 Just got back from maiden voyage 12.37 mpg! [message #97692] |
Sun, 29 August 2010 01:50  |
tze73
Messages: 13
Registered: August 2010
Location: Montreal, Quebec
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Junior Member |
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Hi all,
We have had a 73 sequoia 260 for about a year now with a Dick Paterson built 455 with 60,000 m on it. Went camping for the week before school starts, maiden voyage after major tour of mechanicals and got amazing fuel economy. We did some city and rolled at 55-70 mph. I was hoping for 10 but this is incredible. Previous owner was clocking 8.3 I cant believe it. This is what i think contributed to these numbers.
-rebuilt the transmission with parts from a diesel torque converter and parts from a 67 switch pitch. ~ 1100 stall original 3.08 gearing.
- re-curved distributor with heavy weights and light springs and adjustable vac advance
- cut 3 loops off quadrajet power piston spring.
- full 6 wheel suspension and brake job with 6 wheel alignment. (rear bushings, relay arm, idler arm, ball joints, rear torsion bars).
- took off three max air vents on roof. there is no air conditioners.
Not only that, it handled like a dream, rock solid on ruts and crappy Quebec back roads.
I had plans to put a Chev tbi with megasquirt but I am afraid to touch anything. What kind of numbers are you all getting?
Cheers,
Keith
[Updated on: Sun, 29 August 2010 09:25] Report message to a moderator |
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