Matt Sheppard

Hey John

If you have any of those "paper weight" rods hanging around, box them and keep them for me. I'll take all you've got.

Matt Sheppard

Perry

I'm looking on the PET and I can not find the #'s you are getting.

9442 section:
'86, 87 model year:
main group 1 - engine:
Sub-group 02: Crankshaft and connecting rod
Illustration 102-00

I get 001.00 for all year turbo con rods (?)

Matt Sheppard

I took apart my '83 engine earlier today and guess what I found (besides a perfect crank)

<img src="http://boards.rennlist.com/upload/83rod.jpg" alt=" - " />

Confirmation of what Todd H. asserts. It's the same #'s as to reconed. rods I bought and looks identical, though less shiney and came out of an '83 NA.

So, there are (2) different forged rods used in our cars.

944.103.101.3RARAST
944.103.110.0RARAST

All others are cast.

The PET program proved to be a bit misleading on this one. Perry eats a little crow, John eats a lot of it, and I have 3 sets of forged rods.

I'd like to sell a set if anyone is interested.

Perry 951

I am way confused!!! My version of PET (had it about 3 years now without an update) says:

Model 9442
Year 1986
MG 1
SG 2
Ill 102-00
Part 6

944.103.001.0 for M44/50 with a supersession of 944.103.008.0

944.103.110.0 for M44/51 with a supersession of 944.103.101.3

If you say the 101.3 is from the early NA's, why would there be a supersession to it for the Turbos?

I've had crow before from the list... still odd that we are getting different numbers.

So another puzzling point.. my '87 motor had the 101.3 rods in it. I assumed they were cast, the supersession said so, and my reasoning why I said your rods were cast.

Anyone know where Garrity is? I want my set of forged rods back!!

Peckster

How do they make forged rods? What's the process?

emilysgranny

Peckster ; cast rods are just molten metal poured into a form and allowed to cool before machining. Forged rods are made from a billet that is hammered in a big press. The pounding by the hammer causes the metal grains to become more compacted and thus a denser material which results in a stronger part.The same amount of metal by volume when you start the process will in fact create a diff size part size . It will be smaller on the forged part as that metal will be compressed in the hammering vs just the cast.

User 41221

Quick heads up, the '89 951S motor I picked up a couple of weeks ago has the 944.103.110.0RARST rods in it (um, well... three of them anyway. Don't ask about the number 2 cylinder and piston, unless you have some good advice on sleeving).

Since these are apparently forged rods, is there any real advantage to going with Pauter or Carillo, aside from a bit of extra weight? And does anyone have one rod they'd like to sell me? lol

Regards,

nine-44

This is my understanding, I've been told I'm wrong about this before too. I read a factory Porsche update book, the way it read is, in the turbo cars they introduced the forged rods, this carries until they state otherwise. I found no other updates saying that they went back to a cast rod. Again, I could be wrong, it was a while ago that I read it, and was looking for info because I wanted to turbo my NA and use forged rods.

Matt Sheppard

Man, my head is almost spinning from all this. All I know is that '83's bottom end had not been torn down - from the looks of the gaskets. All the bearings, both rod AND mains matched as far as wear (no rod bearing refresh evidence) - the gaskets were like petrified wood.

Those rods are forged (101.3).

The Turbo rods are forged too, '86. (110.0)

My receipts from the P.O. stated that Garrity sold a set of '86 forged rods to him before the rebuild of the '87 Turbo engine into the 2.7 it is today - Garrity seemed to beleive there is a difference. I am going to tear into THAT motor next week.

I'd love to see pics and experience from others. I'd like to hear and/or see photos of rods from those who have torn apart any post-'83 NA and an unmolested/modified '87, '88, and '89 Turbo motor just to settle my curiosity.

iloveporsches

82's(I'm assuming)and 83's have forged rods, and 86 951's do too. At least as far as I know.

Perry 951

I am pretty sure my '87 was not touched by the time I got it. I'm with Matt, if you tear down a factory assembled motor, let us know what you find.

Matt, you think my motor just happened to get old stock? I can't explain it otherwise.

Danno

"If you say the 101.3 is from the early NA's, why would there be a supersession to it for the Turbos?"

Because you can no longer buy the early forged rods. The supersession shows only parts you can get from the dealer.

If someone can post a picture of the cast rods, all this will make sense. There's a night & day difference between them. Also the early 968 had forged rods, but weren't as good as the forged '86 951 ones.

Perry 951

Danno -

My version of PET shows that the parts should be updated from 110.0 to 101.3. This means you would go back to using the old stock from the '83 cars.. right? Perhaps the 110.0 are far fewer?

User 41221

Which version of Pet do you have, Brian?

Perry 951

Where do you check?