quote:Originally posted by George P:
I agree it would be nice to have a picture of Mr. Mical's headers. They are works of art. My memory is not as good as it used to be, I apologize that I can't be more helpful. The only member I can recall having a set of Pat Mical's headers is Adams Hudson (member name A Hudson). You might send him a private message for his opinion.quote:
Originally posted by SF:
... Tri y or 4-1 header design what is your opinion ...
Tri-Y headers are a less complicated way of achieving results similar to 180 degree headers, they boost mid-range horsepower. Those types of exhaust systems compliment individual runner OR dual plane induction systems which also boost mid-range horsepower.
Problem is ... nobody makes a "good" off-the-shelf tri-Y header for the Pantera. It might be cool to challenge Mr. Mical to do so.
Tri-y's are being used in Nascar and Vintage racing now. They are making considerably more that the 180s do. They are not cheap.
These are Cobra Automotives.
http://cobraautomotive.com/catalog/engines.html
They are getting 620hp at 8,500rpm out of "customers engines".
Base price quoted to me was $3500. Don't know what you would do for mufflers with them?
180s run into a wall at a certain rpm. The GT40 180s were tuned originally to make maximum power at about 5,500 rpm.
You could hear these things from a distance on the race track with the Webers.
They have a certain harmonic sound to them like a church organ.
Nothing else sounded like them back then.
Like the Weber carbs, the 180s will feel more powerful than than a "regular" exhaust because they give you around 50 ft-lbs more of torque over normal exhausts.
You can rout the exhaust through the original exit location and the cargo tub can be modified to give you some cargo space with the exhausts.
I have not seen tri-y race headers on a Pantera YET! The space for them is limited and are as problematic as the 180s are in a Pantera.