Change number of cylinders? Trying to run LS1 coils

[nevinsb]

I am trying to use a LS1 cal file for my LU3 to get some features working like a high resolution crank sensor to use LS1 coil backs.

Can I just change the number of cylinders in a Camero tune, or can I just change the "Low Resolution Crank" under vehicle platform?

[ScarabEpic22]

I dont think you can do this otherwise lots of guys would run LS1 PCMs on 4 cylinder engines. I could be wrong though!

[tunedportcj5]

Any updates?

[nevinsb]

Any updates?

I plan on trying to change the vehicle platform setting to use the high resolution crank sensor. I am not sure how many teeth would be needed on it.

I found a LS1 reluctor ring, but I will have to wait until I get back from Korea next Aug to do some testing. I have no idea how this ring is arranged (Where 0 DEG timing is), so if that is information someone can provide, it would be a great help.

[ScarabEpic22]

Just changing the platform option wont work IIRC, it is for reference and unless the base code is actually in the Camaro tune (doubtful), then it will no do anything.

I remember this being discussed recently on here, just cant remember where right now.

[schwoch1]

I dont think you can do this otherwise lots of guys would run LS1 PCMs on 4 cylinder engines. I could be wrong though!

Actually, I am using a 0411 PCM on a 4 cylinder engine, a turbocharged 1.3 Suzuki 4 banger in a Chevrolet Sprint........ using coil on plug ignition!!! It works great with zero hiccups!!!

Mike

[schwoch1]

I am trying to use a LS1 cal file for my LU3 to get some features working like a high resolution crank sensor to use LS1 coil backs.

Can I just change the number of cylinders in a Camaro tune, or can I just change the "Low Resolution Crank" under vehicle platform?

AFAIK, you cannot use the Camaro cal to run a 6 cylinder engine, the firing events are not spaced the same, IE V8 fires every 45 degrees, and a 6 cylinder fires every 60 degrees, hence the firing events (both coil and injectors) will not fire at the correct time. You can use a V8 cal on any engine that fires every 45, 90,180, or 360 degrees(and a few oddball spacings that most engines will never use). Opens up the possibilities for injecting other engines..... HMMM I got a 5 HP Honda pushmower with carb problems........ '411 swap with coil on plug should work!!! THe only 6 cylinder that uses coil on plug that I am aware of(that uses a friendly computer) is the '08 on up 4.2 I6 in the Trailblazer with the E67 PCM. Hope this helps!!
Mike

[nevinsb]

It's worth looking into. Thanks for the advice.

[ScarabEpic22]

AFAIK, you cannot use the Camaro cal to run a 6 cylinder engine, the firing events are not spaced the same, IE V8 fires every 45 degrees, and a 6 cylinder fires every 60 degrees, hence the firing events (both coil and injectors) will not fire at the correct time. You can use a V8 cal on any engine that fires every 45, 90,180, or 360 degrees(and a few oddball spacings that most engines will never use). Opens up the possibilities for injecting other engines..... HMMM I got a 5 HP Honda pushmower with carb problems........ '411 swap with coil on plug should work!!! THe only 6 cylinder that uses coil on plug that I am aware of(that uses a friendly computer) is the '08 on up 4.2 I6 in the Trailblazer with the E67 PCM. Hope this helps!!
Mike

Yep, thats the only 6cyl with a tuning-friendly ECM is the LL8. 08-09 are the E67 years, 07s should work if you swap the P12 for an E67/T42 combo.

Care to share with the class how you have your 1.3L turbo 4 running off an 0411? I want to know now!

[slows10]

Schwoch1, how where you able to get that 4cyl to run from the 0411 ecm? Does it have a reluctor setup similiar to a vortec or LS engine. Did you fabricate some wheels and sensor mounts? Thanks.