It's 928 Trivia Day!
#77
928 Collector
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In which year was the heater core elbow on the passenger head pressed-in, prone to failure, and when was this part superseded with a brazed piece?32V, fixed in 1988
#78
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Its possible squirter block delete was little before wing change. Early S4 intake and aluminum oil filler neck is fairly sure way to expect block to have squirters too.
I have seen two live and several others in pics.
#79
Captain Obvious
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When did the rear hatch change to accept the S4 wing?
’86.5….The rear hatch had the indentations at the bottom to accept the S4 wing yet still had the S wing installed.
’86.5….The rear hatch had the indentations at the bottom to accept the S4 wing yet still had the S wing installed.
#83
Fleet of Foot
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![Smilie](https://rennlist.com/forums/images/smilies/smile.gif)
![Smilie](https://rennlist.com/forums/images/smilies/smile.gif)
Oh.. and the question: Is this thread a repost?
![Smilie](https://rennlist.com/forums/images/smilies/smile.gif)
Yes!
#84
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It was twin turbo S4 prototype done in '87-88 for development purposes, not for Ferry Porsche. Engine was modified version of 750hp boat engine build for offshore power boat racing. Jacky Ickx participated to one race in Europe with that engine after his retirement from Porsche factory group C drive. Sponsors pulled out of the project after that.
Later Kremer brothers would have liked to use this engine in 962 group C racer to compete against Sauber Mercedes C9 but factory didn't believe Kremer's could get sporsor package together and idea died. Kremer's thought that they could get few more competitive years out of 956/962 design with engine change.
Later Kremer brothers would have liked to use this engine in 962 group C racer to compete against Sauber Mercedes C9 but factory didn't believe Kremer's could get sporsor package together and idea died. Kremer's thought that they could get few more competitive years out of 956/962 design with engine change.
#88
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When did the rear seat back release switch from the outboard side of the seat to the inboard side of the seat?
When they switched to the three point seatbelt in the 1988 S4
Later,
Tom
89GT
82 Track car
When they switched to the three point seatbelt in the 1988 S4
Later,
Tom
89GT
82 Track car
#89
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When did CASIS end in the 928... (computer aided shift indicator system??).
I believe it was done away with when the 85/86 928 S was introduced
When was it introduced?...that I don't know but hazard a guess in 83 with the US model 928S.
Later,
Tom
89Gt
82 track car
I believe it was done away with when the 85/86 928 S was introduced
When was it introduced?...that I don't know but hazard a guess in 83 with the US model 928S.
Later,
Tom
89Gt
82 track car
#90
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When did Porsche add the exhaust temp sensors to the 928?
In 1989
What exhaust ports did they monitor?
4 and 8
When and why did they switch to different ports?
They switched to ports 3 and 7 in 1990 due to temperature variations of 4 and 8 falsely activating the system (3 and 7 were thought to fluctuate less in temp).
Later,
Tom
89GT
82 track car
In 1989
What exhaust ports did they monitor?
4 and 8
When and why did they switch to different ports?
They switched to ports 3 and 7 in 1990 due to temperature variations of 4 and 8 falsely activating the system (3 and 7 were thought to fluctuate less in temp).
Later,
Tom
89GT
82 track car