For flat sixes: Webers v MFI v EFI, Ecologically speaking… Options

[horizontally-opposed]

Currently have a 2.2E/S with Webers. It runs well and makes good power, having been tuned on the dyno and further dialed in since then, but I have discovered I'm just not a carburetor person. Fuel economy isn't good enough for the size of engine/car, and the emissions bother me—both in terms of the smells in my garage and while driving the car. And yes, we've been totally spoiled by low emissions cars.

What I'm curious about, for anyone who has lived with carbs and MFI: Is MFI noticeably cleaner and/or more efficient than carbs?

Or is EFI the way to go? I'm in no hurry on this, but curious for the experiences of others. Yes, Motronic, but I actually like the 2.2 engine.

Thanks! (IMG:style_emoticons/default/beerchug.gif)

[gereed75]

I have been collecting parts for a few years now to do an EFI system using MFI throttle bodies and the MFI injector ports in my 2.4 heads.

I have a set of MFI throttle bodies and stacks and they can be had for cheaper than most of the offerings on the market for ITB’s and you can bolt right up including linkages and retain the classic Porsche look and airbox/filter options.

From there I plan to use Rasant stuff. This has been done successfully by many. Al Kosmal has done it at least once, Jamie Novak several times and others over on Pelican. Jamie sells adapters to fit modern electric injectors in MFI injectors ports.

http://classicautowerks.com/mfi-injector-adapters

Overall cost should be around $6000.00. Selling Weber’s will recoup 1/2 of that.

Will be cool if I ever get around to actually finishing it instead of talking about it. Current carbs are tuned ok and Too many other projects.

[porschetub]

I have been collecting parts for a few years now to do an EFI system using MFI throttle bodies and the MFI injector ports in my 2.4 heads.

I have a set of MFI throttle bodies and stacks and they can be had for cheaper than most of the offerings on the market for ITB’s and you can bolt right up including linkages and retain the classic Porsche look and airbox/filter options.

From there I plan to use Rasant stuff. This has been done successfully by many. Al Kosmal has done it at least once, Jamie Novak several times and others over on Pelican. Jamie sells adapters to fit modern electric injectors in MFI injectors ports.

http://classicautowerks.com/mfi-injector-adapters

Overall cost should be around $6000.00. Selling Weber’s will recoup 1/2 of that.

Will be cool if I ever get around to actually finishing it instead of talking about it. Current carbs are tuned ok and Too many other projects.

What is your MPG with your 2.2? mine with good tune is really crap ?
Sorry no intent to hijack from the OP.
(IMG:style_emoticons/default/beer.gif) .