e55joe

What does everyone prefer and any difference in power gain or loss

hachiroku

bigger is better for power, but going larger in piping generally adds to noise. 3 inch should be choice for power out of the two. with the E55, the engine is much quieter than the E63 so going to a 3 inch shouldn't be a huge issue.

C32owner

Can't speak for other diameters, mine was fitted with 3.46 inch.. No droning whatsoever, like a stock car when cruising light footed. Put the pedal to the metal, and people suffer whiplash turning to see what's coming for them... Haha. The best.

Speedriven1

We do 3" on everything, so ... ??

e55joe

Well if your talking turbo im in at 5" lol..
But idealy on an E55 2.5" is good but since i have upgrades and plan on making more power im going 3"

211.070

The factory tubing diameter is mostly 2.75" od. Going to 2.5" would not be a good idea.

Max.H

Ya bad idea. 3" is fine.

e55joe

What do u have done to your car to go 11.90's

Hammer Down

He was stock in not the best DA

e55joe

How the hell u guys running 11's stock ?
Off the show room floor stock. Is there anything u did at the track before you guys ran. Whats the trick i mean did u guys gut the car out. I def. Would like to know.
What suspension mode did u use.

typedRew

That's what a stock car should run with decent traction and properly functioning cooling system.

- Drew

e55joe

I dont know i will beleive it when i see it. So your saying when i go to the track i should have no problem dipping into the 11's with my car that has a tune, full exhaust, pully and air filters even with street tires

typedRew

These cars make buckets of torque. I don't expect anything to get into the 11s without traction.

Add drag radials to your car and the correct amount of cooling mods, I'd expect mid to low 11s @ 123-125.

And what do you mean, believe it when you see it? You asked about the dudes car who is stock with drag radials who did exactly what you aren't believing. It wasn't even in great air. I mean the cars are 10-14 years old, plenty of folks have done all of this before and there is plenty of data to look at and find yourself.

I mean, magazines when th car was new were doing low 12s @114-116 all stock and stock tires. How slow do you want it to be?

- Drew

e55joe

Oh and forgot to add intercooler and pump upgrade
And what i gathered from reading i only found these cars were doing mid to high 12's which seems logical from 450hp and being so heavy.
Now i have an sts-v which are rated around same horse power and as heavy. Those cars as i know have been 13.1 stock.

typedRew

I don't know why you want the car to be slower than it is, but it's not. They move fine as long as everything is working, it's cooled well enough and you have traction.

Here's a street tire car with basically your mods;

http://www.dragtimes.com/Mercedes-Be...lip-26186.html

Tune/pulley and drag radials here

http://www.dragtimes.com/Mercedes-Be...lip-19141.html

And here's one of the fastest stock ones on a drag radial

http://www.dragtimes.com/Mercedes-Be...lip-21574.html

A video if it helps;

- Drew