|
|

|
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. |
|
|
| mapguy |
Oct 24 2014, 10:09 PM
Post
#1
|
|
Freelance Generalist ![]() ![]() Group: Members Posts: 98 Joined: 31-January 14 From: Inland Empire, CA Member No.: 16,945 Region Association: Southern California |
Howdy,
I have just torn down a bone stock '74 1.8 L-Jet from another 914 with plans to build it back to stock. Plan is to drive my 914 with this engine while I build the original 2.0 the way I want it. I get experience building my first type 4, and get my teener back where it belongs. On the road. I have the parts available to swap out the crank, rods, and P/C from a '76 2.0 to make it a 2.0 L-Jet. I'm very tempted to do this, as I rarely turn down cheap horsepower! No replacement for displacement, right? Any land mines I should look out for? Main concern for me is the stock L-Jet system. I understand I might have to tune the MAF for the extra displacement, but I can't find anything discouraging me otherwise. I found an article that details a 3-step process for MAF tuning, but am too lazy to look up the link. Do tell if you know something I don't. More details: As implied, stock '74 L-Jet system Stock '74 1.8 heads (41x34, I believe) web cam 142/lifters necessary machine work Cylinders honed and new rings (I have a set of 94s in excellent condition) Full re-seal on engine and all peripherals New fuel lines, vacuum lines, etc etc... One other thing, I haven't built many engines, but all the ones I've been involved in pop through the intake when first firing them off, and one in particular did it several times before finally lighting off (my old bus engine was a PITA to get running first time). Won't this be dangerous for the MAF on first start? All my experience is with carbed engines. Does this just not happen on FI engines? Any advice is greatly appreciated. |
mapguy 1.8 L-Jet to 2.0 L-Jet. Any advice? Oct 24 2014, 10:09 PM
mapguy One thing to add:
My cocktail napkin compression ... Oct 24 2014, 11:52 PM
ClayPerrine I have already done this. It works fine. I have ... Oct 25 2014, 06:43 AM
type47
There is a bus throttle body that is a bolt on re... Oct 29 2014, 08:17 AM
ClayPerrine Make sure you static time the ignition to prevent ... Oct 25 2014, 06:48 AM
type47
Set the engine on the timing mark for 7.5 degree... Oct 25 2014, 09:45 AM
pilothyer
Set the engine on the timing mark for 7.5 degre... Oct 25 2014, 12:25 PM
Dave_Darling Is the 142 a hydro cam? I'd stick with solid ... Oct 25 2014, 07:17 AM
914Sixer Clay is right about the 2.0 bus set up. Go to the... Oct 25 2014, 07:18 AM
mapguy Thanks all!!
According to the Web Cam s... Oct 25 2014, 09:21 AM
mapguy
Don't the 2.0 bus heads have much smaller va... Oct 25 2014, 09:40 AM
type47 OK. So theoretically you could time a D-Jet motor ... Oct 25 2014, 02:37 PM
revhi109 I am also running 2.0 Cylinders with 1.8 heads. No... Oct 29 2014, 07:24 AM
MrKona
I am also running 2.0 Cylinders with 1.8 heads. N... Nov 1 2014, 07:01 PM
Root_Werks I converted a 2.0 with carbs to L-Jet, the thread ... Oct 30 2014, 08:30 AM
Marty Yeoman I thought the TPS is a binary switch, only activat... Nov 1 2014, 07:52 PM
MrKona
I thought the TPS is a binary switch, only activa... Nov 1 2014, 08:52 PM
MrKona Of course, I could solve the entire issue by makin... Nov 1 2014, 09:10 PM
ClayPerrine The L-Jet throttle body has a throttle position sw... Nov 2 2014, 06:13 AM
MrKona I ended up lengthening the recess to fit the Vanag... Nov 2 2014, 09:37 PM
Geezer914 Perfect timing. I am planning to build a 2056 usi... Nov 2 2014, 09:41 PM
bigkensteele I too am planning on running the L-jet from my 1.8... Nov 3 2014, 07:53 PM
revhi109 So I am running injection with 2.0 cylinders with ... Nov 6 2014, 09:54 AM![]() ![]() |
|
Lo-Fi Version | Time is now: 10th December 2025 - 11:59 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 ... |