Airbert:
I forget where I saw it -- Triumphtune, I think -- but a 2" inner diameter is
supposed to be plenty. That's what I'm running.
--
Martin Secrest
73 GT6
72 TR6
Aribert_Neumann@magna.on.ca wrote:
> Greetings all:
>
> I am updating the exhaust system on my 2.5L Spit bodied GT-6. I have 6 into 1
> headers. I am trying to decide on the diameter of the exhaust pipe
>immediately
> after the header. Currently I have a 2 in. dia. tube that expands to about
>2.5
> in. dia. at the header. Should I consider upgrading to 2.25 dia?
> Replacing the collector pipe is part of upgrading the exhaust by replacing the
> Monza "resonator" that fits between the frame rails with a 2 in. dia inlet x
>30
> in. long glass pack (purpose is to quiet the exhaust level a bit and reduce
> backpressure, Monza resonator is a 14 in. long glass pack with less that a 1.4
> in. internal dia. - a major flow restriction). FWIW, engine is mildly ported,
> S2 cam grind triple 40DCOEs and electronic ignition.
>
> Question for those of you who have 6 cyl engines with a single exhaust - what
> diameter exhaust pipe do you have after the exhaust manifold or headers?
>Anyone
> out there felt that they went too large in exhaust pipe diameter and if so
>what
> would the symptom of such be?
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