No, mine is NOT an X51....Notice my torque is also a bit better.

 

Im with Darren here. My GTB car's last motor dynoed at 308,309 and 307HP on a Dyno Jet dyno and its NOT an X51 either. I'll be dynoing the new motor in the next couple of weeks.

 

Here are my results.

https://rennlist.com/forums/996-foru...ith-graph.html

No X-51

 

Is it too early for me to be looking at this ..... or do I see HP/TQ cross at 6700 RPM ?

 

I didn't really think about it, why do you figure mine crosses so much higher up in the rpms?

 

Different scales. If you place tq-curve to hp-scale too, they'll cross at 5250.

 

Oh right I fixed that. Also for comparison's sake I changed the smoothing to 3 and correction factor to SAE like the original post (eek I lost 10 hp!)

 

So - are we coming to some agreement that 3.6s are generally putting out closer to 340-350 hp at the crank, maybe even more?

I have a replacement 3.6L in my 2002 with about 10k miles since replacement - it pulls noticeably better than the former engine. I generally can hold my own with any 3.8L C2S on the track in the straights.

These cars are awesome....

 

I doubt that, but who really cares what it is at the crank? People always say silly things like "add 20% drivetrain loss" I have no idea where they get those stats from. Unless you pull the motor out of the car and run it on a motor dyno, it's irrelevant.

 

Yep, agreed. But I do like to think that compared to front-engine cars (man, that's just wrong), our cars lose a lot less power to the drivetrain... I was coming up with a relative figure of about 15% difference.... but then again you're right, who really cares that much?

Thanks for the thoughts.

 

I have had many engines on either of my engine dynos in the lab then applied them directly into a vehicle and tested them on my dynojet. The consistent number is 17-22% based on brakes, tires and camber/toe variations...

I test engines both at the flywheel and at the rear wheels when possible, but lots of what we do is shipped far, far away... One is coming in from Russia right now!