Chevy S-10 Drag Racer - Full Race

[JoeThaMan]

Chevy S-10 Drag Racer - Full Race
Diesel Drag racing Is Here. Not only are fullsize four-wheel-drive trucks running outstanding times, purpose- built drag trucks are also emerging. One such race truck is Darren Morrison's bad-to-the-bone Cumminspowered S-10. The truck is a Todd bevis-built tube chassis creation, which features a strut front suspension and a 4-link rear suspension. underneath the lift-off front clip isn't your normal gas burner though, but rather, a max-effort Cummins designed for the drag strip.
The engine in Morrison's truck has been modified to get every last ounce of power out of the 5.9L (359 cid) Cummins. For starters, it's not a 5.9L anymore. A custom crank, billet rods, and Ross pistons combine to increase the displacement to 396 cid (6.5L). Although the block doesn't have any concrete in it, a 14mm main stud kit helps stiffen up the bottom end during high rpm passes. up top, the head has been extensively ported on both the intake and exhaust side, and fitted with oversize valves. A keating Machine billet cam and Haisley Machine roller rockers complete the valvetrain.



Block to cylinder head sealing is handled by a custom set of keating Machine fire rings, while a set of stock head bolts (really!) keeps cylinder pressures under control. Speaking of cylinder pressure, keating also helped out with a custom set of compound turbos that create triple-digit boost levels (that's more than 100psi!),and a water injection kit that keeps exhaust gas temperatures under control.
On the fuel side of things, a Scheid P-pump with 13mm plungers provides plenty of diesel to the engine. While keating did the machine work, engine assembly was actually handled by Darren himself. Although the truck has never been on a dyno, estimates based on quarter-mile speeds and e.t.'s. indicate more than 1,000 horsepower at the flywheel.
The other big news on this truck is the transmission. While many drag trucks are sticking with proven drag race pieces like Lencos or Liberties, Darren decided that the extra gears and advantage of a lockup converter tip the scales toward a diesel-specific transmission-in this case a 47RH. The Dodge transmission is far from stock, though, as a custom manual valve body with a transbrake was made just for this application by Suncoast transmissions. The rest of the transmission uses Suncoast parts, as well, and was assembled by Darren himself.
One of the more interesting things about Darren's truck is that it is nowhere near its full potential. Its first full pass at the DHRA finals resulted in a 9.17 at 147 mph in the quarter-mile. but wait, there's more! The pass was on a burnt piston caused by an insufficient fuel supply to the injection pump. On earlier 1/8-mile test passes, the S-10 scorched the strip to the tune of 5.50s, which translates to a mid 8-second pass in the quarter-mile. As diesel drag racing advances, look for this truck to keep pace. Plans for an even larger motor are in the works, as well as updates to the fuel system. This truck will be one to watch in 2008.

Photo Gallery: Chevy S-10 Drag Racer - Diesel Drag Racing - Diesel Power Magazine



Read More | Digg It | Add to del.icio.us


More...