Want to Build Ultimate MPG Motor

[Marc]

...Will I have to use some custom 77mm stroker short skirted pistons, will I have to make some cylinder spacers...?

You can probably use normal 1300 pistons with some massaging. Shape of the wristpin bosses and rod caps will determine if you need to clearance there & the skirts'll need some trimming (do it before balancing). For the same deck height, barrel spacers need to be half-the-stroke-difference thick, 3.5mm in this case. You could do it with off-the-shelf shims for $20 if you stacked them (an .090" plus a .060" should be about right).

[buglover34465]

My engine build is in progress. 76x85.5, Demellow full circle crank with stock flywheel and 1965 jaguar xke equalizer pulley and 356 porsch generator pulley (on order)Will replace the stock doghouse fan with a balanced and welded one (not ordered yet. Any recommendations as to order from?) Currently have a 34 picti solex, just cleaned and rebuilt, (carb adjustments not set yet) Pictures and more info on my engine build are :

http://sites.google.com/site/buglover34 ... dow-vw-bug

http://www.thesamba.com/vw/forum/viewto ... highlight=

http://www.thesamba.com/vw/forum/viewto ... asc&start=

[madmike]

I built a new motor for my 1800lbs laser917 kitcar 1641 w110 cam, stock mild ported heads, 010 dist, merged header,lighted flywheel and a 6lbs pully and 40 IDF's, full flowed 26mm pump a deep sump,I also switched to a 4:12 trans,I havent checked the mileage yet only have 49miles on it I had the same size motor last yr,4:37 R&P,34 carb got anywhere from 25- 45 mpg depended how I drove it,It seems to run OK so far I may play with the jets Sure has more get up & go with the IDF's The milage motor in HVW's early 80's got like 38 mpg with the 40 idf's if i remember right