New 250 or 300HP marine DB2 pump. [Archive] - Diesel Place : Chevrolet and GMC Diesel Truck Forums

: New 250 or 300HP marine DB2 pump.


ratchevy
06-25-2004, 06:46 AM
hi any one try it ??? i have c/k 2500 6.2 with banks turbo and the injector pump is week http://www.dieselplace.com/forum/smileys/Confused.gif


sincerly peter

Texas Diesel Guy
06-25-2004, 08:07 PM
turn it up.....5/32 allen will do the trick


There is a spec for the factory banks turbo option offered I think around 91'...somewhere in there, and you could have your pump rebuilt/calibrated to that spec or to say, 4911 (6.5 turbo) specs.Edited by: Texas Diesel Guy

ratchevy
06-26-2004, 02:44 AM
http://www.dieselplace.com/forum/smileys/Big Smile.gif t/y i will do so


where can i find spec on the pump http://www.dieselplace.com/forum/smileys/Cry.gif have lookt on the net canīt find any on pumps.


/ peter

Texas Diesel Guy
06-27-2004, 05:27 PM
the specs will only be available from your SD, but I dont know that he will give them to you, besides, they wont do you much good without a test bench to recalibrate the pump. just give the leaf spring a 1/4-3/8 turn and see how she runs.Edited by: Texas Diesel Guy

Kennedy
06-28-2004, 11:36 AM
The older DB2's will go from 150-200HP. The 4911 will go from 190-250HP. The marine unit will go from 250-300HP


The thing is, when you push a pump to it's max, it can lose efficiency so you are often better to turn it up a bit less, or run the next larger size pump at a more moderate setting.

ratchevy
06-28-2004, 01:25 PM
yes a know that and iīm going 2 buy a new pump who is the best for me the db2-4911 or 250 or 300HP marine DB2 pump,when a have banks turbo kit ??? they told me when i bought the car that is a marine pump and it has about 270 hp ????? nr on my pump is 4974????


/ peter

grape
06-28-2004, 01:41 PM
4974 is the stanadyne number for the marine 250 hp appliction.

ratchevy
06-29-2004, 11:28 AM
ok when i have a good pump ( 4974 = 250/300 hp ? ) going to buy a new pump 4974 http://www.dieselplace.com/forum/smileys/Big Smile.gif goning 2 up date the turbo with a biger one (garret)


T/ y all http://www.dieselplace.com/forum/smileys/Hug.gif


/peterEdited by: ratchevy