Yeah, I read the same thing in the TR250/6 Comp Prep manual. On page 22, it
states that "When the two tail pipe systems were fitted they always resulted
in a power loss of at least 8 horsepower. These tests were conducted with
full racing, fuel injected engines." That raised my eyebrows also because
conventional wisdom for street racing was always to go with the two outlet
system. I was wondering if Kastner's results were unique to the fact that
they were running 2 ½ inch diameter pipes with NO mufflers at all on a full
race, fuel injected engine. Perhaps a stage 2 street engine with mufflers
would yield different results. Anybody know?
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From: Scott Decker [SMTP:sdecker@bellsouth.net]
Sent: Sunday, January 31, 1999 10:27 AM
To: Triumphs List
Subject: General exhaust question
List:
I was browsing thru the Competition Prep manual for the GT6 and
found an
interesting tidbit that I'd like to throw out for comment. Kastner
states
(basically) that making a dual exhaust exit cost his car about 6
horsepower
versus a single exhaust exit. I'm certainly not questioning the
master, but
is this normal? There are many dual exhaust systems available for
the GT6,
and they are in common use today on street and race cars. Surely
I'm
missing some basic exhaust knowledge here. I'm interested because I
am
about to purchase and install a street/race type exhaust system.
Reply to
the list or me personally.
Thanks for all the good advice and comraderie in advance.
Scott Decker
70 GT6+ KC79034L
Braselton (Road Atlanta), GA
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