PCM to Inline Six Hemi 265

Converting To Delco ECU From Carby Or Other Injection Systems
heff0018
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PCM to Inline Six Hemi 265

Post by heff0018 »

Hi all

Now that I have the ECM sorted on my boosted 265 its time for a new challenge.

I have a spare N/A engine which I will put on test bench and was thinking on modifying a VT, VX or VY V6 loom etc to suit the straight six configuration.

Would one on these models VT to VY be more suitable for the conversion?

Being sequential I would need a cam sensor and crank trigger setup and reconfigure the firing order.

Being DIS I was thinking I could modify the distributor for a cam sensor.

No doubt some of this is beyond my current capabilities but the dyno tuner Leon can help me out.

If anyone has any thoughts or hints on moving forward it would be much appreciated.

Thanks
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Gareth
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Re: PCM to Inline Six Hemi 265

Post by Gareth »

What about an LS1 PCM? they are now very well supported here, have the ability for multi coil and are quite cheap to aquire...
According to chemistry, alcohol is a solution...
heff0018
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Re: PCM to Inline Six Hemi 265

Post by heff0018 »

Gareth wrote: Tue Feb 25, 2025 9:28 am What about an LS1 PCM? they are now very well supported here, have the ability for multi coil and are quite cheap to aquire...
Thank Gareth I am certainly open to any suggestions but going by this thread I might need to take a more basic approach. Ha

viewtopic.php?t=7488
heff0018
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Re: PCM to Inline Six Hemi 265

Post by heff0018 »

On further research maybe the VS PCM would be more suitable.
brindo
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Re: PCM to Inline Six Hemi 265

Post by brindo »

Is this any good?
https://www.efihardware.com/products/26 ... Sequential

Could be easier than a crank trigger.
heff0018
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Re: PCM to Inline Six Hemi 265

Post by heff0018 »

Thanks Brindo, yes that would sure save a lot of time and take a lot of guess work out of the ignition side of things.
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antus
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Re: PCM to Inline Six Hemi 265

Post by antus »

6 Cylinder right? The V versus straight does not make any special challenges. The PCM doesn't care the configuration of the cylinders. First question is do you want to run MAP or MAF? If MAP then going an older (11P or 12P based) system might be better, though can do a MAFless ls1 tune too. Or there is the test version of the VY Flash PCM code, start reading about that here: viewtopic.php?p=130365#p130365 . If you went LS1 PCM (P01) you'd need 6 cylinder mode which means you wont get sequential. What type of challenge and how much challenge do you want? :)

For that Chrysler kit, you'd need to check the trigger pattern suits the PCM you use. https://www.efihardware.com/download/26 ... istributor

I think the cam pulse should be inline with Cyl1 not after it, but I'd have to check that. Could easily be wrong. Then the question (after PCM selection) becomes how easy it is to modify the pattern to suit it if required.
Have you read the FAQ? For lots of information and links to significant threads see here: http://pcmhacking.net/forums/viewtopic.php?f=7&t=1396
heff0018
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Re: PCM to Inline Six Hemi 265

Post by heff0018 »

antus wrote: Wed Feb 26, 2025 8:40 am 6 Cylinder right? The V versus straight does not make any special challenges. The PCM doesn't care the configuration of the cylinders. First question is do you want to run MAP or MAF? If MAP then going an older (11P or 12P based) system might be better, though can do a MAFless ls1 tune too. Or there is the test version of the VY Flash PCM code, start reading about that here: viewtopic.php?p=130365#p130365 . If you went LS1 PCM (P01) you'd need 6 cylinder mode which means you wont get sequential. What type of challenge and how much challenge do you want? :)

For that Chrysler kit, you'd need to check the trigger pattern suits the PCM you use. https://www.efihardware.com/download/26 ... istributor

I think the cam pulse should be inline with Cyl1 not after it, but I'd have to check that. Could easily be wrong. Then the question (after PCM selection) becomes how easy it is to modify the pattern to suit it if required.
Thanks for your input Antus.

Yes 6 cylinder.

It sounds like an older MAP setup would be more suited to me. I take it this would be something like VS 11P?

A challenge for my competency level would be running sequential and a DIS ignition system.

I will contact efi hardware and let know what PCM I am planning on running and see what they say.
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Re: PCM to Inline Six Hemi 265

Post by Charlescrown »

11P is grouped injectors so little to learn after your 12P setup. 11P is really 12P with auto trans control added. Is this just a play toy? In my opinion the only benefit of sequential injection is lower emissions.
heff0018
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Re: PCM to Inline Six Hemi 265

Post by heff0018 »

Charlescrown wrote: Wed Feb 26, 2025 2:37 pm 11P is grouped injectors so little to learn after your 12P setup. 11P is really 12P with auto trans control added. Is this just a play toy? In my opinion the only benefit of sequential injection is lower emissions.
Thanks Charles, I believe sequential may become basically batch fired after a certain amount of RPM's so I agree probably no benefit for the current turbo setup which is a street/strip setup.

I have the 5.9 360 Magnum engine project that I will eventually put on an 808 but that is in its early stages.

I have a spare running engine and there are about 20 VS Commodores at Upullit at the moment so should be able find a nice clean one to lift a loom and computer from.

I just want to keep going otherwise I will forget it all again. Ha.
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