Engine / Gearbox numbers discrepancy
Posted: Wed Jul 14, 2021 3:03 pm
Hi, I've bought a USA 1970T which I don't actually have my hands on yet and I'm keen to clear up what the original engine/gearbox are.
I understand it to be a 2.2T and it definitely has a clutch!!
Porsche COA shows engine number 6108739, which, if I'm interpreting the widely available table correctly, suggests this is a USA spec SPM or Sportomatic engine:
911 T (USA)(CDN) 911.07 70 610 5001>> 6ZYL/2,2L /92KW
911 T SPM (USA)(CDN) 911.08 70 610 8001>> 6ZYL/2,2L /92KW
911 T 911.03 71 611 0001>> 6ZYL/2,2L /92KW
However the Porsche COA says transmission number 7108912 which according to here https://blueskymotorsports.com/index.ph ... 7&Itemid=6 sits in the range 7100001 - 7109999 (MY 1970), and that reads off as a five speed:
911/01 5 7:31 S A GA O V ZA
and the note says:
1970-71 911E, 911S
which implies this is the gearbox from an E or S rather than a T.
Porsche COA Optional equipment just says USA, Bumper Horns, Blaupunkt radio (US band), tinted glass, Dunlop Tires (sic).
Given the clutch in the floor and the 911/01 gearbox number it seems likely we can trust the COA and this has a 911/01 box - but why the "SPM" designation against the engine number, and why the E/S designation in the gearbox notes?
I understand it to be a 2.2T and it definitely has a clutch!!
Porsche COA shows engine number 6108739, which, if I'm interpreting the widely available table correctly, suggests this is a USA spec SPM or Sportomatic engine:
911 T (USA)(CDN) 911.07 70 610 5001>> 6ZYL/2,2L /92KW
911 T SPM (USA)(CDN) 911.08 70 610 8001>> 6ZYL/2,2L /92KW
911 T 911.03 71 611 0001>> 6ZYL/2,2L /92KW
However the Porsche COA says transmission number 7108912 which according to here https://blueskymotorsports.com/index.ph ... 7&Itemid=6 sits in the range 7100001 - 7109999 (MY 1970), and that reads off as a five speed:
911/01 5 7:31 S A GA O V ZA
and the note says:
1970-71 911E, 911S
which implies this is the gearbox from an E or S rather than a T.
Porsche COA Optional equipment just says USA, Bumper Horns, Blaupunkt radio (US band), tinted glass, Dunlop Tires (sic).
Given the clutch in the floor and the 911/01 gearbox number it seems likely we can trust the COA and this has a 911/01 box - but why the "SPM" designation against the engine number, and why the E/S designation in the gearbox notes?