I have filed for divorce from my CIS

would be very nice to see step-by-step pics of this conversion

 

Put the parts in a box on a shelf. They will be worth rebuilding to someone some day.

 

Take pics and document this process. I want to see it step by step. What are you doing to make it work with the intake man.? Are you using the stock bosch pump?

 

Without seeing this manifold, i would suggest any competent machine shop could open up those holes to fit std Bosch injectors.

Or, contact Arizona speed and Marine about machining and adding fuel rail brackets, thats mostly all they do is EFI. I would suggest Arizona TPI as a the first place to try though, as they are more receptive to custom work.

You can probably find similar places in LA.

Good luck,
Doug

 

http://www.ferrarichat.com/forum/showthread.php?t=76848&highlight=efi+conversion&page=6


check out post #116 ... I've got extras of the bungs that screw into the intake and hold standard Bosch injectors if you want to take the easy way .


cheers

 

FWIW, I've been using 19lbs Ford 302 Mustang injectors - less than $200 for a set.

 

Andy,

I've been thinking about the same sort of project, albeit with a haltech system I have sitting around. Are you aware that there are adapters to fit electronic injectors in the CIS injector manifold? Check out bitzracing dot com (link below)

--Woody


http://www.bitzracing.com/products/injector_bungs/index.html

 

This is a slam-dunk how too project for the f-chat archives!

Please doc your process, parts and such as there will be many people in the future that would love (or need to) convert in the future.

Thanks for your work and willingness to share with the rest of the community.

Best of luck!

 

yeah ... that won't work in the 2V manifold ... follow my link ... I've already figured it and you won't have to pull the manifold. I've got a setup for the 4V also.


cheers

 

Here's my setup ... I've put 550 hrs on this motor with this setup.
Image Unavailable, Please Login

 

We've chased that down before, they don't fit the 2V or 4V.

 

Suggestion: Luckydynes has done this a couple of times - would research all of his threads & lessons learned.
Good luck and have fun!!

 

Thanks, that's good to know.

--Woody

 

That's a bit of a setback. I was very interested in this project for emission reasons. Having the injector open only when necesssary is very cool.

Something to keep in your pocket is CIS Flowtech. It's owned by a very very talented CIS Guru. He could get you back to happy running with CIS.

 

Tillman was referring to the parts on the bitzracing link.

Mine work without pulling the intakes. Pulling the manifolds to insert the injectors further is not a bad idea if you don't mind cutting up the manfiold. I thought people would be real sensitive about that but quite a few do it that way.


cheers

 

Did I mention how much easier it is to work on these things with all that CIS stuff gone also?

Another way to go about it is to make an adapter to replace the CIS "head" that you can run all the lines to instead of doing the fuel rails like I did. I was concerned about long line lengths with EFI and pulsation/resonance but I think someone has a system running like that ... could always do steel for a majority of the line and just make short bits to attach to the injectors ... just more ideas that have been kicked around more than once here. Still need some kind of bung for the injector if you don't want to pull the manifolds though.

cheers

 

When I first set my system up I only used the ignition portion of an E6x to run the twin distributors with the Kjet still installed. The Haltech read the stock triggers so basically there was no visual mod's to the car period.

Then I added the EFI I still used the stock Ferrari triggers for about a year. When I upgraded to the coil on plug/direct fire ignition setup I had to install a better trigger setup.

Com'n guys ... start pulling all that stuff off already .

cheers

 

What are the differences in price from a CIS rebuild to a new ignition/injection setup?

Aaron

 

I don't know what CIS costs but here's some rough numbers for EFI.


bungs/fuel rails $500-$1000 or free if you have a machine shop

Haltech E6x with wiring harness .. new $1500 but seen them for $1000 or less
2 channel ignitor for dizzy's ... $200
Map sensor $100
TB mod/bracket for position sensor ... $150
Fuel pressure regulator ... $150
injectors $200
Misc hose/fittings ... that stuff adds up but might be cheaper options ... say $500

what am I missing ... ouch ... install and tuning which can be painful. I think Mke is willing to do installs and tuning.

If you want to direct fire/coil on plugs you'll need to upgrade the trigger.

It adds up quick.

 

I presume Los Angeles Crazyfornia. I'd think it should be easier. The electro injectors only squirt when the intake valve is opening. Big improvement over the CIS when it comes to emissions. As for equipment, I wouldn't think a smog shop would get into that level of detail, and you'd be fine. I'd be curious to know what your raw sample exhaust is.

Post some pix of the hardware that drops in to retrofit the injectors. Hope it goes smooth for you.

 

Andy, The cis is not that complicated to get going.Plus parts are so readily available due to use on sooo many vehicles. Are you sure you dont have some thing else you want to spend the time on? OK We all want to choke the s..t out of the warm up regulator,piping ,fuel pump, accumulator,cold injector ,OK maybe it is a good idea to at least try a new fuel management system for fun.

 

In a sequential EFI system, each injector is timed like you say, but many systems are batch mode (all injectors fire at once). The E6X, for example, has only four chanels for injectors, so you can't do a full sequential setup with it (except on a car with four or less cylinders). Haltech does offer systems with more channels, but at significantly increased cost.

While batch operation might sound less than ideal, the time between successive intake-valve opening events gets so short as RPM increases, that it isn't nearly as bad as one might think. Even the haltech's speed-density operation, now replaced by the OEMs with mass-airflow systems, is light-years ahead of the CIS.

The only question is, is it worth it to make the change?

--Woody

 

http://www.youtube.com/watch?v=C9dNg-dAEBw&feature=channel

This is behind the wheel video of my car out gunning a 360 and hanging with a new Porsche turbo ... no stock carb'd 308 or 328 goes like that. Only other engine mod is high compression pistons ... whether or not it's worth it is all relative ... absolutely priceless to me .

cheers