my super six is done and i'm having fun with it. it's teaching me a lot.
i've learned the low range torgue limits of my Clifford shorties.

toward the future, i'm thinking of a Weber 38/38.

my question. . .

will a Weber increase performance across the RPM range, or will the Clifford keep the bottom where it is, resulting in a wider difference between low and upper RPM performance?

D~~~!

_________________
68 A108
73 Harley Servicar
71 BMW R75/5
48 Indian Chief
2003 Ford Ranger XLT extra cab
1997 Geo tracker(Suzuki Sidekick)

The 38/38 will give you more everything, the bottom end will pick up lots of torque & the top end will pull much harder also. You will need to get the Weber tuned just right but when you hit the right fuel mix it will gain power. I would guess that whatever Weber set the calibration up for on the Jeep inline six engines would be a good place to start on jetting for the Weber on the Slant.


Jess

And MPG for 38/38?

Cheers, Wizard

MPG?
that's on my mind, too.

i suspect it will be considerably less than the BBD.


D~~~!

_________________
68 A108
73 Harley Servicar
71 BMW R75/5
48 Indian Chief
2003 Ford Ranger XLT extra cab
1997 Geo tracker(Suzuki Sidekick)

Hi

Well Dave Vizzard stated in his one book on carbs that a well setup weber with as few cylinders as possible feeding of each choke(barrel) will get very close to fuel injection efficiency as possible

IR setup the best of course!!

But you will win hands down with the weber - just have it set up properly on a dino you will not believe the difference

_________________
Regards,
Fanie Gerber
It's never junk, it's just a part you're not currently using

http://www.valiant50.co.za
Just say I own a few Mopars

Yes they are much more tunable than a BBD and probably get you the best MPG. The BBD can get there too but with a lot more work, but without getting the extra power you will get with a 38/38.



This is my understanding of running bigger carbs. People think off it as flowing more air only. This not 100% true. That piston will draw in the same mass of air each time it moves, but when you increase the flowing ablility of the things before it (carb,valves,ports, intake,ect,ect,ect) it increases the density of the air/fuel. This increase in density makes more compression & a more effiecant burn which gives more power & economy. As long as the fuel can be metered correctly with the carb being used, the bigger the better. Its that ability to meter the fuel correctly that becomes the problem most of the time and the Weber can handle that very good.

Some people try to use the carb size in a way that it keeps velocity up which can effect torque of the engine. The way to do this is in the head ports & intake and not restricting the engine with a smaller carb. Slower air speed in the intake ( by using a bigger carb) can even help it make turns in the runners without having fuel drop out of the air (causing wetflow problems). Sometimes a smaller carb will help a engine run better, even though its for the wrong reasons you might have to go this route until other things are fixed. The Weber 38/38 does not get to the piont of causing lost torque because of size, it is about right to even aid in gaining torque for a mild slant, plus giving more top end performance and enhanced economy. Its still to small for max power out of the slant but without the right head,intake and cam work its hard to make use of any bigger carb size. The Weber and the Holley two barrel carbs fall right in to the needs of most slanters.


Jess