I have a 2003 Dodge ram Quad cab with the 5.7L Hemi. I run a vortex exhaust with the air induction. I had the truck out on an open road and finally decided to she what she had. To my suprise it was 115 mph. I dont plan on going that fast again anytime soon but I was wondering if it could go higher.
I just purchased the superchip programmer # 3714 and should have it any day now. Will this allow the truck to go faster. Later,D

 

If you want to die young, then yes.

 

I saw Dakotas go 120mph. You should be able to go faster. Go for a bigger tires, then you definitely go faster (takes you longer to get to the speed though).

 

It only goes 115 because it is governed from the factory. Superchips will allow you to ajust the speed limiter to 140 mph. BUT, it is not worth going that fast in a 5500 lb truck. Secondly, if you dont' have the right tires, they'll blow at high speeds like that.

 

With an aerodynamic Cd=0.528 and a frontal area of 35 square feet
a third gen Ram needs a vast amount of horsepower to go fast.

Why would Chrysler
which produced the sleek Intrepid & Sebring
and introduced the first mass produced aerodynamic car - the Chrysler Airflow in 1930s
produce a pickup shaped like a brick?

Because it sells trucks and makes big profits.....

Dodge modelled it s 1994 Ram after the aerodynamic Kenworth T300 18 wheel truck.
aero Cd=0.42 and frontal area = 34 sq ft
It sold much better than the 1993 Ram.

Ford tried to copy this with the 1997 F150 with the 'melted brick' shape.
Customers complained this F150 'looked like a sissy'
F150 Cd = 0.45

Ford responded with the SuperDuty body style
which looked a lot like the 2nd Gen Dodge
but was blunter - more like a Peterbuilt than a Kenworth.
Cd=0.57
The SuperDuty sold well and took back some 'market share' from Dodge
{Ram transmission problems influenced this too}

In the auto business where trucks generate the most profit per vehicle
it is not about selling good design trucks,
it is about selling any design truck that sells good!

So DCX studied the sales numbers
asked focus groups
"would you trade in your existing truck for this one?"
and designed the 3rd Gen Ram to be much blunter like a Peterbuilt or SuperDuty.

Pickups are designed about 5-7 years before they hit the dealership lots.
When the 2nd gen Ram was designed in 1987 it seemed that gas prices mattered.

When the 3rd Gen Ram was designed in 1995
and gasoline was selling for $1.20 per gallon around most of the USA
it didn't seem that aerodynamics of a pickup would make much difference to sales
it was 'macho looks' and Torque that sold trucks off the dealership lots.

The blunt 3rd Gen Ram
which can't go to as high a top speed as a minivan
even with 330 hp (not the previously advertised 345)
is the result of decisions and attitudes that were around back in the middle 1990's.

 

I've got my truck Hypertech'ed and I have ?-rated Nitto 404's...I can go 130mph, no problem. I don't plan on living much longer...

 

115MPH? Unless you changed the factory engine controller, you are limited to 105MPH.

 

My 04' also tops out at 115,with no mods to the factory ecm

 

Yes my Odometer said exactly 115.

 

thats where the factory ecm sets the max speed at.it was plenty fast enough for me! whooped the tar outta a Dorf 150 doin it too!