I understand what you're getting at. The "what" is that 50 years later
we know that a Healey came from the factory with a fairly restrictive
exhaust system. We also know that by increasing flow, we can gain a
bit of added horsepower--without changing anything else.
Sure, with newer cars being tuned pretty well from the factory, gains
from a simple exhaust "upgrade" are very limited. It's not rocket
surgery.
Get a dyno, measure a stock spec Healey, and measure one with a
freeflow exhaust. I'd bet that you'd see an improvement.
On Sep 10, 2009, at 1:53 PM, Oudesluys wrote:
> Yes, so what?
> Kees Oudesluijs
> NL
>
>
> Eric (Rick) Wilkins schreef:
>> I'm pretty sure that in the case of a factory Healey, the added
>> flow is going to give an increase in performance as the stock
>> system--BN4-BJ7--is smaller than the opening allowed by the carbs.
>>
>> Wilko
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