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-   911 Engine Rebuilding Forum (http://forums.pelicanparts.com/911-engine-rebuilding-forum/)
-   -   911 ST Engine Specs (http://forums.pelicanparts.com/911-engine-rebuilding-forum/431496-911-st-engine-specs.html)

Flieger 10-04-2008 09:57 AM
Is this an MFI engine or carburetors?

This also is a Rally kit engine, I wonder if there were differences between cars used in rally and circuit races.

BURN-BROS 10-04-2008 10:51 AM
Quote:
Originally Posted by CanuckRS (Post 4218546)
Aaron,

Do you have this type of document for the other ST motors we are discussing ??

If so, can you post them...

Does anyone know what type of work the factory may have done on these cases ??

TIA
Sorry, I do not.

However, The sheet posted is the formula porsche used on most of the racing engines. Diffences would have been induction and rod material.

Yzerman-45 10-15-2008 06:10 AM
Quote:
Originally Posted by Flieger (Post 4218629)
Is this an MFI engine or carburetors?

This also is a Rally kit engine, I wonder if there were differences between cars used in rally and circuit races.
Hi there! I am thinking of building my self an ST replica up here in cold Norway. (crazy??maybe...):)
Anyway.. All the ST had carburetors, and i think theres was 40 IDA,s with some "slight" modifications.
My car (a 1965 912 originally) has an 2,7 with 40 IDA,s.http://forums.pelicanparts.com/uploa...1224079789.jpg

CanuckRS 10-15-2008 06:34 AM
To the best of my knowledge, all the ST motors had either MFI or Weber 46mm IDAs...

BURN-BROS 10-15-2008 08:41 AM
Quote:
Originally Posted by CanuckRS (Post 4239729)
To the best of my knowledge, all the ST motors had either MFI or Weber 46mm IDAs...

Correct, either hi-butterfly MFI or the 46's were the "normal" specs for this motor type.

Flieger 10-15-2008 11:44 AM
Quote:
Originally Posted by Yzerman-45 (Post 4239682)
Hi there! I am thinking of building my self an ST replica up here in cold Norway. (crazy??maybe...):)
Anyway.. All the ST had carburetors, and i think theres was 40 IDA,s with some "slight" modifications.
My car (a 1965 912 originally) has an 2,7 with 40 IDA,s.http://forums.pelicanparts.com/uploa...1224079789.jpg
There were some MFI engines as well.

Do you know "Fredrick 911" who made a DVD at the Nuerburgring Nordschlieffe with a 911ST? He also got the urge to build an ST replica. Not easy in Norway...

Yzerman-45 10-16-2008 01:03 AM
I knew that there wher 46 IDA.s, i just pressed the wrong buttons... :o)
I did not knew that there where some ST,s with MFI,s. Are you sure??
Fredrik is my "brother in law" (i am not married to, but live together with his sister!)
Fredrik and me are also best friends with Christer,( "Mr." raceunivers.com) who is also part of the Nürburgringfilm.I will advice all you "petrolheads" like me to visit Christer,s site! www. raceunivers.com
All of you with PRE 73, are also welcome to join our PRE 73 forum: http://porschepre73.ning.com/


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