At a crossroads with my conversion |
|
Porsche, and the Porsche crest are registered trademarks of Dr. Ing. h.c. F. Porsche AG.
This site is not affiliated with Porsche in any way. Its only purpose is to provide an online forum for car enthusiasts. All other trademarks are property of their respective owners. |
|
At a crossroads with my conversion |
Cfletch |
Oct 31 2024, 05:57 PM
Post
#1
|
Member Group: Members Posts: 107 Joined: 30-January 14 From: Santa Barbara Member No.: 16,941 Region Association: Southern California |
Need maybe a little outside perspective. I have a 1970 914 1.7 that has been sitting on jackstands for about 10 years at this stage and is in the middlish of a 6 conversion. I ended up getting a 2.7L out of a 74 911 a while back that was stock and had its CIS installed on it, but needed to be refreshed with new gaskets. There came a point in time where I thought I did not want the CIS because of complexity of the fuel system and sizing of the plenum where I said screw it I'll do carbs instead. I got a set of core italian webers and went to rebuild them only to find out they needed more parts than I had thought. Those are sitting on the work bench in need of the random parts to be back to complete. I never got around to getting intake manifolds because I ran into an issue with the weird 74 CIS port sizing. They are 32mm from my recollection with the cutout in them for the injector. Once I realized that I couldn't just slap a standard intake on it I kind of just stopped in my tracks and with other projects, college, and career stuff taking priority, the car just sat. I eventually talked to the old owner of PMO and he mentioned that I could get away with actually using the MFI manifolds with my webers to circumvent the issues of the intake ports on the heads since the gaskets also have that cutout for the injectors so that was always kind of the option and route I was going. Now back after 10 years, I really want to get the car back on the ground and to drive it. I have a ton of work still left in terms of oil system, axles, intake of course, and engine install and I guess I am here to see what others think as the best direction to take.
Would I be better/smarter to just go back to CIS and deal with the system that I don't really feel comfortable dealing with? Or stick to the webers and the mix and match of the MFI intake manifold? Additionally I was having some issues back when I was more active on the project to get the engine installed into the car.... Its been on a jack for all this time just waiting to be installed and from my recollection the angle of the car and the angle of the engine were off giving me some issues getting everything lined up in a manor where it could actually be bolted together. I think I generally just need to get back into the project and make progress but am not sure where to spend my time and money on. Any thoughts or ideas are welcome |
rick 918-S |
Oct 31 2024, 09:47 PM
Post
#2
|
Hey nice rack! -Celette Group: Members Posts: 20,733 Joined: 30-December 02 From: Now in Superior WI Member No.: 43 Region Association: Northstar Region |
At one time I had some adapters made that blocked the notch in the heads for the injectors. I called them Alien adaptors. This allowed the use of early intakes and avoided the expense of purchasing PMO stuff. I offered them around and only sold a few sets. I don't think I have any left. Really, the CIS stuff is very easy. The cam in the engine is spec'd to injection also. If you still have the CIS you should use it.
|
Lo-Fi Version | Time is now: 1st November 2024 - 04:17 AM |
All rights reserved 914World.com © since 2002 |
914World.com is the fastest growing online 914 community! We have it all, classifieds, events, forums, vendors, parts, autocross, racing, technical articles, events calendar, newsletter, restoration, gallery, archives, history and more for your Porsche 914 ... |