shadetree30
shadetree30 Reader
Jan. 9, 2013 4:19 p.m.

Has anybody done or contemplated doing a CNG conversion?

My thoughts would be on a DD or car hauler...

GameboyRMH PowerDork
Jan. 9, 2013 4:25 p.m.

I've thought about it, common in the rock crawling world, you can run dual-fuel by simply putting the CNG carb in the intake ahead of the gasoline carb/efi system and cutting the gasoline.

Knurled UltraDork
Jan. 9, 2013 7:12 p.m.

We're doing them now. The installation isn't cheap but the people who've done it find that the conversion pays for itself in a year or so. Assuming you spend $20k a year on gasoline, anyway. Given the size of the tank required for any kind of meaninglul range, I'd only do it to a pickup. Figure a tank that is 20 gallons-equivalent will take up the width of the bed, and the diameter will be almost the height of the bed. Steel or spun-carbon tanks are available, with the expected tradeoffs of weight vs. expense.

A gallon-equivalent of CNG is about $.80-2.00 depending on if you buy it from a filling station or have a home fill station.

The new systems are neat. They interface with the PCM in such a way that the computer doesn't know that it's firing the wrong injectors. It's kind of like a piggyback but in reverse.

You'll need to log in to post.

Also on Grassroots Motorsports

Regrets: I Have a Few

18 hours ago in Articles

I have a few regrets when it comes to my automotive loves.

Website Maintenance

19 hours ago in News

The website will be down on Sunday for maintenance.

Podcast Episode 43: VW Golf R preview—featuring Hans Stuck

3 days ago in Articles

A look at the new VW Golf R and a chat with Hans Stuck highlight Episode 43.

Bring Your Car Club to the Mitty

4 days ago in News

Car clubs get amazing perks at the Classic Motorsports Mitty.

Join NARRA at Road Atlanta

5 days ago in News

The ViperExchange.com Grand Prix will kick off the season on April 10-12 at Road Atlanta.

You Need a New Grassroots Motorsports T-Shirt

6 days ago in News

Get one for free with a subscription of two years or more.

I Know He's Cheating

1 week ago in Articles

On the art and lack thereof of cheating.

OUR SPONSORS

Grassroots Motorsports Magazine

Subscribe Today

Also get your instant access to the digital edition of Grassroots Motorsports Magazine!

Learn More