Air Intake Question
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Joined: Jun 2007
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From: FL
04' E55, 01' Harley Deuce
Air Intake Question
I was reading from a website yesterday that the difference in HP from a SL55 (496) and an E55 (469) was mostly the air intake and air filters. Any comments on whether there is more detuning on the E55 than that and if not, how do I remove the pesky $5 plastic restrictor?
Here is the text from the website:
My only modifications, which boosted the power from 469hp to approx 505hp, was to swap in the SL55 air intake snorkel and add K&N air filters. The far more expensive SL55 (using the same engine) was rated at 493hp and Mercedes claimed that a more restrictive exhaust system cut the power in the E55 but the true story was that the decrease in power was due to a $5 plastic restrictor in the intake system which took less than 10 minutes to swap out. The K&N filters provided about 12hp too.
http://www.derekspratt.com/HTML/Auto...cedes_E55.html
Thanks,
mbmaxx
04' E55
01' Harley Deuce
Here is the text from the website:
My only modifications, which boosted the power from 469hp to approx 505hp, was to swap in the SL55 air intake snorkel and add K&N air filters. The far more expensive SL55 (using the same engine) was rated at 493hp and Mercedes claimed that a more restrictive exhaust system cut the power in the E55 but the true story was that the decrease in power was due to a $5 plastic restrictor in the intake system which took less than 10 minutes to swap out. The K&N filters provided about 12hp too.
http://www.derekspratt.com/HTML/Auto...cedes_E55.html
Thanks,
mbmaxx
04' E55
01' Harley Deuce
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From: Salt Lake City (but not Morm)
2003 E55 & 2014 GL550
Just my humble, but I think Benz published the numbers lower on purpose.
We have lots of dynos with the stock guys pulling a tick over 400whp average. Even with 19% loss which is a bit high that is close to 500hp.
https://mbworld.org/forums/showpost.php?p=1960189&postcount=9
We have lots of dynos with the stock guys pulling a tick over 400whp average. Even with 19% loss which is a bit high that is close to 500hp.
https://mbworld.org/forums/showpost.php?p=1960189&postcount=9
Member
Joined: Apr 2008
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From: Daytona Beach
2004 E55 AMG
The fact is, the intake of the E55 IS more restrictive than the SL 55. I estimate by about 50% in the driver's side snorkel. The SL55 does not have this. Get the driver's side SL 55 snorkel for the E and it could do nothing but help.
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From: Jacksonville, Florida
2006 E55 AMG --old cars -- E39 M5, 2.7tt Audi S4, E36 M3 **Ducati 996, 748
I am also confused about this -- I just broke off those stupid plasitc flaps just behind the grill. I saw no point in having them there, did not look very helpful in collectig cool air.
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E63 P30, CL500 Sport
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The driver side air tube from the S55 is preferred over the SL55 airtubes, which are actually longer than is needed. The primary advantage of the S55 tube is the elimination of the severe constriction in the E55 driver side air tube, but as Jangy mentioned, and as has been posted and discussed ad nauseum in prior posts on this topic, there still the issue of the smaller air pass-through opening at the driver's side of the radiator.
Since no one as ever been able to post any proof that the engine becomes starved for air or produces less power as a result of this slightly smaller opening, I view both the hole size and protective flaps as a non-issue. Just do the S55 driver side tube, and you're good to go.
Since no one as ever been able to post any proof that the engine becomes starved for air or produces less power as a result of this slightly smaller opening, I view both the hole size and protective flaps as a non-issue. Just do the S55 driver side tube, and you're good to go.
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From: Lafayette, IN
2008 ML63 2009 SL63 2010 Alpha 7 GTR
The driver side air tube from the S55 is preferred over the SL55 airtubes, which are actually longer than is needed. The primary advantage of the S55 tube is the elimination of the severe constriction in the E55 driver side air tube, but as Jangy mentioned, and as has been posted and discussed ad nauseum in prior posts on this topic, there still the issue of the smaller air pass-through opening at the driver's side of the radiator.
Since no one as ever been able to post any proof that the engine becomes starved for air or produces less power as a result of this slightly smaller opening, I view both the hole size and protective flaps as a non-issue. Just do the S55 driver side tube, and you're good to go.
Since no one as ever been able to post any proof that the engine becomes starved for air or produces less power as a result of this slightly smaller opening, I view both the hole size and protective flaps as a non-issue. Just do the S55 driver side tube, and you're good to go.
