blown 87

I bet this would do it.

belgiumbarry

sorry to spoil a bit the fun but IMHO those are the weakest, cheapest Porsche ever made... those are indeed the types used in the 928 GT ( which is a S4 with only other cams specs ) and the 944 S2 engines......years around '90.

Only later there are the real forged ones in the 928GTS and 968 3.0 l ...

We think ( know) the even older types "sintermetal" are stronger ....

sorry for the reply, just my opinion....
Norbert

Cheburator

I have a question - does anyone on the list actually have any hard empirical data on which set of rods is stronger? I know that Porsche recommended changing the 1R rods from the early MYs GTS to 2R, but there is nothing out on the GT vs. S4 rods. Moreover, drnick of Orange Car fame had 1R rods in his GTS, which were thrashed extensively around the Ring and various trackdays in the UK without any problems. Aren't we exaggerating the dangers a little bit too much?

P.S. I have forged rods in both my 32v engines - a 1990GT and a 1995GTS, and something or other in my 1984S2 Euro twin-dizzy...

blown 87

I think I will go with Greg's recommendations, thanks for playing.

Seriously, I don't know if you are trying to be funny or not.

belgiumbarry

sorry, not playing... those are the types with problems in 944 racers... ok, maybe coincidence ,we know of such that break. Don't think they are even really "forged".

Perhaps you can inform for a third opinion ?

Norbert

blown 87

Well, these are the ones going into my engines, when it comes to 928 engines Greg Brown is considered the expert , and yes I think they are forged because of the parting line from where they were drop hammered.

I would love to hear about the problems you are talking about with the 944's with GT rods.

Again, not sure what you mean by "Perhaps you can inform for a third opinion ?"

I think we speak a different version of English, and I mean no disrespect by that, I am sure I could not understand some of our northern members in person either.

belgiumbarry

I don't know Greg, what i mean, don't believe me in years and for a second not Greg Brown... just inform a third opion.. but from one who has real experience with rods ... not just any random Rennlist member who thinks he had heard saying that a friend is saying.....
Norbert

PS boobies make me smile to
and... seeing the replys on your thread....hhmmm.. many members here don't have a single clue about engine parts... sorry, perhaps i start a war here, but i don't care, i'm Europe, you guys are US... i'm not arguing getting my opinion right ! ... let everybody get's his wishes... but i'm titled to write my opion. Or "they" just ban me. No problem.My opion ? Rennlist is a café, big talking among "friends" after the workhours, with a drink or 2 , which is nice but ... don't take everything for granted... The amateurs believe everything they see , the profs don't tell everything. That's live.
Norbert

DR

Hi Barry,

Can you give us some insight that brought you to your conclusion? Actual strenght testing? I wouldn't be surprised if you have done it. Experience with failures on 928 engines with these rods, or experience with similar rods in "non-928s" ? Etc, etc.

Sometimes a little light shed on a subject can help. If you don't mind sharing, we would all benefit from the details that you have that make you "know" for sure.

Thanks,

belgiumbarry

yes, i can try to find some "proves", but i still clame they are the wekest rods ever made by Porsche. Just "DYE CAST" ( spelling ? ) ones .. again, sorry.
Norbert

Experience is in 944 race engines...but what is the difference ????

DR

It would be great to see some "proves", I learn something new about 928s everyday, and don't plan to stop trying to learn.

I don't understand what 944 rods have to do with 928 rods? Aren't they different part numbers? And doesn't an inline 4 create different stresses than a V-8?

Excuse my ignorance, I'm not an engine builder and never claimed to be, but I do like to stay informed and learn stuff.

Thanks and I look forward to gain knowledge from your actual experiance (as well as everyone else's), especially if it's strickly 928 related.

belgiumbarry

Ok, we relate 944 to 928 as the HP/liter .... that's what rods have to deliver, no ? ... i'm no GOD at all, please Geg Brown chime in....

belgiumbarry

again, my friend, strange to see other opions i reckon...

PS why, in gods name , i would be taking you for a joke ????????????

blown 87

So do you have any thing that gives any support to your claim that.

1 they are not forged rods
2 they are the weakest rods Porsche has ever made?

I know for a fact that Greg Brown thinks they are the best factory rods for a 928.

I am not trying to speak for him, but he has said that before here.

DR

For clarity sake, I fixed it for ya.

blown 87

Barry, so you have had failures with 928 GT rods in a 944 that were the rods fault, not a toasted bearing that lead to a rod getting kicked out.

Just do we are on the same page here.