosyphon, you have only done less than half the job. Especially if you are makeing heaps of power, you will need all the cooling you can get.
Bucket Racer/Crasher
Has anyone else heard from our European correspondant lately??
I'm actually confident that the thermosyphon cooling system on my MB will work fine. I would prefer larger diameter inlet and outlet on the head but apart from that it seems to work fine. My old AC50 was so well cooled I had to cover 90% of the RG50 size radiator. OK, the AC50 wasn't making as much power as the new bikes but it was only slower than Pete Sales GT50 in the end and he held the NZ land speed record, maybe still does. It's such a simple cooling circuit it really doesn't need a pump I think.
Long Haired Yobbo
Yep, He does.
Heinz Varieties
Forum whore
the beast was running cool on the dyno
top of the radiator was 60-70 deg and the bottom around 40 deg
head was around 40-45 deg and the cylinder was up to 70 deg sometimes
"Instructions are just the manufacturers opinion on how to install it" Tim Taylor of "Tool Time"
“Saying what we think gives us a wider conversational range than saying what we know.” - Cullen Hightower
Forum whore
Maybe when he read you are knocking on the door of 30 P.S, he broke his computer screen when he hit it with the keyboard.......
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