Engine/Transmission (1998.5 - 2002) New Baseline Dyno run

[Diesel Freak]

Today I went to DFI in Wilsonville Oregon to get a baseline for the truck.



Peak HP with a CF of 1. 15 was 378 HP@ 2670 RPM

Peak TQ with a CF of 1. 15 was 881 FTxLBF@ 2020 RPM



BobV and C4L will find the next bit of information interesting.



With a CF of 1. 00 Peak HP was 328.



I also made a few runs with the "Puck" unplugged.



with the Puck unplugged and a CF of 1. 00 HP was 302. With a CF of 1. 15 going puckless was good for 347 hp.



the Puck was good for about 30 extra Peak HP when using DD3's and close to 100 hp at 2000 RPM at 1. 00



Turbo Spool up is right around 1600 RPM



Under load boost at 1394 RPM was 5. 78 PSI

at 1580 RPM boost was 10. 48

at 1677 RPM boost was 15. 10

at 1797 RPM boost was 22. 54

at 2020 RPM boost was 26. 99 (Peak TQ with the Puck)

at 2670 RPM boost was 28. 36 (Peak HP with the Puck)



Boost pressure was senced off the Boost port in front of the MAP sensor in the Head.

 

[Steve St.Laurent]

Hence one of the problems with comparing dyno runs from one dyno and operator to a different one. Those CF numbers make perfect sense. 328 hp x 1. 15 = 377. 2 ; 302 hp * 1. 15 = 347. 3 hp. Where did the 15% correction factor come from? What altitude and temperature were you running at?

 

[Diesel Freak]

Originally posted by Steve St. Laurent

Where did the 15% correction factor come from? What altitude and temperature were you running at?

That was the Dyno manufacturers initial recomendation for the dyno set up.



Altitude was at sea level, and temp was about 55F

 

[Diesel Freak]

I think I will claim 328 HP for any Dyno Shootouts this summer!



One thing to ponder.



stock ETH=245 Flywheel HP



subtract 20% for rear wheel HP=196 HP



Slap in a set of DD3's=296 RWHP



Plug in a Power Puck and install a PDR40



so IMO an ETH should be right around 346 with my BOMBs





328 is not bad when running winter fuel!