 2 ltr from 1.7 ltr motor |
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| jb57tub |
 May 13 2019, 08:26 PM
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#1
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jb57tub  Group: Members Posts: 23 Joined: 9-January 19 From: Corpus Christi, Tx Member No.: 22,790 Region Association: Southwest Region  |
What machine work needs to be done on an early 1.7 case to convert it to a stock 2 ltr motor? thanks for any help, Jon
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| mepstein |
May 13 2019, 08:32 PM
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#2
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914-6 GT in waiting Group: Members Posts: 19,316 Joined: 19-September 09 From: Landenberg, PA/Wilmington, DE Member No.: 10,825 Region Association: MidAtlantic Region 
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None
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| porschetub |
May 13 2019, 09:55 PM
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#3
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Advanced Member Group: Members Posts: 4,706 Joined: 25-July 15 From: New Zealand Member No.: 18,995 Region Association: None |
The 2.0 914 was achieved by using the old time procedure of off-set grinding to increase stroke with a 66mm crank to 71mm,the big end journal was reduced in diameter in the process ,and then with an increase of 1mm in the bore made under 2000cc .
I understand this development was done by Porsche engineering genius Hans Mezger (RIP) which would have been a "walk in the park for him "considering the amazing race engines he designed. I honestly don't now the benefits of doing this conversion because I've never done it,some say a big bore 66mm crank motor is better as it revs easily in our (light) cars. Engine builders please chime in,rant over (IMG:style_emoticons/default/beerchug.gif) |
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Posts in this topic
jb57tub 2 ltr from 1.7 ltr motor May 13 2019, 08:26 PM
Cupomeat
What machine work needs to be done on an early 1.... May 13 2019, 08:31 PM
914_teener
The 2.0 914 was achieved by using the old time pr... May 14 2019, 08:30 AM BeatNavy
None
:agree: Short answer is none. And 1.7 ca... May 14 2019, 05:11 AM dr914@autoatlanta.com seems to me I remember that there is a bit more re... May 14 2019, 08:36 AM Tbrown4x4 I believe the thinking behind using the 1.7L case ... May 14 2019, 09:26 AM mepstein
I believe the thinking behind using the 1.7L case... May 14 2019, 09:30 AM Mikey914 I have a 72 1.7 that's now a 1911 and pulls ju... May 14 2019, 02:25 PM Highland What is the 1911cc configuration often referenced ... May 14 2019, 04:27 PM BeatNavy
What is the 1911cc configuration often referenced... May 14 2019, 04:50 PM |
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