Issues with GMC 6.0 L
Just purchased along with a Crossroad Zinger 2011...new to the open road. Just wondering if I made a decent choice for a truck.
Forum Discussion
As a previous poster said, a little late now but since you asked... :)
I've owned a '98 Chevy 1500 with a 350, an '01 CC 2500HD with the 6.0L, an '01 Duramax CC, and now an '07 Duramax CC, all 4WD. When I moved from my '98 350 to the '01 6.0L, I was very disappointed. The 6.0L pulled but it wanted to rev high in the RPMs to get power. Compared to my 350, which had tons of low end grunt, pulling my long, steep mountain road, at low speeds, about stalled the 6.0L engine without me keeping it in 1st gear. I was amazed at the low fuel economy of the 6.0L. This was all with just pulling my 4K lb. boat. The truck didn't last long and I went to the diesel. Never looked back. I still think affectionately about the '98 350 - great truck with loads of low end torque but the diesel is right for my needs now. The newer tunes and 6 spd. transmissions may help highway pulls but the low end, slow pulls is what I did not like about the truck (not to mention hitting 4K RPM pulling a big hill at freeway speed with the 6.0L).
I suspect the new Vortec engines all make their peak power at the higher RPMs for a few reasons. #1 they can keep the gas mileage claims higher; and #2 they can publish higher horsepower numbers to the public. Horsepower is the relationship of torque (which is measurable) to RPM, so the higher the RPM for a given torque value, the higher the HP number. From memory the formula is Torque*RPM/5260 (not sure if I have the divisor/constant correct).
Enjoy the truck and be your own judge.
Phil
I've owned a '98 Chevy 1500 with a 350, an '01 CC 2500HD with the 6.0L, an '01 Duramax CC, and now an '07 Duramax CC, all 4WD. When I moved from my '98 350 to the '01 6.0L, I was very disappointed. The 6.0L pulled but it wanted to rev high in the RPMs to get power. Compared to my 350, which had tons of low end grunt, pulling my long, steep mountain road, at low speeds, about stalled the 6.0L engine without me keeping it in 1st gear. I was amazed at the low fuel economy of the 6.0L. This was all with just pulling my 4K lb. boat. The truck didn't last long and I went to the diesel. Never looked back. I still think affectionately about the '98 350 - great truck with loads of low end torque but the diesel is right for my needs now. The newer tunes and 6 spd. transmissions may help highway pulls but the low end, slow pulls is what I did not like about the truck (not to mention hitting 4K RPM pulling a big hill at freeway speed with the 6.0L).
I suspect the new Vortec engines all make their peak power at the higher RPMs for a few reasons. #1 they can keep the gas mileage claims higher; and #2 they can publish higher horsepower numbers to the public. Horsepower is the relationship of torque (which is measurable) to RPM, so the higher the RPM for a given torque value, the higher the HP number. From memory the formula is Torque*RPM/5260 (not sure if I have the divisor/constant correct).
Enjoy the truck and be your own judge.
Phil
