A couple of years ago I called Ellison and they told me that the main-diaphragm in the TBI cannot handle the alcohol content in the auto gas. That's why I still fly AVGAS.
AVGAS does have another advantage over the auto gas application. If you have a low pressure fuel system it is more likely to get vapor lock with auto gas than with AVGAS. This is the reason why I am not messing around with the Ellison TBI and change the diaphragm and and and..... Besides last summer I almost had a friend killed in a low pressure auto gas carburetor set-up. However my next project (Harmon Rocket or RV4 or RV7 with a rotary, I like Dana's set-up) will have a high(er) pressure fuel system and auto gas. Christian OE-VPD http://www.members.aon.at/oevpd -----Original Message----- From: Don Sprague [mailto:donspra...@houston.rr.com] Sent: Sonntag, 14. März 2004 07:40 To: kr...@mylist.net Subject: KR>Ellison TBI I have an EFS2 Ellison on my 1835cc GPVW. I know that Ben Ellison insists on the use of AVGAS but has anyone tried using auto gas in it? His reason is that auto gas additives will affect the gaskets. I've got about 25 hours on my bird now and did my first "cross country" roundrobin today, about 1 hour and 20 minutes and skirting a thunderstorm cell off the beach in Galveston. What a hoot! I'm beginning to get some confidence in the engine which hasn't stopped since I extended the headertank vent 6 inches. This was really fun! I really enjoyed the accounts of your flights, Larry. It gave me the incentive to continue on til the problem was solved. Thanks, Don Sprague KR2 N118DS Houston, Texas Don Sprague KR2 N118DS Houston, Texas_______________________________________ to UNsubscribe from KRnet, send a message to krnet-le...@mylist.net please see other KRnet info at http://www.krnet.org/info.html
