Casper is a 2005 2500HD GMC LLY Duramax/Allison with 9,000mi
The engine is untouched (OEM head studs, internally stock, stock injectors, and CP3)
We have the standard "minor mods", such as exhaust, intake, EGR delete, etc.
We put on 3 major power adders: High Tech "McRat" Charger, PPE Dual CP3 System (LLY secondary CP3), and McRat EFILive Tuning.
Dyno was done at Westech in Mira Loma California at a SuperFlo Chassis dyno. STP correction was used. Dyno was a ~6 second sweep from 80mph to 115mph to emulate dragstrip conditions.
We made 659rwhp peak and 1315TQ. Actual torque is higher, but for drag racing we do not care what occurs under 2500rpm, as the engine does not operate in that area for more than .2 seconds.
I cannot "scan" this into an image right now, as my scanner just makes PDF's. You must have Adobe Reader loaded to view it. Performance past 3300rpm and below 2500rpm will be tested shortly running our sled pulling tuning.
http://dieseldrags.com/diesel/2CP3v3-Casper.PDF
Was this dyno'd like everyone does? No. I dyno for my own information and tuning purposes. But there is little doubt there is a bunch of HP. We do not claim to be making more or less power than other combos.
The engine is untouched (OEM head studs, internally stock, stock injectors, and CP3)
We have the standard "minor mods", such as exhaust, intake, EGR delete, etc.
We put on 3 major power adders: High Tech "McRat" Charger, PPE Dual CP3 System (LLY secondary CP3), and McRat EFILive Tuning.
Dyno was done at Westech in Mira Loma California at a SuperFlo Chassis dyno. STP correction was used. Dyno was a ~6 second sweep from 80mph to 115mph to emulate dragstrip conditions.
We made 659rwhp peak and 1315TQ. Actual torque is higher, but for drag racing we do not care what occurs under 2500rpm, as the engine does not operate in that area for more than .2 seconds.
I cannot "scan" this into an image right now, as my scanner just makes PDF's. You must have Adobe Reader loaded to view it. Performance past 3300rpm and below 2500rpm will be tested shortly running our sled pulling tuning.
http://dieseldrags.com/diesel/2CP3v3-Casper.PDF
Was this dyno'd like everyone does? No. I dyno for my own information and tuning purposes. But there is little doubt there is a bunch of HP. We do not claim to be making more or less power than other combos.
