Header lenght

72grande · 05-19-2002, 08:35 PM

ok THis should be quick, I know that short headers help either the lower more end or the higher end more but cant remebr which. And i assume lond headers help which ever the short ones dont. And tri-y are suposed to be the best of both?

If that didnt make any sence say so, and I'll try to clarify.

Rev · 05-21-2002, 07:17 PM

My experience is that Tri-Y's work great for the street where max RPM's are under 6000 and you need some low end torque. I'm sure shorties are also fine for the street in 5000-6000 RPM applications.

If you have an engine that delivers peak power at higher RPM's, and is more of a wild street engine or one set up more for the track, you'll want larger primary tubes and 4 into 1 type headers like Hooker Super Comps. That might hurt low end torque in a street engine though.

Try to match the headers to the application of the engine. Hope this makes some sense.

Rev

05-19-2002, 08:35 PM	#1
72grande Registered Member Join Date: Feb 2002 Location: Monterey Posts: 33	Header lenght ok THis should be quick, I know that short headers help either the lower more end or the higher end more but cant remebr which. And i assume lond headers help which ever the short ones dont. And tri-y are suposed to be the best of both? If that didnt make any sence say so, and I'll try to clarify.

05-21-2002, 07:17 PM	#2
Rev Registered Member Join Date: Nov 1998 Location: Houston, Tx. Posts: 3,887	My experience is that Tri-Y's work great for the street where max RPM's are under 6000 and you need some low end torque. I'm sure shorties are also fine for the street in 5000-6000 RPM applications. If you have an engine that delivers peak power at higher RPM's, and is more of a wild street engine or one set up more for the track, you'll want larger primary tubes and 4 into 1 type headers like Hooker Super Comps. That might hurt low end torque in a street engine though. Try to match the headers to the application of the engine. Hope this makes some sense. Rev __________________ '66 Coupe, 306, 350-375 HP, C-4, 13.07 e.t., 104.8 mph, 1/4 mi. O.B.C. #2 '66 coupe

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