ESE's works engine tuner

[Bren_chch]

Holly crap Assuming your motor is peaking at 13000rpm that gives you a BMEP of approximately 11 bar, that is some phenomenal backyard engineering that you should be extremely proud of

i've got no idea what your on about...

12000rpm according to my digital counter... cheers ears!

[speedpro]

Been chatting to TZ about a TS/RGV hybrid and finally found a few shots of an older effort. Shame I didn't know a bit more about tuning back then.

[Bren_chch]

Been chatting to TZ about a TS/RGV hybrid and finally found a few shots of an older effort. Shame I didn't know a bit more about tuning back then.

ok thats interesting looking!!! what happened 2 it?

Here is my short driveway test:

[gav]

OK, Two things, Bren, was it 32hp you saw on Reds dyno at your last go?
And how is it that here at the nationals, 2 150cc four stroke bucket bikes top the 150SS qualifying charts?
http://www.mylaps.com/results/showrun.jsp?id=1782157

[Bren_chch]

OK, Two things, Bren, was it 32hp you saw on Reds dyno at your last go?
And how is it that here at the nationals, 2 150cc four stroke bucket bikes top the 150SS qualifying charts?
http://www.mylaps.com/results/showrun.jsp?id=1782157

i didnt want to make claim until his printer is working!

those cbr's were honking it! they both got all the toys in them and both ridden by 60kg very fast kids! poor rg150's beaten by 2 buckets! haha

[gav]

Apparently they are still considered a "Streetstock"

[Yow Ling]

Been chatting to TZ about a TS/RGV hybrid and finally found a few shots of an older effort. Shame I didn't know a bit more about tuning back then.

Wow 17 years ago, these days there are better choices for bottom ends for rgv barrels
Pretty flash job ! Where is it now ?

[TZ350]

i didnt want to make claim until his printer is working!

Great drive way video......... that wheel stand, very impressive... http://www.youtube.com/watch?v=gPPq69799XI

Take a photo of the dyno screen, its what we do, you don't want to be beaten to be the first claiming 30hp just because a printers not working.

I hope to be able to tickle mine up to 30+hp next week.

[TZ350]

Been chatting to TZ about a TS/RGV hybrid and finally found a few shots of an older effort. Shame I didn't know a bit more about tuning back then.

Thanks for the photos, I have been a bit preoccupied finishing the final work on my aircooled 125. Being so close to 30 I want to see if I can get it across the line before starting on the Wobbly RGV/TF100 engine.

[TZ350]

That is so close to the magic number
Any chance we can see an over lay with speedpros dyno graph.

Red line Speedpros, Wobbly designed MB100 and pipe, Blue, TeeZees 125 air cooled.

I wasn't expecting the 100 to be phater than the 125.

[TZ350]

Buckets original video clip showing some air/fuel mass appearing in the carbs bellmouth as the engine gets up onto the pipe.

For wet air/fuel fog to be in the bell mouth at peak torqe the air would have had to pass the jet at least twice and for it to be sucked back in the air would have to pass the main jet for a third time. In this clip its making 27+ rwhp so there is probably nothing much wrong with the old Suzuki GP125's state of tune.

If there is another explination I would be interested in hearing it.



In the video clip you can see the fuel line get air pockets in it.

So adding a breather to the fuel filter I have a nifty header tank for the carb and cured that problem.



I also had another problem with carburation.

Which I think is caused by wind blowing across the exposed bell mouth.

So I put a rubber wind break on the bell mouth and this seems to have cured it.

[RMS eng]

Been chatting to TZ about a TS/RGV hybrid and finally found a few shots of an older effort. Shame I didn't know a bit more about tuning back then.

Hi Mike ,thats a nice motor,looks like it would make an easy 25HP all day long,and maybe more now,jasons last KERG100 was made over 3 weeks and made 25.1HP with that old 80s TZ500 pipe.if you still have that RGV TS,you should give it another go.Chris

[jasonu]

[QUOTE=richban;1129982194]I was more thinking of comparing dynos. They are not all created equal.

that would be telling indead
and if your bike is ever up this way I'm sure they would love to put it on the dyno and see what the difference realy is

I'm sure there would be a few interested people out there

I would really like to see that comparo.
When my bike is back on wheels I would like to run it on TZ's dyno. I have the original dyno sheets showing 25hp from a Dynojet 100 so a direct comparison is possible.

[TZ350]

Hey all...man it was DAMN HOT today.......
Anyways....here are a few pics.... http://gallery.me.com/speedshotz/100245
Enjoy!

Great day at Mt Welly today, hot, but good fast racing.



A couple of wins and many placings for the 2-Strokers in A grade, havent seen that for a while.

[Yow Ling]

Ive been dabbling with this engine for sometime now, when TZ350 started his RGV project we got together and started working with Wobbly to acheive a reliable and fast package. Some things are different between our camps, cohice of bottom end being the main difference. Ive gone with a RG125 its similar to an rg150 but not the same , I dont think they were imported to NZ but some electric bike guy sold it to me as he despised all things petrol.

TZ has posted pictures of my sleeve which is a bit of a compromise but will do in the meantime as we have some new ideas in that area.

The transfers require some changes , i was always loathed to touch them as i didnt have the right tools , someone lent me a 90° grinder but was really akward to use. I ended up getting some dentists drills so that will give me heaps of room to move round now.

The RS frame has a cross beam which the shock mounts onto , unfortunatly this is where the RG carb wants to go so i have found a different rubber and a Kehin carb that work together without having to modify the frame.

The engine mounts are a bit different between the rs and rg so to keep the chain line the same i am relocating the engine mounts on the frame , i looked at milling the mount on the engine thinner but would have been inside the crankase pretty quickly, still quite alot to do, but ill try and work on it most days for a few weeks to try and knock a hole in the project

got lucky RS125 sprockets fit so can run skinny chain no problem