ESE's works engine tuner

[TZ350]

EFI RS125

"Second start up of the Cougar Red Honda RS 125 GP bike.
New Ignijet 2008 ECU and wiring loom by myself. 3 injectors.
YES THIS IS FUEL INJECTED!!! Also running Bio fuel E85.
Lots more set up on the dyno. But initial runs look promising.

This project has been on going for many years. From the carburated version way back in 2008.
Stood dormant for nearly 2 years after hitting a brick wall with the previous ECU the guys decided it was time was to finish it off.

I suggested the Ignijet ECU and away it went. For more information about the machine and its past:- www.cougarred.com "

[TZ350]

OEM tuners on tps go like... 0 4 6 8 10 12 18 25 35 50 60 70 80 (roughly). When you start getting over 33% tps the throttle blade open area doesn't change as drastically. Google Honda PGM CRF tuner and view pics. I'm sure you'll find the tps % they use.Probably a good start point

Thanks, I will follow that up, not being much interested in slow running I had mine virtually the other way around, turned out to be a mistake.

[peewee]

frits if you happen to talk with jan tell him thnx. some of what he did im gonna use in my engine . its not the easiest thing adding extra ports that were never intended to be there but in the end i think it will have nearly 2x more power

[husaberg]

Carb manifolds
http://www.jetsrus.com/mounting_flan...g_flanges.html
http://www.allensperformance.co.uk/p...manifolds.html

[Frits Overmars]

Regarding the crank balance, what a beautiful explanation! Now I sort of understand.

Thanks Senso. You may want to re-read it because I just re-wrote it, hopefully improving a bit on my explanation: http://www.kiwibiker.co.nz/forums/sh...post1130833843

[Flettner]

Frits, out of interest, what alloy did you get your cylinders cast / sintered in?

[Frits Overmars]

Frits, out of interest, what alloy did you get your cylinders cast / sintered in?

AlSi12

The page at www.kiwibiker.co.nz says:

The messager you have entered is too short. Please lengthen your
message to at least 10 characters.

Now what else could we put into the alloy in order to lengthen its name without influencing its properties?

[F5 Dave]

Chilli. Makes everything taste better.

[Flettner]

AlSi12



Now what else could we put into the alloy in order to lengthen its name without influencing its properties?

Thank you. Similar ish ( silicon content ) to LM13, then that is what I will use, as I have a stack of it.

[crbbt]

Sorry to bother everyone.

My forum participation is too low to send privet messages.

These dimensions for a Honda RS125. are they standard or kit?



If Frits is going to answer (simple yes or no). here are some responses to copy and paste:

Yes, they are Kit

No, they are standard

[Frits Overmars]

My forum participation is too low to send privet messages.

I remember the problem, but it hasn't bothered me lately .

These dimensions for a Honda RS125. are they standard or kit?

First they were works Honda NSR250, then they became Honda RS250 kit and RS125 kit, then they became standard.
Then they appeared on the works reed valve Derbi 125 (tuned by Harald Bartol). Then they appeared on the 125 and 250 cc works KTMs (tuned by Bartol).
Then they appeared on the KTM production racers.
Then Dorna & Honda killed two-stroke GP-racing, so the 250-twins could not make the 600 cc sixteen-valvers look ridiculous and the 125-singles could not do the same to the 250 cc four-valvers.

[sonic_v]

Thank you. Similar ish ( silicon content ) to LM13, then that is what I will use, as I have a stack of it.

From this table, LM6 would appear to be the closest equivalent.

http://www.cast-alloys.com/products/lm_chart.htm

[Frits Overmars]

From this table, LM6 would appear to be the closest equivalent.

http://www.cast-alloys.com/products/lm_chart.htm

The difference between LM6 and LM13 that struck my eye was the Cu content. Better check with you nikasil-provider whether that's acceptable, Neil.

[richban]

I remember the problem, but it hasn't bothered me lately .

First they were works Honda NSR250, then they became Honda RS250 kit and RS125 kit, then they became standard.
Then they appeared on the works reed valve Derbi 125 (tuned by Harald Bartol). Then they appeared on the 125 and 250 cc works KTMs (tuned by Bartol).
Then they appeared on the KTM production racers.
Then Dorna & Honda killed two-stroke GP-racing, so the 250-twins could not make the 600 cc sixteen-valvers look ridiculous and the 125-singles could not do the same to the 250 cc four-valvers.

Thats really interesting. I have been looking at RS250 pipes for my NSR300. They seam to be the go to for so many 125's and 250's. A timely post. I am pulling the 300 down soon to give it a top end freshen up and (TRY) to make some pipes. I will post some pic's as I get going.

[RAW]

Then Dorna & Honda killed two-stroke GP-racing, so the 250-twins could not make the 600 cc sixteen-valvers look ridiculous and the 125-singles could not do the same to the 250 cc four-valvers.
[/QUOTE]

Great Quote Frits.
Deep down real 2 stroke enthusiasts will prevail