5cyl: MS1/Extra 60-2 Wheel and dizzy as cam sync

tmatre · Post by **tmatre** » Tue Jul 11, 2006 11:57 am

jsmcortina wrote:Using MS1/Extra, the 60-2 wheel and a single window dizzy as cam sync you should be able to run distributor spark or COP if you wish.
see http://megasquirt.sourceforge.net/extra ... wheel.html
James

This is copied from a post in MS2...
I am going to use a 60-2 wheel and a single window dizzy on my 5 cylinder Audi 20V turbo engine. (I do not want to modify the dizzy to 5 windows)

I need some hints to get me started.
This is what I have configured so far – am I correct?

Codebase and outputs:
Wheel decoder:on
Fidle: Spark output A

Wheel decoder settings:
Base teeth: 60
2nd trigger enable: 2nd trigger
2nd trigger active edge: falling
Trig pos A=1
Trig pos B=13
Trig pos C=25
Trig pos D=37
Trig pos E=49

Keithg · Post by **Keithg** » Tue Jul 11, 2006 12:18 pm

Your base teeth need to be 120 (2x the 60 tooth wheel as COP is on 720 deg not 360 deg of crank rotation) if you are using MSnS-E. Your triggers need to be spaced on 120 teeth, or 24 apart. I do not know where your missing tooth is compared to TDC, but if it happens at 90 deg before TDC and you want a 66 degree trigger angle( 4 teeth from 90), 12 deg cranking angle (9 more teeth), you will want a tooth cadence of:
trigger, return:
4, 13
28, 37
52, 61
76, 85
100, 109

These will need to be adjusted depending on where the missing teeth are as I do not think they are at 90 DBTDC. Just rotate these around the clock depending on where the missing tooth is.

KeithG
Posted by email.

tmatre · Post by **tmatre** » Wed Jul 12, 2006 11:02 am

Tanks

I have not mounted the 60-2 wheel yet, so I can place the missing teeth were I want it

One more question…
If I only specify “Fidle” as spark output A, does MSnS Extra fire all cylinders at this output

(That is what I want as I am going to use a VAG ignition module and distributor – not COP)

Post by **jsmcortina** » Wed Jul 12, 2006 2:39 pm

tmatre wrote:If I only specify “Fidle” as spark output A, does MSnS Extra fire all cylinders at this output

Yes, although LED17/D14 is preferred leaving Fidle as Fidle.

James

Nickel_5000tq · Post by **Nickel_5000tq** » Sun Jul 23, 2006 11:03 am

Will not be simpler with a 5 windows distr from a 100q or 90 ? ith a synch pulse on cam or crank ?No need to weld a 60-2 on the damper ?

Just an idea.
I tested bench this setup with digifant-1 but kept the distr to dispatch the sparks to the right cyl.

tmatre · Post by **tmatre** » Thu Aug 24, 2006 11:33 am

I use 5 windows on my 10V turbo engine, but the 20V distributor got a fixed wheel.
I do not wan to modify the wheel in my distributor, as I need to remove the distributor gear to do so. The ignition is also more accurate with a 62-2 wheel

I’m buying my 60-2 wheel from 034motorsport.com

Nickel_5000tq · Post by **Nickel_5000tq** » Thu Aug 24, 2006 11:50 am

I ll try 5 widows dist first on my 100Q 89. Later the 60-2.

Keep email us for results tmarte.

tmatre · Post by **tmatre** » Sun Aug 27, 2006 6:39 am

Yesterday, I found a nice 10v distributor with 5 windows.
It is from a 2.3 liter NG engine.
What needs to be done is:
Remove the old distributor gear
Cut the axle
Bore a new hole for the lock pin

Picture of the two distributor axles
(I have bored a new hole for a lock pin that fits the 20v gear)

Here I have test mounted a new 20v gear bought from “urquattrob” on ebay.co.uk.

Nickel_5000tq · Post by **Nickel_5000tq** » Mon Aug 28, 2006 7:18 am

oH, thats good.
I tried to remove the pin, was impossible

How did you do that ?
So you ll try the distr 5 windows setup

.

astra200tsT61 · Post by **astra200tsT61** » Mon Aug 28, 2006 7:32 am

What is the standard trigger setup on the 20v cop?

tmatre · Post by **tmatre** » Tue Aug 29, 2006 7:54 am

You need remove the part of the pin that is outside the shaft before you try to remove the rest with a nail punch

I do use a drill for this. Do not remember the size, but i use 0.5mm bigger drillsteel on one side (You will know when you look at it)

Original the 20V uses a sensor that counts the teeth on the flywheel and a cam sensor or 1 windows distributor as cam sync

tmatre · Post by **tmatre** » Thu Aug 31, 2006 10:59 am

Audi uses a sensor that counts all the theet on the flywheel and a hall sensor located behind the cam gear pulley, or in the distributor (3B)

Nickel_5000tq · Post by **Nickel_5000tq** » Thu Aug 31, 2006 11:56 am

tmatre wrote:You need remove the part of the pin that is outside the shaft before you try to remove the rest with a nail punch

I do use a drill for this. Do not remember the size, but i use 0.5mm bigger drillsteel on one side (You will know when you look at it)

Original the 20V uses a sensor that counts the teeth on the flywheel and a cam sensor or 1 windows distributor as cam sync

I tried it and the drills got damaged. Was impossible, was too tight.