Dual IDF's???

[Tom Bishop]

The for the Single Vacuum dizzy = venturi Vacuum = just above the butterfly.

Just below the butterfly = manifold vacuum.

When one hi High the other is low.

Dual Vacuum Dizzy needs both.




Vaders Flat spot = "A" size seat cover

[louisvr45]

To the best of my knowledge Dellorto 36DRLA's are the same as IDF's.

These are better than the IDFs because these give you a vacuum signal so you don't need to go to the dreaded (by some) 009. It allows you to keep running a vacuum-and-centrifugal advance dizzie which is better than only centrifugal. Especially in a light car like a buggy where any slight hoes-poep-of-skinder is translated into a huge jerk or flat spot.

My 36 IDFs have a vacuum connection on the left hand carb and I'm using the standard dissy. My bus also runs like swiss watch and I get up to 9.5km/l on the highway!

It looks like the ifd/ duel carb mod might improve performance and fuel consumption. (mine is 7.5 km/l in city or 8.2 km/l highway)

Would it money well spend it you do that mod on a split bus? or just a waste of money?

[Tony Z]

It looks like the ifd/ duel carb mod might improve performance and fuel consumption. (mine is 7.5 km/l in city or 8.2 km/l highway)

Would it money well spend it you do that mod on a split bus? or just a waste of money?

It will save you money on long distances, but might also free up some power which you will happily use. then the sound changes and I love it, so sometimes you will put your foot down just to listen. In the end it doesnt save you any fuel. (my opinion).
but lets say it does.... lets say it saves you 1 liter per 100km and it cost you R2000 to install and dyno (unlikely to be that cheap). At R8 per liter of petrol.... You need to save 250 liters to pay it off, so thats 25000 km before you start saving money. So not entirely a bad idea if you have a single carb setup. If you already have twin carbs, get the sorted and you will get close to the same economy.