Turbo Grand Prix 3500 swap

[Superdave]

Not yet, i was running low on time when i got that one. I also need to pick up some floppy disks so i can save the waveform instead of taking a picture of it. I might have to run it at a higher RPM than 900 as well.


If i can talk Abob into coming over to my house again this week i'll get some better captures, i could do a live feed from the scope over the net as well but that's almost too geeky.. even for me.

[CNCguy]

I was having a hard time getting both signals since the 58x is so much faster but damn it's a clean square wave...

Do you have one showing a full revolution of the LX9? It may help people to understand what a weird signal it uses.

Damn... I still need to get a scope.

[robertisaar]

dave is cool enough to have a sillyscope.

[Jonpro03]

lots of work and potential incompatiblity...

or you could... you know.... just run the 1227727 on either 8F or code59 and save a LOT of time and potentially money.

Would still have to buy a trigger!

[Jonpro03]

AWESOME! How did you hook up to get that signal?

[Superdave]

I was having a hard time getting both signals since the 58x is so much faster but damn it's a clean square wave...




this is 2 rotations of a 7x

[Superdave]

hmm.. now i know how to hook up that sensor to get a waveform off of it...

and since there is a running 3500 car in my driveway i think i know what i'm going to do tonight.

[robertisaar]

lots of work and potential incompatiblity...

or you could... you know.... just run the 1227727 on either 8F or code59 and save a LOT of time and potentially money.

[Jonpro03]

this should keep you busy.....

http://imgur.com/H1aHB.png

http://imgur.com/2k30U.png

http://imgur.com/NrCjX.png

Just what I needed, thanks!

I'm really REALLY torn on whether or not to try to make this LS2 setup work with my megasquirt (a lot of work) or to buy an external trigger (a lot of money) and use the DIS the megasquirt is currently setup to run.

Do I wana do lots of work or spend lots of money...

[robertisaar]

this should keep you busy.....

http://imgur.com/H1aHB.png

http://imgur.com/2k30U.png

http://imgur.com/NrCjX.png

[Jonpro03]

Robert, do you have the diagram for the harness on the coils for the lx9?

[Jonpro03]

GREAT!

YES!
http://www.msextra.com/doc/ms2extra/MS2-Extra_LS1.htm

http://www.msextra.com/doc/ms2extra/MS2-Extra_Ignition.htm#ls2

I love it when there's directions!

It will need a little modification in the software but this should get me 90% there!

EDIT: Looks like it's closer to the LS2, which is bad because of this:

LS2 (gen 4) trigger wheel

Unknown whether this works.
Apparently around 2006, a different 58 tooth trigger wheel and a 4 tooth cam wheel were put into the engines. Until we have some timing data on these wheels we don't know whether they will work as-is or whether special code is required.

[robertisaar]

Oh and, what kind of signal is put out by the cam position sensor? I may be able to use that with the megasquirt.

simple 1X signal. i believe it's a high signal that when the notch passes the sensor, it gets driven low(or is that reversed?). notch should be at TDC cylinder 1 at the exhaust/intake transition.

[robertisaar]

i remember someone comparing the 3500 reluctor to the LS1 reluctor actually... i don't remember what came of it though...

[Jonpro03]

Oh and, what kind of signal is put out by the cam position sensor? I may be able to use that with the megasquirt.