Black_Hat

you wil have to tune with a windows laptop
Richard Clewett is very helpful and can provide you with a starter map
you will need to check the marks on your pully and verify TDC and the numbers you are interested in 0-1 through 40 degrees, get a timing light without the dial
and a way to make vaccume to check timing. you just unplug the map sensor to check
timing under boost

stock C2 timing
0 degrees at idle
40 degrees 3000 RPM no boost
21 degrees 3000 RPM .8 bar

Iḿ running
10 degrees at idle
36 degrees 3000 RPM no boost
27 degrees 3000 RPM .8 bar

Black_Hat

oh and you have to use resitor plugs
Iḿ using NGK cheap and
the smaller form factor 5/8 makes changing the plugs way easier

rstarga

Thanks Black Hat

Metal Guru

Stefan, good info. I think about making the switch to EFI more and more myself. Your timing settings were most intriguing.
Do you plan on taking your engine "all the way" at some point?

Black_Hat

Yep
I´m collecting parts
so far 3.2 intake, mustang aftermarket throttlle body, fuel rails, ss lines .
Iḿ going with megasquirt 2 but maybe 3
Megasquirt gives access to the souce code I will code an FPGA to autotune but that is a side project ...
I just found a broken head stud so this will happen sooner than later ...like after I get back from vacation

rstarga

I'd be interested to know how your setup is working a few months down the road. My mechanic and a few others I talked to while searching for an ez69 had only negative views on the Clewett ignition setup. All claimed very poor reliability and that it was cheaper to throw the things away than to try and diagnose a fault. I finally had to pony up for a new ez69.

Black_Hat

well time will tell ...
BUT
I did some research and ..

some of the bad press came from the old Fuel injection ( comlete engine mgmt ) system from electromotive and this was due to not enough tuning Cells ...making this a bad choice for turbo applications - all fixed in the new engine mgmt computer =More cells

the old crank sensor had reliability issues ...the new one seems to be much better -AND
always carry a spare

many racers (NA) use the XDI 1 setup for years without issues ..some claim some timing walk

the XDI2 computer is solid state and carries a warranty

BUT ultimately an aftermarket fuel injection/ IGnition system reliability is determined in a big way by the connection quality in your wiring harness

I will admit the XDI 2 is not perfect and people will argue CDI / waisted spark
but there is really not much out there without completely converting to FI