sub 4 efi add-on attention motorheads

[groundhog]

I've bought a sub 4 engine/redrive combo. It came with no carbs ignition or exhaust. could an aftermarket injection/ignition system be added to update this system ? Remember it has dual plugs per cylinder.

 

[rv6ejguy]

If you can fit one injector per cylinder, SDS could do spark and fuel with twin coil packs.

 

[groundhog]

I was hoping to do one injector at each plenum (2) in place of two carbs but I probably could put two injectors in each,that would add redundency

 

[MOL]

James
Try to ask the Soobmeister.
Perhaps he can help you making the stuff you need.
He just made my ignition and EFI modification.
Modified the intake manifolds to include 1 injector in each pipe (4 in total). Made two new TB's too. Runs the LINK EFI system.

 

[groundhog]

if by soobmeister you mean neil I pm'd but haven't had a reply

 

[MOL]

There are different solutions for you.
Yes, Neil it is.
Well, he is very busy all the time and have little time to answer all e-mails ect.
Though, one thing I do know (talked with him about this post yesterday) is that he has left the SUB4 design aside and only want to work on his new stuff now. I respect that, and I also fully support that. Then again, he is the one that designed the SUB4 so he is the one to talk to. As I said, I talked with him about your post and perhaps I talked him into helping you as he just did mine (it needs the mod)(we have special relationship) so he now has all templates and jigs to make yours as well. But he is not going to do it for free. You wont regret it If he makes it for you.
Another solution is to call Andrew at Casttech and ask if he has some of the original TBI's for sale and use them. Not the bedst solution, but . .
A third solution is to call RAM and ask if they can help you out.

 

[Neil Hintz]

I don't get so much time to look on the forum these days, yes James I can help you out as I am doing some special mods to Brian's engine which will make it much better, I'm doing his stuff right now. I will have the programmes stored so I can make some more components later if necessary. I can make the original ignition if you like, I halve the advance retard now to make them idle better. Original exhaust is also still available if you need it. Injectors are now fitted to inlet tubes separately ( smoother idle ). Brian is also getting the new cone clutch prerotator. I'm happy to help out with SUB4, but I did think that was Castech's bussiness now!

 

[Dean_Dolph]

........ Brian is also getting the new cone clutch prerotator.

Neil, can you give us more info on the cone clutch prerotator? It looked to me like Dick DeGraw was using such a device on one of his machines and intrigued me.