Interesting engine weights???? GUESS
08-24-2009, 05:49 AM
#16
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08-24-2009, 02:02 PM
#17
Nordschleife Master
Ryan
Saying the 928 engine is not a racing engine or even remotely close to it is a bit of a stretch...just ask all of the guys who drove REAL factory racing porsches this weekend at Laguna seca what they think of the 928 V8....as compared to their "real" racing Porsche engines? They had plenty of time to watch the 928's roar off in the distance to think about it....since Anderson won both races and Joe Fan got 2nd and 4th.....
However I am all for reducing weight over the front axle.....if the accesories are a legit 100lbs off the front end, since you have to keep an alternator....Anderson does run electric power steering mounted in the middle of the car??? better to have that weight further back!!
Saying the 928 engine is not a racing engine or even remotely close to it is a bit of a stretch...just ask all of the guys who drove REAL factory racing porsches this weekend at Laguna seca what they think of the 928 V8....as compared to their "real" racing Porsche engines? They had plenty of time to watch the 928's roar off in the distance to think about it....since Anderson won both races and Joe Fan got 2nd and 4th.....
However I am all for reducing weight over the front axle.....if the accesories are a legit 100lbs off the front end, since you have to keep an alternator....Anderson does run electric power steering mounted in the middle of the car??? better to have that weight further back!!
I was very specific in how i phrased that because i know Mark Anderson has raced that car for so long.
I said i would NEVER put that M28 engine in a purpose built racecar (this excludes a 928 racing in whatever series hey race in)
The engine is HUGE, its too heavy, its too tall, its too wide its just too big for racing duty. If your racing a 928, yes obviously you would use the engine because you would have to and it makes a great powerplant. But if someone were asking what kind of engine to put into the back of their mid engine tube framed whatever they built, i would not suggest an M28 for the reasons i stated above.
08-24-2009, 02:11 PM
#18
Brian,
I was very specific in how i phrased that because i know Mark Anderson has raced that car for so long.
I said i would NEVER put that M28 engine in a purpose built racecar (this excludes a 928 racing in whatever series hey race in)
The engine is HUGE, its too heavy, its too tall, its too wide its just too big for racing duty. If your racing a 928, yes obviously you would use the engine because you would have to and it makes a great powerplant. But if someone were asking what kind of engine to put into the back of their mid engine tube framed whatever they built, i would not suggest an M28 for the reasons i stated above.
I was very specific in how i phrased that because i know Mark Anderson has raced that car for so long.
I said i would NEVER put that M28 engine in a purpose built racecar (this excludes a 928 racing in whatever series hey race in)
The engine is HUGE, its too heavy, its too tall, its too wide its just too big for racing duty. If your racing a 928, yes obviously you would use the engine because you would have to and it makes a great powerplant. But if someone were asking what kind of engine to put into the back of their mid engine tube framed whatever they built, i would not suggest an M28 for the reasons i stated above.
08-24-2009, 02:14 PM
#20
I think you need to re-weigh both motors again and make sure neither have fluids (or both have full fluids) and the exact same accessories including headers/alt/power steering pumps etc..
BTW..The power steering pump from my 82 track car (original with the car) was a nice light aluminum one...traded with Ken O for one from one of his 79's...it was cast iron and had to weigh 20 lbs LOL....
BTW..The power steering pump from my 82 track car (original with the car) was a nice light aluminum one...traded with Ken O for one from one of his 79's...it was cast iron and had to weigh 20 lbs LOL....
08-24-2009, 02:39 PM
#21
Drifting
this does show that you could likely take 100lbs off the front of the car by replacing the alternator with a more modern delco, you could likely do the same with a newer more compact AC compressor. The twin disc with rogers aluminum flywheel would take off another 20lbs, eliminate the smog pump and its plumbing, replace the cast exhaust manifold with some headers and remove the cat for an X-pipe and you probably have 100lbs right there off the front axle on things that most people replace anyway when the start modding the car.
hmmmmmm i think im onto something here
hmmmmmm i think im onto something here
Yes, and an iron block Ford 302 is smaller and lighter than that still.
08-24-2009, 02:58 PM
#22
Nordschleife Master
There's 924 race car in Sweden or Norway with 928 engine in it.
08-24-2009, 03:09 PM
#24
Nordschleife Master
08-24-2009, 03:29 PM
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08-24-2009, 08:39 PM
#28
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08-24-2009, 08:58 PM
#29
Race Director
Thread Starter
Yes 928-944 engines are essentially a big block bore spacing with a small block deck height.....we can only dream of the super long stroke mega displacement a 10"+ deck would give....
I heard somewhere that a bare block with nothing in it is around 75lbs.....I moved one with the girdle attached a few weeks ago and it sure felt heavier than that...but maybe I'm just a sissy :>)
The 16V engine DID have oil and probably some coolant in it....I assure you the 32V motor is absolutely bone dry....since it was recently apart and cleaned......no a drop of oil or coolant or even an oil filter-cooling lines-nothing....the waterpump and oil pump are on there though
I heard somewhere that a bare block with nothing in it is around 75lbs.....I moved one with the girdle attached a few weeks ago and it sure felt heavier than that...but maybe I'm just a sissy :>)
The 16V engine DID have oil and probably some coolant in it....I assure you the 32V motor is absolutely bone dry....since it was recently apart and cleaned......no a drop of oil or coolant or even an oil filter-cooling lines-nothing....the waterpump and oil pump are on there though
08-24-2009, 09:41 PM
#30
Rennlist Member
According to the little spec books
Models Dimensions Tolerances book for:
928 81, 82 Models
928 S 80, 81, 82, 83, 84 Models
Engine weight (dry)
Pg. 14 '81-'82 M28.09/10/15/16 245kg
Pg. 17 '80-'83 M28.11/12/19/20 261kg
Pg. 17 '84 M28.21/22/19/20 261kg
Technical Specifications book for:
928 S Models 85, 86
928 S4 Models 87, 88, 89
Engine weight (dry)
Pp. 16 & 17
85/86
928 S
M28.21/22 261kg
M28.43/44 264kg
86-89
928 S M28.45/46 264kg
928 S4 M28.41/42 264kg
928GT M28.47 264kg
928 81, 82 Models
928 S 80, 81, 82, 83, 84 Models
Engine weight (dry)
Pg. 14 '81-'82 M28.09/10/15/16 245kg
Pg. 17 '80-'83 M28.11/12/19/20 261kg
Pg. 17 '84 M28.21/22/19/20 261kg
Technical Specifications book for:
928 S Models 85, 86
928 S4 Models 87, 88, 89
Engine weight (dry)
Pp. 16 & 17
85/86
928 S
M28.21/22 261kg
M28.43/44 264kg
86-89
928 S M28.45/46 264kg
928 S4 M28.41/42 264kg
928GT M28.47 264kg