DQ for "icing"?

Bob · 02-22-2009, 08:28 AM

The last official word by NHRA on this was:

NHRA tech department reminder on manifold cooling

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07/06/2004

The NHRA Technical department has noticed a number of Stock competitors spraying intake manifolds with an aerosol can, more specifically computer cleaner, which can reduce the temperature of the manifold to 62 degrees.

The 2004 NHRA Rulebook, on page 192 states that any method of artificially cooling or heating is prohibited: "Cool cans, wet towels, ice, etc., are permitted in Super Stock, Stock, Super Comp, Super Gas, Super Street, and E.T. classes. Wet towels, rags, ice, etc., must be removed before the vehicle leaves the staging area. Ambient-temperature air only; cooling or otherwise changing of the intake air is prohibited."

The use of these cleaning products is in violation of the NHRA Rulebook, thus ice and wet towels are acceptable forms of cooling, spraying of intake with any artificial spray or coolant is prohibited.

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Nothing has changed since then. Dry ice on the intake is legal. It may be frowned upon, but it's legal.

The one that really gets me is the practice of the west coast racers spraying there radiator, engine, hood, firewall, and air cleaner with ice water, right before a run, and not drying it off. I guess the constant cold, wet mist helps ET huh?

02-22-2009, 08:28 AM	#37
Bob Junior Member Join Date: Oct 2003 Posts: 48 Likes: 0 Liked 0 Times in 0 Posts	Re: DQ for "icing"? The last official word by NHRA on this was: NHRA tech department reminder on manifold cooling -------------------------------------------------------------------------------- 07/06/2004 The NHRA Technical department has noticed a number of Stock competitors spraying intake manifolds with an aerosol can, more specifically computer cleaner, which can reduce the temperature of the manifold to 62 degrees. The 2004 NHRA Rulebook, on page 192 states that any method of artificially cooling or heating is prohibited: "Cool cans, wet towels, ice, etc., are permitted in Super Stock, Stock, Super Comp, Super Gas, Super Street, and E.T. classes. Wet towels, rags, ice, etc., must be removed before the vehicle leaves the staging area. Ambient-temperature air only; cooling or otherwise changing of the intake air is prohibited." The use of these cleaning products is in violation of the NHRA Rulebook, thus ice and wet towels are acceptable forms of cooling, spraying of intake with any artificial spray or coolant is prohibited. -------------------------------------------------------------------------------- Return to 2004 Sportsman News Archive Return to the Home Page Nothing has changed since then. Dry ice on the intake is legal. It may be frowned upon, but it's legal. The one that really gets me is the practice of the west coast racers spraying there radiator, engine, hood, firewall, and air cleaner with ice water, right before a run, and not drying it off. I guess the constant cold, wet mist helps ET huh?