What's the power output of 3.0l cr4 engine in sumo? Isn't it 90 ps.
It's somewhere around 84-85 bhp I guess that also at about 3000 rpm or near redline.
Isn't this the same engine that the old 3.0l safari used which churns out 115 bhp?
Hmm, yes and no.
The engine block can be said same but not the engine. The block is exactly same in-line 4 cylinder 2956 cc with bore and stroke measuring 97mm X 100mm.
But what makes difference is the way they are turbocharged, the N/A zone is nearly same but still, nothing is same overall in both the engines. There is a lot of difference in the tuning.
Why Tata uses a 3.0l motor to produce this much reduced power?
Cost factor my buddy, 115-120 bhp means a lot more changes in the chassis and suspension setup to tame the 115 horses. Also for the purpose the vehicle is built, I don't find any reason to give 100+ horses under its hood.
Rest, the 3.0 motor has enough capability to produce even 200+ bhp.
3.0l engine adds enormous weight to the sumo whereas a de-tuned 2.2l dicor unit will reduce the substantial weight which itself improves overall dynamics and FE.
With the disadvantage of weight, this engines gives the Sumo some advantages too. For the people mover like Sumo, giving a detuned 2.2l Dicor can prove to be painfully underpowered in the N/A zone or lower revs. Though a lighter engine will give it agility and help improving dynamics but it will make the driving a painful affair, and if one adds a good VGT then again the costs will go on the higher side.