The C55 is a nice car. Very refined and in my opinion prettier than the newer C63. But for ~$535 in mods, I picked up a C3P sc pulley and intake. These were both lightly used and in near new condition. New they may have cost closer to $850 with shipping and all. Those two mods which took all of about an hour to install boosted the crank hp to about 392 and RWHP to 334. An ECU tune is expected to net another 20-30 hp. Even without the tune, the C32 is a very quick little beastie and I would not heasitate to run with a stock C55.
Pre mods my C32 ran bone stock a 13.54 sec ET @ 103 mph and 0-60 of 4.8-5.1 depending on launch traction.
No Mod bone stock C55 ran 13.31 sec ET @ 105 mph and 0-60 of ?
Those are real cars with normal non-hero drivers.
In Motor Trend test when both cars were brand new;
C55 amg did 0-60 in 4.9sec and 1/4 mile in
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C32 amg did 0-60 in 4.7sec and 1/4 mile in
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The mods in my C32 dropped the 0-60 times to 4.55 sec. I've not done the 1/4 with it again yet but considering that it hit 60mph 3/10's quicker, I'm not going to be surprised at all if it busts the qtr about 5/10's quicker which would put it in the 13.000 bracket @ ~110mph. It don't sound like much but its enough to walk on a C55 unless he has his NOS wired tight.
There is so little that can be done to the 55 to affordably boost the power that it gets eclipsed in short order. I looked at a sweet local, low milage C55 before I got the C32 and choose the C32 because it was lighter and I liked the tuning potential of the SC'ed six. I have not been disappointed. It is way cool to smoke a "Faster" car with a V8 in it and then show em the V6 badge. One guy asked me what the "Kompressor" meant? I told him that it was German for "Blows doors off".
Irish