Hey guys, I'm a new 914 owner and have been a 914 "wanter" for some time. I bought a car that I knew needed engine work but it had a great body!
So now I am looking at the engine work and I am thinking up upgrading my EV case 1.8L engine to a 2.0.
I've never worked on a air cooled motor before and from what I gather this conversion is pretty straight forward. However, having said that I'm not convinced that it's as easy as just buying larger pistons and cylinders.
Can someone please spell out for me all the parts that are different from a 1.8 to a 2.0L engine if there isn't too much? I'd really appreciate it!
I did search the forum and didn't find any topic covering this.
-JR-
Good question, I am starting same project
Are you going to use carbs or FI?
Oh and Welcome, you have come to the right place.
It's got dual webbers on it right now actually. Someone converted it in the past. I'll have to check the cam once I get it appart to see if they also changed that.
cranks are different
66mm for 1.7/1.8
71mm for 2.0
rods are different
heads are different (2.0 heads a little better, but tend to crack more often)
pistons and cylinders are different
you can add larger pistons and cylinders to your existing engine...the most common would increase it to a 1911, but it'll still be a short stroke engine
Shameless plug:
http://www.914world.com/bbs2/index.php?act=ST&f=18&t=21219
I see you already found it JR
As far as I have been told, all these parts are the same as a 914 2.0 except the pistons (dished instead of flat) and the heads (same as a 1.8 914)
Would anyone know if you can put the 2L pistons on 1.8L rods? I've heard the 2L rods are different, but I'm not sure if it's just the length or if it's also the bearing surfaces too. I just want to give my old 1.8 a little more of a kick without spending a bundle as I start my 6cyl project in about a year.
Thanks!
Building a 1911 would be the cheap route. You could leave the bottom end together, but as you mentioned, the cam is unknown. It's most likely stock. It's not a very good cam for carbs, but it'll still work fairly well. You're probably looking at about $1000 for new pistons and cylinders and some head work (new guides, etc).
If you want to do a 2.0 it's probably best to do a 2056. That's 96mm pistons instead of 94mm. Because you'd have to buy the crank and rods (you can't use the 1.8 rods) and because you'll have to split the case which means a new cam it'll probably run you $2500 to $3000 for that upgrade.
So the 1911 is the cheap easy route because it's just new pistons and cylinders and rebuilt heads. It'll be a blast. Add a cam and really fly.
Not true.
1.8L is 93mm bore and 2.0L is 94mm bore.
Just fyi, I just went and bought a 2.0 to change mine. With the gain of HP due to the 2.0L 3 stud heads is the main reason to do the swap.
Powered by Invision Power Board (http://www.invisionboard.com)
© Invision Power Services (http://www.invisionpower.com)