ESE's works engine tuner

[Gigglebutton]

TeeZee, forget the twats saying detune the GP125 - forget your thoughts on doing anything else at all - make it reliable.
At 30 Hp its fast enough to win anything.
The power being made didnt affect the piston falling into the too wide EX, the power being made didnt overadvance the midrange timing, the power didnt make the ring pin fall out - etc etc[/QUOTE]

Your right Wob
Im no 2t guru, i make stuff, but it seems under stressed compaired to some of the other motors in bucket racing. I think TeeZee could get more out of it if he had more time to think & work on it. Just a few teething problems. Even NASA lost a few pilots

And Stoner was very lucky not to get realy munted in that Highside. What a shit surface for a race track or was it crap traction control.

[cotswold]

TeeZee, forget the twats saying detune the GP125 - forget your thoughts on doing anything else at all - make it reliable.
At 30 Hp its fast enough to win anything.
The power being made didnt affect the piston falling into the too wide EX, the power being made didnt overadvance the midrange timing, the power didnt make the ring pin fall out - etc etc

Your right Wob
Im no 2t guru, i make stuff, but it seems under stressed compaired to some of the other motors in bucket racing. I think TeeZee could get more out of it if he had more time to think & work on it. Just a few teething problems. Even NASA lost a few pilots

I am even less a 2t guru than Daz but all the issues that have happened to the motor can be ironed out, the ignition curve issue is gone, the port issue is a known factor and now you know the pin needs a blob of weld or some other fixative to discourage it from messing up it's rider. ( we used to weld the top of pistons to re-profile them in the singles any reason you could not counter sink and fill the hole with a bit of ali weld? )
Look forward to seeing Kel back on it as soon as possible

[wobbly]

If you watch the qual video,only Stoner,Hayden,Spees and Vale were steering with the front in the air at that point.
All crashed except Vale,and he was real close to it - think he would have if the thing would go fast enough.

[TZ350]

TeeZee, forget the twats saying detune the GP125 - forget your thoughts on doing anything else at all - make it reliable.At 30 Hp its fast enough to win anything. The power being made didnt affect the piston falling into the too wide EX, the power being made didnt overadvance the midrange timing, the power didnt make the ring pin fall out - etc etc

Yes your right, its just mechanical details now for reliability and we need to work on setting up the handling.

If I was going to do anything tuning wise now it should be to try and extend and plump up the lower end of the torque curve for drivability.

We had hoped to spend the last race meeting tuning the handling but having the directive to enclose the carb inside a catch tank sprung on us at the last minute left us scrambling to get it running right again which is a bit much on a race day.

We need to go down on a practice day and take our time to get things right, dynos are OK but its the track where its at!

Thankfully Kel is still keen.

[F5 Dave]

As long as it runs cleanly enough to transition; no one really cares what it pulls like at 9000.

[richban]

Kel called around today with his arm in a cast, broken bone in his hand and elbow, 6-8 weeks before the cast comes off, so just in time for the start of the North Island Series.... ..... well hopefully.

Thats bad news. Mend quick Kel. When I first saw the images I thought he was practicing his drifting with the smoke and all. Amazing job on the photos as usual from Damien.

[SS90]

TeeZee, forget the twats saying detune the GP125 - forget your thoughts on doing anything else at all - make it reliable.

The power being made didnt affect the piston falling into the too wide EX

Quite right, however, using the same logic, we could also say that the poxy single exhaust port, combined with the necessary BDTA required to achieve this power has overstepped the boundaries of mechanical reliability.

Would reducing the width of the exhaust port (given the duration is already too much, and therefore Foolhardy to increase) not reduce the the BDTA, and therefore, infact, be "detuning" the engine?

Dropping 2 P.S and designing an exhaust and cylinder head for what can only be described as massive gains, and designing an exhaust to suit (bearing in mind they only have 5 Ratios to transmit this through)

Better spreads of power are made everyday with far less of the gubbins this poor old whipped mule has.

Either that, or some sort of solution to the too wide exhaust port has to be found.... Maybe an exhaust bridge of some sort....?

[Drew]

Quite right, however, using the same logic, we could also say that the poxy single exhaust port, combined with the necessary BDTA required to achieve this power has overstepped the boundaries of mechanical reliability.

Would reducing the width of the exhaust port (given the duration is already too much, and therefore Foolhardy to increase) not reduce the the BDTA, and therefore, infact, be "detuning" the engine?

Dropping 2 P.S and designing an exhaust and cylinder head for what can only be described as massive gains, and designing an exhaust to suit (bearing in mind they only have 5 Ratios to transmit this through)

Better spreads of power are made everyday with far less of the gubbins this poor old whipped mule has.

Either that, or some sort of solution to the too wide exhaust port has to be found.... Maybe an exhaust bridge of some sort....?

Did you get beat up a lot as a kid?

Nevermind.

Why are you the only guy saying this? In a forum with half a dozen dudes that seem to know their shit, no one else is bringing this obvious issue to light. It's very confusing for the totally ignorant like myself.

That is how you form a question, and reason for said question in English by the way.

[richban]

We had hoped to spend the last race meeting tuning the handling.

After lots of research, learning and talking to people that know more than me. I am super committed to get my new bike to handle superbly. In buckets I think it is the most overlooked performance upgrade. Not much point having lots of grunt if you can't turn it on. I will run the slow engine at first to really test the chassis. I figure I will have to ride it harder to keep up. After she rails I will chuck in some HP and get lazy again. I am aiming for a 23 degree steering angle with rider sag setup at 30 front 20 rear. Will see how that works out.

[wobbly]

The Ex port isnt the problem here.
At 72% width it will live forever, and at 78.5 ATDC who says its too high, it will support near on 40 Crank Hp.
The STA numbers show the Blow will support near on 40 crank Hp as well, so the system is inherently a match, and if the ports and pipe are SOTA it WILL make 40 crank Hp - with plenty of powerband width.
Its all but been done already, without trick shit transfers or pipe..
What IS the issue is the inlet port and its tiny carb, this is where all the effort needs to be directed, and TeeZee has already done a heap.
The sidetracks of Ex port width and ignition anomalies is simply an artifact of TeeZee learning what not to do in public.
He could have simply given it to me with 5K and it would have been a winner - how would he ( or anyone else ) learn jack shit from that.

[jasonu]

We had hoped to spend the last race meeting tuning the handling but having the directive to enclose the carb inside a catch tank sprung on us at the last minute left us scrambling to get it running right again which is a bit much on a race day.



Thankfully Kel is still keen.

Where did this 'directive' come from?

[TZ350]

Where did this 'directive' come from?

It was an internal team thing, people at Mt Welly are starting to become conscious of oil spills in general and Chambers wanted Team ESE to be above reproach.

[Brian d marge]

After lots of research, learning and talking to people that know more than me. I am super committed to get my new bike to handle superbly. In buckets I think it is the most overlooked performance upgrade. Not much point having lots of grunt if you can't turn it on. I will run the slow engine at first to really test the chassis. I figure I will have to ride it harder to keep up. After she rails I will chuck in some HP and get lazy again. I am aiming for a 23 degree steering angle with rider sag setup at 30 front 20 rear. Will see how that works out.

Havent heard this one in a while , well done ,


Stephen

[bucketracer]

So shot ourselves in the foot again but in a different and more imaginative way this time.

There you are TeeZee, ... its SS90 your very own devoted detractor, I expect Burt Munro had one of these too….

..... the bike in question just seems to be being tuned to a standstill …. People can jump up, Lay eggs, and wave pitch forks about all they like, I feel this is a valid point.

… one would have to wonder if someone is heading in the right direction... As you can produce an immense amount of torque from a two stroke, with-out any of the crap that thing has bolted on to it.

Better spreads of power are made everyday with far less of the gubbins this poor old whipped mule has.

[husaberg]

There you are TeeZee, ... its SS90 your very own devoted detractor, I expect Burt Munro had one of these too….

F sakes, Why does anyone even respond to his posts.
If you ignore him perhaps he will go away.
Oh well that theory doesn't work with me either

Anyway back to constructive stuff, (rather than the vile ranting of a ....Vile ranter) as everyone has said get it reliable it is just detailed stuff.
Yes i know the devils in the detail
Rob will forgive me for saying (i hope) that at times he is a little keen to try to many things at once, occasionally with mismatched parts.
Youthful over exuberance i guess.

Most people are guilty of the same (myself included although i suffer chronic procrastination as well)
Development gains often require a methodical somewhat restrained approach. This i guess is were the Japanese and Dutch really excel.

Now don't get me wrong.
Rob leaves no stone unturned in his pursuit of Bucket nirvana. He is open friendly, forgiving, thoughtful, insightful and incredibly enthusiastic
I hope no one takes this the wrong way (Except Neil) as i have met Rob and respect him both as a person and a Classic Kiwi can do Bloke.

Oh An actor to play SS nighty. Narh even Actors have moral standards, maybe a reality "star" nah again to much talent
Maybe a blogger who is famous just for his nasty rants.