Re: Ceramic Headers vs. Polished
My thread is for a 2000 gt.. i'll have to do some spec looking up for your '12 V6 and crunch some numbers for specific sizing if that's what you want.. as for short vs long here's the low down. Short tubes are considered a direct replacement for your stock manifold. You'll notice an increase in fuel mileage, throttle response, power, and torque. Equal lengths are even better at these bonuses. Many factors come into play when choosing shorty, long tube, or even tri-y (4 to 2 to 1), headers such as:
1.) Vehicle weight- if heavy (3000 lbs or higher) long tubes will give you more bottom end tq and hp, but high RPM will suffer. If light, it's the exact opposite, but it also depends on proper primary tube sizing. Basically, Light vehicles = shorties with High RPM, but lacking on the low end.
2.) Altitude- as you go up in alt. go with long tube headers no matter the vehicle weight. This will help increase throttle response.
3.) Gearing- low numerical numbers (ie. 2.73:1) in the rear axle- go with long tubes. If high gearing like 4.55:1 or whatever.. go with a shorty.
4.) Compression ratio- it's the same as altitude. Low compression engines benefit from long tubes. High compression engines benefit from shorties.
When it comes to sizing there are some calculations that are needed to determine correct primary tube size on your headers. I'll try to figure out how to link my thread as an example of what I've been trying to figure out. The thing about my dilemma is I'm having a hard time finding accurate info to be able to use for my calculations. If you read it you'll see. Hope all this helps!! Lemme know if you would like more as well!!
---------- Post added at 05:27 AM ---------- Previous post was at 05:23 AM ----------
Hey, not sure how to link straight to my thread.. sorry, but here's what it's under:
Mustang Evolution > 1979-2014 Mustang GT > 1996-2004 Mustang GT >Here Comes EXHAUST!!