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
>
> On Sep 10, 2009, at 1:06 AM, Oudesluys wrote:
>
>> What strikes me is that a lot of people have changed their exhaust
>> system for a more free flowing/louder set up and claim they have
>> increased power. True/false? It feels faster because of the noise but
>> in reallity hardly ever is, because neccessary alterations on the
>> carb side are and probably ignition are ignored, not to mention the
>> possibly neccessary changes in camshaft timing. These all need to be
>> reset as the free flowing exhaust only will upset the overall balance
>> in the engine settings.
>> Just try to drive without exhaust system (free flow in extremis) and
>> see what happens. It will seriously affect drivability.
>> The so called improvement is often observed compared with a rotten
>> exhaust in the first place.
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