Home  |  Forums  |  914 Info  |  Blogs
 
914World.com - The fastest growing online 914 community!
 
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.
 

Welcome Guest ( Log In | Register )

> 718 cayman engine swap, Will the 4 cylinder turbo engine physically fit in a 914
david63
post Dec 13 2025, 11:25 PM
Post #1


Member
**

Group: Members
Posts: 98
Joined: 9-August 09
From: Parker Colorado
Member No.: 10,653
Region Association: Rocky Mountains



Searched through threads for a bit and didn’t see anything referencing swapping a 718 cayman 4 cylinder turbo motor into a 914. I imagine in the near future these engines will start showing up for sale from wrecked cars, etc.

Realize that it is water cooled so cooling would require a radiator like the unit Renegade hybrids sells. Will need to get air flow to the turbo. Also lots of questions about if the engine will physically fit in the 914. Wiring, ECU’s, transaxle, on and on. I get it, it would require a lot of fabrication.

The price of doing a 6 cylinder conversion is straightforward but getting pretty expensive.

The turbo 4 cylinder motors advertise over 300 hp at the crank and it would be cool to have a 914 with a 4 cylinder high horsepower motor.

I bet someone has already done this I just haven’t found anything. Who knows, someday this may be a common swap….

What do y’all think about this idea?
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
 
Reply to this topicStart new topic
Replies
wonkipop
post Dec 14 2025, 03:19 PM
Post #2


914 Guru
*****

Group: Members
Posts: 5,299
Joined: 6-May 20
From: north antarctica
Member No.: 24,231
Region Association: NineFourteenerVille



could be wrong but pretty sure 718 4 is direct injection.
not sure if carbon build up due to EGR in intake ports and manifold is as bad as it is on audi and vw engines but i assume it could be an issue.
just saying.

nice idea though.
a few years back was thinking that a polo aircooled 4 would be my engine of choice for a modded 914. thats if i won the lotto and did not give a second thought about $.
i like the sound of them and i like the idea its lighter than a 6 and preserves the weight factor of why an original 4 was so nice (if not powerful).
User is offlineProfile CardPM
Go to the top of the page
+Quote Post

Posts in this topic


Reply to this topicStart new topic
2 User(s) are reading this topic (2 Guests and 0 Anonymous Users)
0 Members:

 



- Lo-Fi Version Time is now: 16th December 2025 - 05:05 AM
...