ALL MY83 pistons forged?
#1
Race Director
Thread Starter
ALL MY83 pistons forged?
Do all 83 944 engines have forged pistons? Is this fact or rumor? I just picked up 2 engines... 1 good 83 engine and one S engine with a cracked block.. Just wondering..
#6
Hey Man
Rennlist Member
Rennlist Member
The 83 and up to mid-84 were all forged rods. But don't confuse forged NA rods with forged turbo pistons though; two different animals completely. What page did that info come out of the Shop Manual?
#7
Jgporsche you are not reading the workshop manual correctly. It states that the rods were forged steel/cast since february 1984. This means that all 944's produced before sometime in february of 1984 had forged connecting rods. The pistons in the USA market cars are cast, the Euro pistons are forged. All 944 Turbo's came with forged rods and pistons. All cranks are forged.
Trending Topics
#8
Herr Unmöglich
Rennlist Member
Rennlist Member
Hmmm... interesting thread, didn't know that. So what I need to do is swap the rods and maybe pistons from my 83 block into my 87?
I know there is an early-to-late engine swap thread somewhere....*runs off to search*
I know there is an early-to-late engine swap thread somewhere....*runs off to search*
#9
your '87 pistons have a higher compression ratio, 9.7:1 vs. 9.5:1 for the '83....there is nothing wrong with cast rods, and you are risking screwing something up in the process
#11
Herr Unmöglich
Rennlist Member
Rennlist Member
I plan on building up the 83 motor out of the car and then just swapping it out... nice to have a spare. Plus the 87 has 155K the top end is brand new but I am pretty sure the bottom end has not been opened. Not sure what my path will be just yet, but still good to know some of the differences between the two. Any way to tell from the outside, like casting marks on outside edges of the rods or what?
#13
Originally Posted by tod84944
87 pistons actually have the same compression as the 83's, it is the 88 pistons that have the higher compression ratio.
#14
Drifting
Join Date: Jul 2002
Location: goodlettsville,tn
Posts: 2,476
Likes: 0
Received 0 Likes
on
0 Posts
944CS, you might want to double check your info on the compression ratio for a 87. I don't have access to the shop manuals at the moment, but I pasted this chart from Paragon Products.
Categories
911 (8)
914 (4)
924/944/968 (58)
928 (1)
986 (Boxster) (2)
General Automotive (6)
Paragon Products FAQ (4)
Product Info (13)
Racing (9)
Search Articles
Advanced Search
Ask a question
Engine Production < 924/944/968 < Main Page
Engine Production
Author: Skip
Engine: (USA values - to locate the "code", look for another Tech-Session article regarding Engine Identification)
944 - 8 Valve, Normally Aspirated
MY Code Size Comp HP TQ Max RPM Weight Note
83-85.1 M44/02 2479 9.5 147 137 6500 366 Man
83-85.1 M44/04 2479 9.5 147 137 6500 366 Auto
85.2-87 M44/07 2479 9.5 147 137 6500 366 Man
85.2-87 M44/08 2479 9.5 147 137 6500 366 Auto
88 M44/09 2479 10.2 158 155 6640 373 Man
88 M44/10 2479 10.2 158 155 6640 373 Auto
89 M44/11 2681 10.9 162 166 6560 366 Man
89 M44/12 2681 10.9 162 166 6560 366 Auto
944S - 16 Valve, Normally Aspirated
MY Code Size Comp HP TQ Max RPM Weight Note
87-88 M44/40 2479 10.9 188 170 6840 386
944S2 - 16 Valve, Normally Aspirated
MY Code Size Comp HP TQ Max RPM Weight Note
89-91 M44/41 2990 10.9 208 207 6480 386
951 - 8 Valve, Turbocharged
MY Code Size Comp HP TQ Max RPM Weight Note
86-88 M44/51 2479 8 217 6500
88S-89 M44/52 2479 8 247 6500
968 - 16 Valve, Normally Aspirated
MY Code Size Comp HP TQ Max RPM Weight Note
92-95 M44/43 2990 11 236 225 6500
Last Modified: 2004-05-11 Number of views: 2497
Print This Save This E-mail This Talk About This ( 0 )
Was this article helpful?
Yes No
Related Articles
What is Tech-Session.com? How can I help?
Hello, and welcome to the Paragon Products Tech-Session. This site is here for you. The ... Where is Paragon Products located?
Paragon Products, Inc.5602 Old Brownsville Rd. F-1Corpus Christi, Texas 78417 ... Why Paragon Products?
paragon [parˇaˇgon] - a model of excellence or perfection Welcome to Paragon Products! For more ...
Categories
911 (8)
914 (4)
924/944/968 (58)
928 (1)
986 (Boxster) (2)
General Automotive (6)
Paragon Products FAQ (4)
Product Info (13)
Racing (9)
Search Articles
Advanced Search
Ask a question
Engine Production < 924/944/968 < Main Page
Engine Production
Author: Skip
Engine: (USA values - to locate the "code", look for another Tech-Session article regarding Engine Identification)
944 - 8 Valve, Normally Aspirated
MY Code Size Comp HP TQ Max RPM Weight Note
83-85.1 M44/02 2479 9.5 147 137 6500 366 Man
83-85.1 M44/04 2479 9.5 147 137 6500 366 Auto
85.2-87 M44/07 2479 9.5 147 137 6500 366 Man
85.2-87 M44/08 2479 9.5 147 137 6500 366 Auto
88 M44/09 2479 10.2 158 155 6640 373 Man
88 M44/10 2479 10.2 158 155 6640 373 Auto
89 M44/11 2681 10.9 162 166 6560 366 Man
89 M44/12 2681 10.9 162 166 6560 366 Auto
944S - 16 Valve, Normally Aspirated
MY Code Size Comp HP TQ Max RPM Weight Note
87-88 M44/40 2479 10.9 188 170 6840 386
944S2 - 16 Valve, Normally Aspirated
MY Code Size Comp HP TQ Max RPM Weight Note
89-91 M44/41 2990 10.9 208 207 6480 386
951 - 8 Valve, Turbocharged
MY Code Size Comp HP TQ Max RPM Weight Note
86-88 M44/51 2479 8 217 6500
88S-89 M44/52 2479 8 247 6500
968 - 16 Valve, Normally Aspirated
MY Code Size Comp HP TQ Max RPM Weight Note
92-95 M44/43 2990 11 236 225 6500
Last Modified: 2004-05-11 Number of views: 2497
Print This Save This E-mail This Talk About This ( 0 )
Was this article helpful?
Yes No
Related Articles
What is Tech-Session.com? How can I help?
Hello, and welcome to the Paragon Products Tech-Session. This site is here for you. The ... Where is Paragon Products located?
Paragon Products, Inc.5602 Old Brownsville Rd. F-1Corpus Christi, Texas 78417 ... Why Paragon Products?
paragon [parˇaˇgon] - a model of excellence or perfection Welcome to Paragon Products! For more ...