Originally Posted by
mobilefitt
So I have hit the ceiling. Eurocharged, Intake, TB, Exhaust. I hate my sprint booster as it makes the car almost impossible to drive. Just a little more punch and I think I'd be happy with the car. Has anyone come up with a way to add 10-20 more HP.
.
It won't give you any more H.P. but finding a better gear will make it "feel" like it's got more HP.
Biggest hurdle to over come is finding a Mercedes differential with a lower gear ratio that fits, and getting the car's computer to learn to play nice with it.
Have you ever taken your car to the drags? It would be interesting to hear how much of an improvement all the mods that you've already made have lowered your ET's.
Best "Magazine" Road Test time for a "stock" 6 sp."Coupe" was 14.7 sec. Being a roadster, it might be just a little slower due to additional weight and being less aerodynamic.
Some people have tried larger injectors, but I'm unfamiliar with the results.
Installing a pair of 225/50/16" rear tires will cut 3/10's of sec. off a "stock" 3.2 V6 in the quarter mile. Improving your acceleration by 3/10's should feel like an extra 20 HP. Just find a 2003 SLK320 in a salvage yard and buy the wheels.
Good Luck