On Fri, 16 Jan 1998 21:59:21 -0800 Skip Kelsey <kelsey@value.net> writes:
>Karim:
>
>It has been my experience that MGBs do not run well with aftermarket
>air cleaners. The stock carbs are almost too small for the engine. You
>cant runenough fuel thru the needles available. # 6 is about as rich as
you
>can go.You will experience a lean mixture at hiway speeds. I have seen
this
>over and over again. THe only way that you can use higher airflow air
>cleaners is to go to one and three quarter carbs, and run a SY needle.
Then all
>is well. Anyway thats what I have come up with after much experimenting.
>
>Cheers:
>
>Skip
Well Im certainly not going to argue with Skip since he knows
more about our cars than i ever will but....
I was always taught that proper airflow was a matter of "balance"
and that the secret is to have the air intake match the exhaust output
as closely as possible - for example, when i replaced the stock exhaust
system on my GT with a Monza, the car ran horribly, couldnt work out
why for ages until a pal pointed out that the stock air filters retard
air intake too much for a monza system - i switched to a K+N and voila! -
performance restored
Similarly i have stock air filters on the 69 and a $30 exhaust box which
runs much better than it did with the clapped out "performance one it had
before.
Im sure Skip and others can explain it better but its balance
man.....balance
mike robson
69 roadster
70 BGT
72 roadster
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