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W201 Compression figures
Topic Started: Tue Mar 17, 2009 9:35 pm (12,774 Views)
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The Gorilla
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Hi,

Johnboy Mac- Small correction if I may.

The vast majority of Euro 2.3 16v's were 9.7.1.

The 2.3 16v with the 10.5.1 compression Ratio is
for the 'ICE' Engine only, which is quite rare and mostly
found on pre 1986, ie] earlier cars.

http://www.w201-16v.de/w201/viewtopic.php?t=1552

These engines had about 10 BHP more and run
slightly higher compression pistons and forged
rods.

Hope the link helps.

Regards,

The Gorilla.

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Johnboy Mac
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The Gorilla
Mon Sep 13, 2010 11:28 am
Hi,

Johnboy Mac- Small correction if I may.

The vast majority of Euro 2.3 16v's were 9.7.1.

The 2.3 16v with the 10.5.1 compression Ratio is
for the 'ICE' Engine only, which is quite rare and mostly
found on pre 1986, ie] earlier cars.

http://www.w201-16v.de/w201/viewtopic.php?t=1552

These engines had about 10 BHP more and run
slightly higher compression pistons and forged
rods.

Hope the link helps.

Regards,

The Gorilla.



The hairy one, how it's going? Interesting point re: 2.3-16, the figures I quoted came from my official Mercedes-Benz European technical manual and no reference to the lower 9.7:1 compression ratio at all, maybe bar (I don't have the manual at hand) a NA market vehicle.


Edit: I was always under the impression that the 2.3-16 produced it max torque at 1000rpm lower that the 2.5-16 due to the higher compression of 10.5:1 versa's the 9.7:1 of the 2.5?







Edited by Johnboy Mac, Mon Sep 13, 2010 12:42 pm.
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this_car_drives_like_no_other
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I have done a compression test on mine.

Came out like this
Cyl
1. 150
2. 145
3. 155
4. 160

M102.962 2.0 petrol 87kW (1985)
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1morebenz
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For those who need to know:

Compression ratio on the 2.3 8v from North America.

Bore - 95.5
Stroke - 80.25
Displacement - 2299
Compression Ratio - 8.0:1
Edited by 1morebenz, Fri Mar 9, 2018 10:01 pm.
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