ESE's works engine tuner

[seymour14]

Long time ago ,if I remember correctly , I said free blowys for life to anyone making over 30Hp at 10500 in a bucket - cant remember if that was 100cc ( with 24mm carb ) or 125 aircooled.
No ones even come close, so I am safe, for now.

Yes we did achieve it and have the figures to prove it. The bike runs really well and has won the North Island Championship this year.

The only reason I don't bring it up is I don't want your wrinkly mouth sucking on my knob.

[wobbly]

Really cool job,but we are still waiting to see over 30RWHp at 10500 from a 125 aircooled on a real dyno sheet.

[seymour14]

Really cool job,but we are still waiting to see over 30RWHp at 10500 from a 125 aircooled on a real dyno sheet.

It should be on our GPR page from a couple of years ago, old news.

I am an engineer and a noted historian. I don't lie.

Don't be so keen to suck my man popsicle, I am happy for you to let it go...

[seymour14]

By the way, I enjoy this thread as much as anyone, so just resume normal transmission!

Carry on the good work.

[husaberg]

Really cool job,but we are still waiting to see over 30RWHp at 10500 from a 125 aircooled on a real dyno sheet.

I guess this is it? personally i would say it was 30 at 10501 rpm if only to protect seymours innocence.
https://www.kiwibiker.co.nz/forums/s...post1130960800

[TZ350]

So Rob, we have a start point for the project of a 32mm duct,and a 36mm header along with around a 22mm stinger nozzle.
The current setup with the RS125 pipe peaks at around 12,000, so the question is, do you want to modify a cylinder to get the correct pipe geometry
and although way more power is available at higher revs, do you want to go there.

Hmmmm these are good questions ....

I had a plan in mind, that for simplicity and ease of being reproduced, of keeping the NSR cylinder un modified except for the 2mm trimmed off the top and radiusing the leading edge of the PV blades. Which is the setup that most of Team ESE want. All easy stuff. On the other hand, we have two running engines, one with a std NSR cylinder and the other one modified. We are making two more std NSR110's but I am a glutton for max engine development.

Wob could we have two pipe designs.

The one you have developed so far, sure the setup is compromised but it does allow someone using a std NSR cylinder to keep things simple.

And a full house no holds barred total hells death setup where the cylinder is modified in whatever way is required.

I have another two cylinders that may be more or less suitable where the exhaust port and duct has been modified to be more like a RS125 port. Flat(ish) across the top, 52mm wide with the sides bulging outwards like in the attached picture.



Transfers open 115 ATDC and the Exhaust port opens at 80 ATDC on one cylinder and 78 ATDC on the other and the PV is flattened with the front edge radius-ed, the leading edge of the exhaust bridge is also radiused for improved flow coefficient.



Suzuki GP100 bottom end with Kawasaki KE175 rotary valve cover, NSR110 cylinder modified Ex opens at 80ATDC Trans 115 and In 140/85, RS125 NX4 pipe. The same setup as before but with a modified exhaust port.

Wob lets go for the doctor and see what can be done. Modified exhaust duct, nozzle, head shape, crazy wild inlet timing and RPM. With EFI, inlet timing can be nuts and the injectors are good for 13,500 rpm or maybe a little more. The sky's the limit if we go with a carburetor.

[steamroller]

Come back wobb

[TZ350]

Had a Yamaha150 on the dyno tonight. 24+ rwhp.



Yam blue line, std NSR110 red line, looks like we have a bit of work to do to stay ahead of the big 4T's

[mr bucketracer]

Come back wobb

blame tyger

[wobbly]

Its OK guys, im more than happy that it can be done, using well executed science and handwork.
But at the time it just appeared to me to be ridiculous with the old cylinders and small carb size.
But now I am getting right on 50 Hp from a 125 kart engine with a 30mm carb, so things change on here even within a short 2 year period.
As im in a wheelchair, im at the right height for girl ass bighting or even knob gobbling, at a push.
Shame all round.

[steamroller]

Its OK guys, im more than happy that it can be done, using well executed science and handwork.
But at the time it just appeared to me to be ridiculous with the old cylinders and small carb size.
But now I am getting right on 50 Hp from a 125 kart engine with a 30mm carb, so things change on here even within a short 2 year period.
As im in a wheelchair, im at the right height for girl ass bighting or even knob gobbling, at a push.
Shame all round.

Good to have you back' now maybe you can fix all the honda rs 125s as they only have 40hp.

[richban]

Had a Yamaha150 on the dyno tonight. 24+ rwhp.



Yam blue line, std NSR110 red line, looks like we have a bit of work to do to stay ahead of the big 4T's

Hey Rob. Do you still have the dyno run from my old FXR? I can't remember how it did. That blue line looks well messy. I wonder whats happening at the top end. 7k is always tricky with exhaust reversion. Do you no what size throttle body it runs?

[TZ350]

.
I think yours was much the same but a better curve. I will have a look for the graph, might take a while as there are 8,000 plus images attached to this thread.

Found It ... Here you go......

Just so us 2T boys know what we are up against.

Attachment 332407Attachment 332408

Some time ago Richban and the GPR boys dropped in for a dyno session. Richbans FXR150 pulled 23.9rwHp (red line) which was pretty impressive. The blue line is my air cooled 125 2T, being air cooled it would lose its edge after two or three laps.

Attachment 332409

I think this is the 20th Team GPR bike and I expect they may have improved the power output a whole lot more, they are looking dangerous.

You have to admire those GPR bikes.

[shnaggs]

You have missed my point, they run clean throughout their range. KTM set the bikes as standard to meet emission constraints, lower to mid is where the fuel is traditionally lost mostly so yes probably a little neutered in feel they do.
But there are other maps that can be loaded that change this, ask Chris Birtch he has a reloaded 300 and loves it. One comment he specifically makes is how clean in runs throughout it's rev range.
with the link you can run a 3D map using revs, TPS and manifold pressure ( conditions). It needs to be feed a relatively smooth signal, thats were timed sampling is needed.
We can change or YZ to have 'sharp' power delivery but the fuel consumption suffers and it gets harder to ride, just like a normal YZ, why would you?

I guess I did miss your point. So where does one find these maps? I've seen a piggy back module that JD jetting is tinkering with, but that is only changing the 2D map. The only other thing is the GET ecu, but if you have other info, I would much like to know! Thanks

[F5 Dave]

Its OK guys, im more than happy that it can be done, using well executed science and handwork.
But at the time it just appeared to me to be ridiculous with the old cylinders and small carb size.
But now I am getting right on 50 Hp from a 125 kart engine with a 30mm carb, so things change on here even within a short 2 year period.
As im in a wheelchair, im at the right height for girl ass bighting or even knob gobbling, at a push.
Shame all round.

Yeah not exactly old cylinders, more like RS 125 committed to aircooled cnc barrel. Fantastic execution but not comparable to a TF125.