W211 AMG Discuss the W211 AMG's such as the E55 and the E63

throttle body question?

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Old Oct 13, 2005 | 02:21 AM
  #1  
BMWEATR's Avatar
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From: strip bar in Oregon
211 E55(sold) & 80cc shifter kart
Exclamation throttle body question?

has anyone upgraded there throttle body's?
whats the stock bore # on our throtle body's?
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Old Oct 13, 2005 | 10:45 AM
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Jakpro1's Avatar
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From: Salt Lake City (but not Morm)
2003 E55 & 2014 GL550
Man, I too have been searching for mods that would give me some nice gains.
No specs for ya, but all I keep hearing is the usual "15 hp" gains, but this mod is especially $$$ as you gotta rip blower off to get at throttle body.

Big pain = big $$$ per Cory at Klee.

I guess I could piece together another 45 hp..... get Stage 3 cam for 5K....then throttle body mod for 5+K, then full exhaust, but man... 50 hp for 15K. Just can't do it.

Lemme know if you go with it.....curious to see if it's all that.
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Old Oct 13, 2005 | 11:29 AM
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From: strip bar in Oregon
211 E55(sold) & 80cc shifter kart
crap you gotta rip blower off? that sucks, i don't think you need to spend $5000 i think you can just send it to a race machine shop and have them bore it out! i think renntechs are just bored out stock ones. 78mm i think but would call to confirm, I think you can bore out up to 4mm over stock and be ok.
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Old Oct 13, 2005 | 06:21 PM
  #4  
Vadim @ evosport's Avatar
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C32 AMG
Stock TB is 74 mm, safely one can get to around 77.5mm = 78 mm.

Is it worth a lot of power? Do not know, but fill find out shortly.
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Old Oct 13, 2005 | 09:22 PM
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well of my experince alot of mod companys just uses v12biturbo throttle body. i think its better because its a orignal part.
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Old Oct 13, 2005 | 09:46 PM
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Originally Posted by malhurr
well of my experince alot of mod companys just uses v12biturbo throttle body. i think its better because its a orignal part.

Kleemann's throttle body mod uses the V12biturbo body. My understanding from the Kleemann boys it is a very hard part to get since you need the VIN from a V12biturbo for MB to order it. That part alone is about $1K.
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