any N/A guys look into getting the HTC budget kit?
Dec 1, 2005 | 09:45 AM
#1
any N/A guys look into getting the HTC budget kit?
http://chevyhiperformance.com/techar.../148_0405_ls1/
"Talk is cheap. We wanted a graphic demonstration and some hard numbers to back up the babble. For that round, we went to Glen Elsberry and a 351ci LS1-block-based engine that he'd taken fresh from the dyno cell. Glen arrived at the displacement with an HTC Budget Kit featuring a 0.010-inch overbore and a 0.030-inch-longer stroke (3.905 inches). The Speed-Pro hypereutectic pistons were installed 0.005 inch above the deck surface and cohabit with some port-tweaked 5.3L cylinder heads. The compression ratio is about 11.0:1 with a 63cc combustion chamber that Glen massaged to meet the outer limits of the bores.
Elsberry poured the bumpstick to his LS1 freak: a GM ASA road-race cam (0.525-inch lift, 219/236 degrees duration) with corresponding valvesprings. To feed the thing, he plopped on an LS6 intake manifold, attached an 87mm throttle-body, tapped in 30-lb/hr fuel injectors along with a 60-psi Mallory fuel pump, and used an ambient air temp sensor rather than the MAF. The primary pipes on the special dynamometer headers were 17/8 inches in diameter. Fuel was 91 octane. With the mild ASA cam, the gritty LS1 produced 479 hp. The torque curve was flat from 3,000 rpm."
"Talk is cheap. We wanted a graphic demonstration and some hard numbers to back up the babble. For that round, we went to Glen Elsberry and a 351ci LS1-block-based engine that he'd taken fresh from the dyno cell. Glen arrived at the displacement with an HTC Budget Kit featuring a 0.010-inch overbore and a 0.030-inch-longer stroke (3.905 inches). The Speed-Pro hypereutectic pistons were installed 0.005 inch above the deck surface and cohabit with some port-tweaked 5.3L cylinder heads. The compression ratio is about 11.0:1 with a 63cc combustion chamber that Glen massaged to meet the outer limits of the bores.
Elsberry poured the bumpstick to his LS1 freak: a GM ASA road-race cam (0.525-inch lift, 219/236 degrees duration) with corresponding valvesprings. To feed the thing, he plopped on an LS6 intake manifold, attached an 87mm throttle-body, tapped in 30-lb/hr fuel injectors along with a 60-psi Mallory fuel pump, and used an ambient air temp sensor rather than the MAF. The primary pipes on the special dynamometer headers were 17/8 inches in diameter. Fuel was 91 octane. With the mild ASA cam, the gritty LS1 produced 479 hp. The torque curve was flat from 3,000 rpm."
Last edited by moregrip; Dec 1, 2005 at 10:49 AM.
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