Anyone run a Ram 3500 with 6.4 Hemi?

ib516 wrote:

ShinerBock wrote:

IdaD wrote:

Dcarner wrote:
No opposed to a diesel, I have a 2012 f250 psd now. I was just contemplating a big fifth wheel vs large tt and didn't want to shell out 10k + for a diesel if the 6.4 could do the trick. I could sell my truck and buy a new 6.4 for about the same money.

Real world a cummins is about $6k more than a 6.4, if that. And you get at least be that back on resale, not to mention better mileage. I only drove a 6.4 unloaded and it was nice, but it isn't a cummins. At that weight is think hard about a diesel. Just my 2 cents.

X2. Especially if you live around any hills OP! There are a few 6.4L owners here that are a little overly optimistic on what they say that engine can do.

Although to be honest I don't think it is the 6.4L and has more to do with the transmission. The gear ratios in that 66RFE are fine for a diesel since it was modeled after the 68RFE, but Ram should have made each gear a lot shorter for the 66RFE mated to the 6.4L. If you look at the competitors trucks like the Ford 6.2L with the 6R140 and the 6L90 on the GM with a 6.0L, they actually put more torque to the ground in almost every gear due to the torque multiplication of the transmission.

I'm assuming you are referring to me as the "optimistic owner" :)

I agree that the other trannys (Ford) have better ratios for the gas engines, especially 2nd gear. However, it seems the numbers from actual tests share my optimism :W -- the Ram/6.4L Hemi still outperforms - other than the high altitude towing one where the software limits performance. It clearly makes more power as the specs say it does.