Will I get my 100 ready in time for Taupo?

[F5 Dave]

Taupo what? It's been won by 2 strokes a few times. TZ is obviously learning how not to program an ignition, but that was something we never had to worry about. End result will be a better curve than the old bikes ever had.

My new engine should be reliable, assuming that I get the ign sorted out by stealing from other's experience -if I get the pingas to buy a ignitech.

Now as I said many times in this thread, the bike build was originally flawed. Mike suggested I cover it in concrete. I wish I'd listened. But I didn't have the money then to do much about it. Hopefully I will soon. Leaking cases & trying to use that YZ100 piston with a 14mm rod just spelt compromise. Bearing in mind I'd thrown out my water cooled barrel.

So what did I achieve? Well this throw together bike made good useable power & showed that it was competitive even with this old guy riding it. On the same dyno that showed a peaky 23hp (22 before I put Av in the tank) Steadman KV100 (SI guys will know the bike as Joe) I got 24 with a better spread. & that was at 12k peak.

OK considering the platform basis, but not spectacular as I've seen DaveDs MB's curve & it adds another hp & a better curve to boot, similar revs.

[bucketracer]

Good results on a kart track......unfortunatly results when it counts.........Taupo anyone?

Nathanial was well ahead on his stroker before he dropped it, true, it was not a good day for the strokers generally, still it only gives the 4-strokes a sense of false confidence for next year.

[bucketracer]

Oh I was actually thinking the same thing too, but i believe the quality of competition is higher.

Now that is a brave statement.

Husas statement is supported by the fact that the top 9 qualifiers at the Moto4 (Bucket) GP held at Taupo this year were all faster than the existing lap record.

Now you can't get better proof than that, that the quality of competition is higher.

[jasonu]

Husas statement is supported by the fact that the top 9 qualifiers at the Moto4 (Bucket) GP held at Taupo this year were all faster than the existing lap record.

Now you can't get better proof than that, that the quality of competition is higher.

Wouldn't know mate, that (part of the) track didn't exist in the (my) olden days so no times to compare.
I do know that at Mt Welli (a track that hasn't changed) the fastest times are now in the 29 sec range which was unheard of when I was involved (1990-98). A very good time in those days was mid to late 30 seconds IIRC. I can't recall anyone using brand new slicks which I am told are good for the better part of a second a lap compaired to the used and abused rubber we used and there were no RS125 frames being used either.
As for the quality of competition being higher, maybe maybe not, I don't know. There is definitely MORE competition given the large entry levels Buckets attracts and that can only be good for the class.

[bucketracer]

I don't remember Jimmy and Ken Steadmans, Steve Diproses (Rams old bike), David Diproses or Chris Pickets bikes (and others I can't name atm) blowing up enough to say there were unreliable.

It would be a nonsense to think there have not always been small failures, and I suspect that every tuner has his war stories.

[speedpro]

Back in the "good ol' days" I was feeding a new piston to my TS100 every two meetings, preventative maintenance, and probably spark plugs at least as often. Bikes (of mine) were blowing up about as regularly as now. I could have tuned for less power and lasted forever but where's the fun in that? My 22.5hp MB lasted about 6 years without any changes and in the end only blew up when I shifted backwards when already at max revs.

[jasonu]

It would be a nonsense to think there have not always been small failures, and I suspect that every tuner has his war stories.

Agreed mate and that is pretty much what I said in the bit you quoted.

[bucketracer]

I do know that at Mt Welli (a track that hasn't changed) the fastest times are now in the 29 sec range which was unheard of when I was involved (1990-98). A very good time in those days was mid to late 30 seconds IIRC. I can't recall anyone using brand new slicks which I am told are good for the better part of a second a lap compaired to the used and abused rubber we used and there were no RS125 frames being used either.
As for the quality of competition being higher, maybe maybe not, I don't know. There is definitely MORE competition given the large entry levels Buckets attracts and that can only be good for the class.

At Mt Welly, 34 sec has been the cutoff for B grade for a while, now there is talk of making it 32.

I think improved "Quality of Competition" is certainly because of the better equipment available now and the numbers of good riders on the grid, obviously there have always been sharp riders, but now more of them are turning up at Moto4 (affectionately known as Buckets) now days.

As for tuning 2-Strokes, well TeeZee's 30+ hP from a 125 air cooled motor with a fixed ignition and 24mm carb or Speedpros 30 hp MB100 with its water cooled head could have been done back in the day .... but wasn't.

[speedpro]

I think my MB seized at Taupo because Dave was only using part throttle instead of full throttle and the tuning wasn't good enough. I'll get him to thrash it all the time next year though I should have the 36mm carb and TPS fitted by then so hopefully that will fix things.

[jasonu]

years ago it was more likey the four stroke would blow up and the 2 strokes always finshed . l remember when kris sheriff's won the first gp on a four stroke it was shock horror that a 4 stroker could win it

I was there to see that. What a pile of shit and so the story goes it blew up the next time it was ridden. I thought he was a back marker who wouldn't let the leaders pass.

[richban]

Husas statement is supported by the fact that the top 9 qualifiers at the Moto4 (Bucket) GP held at Taupo this year were all faster than the existing lap record.

Well being one of those people I can comment on why I went faster. I was on the sameish bike as the year that the 1:26 was set. I did a crapy 1:29 but was told before I crashed I was doing 1:27 something in the race. This year my fastest time was a 1:25.0 something. Now so what was different from that year to this.

Bike:
Engine internals and exhaust the same. Better carb allowing better top end. Near new rubber allowing way better grip. New RS Wheels and 415 chain. Better direction change and lighter over all. So quite a lot different really.

Rider:
Same weight and fitness but almost 3 years more the wiser. But slightly d tuned on the day with 9 beers the night before. Other GP was just the 4 beers. Competition: More even and lots of young talented light fast riders on well prepared bikes to chase.

Add all that together and you can easy see 3 or 4 seconds.

The bike was down big time on top end speed. I tried twice to get a tow from faster bikes one was Dave T. On a straight bit on full throttle he came past and I swung in behind and he just kept on going. Same ting happen when Andrew A came past in the GP he just blasted past with not tow for me. Weight is the biggest problem there and being down 2 or 3 hp on the old engine.

Problem is I need another 2 seconds. But that has already been found.

Conclusions: The game is being raised all the time. Long may it continue

On paper the 2 strokes have it for sure and always will but luckily bits of paper and talk don't win races.

[bucketracer]

I think my MB seized at Taupo because Dave was only using part throttle instead of full throttle ...

Part throttle ignition setting seems to be what got TeeZee as well.

[jasonu]

As for tuning 2-Strokes, well TeeZee's 30+ hP from a 125 air cooled motor with a fixed ignition and 24mm carb or Speedpros 30 hp MB100 with its water cooled head could have been done back in the day .... but wasn't.

and if they had been built 'back in the day' they would have still dun blowed up and or not made the start or finish of the races as in recient times. That said, if they had been built in the 90's think of what they might be like today with 15+ years of development...
(sorry Mike and TZEE no offence intended)

[bucketracer]

TeeZee says he could build a very fast 4, 4 strokers have always been an interest for him.

On paper the 2 strokes have it for sure and always will but luckily bits of paper don't win races.

But its the challenge of making paper work on the track that keeps him interested in doing it with a 2 stroke.

[bucketracer]

and if they had been built 'back in the day' they would have still dun blowed up and or not made the start or finish of the races as in recient times. That said, if they had been built in the 90's think of what they might be like today with 15+ years of development...
(sorry Mike and TZEE no offence intended)

Actually I had thought of saying, they would have eventually been made reliable but they probably weren't built in the first place because they didn't need to be at the time.

TeeZee and Speedpro are just now taking the first steps to getting this next generation of 25-30 hp 2-stroke development sorted.