When was the first Cummins Big Cam engine made?
When was the first Cummins Big Cam engine made?
Big Cam I. The first Big Cam I engines were introduced in 1976. Cummins aimed to meet new US government legislation at that time regarding noise levels and clean air requirements.
How much horsepower does a Cummins n855 Big Cam have?
Cummins N855 Big Cam Power and torque. Power (normal range) 250-400 hp, 186-298 kW @ 2100 rpm. Power (some later standby gensets) rated at 600 hp, 450 kW. Torque (400 hp engine) 1150 lb.ft, 1559 Nm @ 1500 rpm.
Why was the 855 engine called the Big Cam?
So to tell the older 855 from the newer block, they called the new block the “Big Cam” as that was the main differance between it in the older “small cam” engine. Each time they made a design change to the “big cam” it got a new number.
Is the big cam 4 a good engine?
The Big Cam 4 and NT88 are both mechanical and are good engines esp if you don’t try and get much more then 400 hp… The Big Cam 4 has the screwy low-flow cooling system, and while it does work, it doesn’t handle high hp very well.
Big Cam I. The first Big Cam I engines were introduced in 1976. Cummins aimed to meet new US government legislation at that time regarding noise levels and clean air requirements.
So to tell the older 855 from the newer block, they called the new block the “Big Cam” as that was the main differance between it in the older “small cam” engine. Each time they made a design change to the “big cam” it got a new number.
The Big Cam 4 and NT88 are both mechanical and are good engines esp if you don’t try and get much more then 400 hp… The Big Cam 4 has the screwy low-flow cooling system, and while it does work, it doesn’t handle high hp very well.
How big is the cam on a Cummins truck?
Cummins truck block went thru many changes. It had small bores then was bored out to 855 CID… They were haveing trouble with cam lobes wearing, and incressed the size of the cam allowing for longer “ramp” times on the lobes .
