McRat Sets Bonneville Record in Duramax

"Casper" is a 2005 GMC Duramax diesel 2500HD pickup with Allison Transmission. McRat drove it to a peak sustained speed of 174.586 mph at Bonneville on pump diesel. It is the world's fastest production diesel pickup, with OEM axles, transmission, and engine running a single turbo.

Category:

Autos & Vehicles

Tags:

• Duramax
• Casper
• McRat
• Bonneville
• Pickup

[DuramaxDieselsdotCom]

The speedo tops out at 120mph, but the engine computer reads up to 155mph. At that point, the engine data goes back to 0 mph and starts climbing again.

When I bought the truck, it had a top speed of 96mph.

[DuramaxDieselsdotCom]

It was running a single Garrett/PPE GT42/45 at the time, running about 50PSI boost. Max horsepower (800rwhp) occurs at 4400 rpm.

This year we hit 197mph running twins, a GT55 on top of a GT42 with 916rwhp at 3800rpm.

[edgepitts]

that must of been such a rush! i go 120 in my duramax and it gets the adrenaline going!

[FORDGTFANATIC]

duramax's are the best sounding diesels

[sc882tt]

how high can you rev it ?

[FORDGTFANATIC]

i wonder what the speedometer looked like :o

[Hotrodx199]

That duramax sounds awesome at that speed! IT sounds evil.

[bytesrule]

Single turbo? I was of the understanding this was Compound turbo'd with a GT42 as the small charger.

[volumejunkie]

You da man Pat.

[Cameronkaley626]

bad ass!