i'm thinking of adding headers and getting a new cam...not the biggest, but still needs to give me go/tow power. will a new cam do much to my mileage under normal driving-70mph on interstate? i'm guessing it'll suck more fuel with stop-and-go and WOT, but i don't really care about that....just want to know about everyday driving.
thanks for any input

 

The new cam is not compatable with the hemi. I forget where Pappy found the info but if memory serves it was from Dodge itself and it said the cam would damage the engine. That is if you're talking the 6.1 cam.

 

the 6.1 cam will damage the engine?? what about like comp cams or something else?

 

That's kinda weird considering there are guys out there that have 100,000 miles on their 6.1 cam.

The only reason there was a message to that affect from Dodge was because there were quite a few dealers swapping them out for customers and they needed a way to stop it.

The 6.1 cam will not damage the engine.

 

I am running the Comp Cams 268. I just took a short 200 mile trip in my truck. I filled up and reset the mileage computor, I got 19.7 mpg average throughout the trip. Yes I reset the trip comp at the pump instead of cheating and doing it at highway speeds. When I reset at the pump I find that my trip comp is pretty close.

 

[blockquote]quote:

ORIGINAL: motorider228

Johndcjr1989, the 6.1 cam does not work with the mds motor. There is a company that has mds ground cams but I can not think of the company right now.

[/blockquote]


I thought the 6.1L would work but......
After doing alot of research I found this tid bit of info about the 6.1L Cam, looks like its bad news forALL 5.7 Hemi's

You may get customers wanting a 6.1 HEMI cam installed into a 5.7 HEMI, or simply wanting to purchase the parts:

Be advised that customers/dealers seeking some extra horsepower from a 5.7L should not attempt to install a 6.1 camshaft in a 5.7L. Unlike engines from 30 years ago, this parts swapping approach no longer works and can result in severe engine damage. The 5.7L valvetrain cannot handle the lift/duration of the 6.1L cam and will likely fail from the additional stress. Also be aware that these swaps would cause the vehicle to be out of emissions compliance and could subject your Dealer to a substantial fine if the swap is performed in your shop.

There are alot of MDS cams out now, I just hope they get some better MDS friendlylifters to compliment the cams.

That was the post... Hell for all I know that could have been fabricated by someone.
I'd still prolly go with an aftermarket cam, but thats just me.

 

Also sorry that we are off topic a bit as sa1765 has a 2004.

 

If that is true then it would not be able to handle the lift/duration of any aftermarket cam as they are all more than the stock 5.7L cam.

 

I'm NOT disagreeing with you.

Did you wake up on the wrong side of the bed today?

 

Yeah