FordGuy100
Registered User
I think direct injection...and what kind of injection systems also help a lot.
One thing...common rails kick **** when it comes to starting. One thing I noticed is most cold starts with cummins on youtube they have slow cranking speeds...do they only run one battery? Common rail PSD's and duramaxs usually start like nobodys business and have fairly good cranking speed.
One thing...common rails kick **** when it comes to starting. One thing I noticed is most cold starts with cummins on youtube they have slow cranking speeds...do they only run one battery? Common rail PSD's and duramaxs usually start like nobodys business and have fairly good cranking speed.