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W124 230TE; W124 E220
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31 Posts
Discussion Starter #1
hi!

i have a M104 280 from a 93 w202.

i was wondering what the upper revlimit is?

in nutral it cuts at 4000 revs, and at speed it cuts at 5500 revs.

is this normal? it feels like it has alot more to give but is riding the revlimiter at the top of the power curve.

the cam timing surge comes at aprox 4500 but is short lived due to this situation. it has at 2.5" freeflow exhaust if that matters..

thanks!
 

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'07 GL320CDI
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5,092 Posts
Yes the rev limit in neutral is a built-in dummy protection feature.

Some ZF auto transmissions in other vehicles were known to fail during emissions testing due to revving in neutral.
 

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Premium Member
2001 E320 - Brilliant Silver/Ash: 107,000+
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17,193 Posts
In the US at least there is a speed governor too that varies between models. When you hit 5500 RPM in the top gear you might be hitting that governor. BTW what is the red line on your tachometer and are you able to hit it in any gear?
 

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W124 230TE; W124 E220
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31 Posts
Discussion Starter #4
thanks!

the limiter kicks in at 5500 rpm in any gear!

i can acsellerate up to 200 km/h and hitt the limiter, thou i can maintain speed at aprox 60% throttle.

the tach has the redline at 6200 rpm but its not the original to the engine.
it came from at totaled c280t.

btw the rear end has a 1:3.07 ratio. trany has a 1:1 ratio in 4.th
 

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Registered
W124 230TE; W124 E220
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31 Posts
Discussion Starter #5
Bump!

does the ECU need to be re-coded after crah?
have read somwhere that these units (ECU, ABS, SRS, and so on) needs recoding to work proparly.

is this infact so?
 
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