Real HP Data, No BS

[Dan Stokes]

Speaking of BS, this is another of my cut n' pastes from BangShift:



HAPPY,HAPPY, HAPPY!!

Took Mutt to Carolina Dyno again today. Though I'm still not wild about this type of dyno you CAN get some good things done on them.

1) The clutch holds GREAT! So, at least at these power levels, that's a done deal.

2) Check the graphs. We'd been messing with the boost controller at the track last year so I knew it was no longer at ~ 1 ATM (call it 15 PSI, which the turbo was built for). I made 1 run that didn't make any sense - maybe Mutt was in 3rd. but I'm not sure. Anyhow, then I got a good solid run and here's the graph:

Call it 224HP! The boost peaked at 21ish. PSI which is a bit much on a stock bottom end. So some boost adjustment (the controller is almost all the way to "-") and we got 16 PSI - more better for this engine.

The next graph:

Note 196 HP (I was hoping for 200 - close enough) and it ran to about 135 MPH or so before the governor kicked in. Speed seems to be limited by RPM and gear ratio, not power!

On both runs note the torque. Love me some Diesels! Sadly, I couldn't give the dyno shop RPM values as I opted for the wrong capabilities on my Monarch photo tach and didn't get outputs. If I ever buy another readout I'll remedy that. If I'd had RPM out he could have graphed it along with the variables shown. The Dynojet software can estimate engine RPM from dyno RPM and a sort of calibration but it is just an approximation so we didn't graph it (not real data).

Anyhow, Mutt drove like a completely different truck. Pedal feel was different, sounds were different, everything was different. On the 16PSI run we entirely smoked out the shop! Never done that before - we're guessing that we had enough fuel to drive it a bit rich with less boost but that's a guess.

Anyhow, I think I can approach the national record (last I heard it was 128ish.).

Dan