Detuning 302HP to 250HP
Thread Starter
Senior Member
Joined: May 2008
Posts: 325
Likes: 18
From: Canada
W213, C238
Detuning 302HP to 250HP
How would the same 3.5 liter 302HP engine in the E350/C350 be detuned to 250HP in the E300/C300?
I'm sure many of our more technically minded forum members would know.
I'm sure many of our more technically minded forum members would know.
Member
Joined: Jul 2012
Posts: 165
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2010 E350
BMW's e46 323 is a 2.5l engine with different cams and software. They do the same thing with their motorcycles, an F650GS is still 800cc's just detuned.
Senior Member
Joined: Apr 2011
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From: Long Island, NY
2012 C63 AMG edition 1
I thought the newer 3.5's were 60 degree V6's instead of the older 3.5s and its also direct injected, unlike the older one. But isnt the C300 a 3.0 liter V6? Where the 350's are 3.5's? The two engines are different sizes so I dont know how you would de-tune one to match the other.
Thread Starter
Senior Member
Joined: May 2008
Posts: 325
Likes: 18
From: Canada
W213, C238
Thanks Norcal. What would you expect the differing engine characteristics to be? Detuned quieter and smoother? Obviously power is lower, but fuel economy is very similar.
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From: Central Pennsylvania
2012 S350 Bluetec 4Matic, Diamond White, P2
I thought the newer 3.5's were 60 degree V6's instead of the older 3.5s and its also direct injected, unlike the older one. But isnt the C300 a 3.0 liter V6? Where the 350's are 3.5's? The two engines are different sizes so I dont know how you would de-tune one to match the other.
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From: Maryland
2012 E350W4
Agreed! I.e., how do you put a biturbo 5.5L into the E and still designate it as an "E63"?!! It's an E55 @ best! 
They're just confusing everyone now! 
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2017 W205 C43 AMG
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W212 FL
The point is what MB names in their cars they can perform it . So, they keep labelling new twin turbo 5.5 liter engine as E63 but it can still perfrom as well as the old replaced engine which was 6.2
I think they could be a deragatory effect for upcoming owners considering former W212s are coded E63 but new models are E55
. I could think wtf lol 
lol
I have spot that gasoline engine is 3.5 liter and MB uses E350 modelling name and that's correct but diesel engines you expect E300 because of 3.0 liter but when I compare either engines performance figures the diesel 3.0 liter engine is no less sluggish than it's 3.5 liter gasolione powered engine . So, in this case I don't think it's wrong that either gasoline and diesel cars model names are 350 .
I think they could be a deragatory effect for upcoming owners considering former W212s are coded E63 but new models are E55
. I could think wtf lol lolI have spot that gasoline engine is 3.5 liter and MB uses E350 modelling name and that's correct but diesel engines you expect E300 because of 3.0 liter but when I compare either engines performance figures the diesel 3.0 liter engine is no less sluggish than it's 3.5 liter gasolione powered engine . So, in this case I don't think it's wrong that either gasoline and diesel cars model names are 350 .
