ESE's works engine tuner

**katinas** · 22nd March 2018, 19:29

Originally Posted by 41juergen

Katinas, only to make sure: in your printouts from the dyno the temp, ambient pressure and humidity is the same for all tests. Do you have the "weather" station connected to the dyno software, does it get the actual pressure, temp and humidity for each individual run?
Thank's
Juergen

Juergen, do not pay attention to all atmosphere parameters, they are left from previous dyno owner tests.
This tests just for comparisons and interval between Black/Green graphs - 2 hours. Red/Blue tests on second day.
All tests done until power goes down, when engine temperature reached 70-80 C.

**karter444** · 22nd March 2018, 19:34

Hi Wobbly
in regard to coolant flow through a kz10 engine which option do you prefer to use
a. bypass hose removed and plugged with crankcase to barrel plugs removed or
b. bypass hose fitted and crankcase to barrel plugs fitted
I see that you posted a pic of the coolant flow entering through the front of the barrel ,
is this a mod that can be done under the rules .
regards Richard

**EssexNick** · 22nd March 2018, 19:47

F5 Dave. Have you checked it's not something as simple as a crappy TPS?

**F5 Dave** · 22nd March 2018, 19:55

Thanks Nick. TPS is quite consistent in diagnostic test, can see readout as you wind it back and forward.

**lucf** · 23rd March 2018, 01:02

Derby readvalve engine 72cc bore 47.6 stroke 40mm
Result 32.75 hp this means 97% of Aprilia level
150m dragrace 6.62sec with total weight 130kg

If there exist a breeding ground for horsepower in motorsport, than it is the NSSC dragrace competition. Several experienced tuners prepare there engines every year to the limit close for the new season at 150 meter distance competition. The accompanying example shows that the Aprilia RSA level was almost achieved in 2017. Moreover, it was a reedvalve engine of which up to now it was assumed that approaching the power up to 3% would be impossible. Maybe we should adjust our opinion on this now! Or is it the advance of 4x cranckshaft bearing, which were not on the Aprilia RSA.

More information and pictures: https://www.deraceheldenvanweleer.nl...p?topic=2007.0

**jasonu** · 23rd March 2018, 02:25

Originally Posted by lucf

Derby readvalve engine 72cc bore 47.6 stroke 40mm
Result 32.75 hp this means 97% of Aprilia level
150m dragrace 6.62sec with total weight 130kg

If there exist a breeding ground for horsepower in motorsport, than it is the NSSC dragrace competition. Several experienced tuners prepare there engines every year to the limit close for the new season at 150 meter distance competition. The accompanying example shows that the Aprilia RSA level was almost achieved in 2017. Moreover, it was a reedvalve engine of which up to now it was assumed that approaching the power up to 3% would be impossible. Maybe we should adjust our opinion on this now! Or is it the advance of 4x cranckshaft bearing, which were not on the Aprilia RSA.

More information and pictures: https://www.deraceheldenvanweleer.nl...p?topic=2007.0

https://www.facebook.com/photo.php?f...type=3&theater

1st link no good unless you have log in information.

**Muhr** · 23rd March 2018, 03:47

Originally Posted by lucf

Derby readvalve engine 72cc bore 47.6 stroke 40mm
Result 32.75 hp this means 97% of Aprilia level
150m dragrace 6.62sec with total weight 130kg

These results raise many questions

Type of dyno crank / weel?
32.75 hp crank / weel (Bhp)?
Fuel?
Octane?
4x cranckshaft bearing?

if above is comparable, pV is startling with less than 20ms

Regards Muhr

**Jannem** · 23rd March 2018, 05:39

Originally Posted by jasonu

1st link no good unless you have log in information.

That and the second one doesn’t look like dyno data, what is it?

**F5 Dave** · 23rd March 2018, 05:49

Oh god, here we go again. Piss off.
Don't you understand? Why do you keep coming back? You should seek help.

**Frits Overmars** · 23rd March 2018, 06:06

Originally Posted by lucf

More information and pictures: https://www.deraceheldenvanweleer.nl...p?topic=2007.0
https://www.facebook.com/photo.php?f...type=3&theater

Thank you very much Lucf.
There is just one small problem: I cannot see that Facebook-page because Lucf has blocked me. I am not sure why, because I never wrote anything about him on Facebook. Maybe he does not want me to see what he writes about me...

I asked Jan Thiel to take a look at that Facebook-page, so he might tell me what it was all about.
Jan's answer: "I cannot see it either; Lucf has blocked me too."
I seem to remember a Ryger-argument in which Lucf publicly accused Jan Thiel of not understanding how a two-stroke works....

**jellert** · 23rd March 2018, 06:13

Looks like he calculated the power output using time vs distance and the weight of the bike. Fun as a little hobby MatLab project, but you can never account for every variable. So again some arbitrary calculated power curve... Also even if the 97% figure was accurate, I bet that last 3% is insanely hard to get.

Come back when you have an independent dyno result. Or don't...

**Jannem** · 23rd March 2018, 06:37

Suppose this is just a comparison table between RSA and given set of 72cc numbers...

**Vannik** · 23rd March 2018, 06:53

Do not confuse the sterling work of Sietse and Gerard with Luc's calculation, if you have an issue with one do not also make the other off as the same. My reading Dutch is not so good but it seems in the first post on the topic they measured on a Tovami dyno 31.9hp at 13200rpm, it made more at higher rpm but starts wheel spinning.

**Jannem** · 23rd March 2018, 07:03

Originally Posted by Vannik

Do not confuse the sterling work of Sietse and Gerard with Luc's calculation, if you have an issue with one do not also make the other off as the same. My reading Dutch is not so good but it seems in the first post on the topic they measured on a Tovami dyno 31.9hp at 13200rpm, it made more at higher rpm but starts wheel spinning.

I suppose you were able make that first link work to see the dyno data?

**SwePatrick** · 23rd March 2018, 07:51

Originally Posted by Frits Overmars

Thank you very much Lucf.
There is just one little problem: I cannot see that Facebook-page because Lucf has blocked me. I am not sure why, because I never wrote anything about him on Facebook. Maybe he does not want me to see what he writes about me...

I asked Jan Thiel to take a look at that Facebook-page, so he might tell me what it was all about.
Jan's answer: "I cannot see it either; Lucf has blocked me too."

I seem to remember a Ryger-discussion in which Lucf accused Jan Thiel of not understanding how a two-stroke works....

He´s in 'keyboardwar' with your supposed lie about the FOS cylinder project.
He writes about he was before you etc etc.

A small person he is.....