What's a 2270?, Displacement clarifications |
|
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. |
|
What's a 2270?, Displacement clarifications |
McMark |
Apr 18 2018, 11:37 AM
Post
#1
|
914 Freak! Group: Retired Admin Posts: 20,179 Joined: 13-March 03 From: Grand Rapids, MI Member No.: 419 Region Association: None |
This question comes up every once in awhile, and did again in another thread. Rather than replying there I figured I'd make a new thread.
The 2270 number comes from 96mm pistons and 78.4 as the stroke. I'm pretty sure this 78.4 BS came from building motors for a racing class (probably under 2.3l) where people were trying to get as close to the limit as possible (more power). But the reality is that most 2270 engines are actually just off-the-shelf 78 stroke cranks. So 2258 is a better general reference term, I'd say it's more representative of what the engine is. But it doesn't roll off the tongue. I've moved to simply referring to them as 2.3l engines. If you REALLY want to be accurate, the '2270' that I'm assembling right now had a crank 78.26 and a 96mm bore. So really it's a 2266... (IMG:style_emoticons/default/rolleyes.gif) So call it a 2270, a 2258, or a 2.3l -- they're all the same idea and none are really all that accurate. |
BeatNavy |
Apr 18 2018, 11:42 AM
Post
#2
|
Certified Professional Scapegoat Group: Members Posts: 2,933 Joined: 26-February 14 From: Easton, MD Member No.: 17,042 Region Association: MidAtlantic Region |
Thanks for the info, Mark! I always enjoy being educated.
So call it a 2270, a 2258, or a 2.3l -- they're all the same idea and none are really all that accurate. I just hoped to call one 'mine' one day (IMG:style_emoticons/default/smile.gif) Having said that, "2.3" is nice and succinct. |
McMark |
Apr 18 2018, 11:45 AM
Post
#3
|
914 Freak! Group: Retired Admin Posts: 20,179 Joined: 13-March 03 From: Grand Rapids, MI Member No.: 419 Region Association: None |
|
JeffBowlsby |
Apr 18 2018, 06:56 PM
Post
#4
|
914 Wiring Harnesses Group: Members Posts: 8,663 Joined: 7-January 03 From: San Ramon CA Member No.: 104 Region Association: None |
|
McMark |
Apr 19 2018, 05:32 AM
Post
#5
|
914 Freak! Group: Retired Admin Posts: 20,179 Joined: 13-March 03 From: Grand Rapids, MI Member No.: 419 Region Association: None |
Factory stock 2.0L is 1971cc not 1975. I knew when I typed it that I should look that up and make sure I remembered it right. (IMG:style_emoticons/default/slap.gif) Thanks for setting me straight, I'll correct it. (IMG:style_emoticons/default/first.gif) |
Lo-Fi Version | Time is now: 27th September 2024 - 10:52 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 ... |