62 Chevy II AF/X

[TheSilverBuick]

Landspeed Gasser

[squirrel]

see if I can get the mileage into double digits for a little while.

[TheSilverBuick]

I'm going to go for an optimistic 14!

[squirrel]

best I ever did with the 55 with those gears was 13. The 55 had less cam, more cubes, slightly richer carbs, more weight. It'll be interesting to see what happens.

[TheSilverBuick]

And tire height?

[squirrel]

slightly taller on the chevy II.

[Deaf Bob]

I call 15.5!

[squirrel]

I'm still hoping for more than ten

[TheSilverBuick]

I'm still hanging on to 14.

[SuperBuickGuy]

ok...

I played proctologist last night, swapped in a different third member in the rearend. 2.47 gears, open differential. should give me about 2200 rpm at 75 mph. planning on a trip to Tucson today.

would that make you a no va proctologist?

[squirrel]

I don't know.

Got 10 mpg when I filled up in Tucson, after driving on the freeway 70 miles, and around town another 20. I guess it's better than 7.

[TheSilverBuick]

Dang, I was waaaay off. Does it sound deeper loaded up against the taller gears?

[squirrel]

hard to say, the exhaust note is not very consistent...the glass packs rap a lot, it doesn't really have the throaty roar that lets you tell when it's working. I did notice that I barely push the throttle when driving on the highway.

Mufflers might be my next project. Thinking about something like this...

http://www.summitracing.com/parts/wlk-18381/overview/

[Deaf Bob]

Kinda surprised only 3 better... .. Efficency rpms for BBC the same for SBC? 1750 rpms, I think? .. In the 70's they were saying you wanted around 1750 rpms for maximum effeciency.. More or less hurt mileage, of course that is out the door the way you have this motor built? ..

[TheSilverBuick]

Hmm, interesting, both my Centurion and Firebird audibly change quite a bit with the glass packs through the load range. Sound FX for the AF/X