 96 mm cylinder question, Difference between 1.7- 2.0? |
|
|
|
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. |
|
|
| Jgilliam914 |
 Feb 18 2025, 09:13 AM
Post
#1
|
|
914 Guru  Group: Members Posts: 5,370 Joined: 30-July 12 From: Iowa / Florida Member No.: 14,732 Region Association: Upper MidWest  |
I was digging through a storage tote and found a set of NPR 96mm pistons and cylinders.
Is there a difference between one that fits a 1.7 vs a 2.0? |
   |
 
|
  |
Replies
| davep |
Feb 19 2025, 04:00 PM
Post
#2
|
|
914 Historian Group: Benefactors Posts: 5,314 Joined: 13-October 03 From: Burford, ON, N0E 1A0 Member No.: 1,244 Region Association: Canada  |
Said differently, the rods differ due to the size of the big end, predominantly. As to the length of the rods, and thus the positioning of the piston face at top dead center that I do not know. But if Clay can successfully run a 1.8 crank and rods with 2.0 pistons and cylinders then it appears all is well.
AFAIK, the cylinders are the same height, and the pushrods are the same so the overall width of the engines do not change. Therefore the only possible difference in the 96mm set could be the position of the wrist pin. |
|
|
|
Posts in this topic
Jgilliam914 96 mm cylinder question Feb 18 2025, 09:13 AM
brant Yes.
Wrist pin height as you have to use the rods... Feb 18 2025, 09:32 AM
ClayPerrine
Yes.
Wrist pin height as you have to use the rod... Feb 19 2025, 06:29 AM bdstone914
@[url=http://www.914world.com/bbs2/index.php?sh... Feb 19 2025, 07:09 AM ClayPerrine
@[url=http://www.914world.com/bbs2/index.php?s... Feb 19 2025, 08:08 AM brant well now I'm confused too....
the stroke on a... Feb 19 2025, 10:24 AM Artfrombama Are the rods between 1.7, 1.8, 2.0 different lengt... Feb 19 2025, 11:06 AM brant
Are the rods between 1.7, 1.8, 2.0 different leng... Feb 19 2025, 02:20 PM Montreal914 2.0 rod has a smaller crank end diameter due to 2.... Feb 19 2025, 03:04 PM ClayPerrine
2.0 rod has a smaller crank end diameter due to 2... Feb 19 2025, 03:46 PM 914sgofast2 The 1.7 liter and 1.8 liter rods are the same leng... Feb 19 2025, 04:25 PM Front yard mechanic Nice can you build one for me Feb 19 2025, 06:50 PM Dave_Darling If you measure the rods end to end, they are the s... Feb 19 2025, 07:21 PM zig-n-zag I measured the wrist pin to the piston top for a 9... Feb 19 2025, 08:08 PM 914werke I measured the [u]wrist pin to the piston top for... Sep 15 2025, 12:53 PM 914werke Note:
the 96mm barrels (P&C kits?) that will... Sep 15 2025, 01:13 PM cgnj NPR slipper pistons were a thing in 80's and 9... Sep 15 2025, 01:31 PM Dave_Darling There were kits sold for 1.7s that did not require... Sep 15 2025, 02:49 PM |
|
Lo-Fi Version | Time is now: 15th September 2025 - 04:59 PM |
Invision Power Board
v9.1.4 © 2025 IPS, Inc.