All this carb talk made me go dig out the formula for needed.CFM. But,
before that, stop and think of the reason Stromberg's were used here as
emission carbs.Even though you, supposedly, can adjust the carb,
adjustment is so small the the value is more psychological than usable.
The Stromberg is basically a non-adjustable carb which made it ideal for
the federally mandated emission laws."If you can't adjust it, you can't
defeat it" to get around the emission requirements. At least SU's can
be adjusted, have a huge variety of needles and 4 easily changeable main
jets. So, in the case of the Stromberg's. "if you can't tune 2, how do
you tune 3"? Now, the formula. CFM = engine displacement x desired revs
divided by 3456. So if you have 155 cid TR6 engine and want to make max
power at 6000 rpm, you need to flow 269 CFM of air. (155cid x 6000 =
930000.00 divided 3456.00 = 269.10). Have a good Memorial Day. Ted
Jeff Scarbrough wrote:
> At 10:56 AM 5/28/2010, ron wrote:
>> I'm not sure about the Weber carbs, however, if you are going to take
>> care of the poor flow characteristic of the TR6 head, it seems you
>> would want to put a better intake manifold on in order to give the
>> gas/air mixture a straighter shot at the intake valve.The Good triple
>> carb intake does that and the Strombergs or the SU's are a lot easier
>> to tune.
> How much more motor do you need to add to use all that air?
> Jeff Scarbrough
> Corrosion Acres, Ga.
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