by the 'Maniac » 10 Tue Nov, 2009 6:48 pm
When our buggy's 1600cc engine was basically stock (header, open element air cleaner & a 130 main jet), around town she got 18-20 mpg. Out on the freeway/highway about 21-22 mpg & off-road it dropped to about 16-17 mpg.
Then I added 1.25 ratio rocker arms, dual Kadron 40mm carbs setup by AJ Sims & a CompuFire DIS IX "distributorless" ignition system & the fuel mileage became about the same whether off-road, highway/freeway or around town... 16 mpg. However, the increase in torque & horsepower was well worth the drop in fuel mileage.
1600cc, stock cam, stock heads, Tri-Mil 4 into 1 Bobtail Quiet-pak exhaust system, 1.25 rockers, dual Kadrons, CompuFire ignition system.
4.37 R&P stock tranny gears. 28" tall rear tires.
I have driven her to a bit over 100 mph several times & she was smooth & steady!
It'll be very interesting to see how well the reverse-rotation 140hp+ Corvair engine I'm going to install does in the fuel mileage catagory.
Have FUN FUN FUN... the 'Maniac