 Doing a top end/upgrade. couple questions, heads, rings and deckheight extremes. |
|
|
|
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. |
|
|
  |
| Twystd1 |
 Mar 19 2007, 10:50 PM
Post
#21
|
|
You don't want to know... really.....  Group: Members Posts: 2,515 Joined: 12-September 04 From: Newport Beach, California Member No.: 2,743  |
Jake says the original rings for Mahle's were PROBABLY Goetz rings.
With a 400 G final finish. C |
   |
 
|
| Crazyhippy |
Mar 19 2007, 10:59 PM
Post
#22
|
|
Insert witty comment here... Group: Members Posts: 1,659 Joined: 28-July 05 From: Home of the Coyotes, AZ Member No.: 4,493 Region Association: None |
Ahem...
(IMG:http://www.carma.com.sg/img/buyersguide/logo/150x150/subaru.gif) They sell them brand new, no need to have the heads welded (IMG:style_emoticons/default/biggrin.gif) (IMG:style_emoticons/default/av-943.gif) BJH (IMG:style_emoticons/default/av-943.gif) |
|
|
|
| brer |
Mar 20 2007, 01:19 AM
Post
#23
|
|
Advanced Member Group: Members Posts: 2,555 Joined: 10-March 05 From: san diego Member No.: 3,736 Region Association: None |
I'll weld them for you Homeboy.
|
|
|
|
| McMark |
Mar 20 2007, 03:07 PM
Post
#24
|
|
914 Freak! Group: Retired Admin Posts: 20,180 Joined: 13-March 03 From: Grand Rapids, MI Member No.: 419 Region Association: None |
I have a vague recollection that Grant rings are CRAP. But I can't remember confidently enough to actually say it. (IMG:style_emoticons/default/wink.gif)
|
|
|
|
| Twystd1 |
Mar 20 2007, 04:08 PM
Post
#25
|
|
You don't want to know... really..... Group: Members Posts: 2,515 Joined: 12-September 04 From: Newport Beach, California Member No.: 2,743 |
I agree with McMark. Same for Total Seal.
Much like John.. I do like the Grant oil ring setup. John knows the guys at Keith Black very well. HGe used to be their In-house R&D guy and master machinist. Have him check with them to see what they use on the Hyper Pistons for rings. That might get ya closer to what you need. On JEs I use the moly coated and 2000 grit half of it off. Then use Dino oil for seating. Just make sure the engine isn't runing super rich. Else you will have the same problem with cylinder/ring wear, like you just had. Thats why the barrels had zip for cross hatch left. IMHO. Fuel washed off the oil and wore the suckers out. In 35K. I would pull the pistons or take the block to Johns so he can measure the ring slots. JUST to make sure that ring flutter hasn't opened up the grooves. Throw the short block in the truck and let him do a quick piston measure if you don't want to pull the pistons out. I am guessing he will feel sorry for you anyway. Cause your are a seriously ugly MOFO. If worse comes to worse on your heads. I have a 2.0 set down there you can use with a rev kit. Call me when you know whassss up... C Bring him Lunch... he loves Greek food, Fruit and ZERO junk food. |
|
|
|
| Aaron Cox |
Mar 20 2007, 06:58 PM
Post
#26
|
|
Professional Lawn Dart Group: Retired Admin Posts: 24,542 Joined: 1-February 03 From: Corona, CA Member No.: 219 Region Association: Southern California |
or you could man up and talk to john (IMG:style_emoticons/default/smile.gif) he misses you
i called him and told him to get new stainless exh valves, and mentioned the goetze rings.... i can throw the block in the truck... AA |
|
|
|
| Matt Romanowski |
Mar 20 2007, 07:25 PM
Post
#27
|
|
Senior Member Group: Members Posts: 878 Joined: 4-January 04 From: Manchester, NH Member No.: 1,507 |
You need to measure the gap in the ring groove with the ring in. That is normally the clearance that they give you due to variations in ring thickness. Can't do that without rings.
|
|
|
|
|
1 User(s) are reading this topic (1 Guests and 0 Anonymous Users)
0 Members:
|
Lo-Fi Version | Time is now: 4th July 2025 - 09:48 PM |
Invision Power Board
v9.1.4 © 2025 IPS, Inc.