I can't watch over 10 sec... what was the cost and on what octane?

The elusive helliphant vapormotor needs cost/performance comparing.

Update:

According to Randy Bouchillon the heliphant motor is $30K and a little over $2K for the computer. Supposed to make 10000 HP/950 Tq on 93 pump swill.

Last edited by Airwoofer; 04/26/19 06:10 PM.