ESE's works engine tuner

**xwhatsit** · 14th June 2009, 00:46

Lol -- here I am scratching my head trying to work out what will happen when I add a 350 piston onto a 250 single (with balancer shafts, no less) -- and I'm the guy who uploaded Tuning for Speed to Scribd in the first place

Came out before balancer shafts though... but still useful theory.

**TZ350** · 14th June 2009, 09:29

Thanks for doing that xwhatsit.

**sonic_v** · 15th June 2009, 01:50

Here is an online Squish Velocity Programme. There is also a few other useful programmes.

http://www.torqsoft.net/squish-velocity.html

http://www.torqsoft.net/piston-position.html

**FastFred** · 15th June 2009, 14:23

Good Stuff, thanks SonicV, had a play with them, very usefull.

**TZ350** · 15th June 2009, 16:56

Links.

Terminolagy:- http://www.2-stroke-porting.com/terminology.htm

MSV Mean Squish Velocity Calculator:- http://myweb.tiscali.co.uk/teamsparr...rheadsv2_3.xls

Simulation video clips of 2-stroke scavenging:-
http://video.google.com/videosearch?...um=4&ct=title#

A catalog search engine, pistons, rod kits etc.
http://www.who-sells-it.com/r/mahle-...-2-stroke.html

Using only one ring:- http://www.vintagesleds.com/library/...ing_effect.pdf

The effects of higher compression ratios in a 2-stroke:-
http://www.vintagesleds.com/library/...ompression.pdf

From, Yow Ling. www.zeeltronic.com has fully programmable cdi's about 100 euros.

Stan Stevens RGV Tuning:- http://www.stanstephens.com/rgv.htm.

A MacDizzy Blaster Engine Rebuild with Photos:- http://www.macdizzy.com/1989hhopup.htm

MacDizzy's:- http://www.macdizzy.com/

Modifying a Suzuki open chamber to a squish head:- http://www.ozebook.com/compendium/t5...organ/head.htm

Dispelling 2-stroke tuning myths:- www.fatbaq.com/RS125_dispellingmyths.doc

Gordon Jennings:- http://www.vintagesleds.com/library/...20Handbook.pdf

An assortment of Gennings Articles:- http://www.edj.net/2stroke/jennings

Graham Bell:- http://www.kreidler.nl/artikelen/per...raham-bell.pdf

Yamaha SAE Paper on Porting:- http://www.2stroke-tuning.nl/media/pdfjes/porting.pdf

Gold Mine 1:- http://www.2stroke-tuning.nl/media/

Anyone can open a free account with Scribed where they can download "Tuning for Speed" by Phill Irving.

http://www.scribd.com/doc/15392252/T...rcycle-Engines

Phill Irving talks about CrankShaft Balancing and Balance Factors on pages 107 to 110 of the book which can be found on page 61 of the PDF.

Rate of Fuel Burn:- http://www.factorypro.com/tech_tunin..._vs_power.html

Reading Plugs:- http://www.dragstuff.com/techarticle...ark-plugs.html

Engine formulas:- http://members.bellatlantic.net/~vze...es/engine1.htm

A Handy Coverter:- http://www.mr2ownersclub.com/converter.htm

Detonation:- http://www.factorypipe.com/t_deto.php

Dale Alexander. The Art Of Squishing Things Until They Make Power:-
http://www.aircooled-rd.com/default....ge=squish1.htm
http://www.aircooled-rd.com/default....ge=squish2.htm
http://www.aircooled-rd.com/default....ge=squish3.htm

A preview of Kevin Camerons book “Sportbike Performance Handbook”:-
http://books.google.co.nz/books?id=L...esult#PPA81,M1

TUNING VESPA'S THE NORRIE KERR WAY.....
http://www.scooterhelp.com/serial/tuning.books.html

Crankcase delivery ratios and inlet timing for rotary disk motors:-
http://www.edj.net/2stroke/jennings/delivery_ratio.pdf

The effects of crankcase volume on the delivery ratio:-
http://www.edj.net/2stroke/jennings/...ase_volume.pdf

Piston pin offset and what it means for extra power:-
http://www.motorcycleproject.com/mot...ws-offset.html

4-Stroke stuff but very interesting about porting and combustion.
http://www.gofastnews.com/board/technical-articles/

Supercharged Honda 50 http://www.elsberg-tuning.dk/the%20bikes.html

Drop your engine in liquid nitrogen:- http://www.iwt.com.au/cryogenics.htm includes dyno charts to prove the theory. Thanks Yow Ling.

The Big Tuning Manual from Piper Cams:- http://www.bgideas.demon.co.uk/tmanual/ it talks about combustion chamber shape and swirl patterns, and are PDF's that can be down loaded.

.

**TZ350** · 15th June 2009, 17:00

Originally Posted by sonic_v

Here is an online Squish Velocity Programme. There is also a few other useful programmes.

http://www.torqsoft.net/squish-velocity.html

http://www.torqsoft.net/piston-position.html

SonicV would you mind if I add you'er links to my list?

.

**F5 Dave** · 15th June 2009, 18:12

I had a bit of a quick squizzy at The effects of crankcase volume on the delivery ratio:-
http://www.edj.net/2stroke/jennings/...ase_volume.pdf & must admit I'd never heard of the test engines. Then noticed they spin out to the dizzy heights of 4500rpm at best. One can imagine that the pressures involved are not proportional compared to time areas due to gas flow at up to 3x the revs.

ok here's one to send people down the garden path with a nice but difficult idea
http://www.muller.net/mullermachine/docs/slippy1.html

Borut makes Zeeltronics stuff for mainly RGV, NSR etc but could be possible to adapt to a bucket but you'd have to talk to him, you need 3 boxes to get programmable & will cost a site more than 100 euro. (I have a setup on my 500).

**Yow Ling** · 15th June 2009, 18:51

Originally Posted by F5 Dave

IBorut makes Zeeltronics stuff for mainly RGV, NSR etc but could be possible to adapt to a bucket but you'd have to talk to him, you need 3 boxes to get programmable & will cost a site more than 100 euro. (I have a setup on my 500).

I have a Zeeltronics ignition controller on my lc, it works with the stock cdi because there is no curve in the lcs cdi. Rzs need a zeeltronics cdi to replace the yamaha one to get rid of the stock curve. i think thr controller was 100 euro and the programmer 50euros. the third box is the powervalve box ?

he also has a 12v cdi so you dont need exciter windings on your stator and want to run total loss

**Skunk** · 15th June 2009, 19:49

Wow, I knew if I waited long enough some more info I can use would be forthcoming (rather than questions), but I never expected that bonanza!

**sonic_v** · 15th June 2009, 23:30

Originally Posted by TZ350

SonicV would you mind if I add you links to my list?

.

Fire ahead

**F5 Dave** · 16th June 2009, 10:01

Originally Posted by Yow Ling

I have a Zeeltronics ignition controller on my lc, it works with the stock cdi because there is no curve in the lcs cdi. Rzs need a zeeltronics cdi to replace the yamaha one to get rid of the stock curve. i think thr controller was 100 euro and the programmer 50euros. the third box is the powervalve box ?

he also has a 12v cdi so you dont need exciter windings on your stator and want to run total loss

Yeah but it means you have to have a battery at the least. If your cdi was straight curve then you don't need the 3rd (CDI) box (4th is powervalve if you call then programmer a box).

**TZ350** · 16th June 2009, 22:33

There is a bit of a spat going on, on the two stroke tuners thread over this question and no one will chance their arm.

Which is heavier, (A) the reciprocating weight of the rod piston assembly or (B) the counter weight of the crankshaft.

This is a test (A) or (B).

The answer is (A) as the counter weight only counters a % of the reciprocating weight and is lighter than the reciprocating portion of the rod/piston assembly.

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**TZ350** · 17th June 2009, 19:25

.

There has been a bit of talk about Crank Shaft Balance Factors on the Two Stroke Tuners thread, resulting in more heat than light. As there is a bit of a rowdy crowd over there I am going to make my posts here.

I intend to keep it simple, so for what its worth, this is our interpritation of Phill Irvings work.

Phill Irving talks about CrankShaft Balancing and Balance Factors on pages 107 to 110 of the book which can be found on page 61 of the PDF.

http://www.scribd.com/doc/15392252/T...rcycle-Engines

Anyone can open a free account with Scribed where they can download "Tuning for Speed" by Phill Irving.

"xwhatsit" is the guy who uploaded Tuning for Speed to Scribd in the first place, thanks xwhatsit.

I will use a 2-Stroke single cylinder TF100 crank to demonstrate my explanations and I need to break it down into sections as I can't cover it all in one or two posts. Thomas gave me a hand, taking the photos and gave me a few tips along the way.

My plan is to:-

(1) Post photos of all the cranks I have lying around and quickly describe the features I can see on them.

(2) Describe how to find the reciprocating weight.

(3) What the "Balance Factor" really is.

(4) I will answer this question, Which is heavier, (A) the reciprocating weight of the rod piston assembly or (B) the counter weight of the crankshaft.

(5) Why there is a "Balance Factor" and what changing it does.

(6) What to do with your "Balance Factor"

(7) A simple but very effective jig for staticaly balancing a crank, that you can make yourself in 10min's. (Thanks Thomas)

(8) What a rocking couple is, and how the term is used in crank shaft balancing.

(9) Just for Skunk, Some of the problems associated with balancing a V2 90 degree twin with one horizontal cylinder.

This is going to be a very simple "KISS" look at single cylinder crankshaft balancing, based on Phill Irvings book. If anyone thinks I've missed something or wants a more in-depth treatment they are welcome to explore the internet for what they can find. Or dust of data from their own experiments and post it themselves. Then we can all enjoy reading their interpretation of what they have learnt.

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