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 )

3 Pages V < 1 2 3 >  
 Reply to this topicStart new topic
> Part # Verification for Mahle 2.2S Pistons, can someone help me out on this?
ArtechnikA
post Aug 19 2004, 02:24 PM
Post #21


rich herzog
*****

Group: Members
Posts: 7,390
Joined: 4-April 03
From: Salted Roads, PA
Member No.: 513
Region Association: None
QUOTE(seanery @ Aug 19 2004, 12:10 PM)
The plan is E cams with weber 40s. EBS said they'd port the heads to S spec.

i'm debating that very thing, i wonder if it's needed with the E cams - they have much less lift and duration than the S. T/E/S all had the same valve sizes; i wonder if you'd actually lose port velocity increasing area without a cam change ...
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
J P Stein
post Aug 19 2004, 02:31 PM
Post #22


Irrelevant old fart
*****

Group: Members
Posts: 8,797
Joined: 30-December 02
From: Vancouver, WA
Member No.: 45
Region Association: None
QUOTE(Cap'n Krusty @ Aug 19 2004, 12:01 PM)
503-45-90 is a 2.2T, FWIW The Cap'n

FWIW indeed.
Those aren't T cylinders....... (IMG:style_emoticons/default/confused24.gif)

Some box swapping?
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
J P Stein
post Aug 19 2004, 02:33 PM
Post #23


Irrelevant old fart
*****

Group: Members
Posts: 8,797
Joined: 30-December 02
From: Vancouver, WA
Member No.: 45
Region Association: None
QUOTE(ArtechnikA @ Aug 19 2004, 12:24 PM)
QUOTE(seanery @ Aug 19 2004, 12:10 PM)
The plan is E cams with weber 40s. EBS said they'd port the heads to S spec.

i'm debating that very thing, i wonder if it's needed with the E cams - they have much less lift and duration than the S. T/E/S all had the same valve sizes; i wonder if you'd actually lose port velocity increasing area without a cam change ...

Solex cams are bout half way between the E & S.
You'll never guess what I used (IMG:style_emoticons/default/biggrin.gif)
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
Cap'n Krusty
post Aug 19 2004, 02:33 PM
Post #24


Cap'n Krusty
**********

Group: Members
Posts: 10,794
Joined: 24-June 04
From: Santa Maria, CA
Member No.: 2,246
Region Association: Central California
The main bearings have the same part number through 1974, leading me to believe they're the same size. The Cap'n
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
seanery
post Aug 19 2004, 02:43 PM
Post #25


waiting to rebuild whitey!
***************

Group: Retired Admin
Posts: 15,852
Joined: 7-January 03
From: Indy
Member No.: 100
Region Association: None
my cam chart


Attached File(s)
Attached File  2.2_cams ( 72.18k ) Number of downloads: 0
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
seanery
post Aug 19 2004, 02:46 PM
Post #26


waiting to rebuild whitey!
***************

Group: Retired Admin
Posts: 15,852
Joined: 7-January 03
From: Indy
Member No.: 100
Region Association: None
Cap'n I missed your p/n post earlier.
Thanks, looks like we know we're in the ball park.
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
ArtechnikA
post Aug 19 2004, 02:49 PM
Post #27


rich herzog
*****

Group: Members
Posts: 7,390
Joined: 4-April 03
From: Salted Roads, PA
Member No.: 513
Region Association: None
QUOTE(Cap'n Krusty @ Aug 19 2004, 12:33 PM)
The main bearings have the same part number through 1974, leading me to believe they're the same size. The Cap'n

you are correct - i found where i read that - it was the rod bearings - the journal was reduced in diameter and increased in width to keep the bearing area the same.

the same reference (Anderson 1) says "through 1970" didn't have squirters but they started in '71 -- so it looks like later 2,2's had 'em, and early ones didn't... i plan to run forged pistons, so my engine is getting the uprated Turbo squirters whether it's got any now or not...
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
J P Stein
post Aug 19 2004, 02:59 PM
Post #28


Irrelevant old fart
*****

Group: Members
Posts: 8,797
Joined: 30-December 02
From: Vancouver, WA
Member No.: 45
Region Association: None
Where were youz guys when I was offloading all my 2.4L engine bits....cheep.
5r case (nice)
crank/rods (perfect)
non injected heads

yada, yada.....your timing sux. (IMG:style_emoticons/default/laugh.gif)

Still have T cams iff'n ya need em'......nobody wants those. (IMG:style_emoticons/default/biggrin.gif)

I still have a collection of misc. bits, so get aholt of me first if you have needs.
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
ArtechnikA
post Aug 19 2004, 03:01 PM
Post #29


rich herzog
*****

Group: Members
Posts: 7,390
Joined: 4-April 03
From: Salted Roads, PA
Member No.: 513
Region Association: None
QUOTE(seanery @ Aug 19 2004, 12:43 PM)
my cam chart

those are 2,0 cam numbers...

your first column should read "intake lift at overlap TDC" (the cam timing spec ...)
that's the same for 2,0 and 2,2 cams. the events are different for 2,2's tho...

T E S
intake opens 15* BTC 20*BTC 38* BTC
intake closes 29* ABC 34* ABC 50*ABC
exhaust opens 41* BBC 40* BBC 40* BBC
exhaust closes 5* BTC 6* ATC 20* ATC

actually - it looks like T and S are the same, but the 2,2E cam got hotter...
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
J P Stein
post Aug 19 2004, 03:20 PM
Post #30


Irrelevant old fart
*****

Group: Members
Posts: 8,797
Joined: 30-December 02
From: Vancouver, WA
Member No.: 45
Region Association: None
What is not shown here is lobe centers. Generally, the closer the lobe centers, the more overlap.

Lobe centers for the S is 97 deg (int to exh)
Solex is 97 deg
E is 102.

AIR, the intake lift at overlap for the Solex is 4.0-4.3. The lift and duration is about the same as the E cams.
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
seanery
post Aug 19 2004, 03:37 PM
Post #31


waiting to rebuild whitey!
***************

Group: Retired Admin
Posts: 15,852
Joined: 7-January 03
From: Indy
Member No.: 100
Region Association: None
Since I haven't actually disassembled this motor I have a question about cams & bearings.

Webcam lists 3 and 4 bearing cams, when did this change occur?
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
ArtechnikA
post Aug 19 2004, 03:44 PM
Post #32


rich herzog
*****

Group: Members
Posts: 7,390
Joined: 4-April 03
From: Salted Roads, PA
Member No.: 513
Region Association: None
QUOTE(seanery @ Aug 19 2004, 01:37 PM)
Webcam lists 3 and 4 bearing cams, when did this change occur?

1978
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
seanery
post Aug 19 2004, 04:09 PM
Post #33


waiting to rebuild whitey!
***************

Group: Retired Admin
Posts: 15,852
Joined: 7-January 03
From: Indy
Member No.: 100
Region Association: None
ok, so all the 2.0-2.7 production motors are 3 bearing, correct?
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
ArtechnikA
post Aug 19 2004, 04:14 PM
Post #34


rich herzog
*****

Group: Members
Posts: 7,390
Joined: 4-April 03
From: Salted Roads, PA
Member No.: 513
Region Association: None
QUOTE(seanery @ Aug 19 2004, 02:09 PM)
ok, so all the 2.0-2.7 production motors are 3 bearing, correct?

i didn't see anything that came right out and said so, but that is my inference, yes.
i have been led to believe the 4-bearing cam boxes can be used on early cases but i haven't personally checked it out.

but i THINK i recall having seen references to people with pre 3,0 engines using GE-billet cams, and AFAIK those were all made on 4-bearing billets. so - i donno how they did it *exactly* but there are many hints...
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
seanery
post Aug 19 2004, 04:26 PM
Post #35


waiting to rebuild whitey!
***************

Group: Retired Admin
Posts: 15,852
Joined: 7-January 03
From: Indy
Member No.: 100
Region Association: None
what I've read in the BA text infers that the later cam towers can be used.

Now I know what I need to ask for- If I get Webcam ground cams.
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
ArtechnikA
post Aug 19 2004, 04:34 PM
Post #36


rich herzog
*****

Group: Members
Posts: 7,390
Joined: 4-April 03
From: Salted Roads, PA
Member No.: 513
Region Association: None
QUOTE(seanery @ Aug 19 2004, 02:26 PM)
Now I know what I need to ask for- If I get Webcam ground cams.

WebCams are good cams.
i was planning on using GE-60 with my 2,8 but i think i'll just continue to use the E-cams with the 2,2+ -- as long as they check out. if there are wear issues, i'll have to revisit the whole issue again...
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
Eric_Shea
post Aug 19 2004, 04:53 PM
Post #37


PMB Performance
***************

Group: Admin
Posts: 19,275
Joined: 3-September 03
From: Salt Lake City, UT
Member No.: 1,110
Region Association: Rocky Mountains
Those look like 2.2/2.4 S pistons.

At $1200.00 Buy them.

I have a 2.4 T crank you can buy.

4 bearing cam housings don't fit earlier engines (me has been told... could be wrong).
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
seanery
post Aug 19 2004, 05:04 PM
Post #38


waiting to rebuild whitey!
***************

Group: Retired Admin
Posts: 15,852
Joined: 7-January 03
From: Indy
Member No.: 100
Region Association: None
Eric, is there a difference between the 2 (2.2 and 2.4)?
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
ArtechnikA
post Aug 19 2004, 05:51 PM
Post #39


rich herzog
*****

Group: Members
Posts: 7,390
Joined: 4-April 03
From: Salted Roads, PA
Member No.: 513
Region Association: None
QUOTE(seanery @ Aug 19 2004, 03:04 PM)
Eric, is there a difference between the 2 (2.2 and 2.4)?

more reading (i should be working ...)

Anderson(1) reports the 2,4 piston used the same pin height (so that won't help to know...) but material was removed from the crown to reduce the compression ratio and account for the stroke difference.

and JP's weighed in that the pistons in the picture aren't 2,4 pistons. so the question is - are they 2,2E or 2,2S ? i don't know that i've seen anyplace with all the pistons lines up together for identification purposes ... based on the picture that's identified as being a 2,0 S piston, i'd hafta say that looks pretty darned close.

if it's a "buy or not" decision, it sounds like the price is right, and even if it turns out they're not exactly what you want, you've got a good enough deal that you can resell them and come out okay ...
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
seanery
post Aug 19 2004, 06:25 PM
Post #40


waiting to rebuild whitey!
***************

Group: Retired Admin
Posts: 15,852
Joined: 7-January 03
From: Indy
Member No.: 100
Region Association: None
That sounds like a pretty good consensus.

I'm gonna offer him a grand (just cause I'm a dick) to see if I can get an even better deal!
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
« Next Oldest · 914World Garage · Next Newest »
 

3 Pages V < 1 2 3 >
Reply to this topicStart new topic
1 User(s) are reading this topic (1 Guests and 0 Anonymous Users)
0 Members:

 

Display Mode: Standard · Switch to: Linear+ · Switch to: Outline

Track this topic · Email this topic · Print this topic · Subscribe to this forum

- Lo-Fi Version Time is now: 19th May 2024 - 10:23 AM
Invision Power Board v9.1.4 © 2024  IPS, Inc.
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 ...