Bob U

Attached is a GM Engine Dyno comparing the LT1, LT4, and LT5 that came from a GM presentation at the Rolex event.

You can really see where the 3 engines are differences.

What do you think?

427Z0SX

Do you have a more in-focused shot? Too much blur.

Poor-sha

Holy moly. Check out how the power curve takes off at 3500 RPM relative to the LT4. That and 600lb/ft of torque at 2000 RPM. She is going to be a monster.

Bob U

Agree, that's the best that I could do. I was coping it off of a video.

Bob U

Agree, crazy Torque right!

I think the torque curve looks a little flat between 2,500 to 4,000rpm compared to before and after that RPM range.
Looks like GM may have pulled a little timing out of that RPM range to reduce the torque, traction maybe?

Imagine what a good aftermarket tuner might be able to do!

Tmill

tune and exhaust and maybe a little work looking at 1000hp no problem

Bill Dearborn

Seems like the Torque Curve is wrong. With the HP being equal to the Z06 to a little above 3K rpm it seems like the torque curve should be the same until that range as well. HP is torque times rpm divided by 5252 so there is a direct relationship between the two curves.

Bill

Bob U

Agree

Ben@WeaponX

Interesting to see but agree with BD.

I'll bet they have it tamed down low with TM as they appear to trace the line of the LT4 till 4,000 RPMs. The Z06s can be massaged a lot down low to unlock more potential, as I'm sure these will too.

PRE-Z06

Thanks for sharing, anyone know the cam specs yet of the new LT5?

Dave Schotz

The reason they don't intersect on this image at 5252, is because the 'scales' on HP & TQ are different. They'd have to be the same scale and then would cross at 5,252.

Best Regards,
Dave

3 Z06ZR1

Not quite! More than a little work!
It will be a beast Stock!

Bob U

The dyno graph came from the Harlan Charles Corvette ZR1 presentation at the Rolex 24. Start looking at the 8:00 time and on from there, some good info in it.

http://www.corvetteblogger.com/2018/...ex-24-daytona/