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AMS Performance · 06-28-2009, 07:37 PM

263-269 is normal for W208 CLK55 AMG Dyno dynamics, those are healthy numbers. Adjusted for 22% loss you are right at 337HP & 389TQ. So you are down 5HP stock but up 13tq. Whats the mileage on the car? Perhaps a good tuneup may help (spark plugs & wires as well as new primary O2 sensors). Do you have a copy of your air/fuel ratios? I have a feeling your ECU may be pulling timing, perhaps fouled plugs or dirty fuel system. Also what was weather like?

Try running 1 can of seafoam in the gas tank to clean up the fuel system, that should get most of the gunk out and regain those few lost HP.

Nice work, glad you chose the DD dyno, should make for some accurate dyno comparisons in the future.

06-28-2009, 07:37 PM	#2
AMS Performance SPONSOR Join Date: Sep 2008 Posts: 1,313 Drives: AMG	263-269 is normal for W208 CLK55 AMG Dyno dynamics, those are healthy numbers. Adjusted for 22% loss you are right at 337HP & 389TQ. So you are down 5HP stock but up 13tq. Whats the mileage on the car? Perhaps a good tuneup may help (spark plugs & wires as well as new primary O2 sensors). Do you have a copy of your air/fuel ratios? I have a feeling your ECU may be pulling timing, perhaps fouled plugs or dirty fuel system. Also what was weather like? Try running 1 can of seafoam in the gas tank to clean up the fuel system, that should get most of the gunk out and regain those few lost HP. Nice work, glad you chose the DD dyno, should make for some accurate dyno comparisons in the future. __________________ << E55, C55, CLK55, CL55, SL55, SLK 55, S55 Headers >> << New W202 C43 AMG Stage 2 Performance Package !! >> << New 230, 280, 350 & 550 Pulleys for M272 & M273!! >> << Gen2 C36 / C280 / E320 M104 OEM+ Pulley Design! (under $300) >> (contact via email for more details) << M119 Performance OEM+ Dampers now available! >> <<< AMS WEBSITE >>> (New Products) Last edited by AMS Performance; 06-28-2009 at 07:43 PM.