So, this summer i been a lot to local dragstrip, and somehow i just cant get under 14´s on stock car, any cheap mods that can help?

thinking about buying street/drag radials to put on my 17" Mercedes-Benz wheels to improve 60fet

p.s. what your latest times guys?

 

Cheap? It all depends on what you consider cheap. At the very least, you'll need an ECU tune and exhaust. ECU tunes are between $500-800, depending on the company you go with and exhaust will be anywhere from $400-$1500

There's a few people that are in the mid-high 13's with those mods plus some air intake stuff.

There's just not a lot more you can do to these cars that MB didn't already do.

 

Yeah, i know, thats why i was talking about "cheap" modifications like exhaust or ecu, so you dont have to spend thousand dollars on supercharger, also im not looking for some hugepower gainers, just to get into high 13´s

 

ECU/Exhaust will get you there, most likely.

 

is the track?Have you reset the trans or shifting manually?How are you staging the car?what tire pressure?
You are so close

 

i´m on 18" whit 245/45, tire pressure around 26psi, 60ft is 2.155
i have 5speed automatic, and i always put into "manual" mode but let car shift itself

i´m gone try next time have almost empty fuel tank, and go under 26psi in tires
and hope the weather will help me

 

heres a thread that may help you a little bit
https://mbworld.org/forums/showthrea...ht=performance

 

Run 17's on the rear. Drop the pressure to 26 to 28.
Remove the spare tire and jack.
remove all your "junk" from the car.
Run with 1/8 of a tank of fuel.

That alone should see you to high 13's.

Also, make sure the weather is cooler.

Drain your windshield washer fluid (8 lbs per gallon...free "effective" hp)

 

going to suggest 16's on a set of knock offs and light as possible.
Light weight pulley?Rotating mass on and in the engine is worth 20 times its weight savings as unsprung weight.So a 2lb savings on even a non underdriven oe sized pulley is like gaining 4-6 h.p.
Going to 16's or 17's will launch better than the 18's.
You will get there and the next step you will be asking how can i break into the high 12's?.

http://www.youtube.com/watch?v=TaqapJK5Efw
something to dream about

 

more air pressure in the front tires. Less rolling resistance. 45psi. if you are spinning at all with 26-28psi, get it down to 20 or so. its only hitting 110 in the traps.

got sport 2 suspension? stiffer the settings, the less weight transfer when launching.
less fuel, less water, less accessories, etc.