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Summer is Winding Down But We’re Still Going

By Jennifer on August 27th, 2018 in Main News, Site News

We are so happy summer (and the heat!) is winding down. It's been a busy month for us and there is a lot coming up. Follow us on Facebook to stay updated.

We've been adding tracks like crazy! (Contact us if you'd like your track added.) Check out our most recent additions:

We are now adding tracks worldwide. Check out all the tracks we have in the US and internationally.

Our Recent Articles on EngineLabs

By Jennifer on August 20th, 2018 in Main News

Our latest article is out in Dragzine. Check it out:

What You Need To Know: Mechanical Fuel Injection Types and More

This is just the most recent of several articles we have done for them. If you'd like to see our other articles, view Jennifer's author bio on their site. If you'd like to see all the articles we've written, check out our list of articles or our archive of articles.

Thanks to Bob Beck #46!

By Jennifer on August 13th, 2018 in Features, Main News

Check out Alan Beck #4, Bob Beck's son, storming around the Tom Manning Memorial race in their 360 engine powered Gun Slingers Winged Sprint Car at the 'Noceti family' Stockton 99 Speedway on June 6, 2018.

We recently had a discussion with one of our ProTune customers, Bob Beck #46 regarding his use of our site. Check out his thoughts on his experience:

Regarding fuel mixtures for Co. Nat. Spdway and Stockton races:

  • for the 360 engine; I used the program you have set for the 360 and ran the entire show; 7/6-7/18 at Co. and the Stockton show without having to adjust fuel mixture.
  • For the 410 engine used the program for the 410 and had to adjust mixture on all days raced. At Stockton it got so rich I didn’t bother with the HS bypass and went directly to the main jet.
  • I have concluded that some thing is not correct in 410 program: I believe it is the pump flow; 4.07.
  • I back tracked main jet change to pump flow of 4.56 +-.
  • I have sent pump to be flowed (subsequent flow test, 4.9 GPM).
  • I never new before how critical fuel mixture could be.
  • In years past I would be walking all over cars in warmups but later in the evening I could hardly keep up to the same cars.
  • What an eye opening this is.

Bob Beck #46

Thank you so much to Bob for sharing his thoughts and experiences!

Join our newsletter

By Jennifer on August 6th, 2018 in Main News

Stay updated on recent research we've been doing by joining our newsletter. We feature tips and news from sprint and drag racing. Occasionally we feature other types of racing too. We send out newsletters 2-3 times a year and we do not share your information with anyone.

Check out our online archive of newsletters. You can enter your email address to join.

It’s the End of Another Month

By Jennifer on July 30th, 2018 in Main News, Site News

In July we made a few layout changes to the site. We are also busy writing articles for several outlets and adding tracks to the track weather section. It's been a busy month with lots more to come!

Here are the tracks we added in July:

We are now adding tracks worldwide. If you don't see your track in the list, let us know and we'll add it.

Engine Tuning Using The Main Bypass

By Jennifer on July 23rd, 2018 in Info and Education, Main News

When you’re thrashing in the pits getting ready for the next run, a quick way to update your jetting is to adjust the main bypass while leaving the rest of the jets alone.  If you have a really well dialed-in jetting combination with good fuel system pressure, this form of tuning simply controls how much fuel is going to the engine and how much is being diverted back to the fuel tank.

Tuning Steps

The larger the main bypass jet, the more fuel is diverted away from the engine.  This can sometimes feel counterintuitive.

Read the rest of this article »

Follow Us On Facebook

By Jennifer on July 16th, 2018 in Main News, Site News

Did you know we're on Facebook? Give us a follow so you can be updated on what's new with us.

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Have you visited our partner site?

By Jennifer on July 9th, 2018 in Main News was started several years ago in partnership with This site has many books and other resources for racers.

If you've seen our articles page and want more, check out the free articles available on They just might help you smooth out your setup.

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