Re: Any Dodge Cummins heads around ?
 

[QUOTE=
under heavy accel at top of rpm drops to almost 5-6 (good or not ?) and as far as the condition i explained to them...tech couldnt verify customers complaint.[/QUOTE]
NOT GOOD

Re: Any Dodge Cummins heads around ?
 

Speed sensor

Re: Any Dodge Cummins heads around ?
 

anybody know what the minimum fuel pressure should be ?

Re: Any Dodge Cummins heads around ?
 

5 to 7 PSI at wot is fine. Should have 14-15 at idle. If your max egt is 650 then I'm guessing your probe isn't in the exaust manifold. Watch out, that is a false reading. You should add about 350 for pre turbo readings. I suggest you drill and tap your manifold and put your sensor there. Buy a fuel pressure gauge and check it every oil change or put one in the cab. Lift pumps are $160 from Cummins and can be changed in about 20 min with a little practice. I always carry a spare.

Have fun,
Cat Skinner

Re: Any Dodge Cummins heads around ?
 

i have pyro, boost, and fuel pressure guages in the cab. cold air intake and a 4 inch exhaust from the turbo back...max boost at wot is 28, the hottest it gets is 650, and at wot fuel psi drops to 5-6...at idle its about 12-13..i'll have to look and see where they installed the probe

Re: Any Dodge Cummins heads around ?
 

How much did your performance change Bern when you changed out the exhaust to the 4"?

Re: Any Dodge Cummins heads around ?
 

it is noticeable better throttle response, turbo spools up quicker and sounds awesome...

Re: Any Dodge Cummins heads around ?
 

I have 4" exhuast also I got better MPG and the turbo spooled up much faster. It added about 30hp according to dyno sheet.

My pyro runs about 530- 640 under normal running when I turn the fuel up to 63% over stock if will reach 1150+ for a second then the box defuels till it's under 1100.

Re: Any Dodge Cummins heads around ?
 

http://mysite.verizon.net/bunkyman/RamSmoke1.mpg

2001 Ram Video with 4" Magna flow exhuast and blue chip box.

Re: Any Dodge Cummins heads around ?
 

Really? Did the dyno operator sell the exaust to you?
CS