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  #1  
Old 09-05-2002, 02:38 PM
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Join Date: Aug 2002
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High RPMS

Hey everyone i have a1979 280se with the 2.8 inline 6 and was wondering about something. At around 80mph the tach shows me at 4000 rpm is that right? Most cars at that speed are at atleast 2500 rpms.
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  #2  
Old 09-05-2002, 03:16 PM
it leaks, its german
 
Join Date: Mar 2002
Location: raleigh nc
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Giime a few days to finish sorting out the project (77 280se, showed up with no engine in it and it's sat for 5 years) and when I test drive it, I'll see whats its at doing 60.


Joe
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  #3  
Old 09-05-2002, 03:54 PM
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Join Date: Aug 1999
Location: Florida / N.H.
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I think they had ratios up in the high 3's.... like 3:92 s or :78's..
so don't expect low cruisin' RPMs.
The ratio is stamped in the lower , right casing on the diff. ... might want to take a peak there for exact specs.
Also, check that someone did not go w/low profile tires, as this makes it worse
The Euro "R" tires on the older Benzs were 80 profile, which is much taller than standard US specs.....
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  #4  
Old 09-05-2002, 04:02 PM
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Join Date: Aug 2002
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What is gas mileage like for this car? Also, with a high gear ratio, doesn't that mean it should take off from a start alot quicker? It sucks at around 20 mph but when it hits 40 I'm gone. I think I'm running on 5 cylinders to cause my spark plugs don't look like they are working right.
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