What headers?

66StangGuy · 10-20-2002, 03:38 PM

I currently have try Y headers and a friend of mine who races 65 and 66 mustangs says that there no good. I was wondering what headers you guys like and what you would suggest. anyone have any input? I am saving up for something new in my car but i cant figure out what i should do next. If i dont change the headders what should i do?

also had a question about exhaust. i wanted to build an exhaust system from the headders back so that it comes out infront of the back tires with 3 inch pipe. If i put a 2 or 3 chamber flowmaster in between this distance will this cause a performance problem because of the location of the flowmaster. what about backpressure issues? thanks for any ideas guys. Im addicted to this car and i want to find what i should do next to make it faster sound better and look cooler.

thunderbolt · 10-21-2002, 08:35 AM

Carol Shelby thought they were so crappy he put them on all his gt350's. Seriously, what do you want to do. Long tubes are generally good for high rpm race applications. Tri Y's are supposed to be very good on the street, giving decent top end gains,(not as good as 4 into 1 long tubes) and much better torque numbers than 4 into 1 long tubes in the lower RPM bands.
The questions I would ask, are what rpm range is your engine going to live in. What are your primary tube sizes and what about the rest of your exhaust. From you sig, your exhaust looks like a good street set up to me, I would run it.

Rev · 10-21-2002, 06:21 PM

To add to thunderbolts excellent assessment, I just want to say that my Tri-Y's are good to 6000 RPM with good low end torque. That's with an Edelbrock Performer, 625 Road Demon, CC 268 HE, TFTW heads, and 2 1/2" exhaust with 3 chamber Flows. I personally like the Tri-Y's on a street racer type small block car.

Rev

10-20-2002, 03:38 PM	#1
66StangGuy Registered Member Join Date: Feb 2002 Location: Diamond Bar Posts: 258	What headers? I currently have try Y headers and a friend of mine who races 65 and 66 mustangs says that there no good. I was wondering what headers you guys like and what you would suggest. anyone have any input? I am saving up for something new in my car but i cant figure out what i should do next. If i dont change the headders what should i do? also had a question about exhaust. i wanted to build an exhaust system from the headders back so that it comes out infront of the back tires with 3 inch pipe. If i put a 2 or 3 chamber flowmaster in between this distance will this cause a performance problem because of the location of the flowmaster. what about backpressure issues? thanks for any ideas guys. Im addicted to this car and i want to find what i should do next to make it faster sound better and look cooler. __________________ 66 mustang-292-Holley 4160-World Castings Windsor Sr.-Hooker super comp headers-MSD box & Coil.3.55 gears. B&M Z-Gate-Black leather racing seats with 4pt harnes.

10-21-2002, 06:21 PM	#3
Rev Registered Member Join Date: Nov 1998 Location: Houston, Tx. Posts: 3,887	Tri-Y's To add to thunderbolts excellent assessment, I just want to say that my Tri-Y's are good to 6000 RPM with good low end torque. That's with an Edelbrock Performer, 625 Road Demon, CC 268 HE, TFTW heads, and 2 1/2" exhaust with 3 chamber Flows. I personally like the Tri-Y's on a street racer type small block car. 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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10-21-2002, 08:35 AM	#2
thunderbolt Registered Member Join Date: Oct 1998 Location: Houston, TX, USA Posts: 380	Carol Shelby thought they were so crappy he put them on all his gt350's. Seriously, what do you want to do. Long tubes are generally good for high rpm race applications. Tri Y's are supposed to be very good on the street, giving decent top end gains,(not as good as 4 into 1 long tubes) and much better torque numbers than 4 into 1 long tubes in the lower RPM bands. The questions I would ask, are what rpm range is your engine going to live in. What are your primary tube sizes and what about the rest of your exhaust. From you sig, your exhaust looks like a good street set up to me, I would run it.