Another Newbie question

Whats or where is the difference between the cummins 12V with 185 hp and 230 hp?

thanks guys

 

I believe its just the Pump..

 

thought they both have the P7100?

Could it be that its because the 190hp version came with the AT545 transmission and the 230hp version with the MT643 trans?

 

The difference is 45 horsepower







The pumps were all P pumps but the autos got a slightly detuned version. I think the only difference was the delivery valves but I can't remember for sure. They may have had a slightly different plate between the two also.

 

[QUOTE=Johnny Cetane;297378]The difference is 45 horsepower

you got it!

well concerning the detuned version, Ive got an automatic MT 643 and its got 230hp

 

I am confused here - the most stock hp Ive seen from a 12V is 215 hp from a 96-98 standard shift truck.

What years are these trucks you are talking about?

Are you talking about factory installed pickup applications, or are they other medium duty Cummins engines?

 

I am talking about a BlueBird bus. In the original production order form theyve had an 12V 5.9 TA 190HP with AT545 trans as standard.
The ordered one was a 12V 5.9 230 HP with an MT643 auto trans...
The pickup date was the 28 of August 1998.
The title about the bus says its build in 99. So I guess it was one of the last 12V.
How much hp has an 24 V standard version?

 

i know on the 3/4 tons and 1 tons the pump had a couple differences, i know the dv were diffrent and i think the plungers were different sizes, and also had different injectors too

 

basically just the dv's and the injectors changed

 

their are many variables, but in the end its all basically the same chit, different pile.

Their may be a few differences in the pump (cam,DV's,calibration, timing), it may have slightly larger injectors


Your talking about a bus engine so forget the whole 98.5 switch to 24v, the 12v was still avaliable long after dodge switched, we were still buying new 12v's up until a few years back. As for the 'standard version' HP, their is no standard version, cummins builds the engines to whatever spec is required, they can be bought 'off the shelf' in various power levels or calibrated to whatever suits the needs of whoever needs them.


Then if you look at a marine engine they are the same bird, with different pistons/injectors (different spray pattern), and also rear geartrain and counterotating in some applications.