ESE's works engine tuner

[Muhr]

Looks very simulair Ief

Thats insane

Is it a 31-32 stroke?

[dutchpower]

Thats insane

Is it a 31-32 stroke?

Here some data Muhr

[ief]

Then go to Premium



After installing the update from Neels lots of deto

Ah, it WAS related I understand, that hardly seems a viable way to get to a proper model. Mix some nitrous in while we're at it haha

To be sure, your pic shows the outcome of only one barrel right, that seems insane but what do I know (?)

I made some changes to your stated numbers here and there in an effort to get tubmax down and I didn't understand, 1:16 CR and a head volume of 2.4cc so changed that as well.

Anyway, I'll keep on playing with this some more.

[dutchpower]

Yep one barrel Ief

9.1 trapped

Pic. are from my friend Nico ( tomorrow big test )

[ief]

Cool. Did you try to round the sleeve where the transfers are?

My CR is way lower... Guess I have something not right, haha.

I'm just trying to get a model which seems to correlate reality and without deto.

But you know reality

[Frits Overmars]

Thats insane Is it a 31-32 stroke?

Yep. Some more pictures of Nico's 50cc twin:

[dutchpower]

Mine are different
Nico is difficult to persuade

Hopefully tomorrow

[ief]

Could you show your temp file dutch?

[dutchpower]

Wobbly RSW temp is a good start

[TZ350]

But you know reality

Do we at Team ESE know Reality???? .... No, we try not to go there, when dreams are free ....

But Nico's 50cc twin is a seriously cool looking engine, we are very impressed.

[ief]

Still think there should be a dedicated forum for engmod....

No magic in the temp file, that's for sure.

Well, we'll just see what tomorrow brings then dutch... eagerly

(lol, TZ, just make more then 30 hp for once will ya )

[dutchpower]

Good idea


2 hour engmod

2 years in the workshop


Dreaming is wast of time

[TZ350]

.

While I wait for some pressure sensors to arrive for my EFI project I thought I would get on with developing the switch that determines if the engine has fired or not.



Handy little kit-set signal generator I found on Trademe. Real easy to put together and works great too.



The signal is about 7 crank shaft degrees wide at 12,000 rpm.

The trick is to see if we can use an Arduino Nano to identify the peaks between the leading edges of the square wave.

And use the Arduino Nano and Relay module to switch the relay when there is none, ie the motor has not fired.



It is truly amazing what you can learn of the internet using Google, programming the Arduino does not look that hard. Who said old dogs can't learn new tricks.

I will be using the classic If/Then/Else routine in an endless loop.

If its fired Then do nothing Else activate the relay.

The first step is to be able to identify and refresh the signals then develop the application to discriminate between firing or not and activating the relay.

And at a total processing cycle speed of 200 hz all this should be possible.

[varthrix]

[QUOTE=TZ350;1131077307]This thread is best read backwards, that way you get to the good stuff first. Page's 500, 1000 and 1500 are worth a visit.

And there are thousands of pictures you can look through if you use the thread tools.

What went wrong, poor workmanship and the retaining tip of stainless wire I used fractured from vibration.

If I was to try again I would use the Yamaha racing TZ approach of drilling down from the top and piano wire with the tip bent over in the hole. Piano wire wont fracture like the SS did.
Thanks for the searching tips TeeZee, they helped out a lot. Also Frits, I usually try to learn from other people's mistakes, but sometimes I actually repeat them a time or two just to be sure.
By using the search method TeeZee suggested, I managed to find only one post talking about reed area vs carburetor bore area and it was from Husaberg. It mentioned a rule of thumb 0.8 reed area vs carb area, but noone confirmed it, so is there actually a different formula for determining reed petal area?
Also sorry if my wording is bad, English isn't my native language.

[Frits Overmars]

It is truly amazing what you can learn of the internet using Google, programming the Arduino does not look that hard. I will be using the classic If/Then/Else routine in an endless loop.
If its fired Then do nothing Else activate the relay.

Programming hmm? You'd better prepare for a life of misunderstanding and ignorance...