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Turbo Back Down Pipes - Group Buy

     
Old 03-19-2017, 12:52 AM
  #26  
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CLS63 AMG
Originally Posted by Ali_E55
on dyno and tested on a catless downpipe car


added these parts showed gains of 30wtq on low to midrange RPM
and about 10whp also on low to mid range RPM,


no extra gains were on higher RPM


and noise becomes less while turbo whistles spooling becomes louder
I have to say that's a bit disappointing. Midrange hp/tq is already huge on m157, that's where the engine shines. What is it that makes it so hard to gain any more power at higher rpm after tune and catless dp on this engine?
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Old 03-19-2017, 10:50 AM
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E63
Originally Posted by Ali_E55
on dyno and tested on a catless downpipe car


added these parts showed gains of 30wtq on low to midrange RPM
and about 10whp also on low to mid range RPM,


no extra gains were on higher RPM


and noise becomes less while turbo whistles spooling becomes louder
Am I reading this right? You already had a catless downpipe and swapped for the turbo back downpipe? If so that is pretty significant.
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Old 03-19-2017, 11:28 AM
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C218 CLS63TT PP Edition1, W213 E63S
Originally Posted by Amg63-
I have to say that's a bit disappointing. Midrange hp/tq is already huge on m157, that's where the engine shines. What is it that makes it so hard to gain any more power at higher rpm after tune and catless dp on this engine?


small turbos
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Old 03-19-2017, 11:29 AM
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C218 CLS63TT PP Edition1, W213 E63S
Originally Posted by kponti
Am I reading this right? You already had a catless downpipe and swapped for the turbo back downpipe? If so that is pretty significant.


yup on a tuned catless downpipe and then installed turbo back downpipe and tested the car, tune have not been changed, it adapted by itself
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Old 03-19-2017, 01:04 PM
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CLS63 AMG
It's significant but not much more whp even in midrange.

I guess a turbo upgrade is the only way to get stronger on top end. Amg loves small turbos
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Old 03-21-2017, 10:42 PM
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2012 CL63 2015 Tesla Model S 1963 Lincoln Continental conv 1975 Pontiac Grand Prix
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