Tech Answer

What are some general rules for even higher horsepower gains with nitrous?

Generally, forged pistons are one of the best modifications you can make. Retard ignition timing by 4-8 degrees (1 to 1-1/2 degrees timing retard per 50 horsepower gain). In many cases, a higher flowing fuel pump may be necessary. Higher octane (100+) racing fuel may be required, as well as spark plugs one to two heat ranges colder than normal with gaps closed .025"-.030". For gains over 250 horsepower, additional modifications may include a forged crankshaft, high quality connecting rods, a high output fuel pump dedicated to feeding the additional fuel requirements of the nitrous system, and racing fuel with high specific gravity and an octane rating of 110 or more.

Back to Results

Expert Advice & News

Expert Advice


Free Catalog

Our famous Summit Racing catalog and specialty catalogs too!

Sign UpArrow

Sign Up for E-mail

Get up to speed with special offers and event info!

Sign UpArrow

As Seen on TV

Featured products from your favorite shows!

View NowArrow

New Parts

Your headquarters for the hottest new products!

View NowArrow