<VV> carbs- racing

[Frank DuVal]

The reason NASCAR and local circle track events require CARBS  is so 
tech inspections are easier. "You have the correct carb for this race so 
you can run". With EFI, there would be too many variables to inspect for 
each race. And just think of the software checks to make sure you're not 
cheating....

Around here different circle tracks require different engines! (Saluda 
vs Potomac tracks)  I don't know the specifics, but I can ask my race 
engine building buddy.

Frank DuVal

djtcz at comcast.net wrote:

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>I don't have a copy of the current NHRA rule book, but many classes simply require carbs. 
>If we're talking NHRA Pro Stock, one of the most highly engineered normally aspirated classes, they >>HAVE< to run carburetors when they run 6.6 seconds at over 200 mph. 
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>Even NASCAR requires carbs ( one carb, actually ) but that may be changing. 
>http://sports.espn.go.com/rpm/nascar/cup/news/story?id=4414698 
>Here's a comment credited to Danny Lawrence, who is the engine builder at Richard Childress Racing and builds the engines for drivers Kevin Harvick, Robby Gordon, and Jeff Green. 
>"We have outdated the carburetor, but with a computer system on a fuel-injected engine, it would be easy to get an unfair advantage." 
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>The NASCAR advantages may include better fuel mileage (weight saving, fewer pit stops), and improved reliability from better mixture control when the track temp changes 15 degrees, but I'm pretty sure ANY reduction in HP in the operating range of ~ 7000 -10,000 rpm would cast a deciding veto vote. 
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>Dan T 
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