headers or no headers
#1
headers or no headers
i know a guy who works at the ford motor company i was asking what kind of headers should i get for my 1998 f150 4.6 he then told me there is no need in paying 3 to 6 hundred dollarsto try to do what ford motor company done in the first place when they made the exhaust manifold plenty large enough i then looked at mine and as far as bang for your buck it is no diffrence really i know i will get some explosive remarks for starting this thread but here it is yall run with convence me to get headers
#3
according to the ford man who studies them he told me the factory manifold will let off the same amount of exhaust as the headers will the factory exhaust manifold was designed with headers in mind you see they are competing with dodge chevs gmc honda toyota so they made exhaust just as good as a header so they can still say i got more power without aluminum block and without headers that is what was told to me by an ase cert ford machanic specialized 4.6 5.4 he said they done test on fact manifold and headers and the differance was the header beat the fact manifold by just a cple of points he was just giving me advice by saying for 3 to 6 hundred dollars the headers just isnt worth it
Last edited by f150suds; 02-10-2011 at 09:57 PM.
#5
All you got to do is look and hold at a set of headers and you'll realize that:
a) they look way better
b) they are considerably lighter than the heavy cast iron manifold
c) there is far more flow area
The less resistance the engine has to pushing out exhaust gases the more power you will have. Same thing goes for your intake, bigger smoother shorter straighter the tube, the less losses you'll have and your engine doesn't use as much power trying to pull air into the motor. Get the headers, you won't regret it.
a) they look way better
b) they are considerably lighter than the heavy cast iron manifold
c) there is far more flow area
The less resistance the engine has to pushing out exhaust gases the more power you will have. Same thing goes for your intake, bigger smoother shorter straighter the tube, the less losses you'll have and your engine doesn't use as much power trying to pull air into the motor. Get the headers, you won't regret it.
#7
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#8
i am just going by the ford mechanic he says the factory manifold is just as good as a header and just as much exhaust will leave the factory manifold as it will in a header for this particular engine all i am sayin i do know that i run strait pipes with 3 inch tips on mine and it sounds pretty dam good
#9
i am just going by the ford mechanic he says the factory manifold is just as good as a header and just as much exhaust will leave the factory manifold as it will in a header for this particular engine all i am sayin i do know that i run strait pipes with 3 inch tips on mine and it sounds pretty dam good
#10
i am just going by the ford mechanic he says the factory manifold is just as good as a header and just as much exhaust will leave the factory manifold as it will in a header for this particular engine all i am sayin i do know that i run strait pipes with 3 inch tips on mine and it sounds pretty dam good
#12
i like to get advice and oppinions from people who have been there and done that i thought to myself long headers has got to be better than factory manifold but according to the man that helped designed the 4.6 engine manifolds and all they dont he was the one that told me this like i said before i only wanted opinions
#13
i like to get advice and oppinions from people who have been there and done that i thought to myself long headers has got to be better than factory manifold but according to the man that helped designed the 4.6 engine manifolds and all they dont he was the one that told me this like i said before i only wanted opinions
#14
Ford designed the engine tune with the stock exhaust, so yes your mechanic is partially correct. If however you want the best possible performance from your engine, get a set of properly designed headers, tube diameter, tube length and collector size for the anticipated power level. Then have a custom tune made for the engine with headers.
If the engine has 200 HP stock I would design the headers for 250 HP then get the fuel and spark maps set by a reputable tuner.
If the engine has 200 HP stock I would design the headers for 250 HP then get the fuel and spark maps set by a reputable tuner.
#15
i like to get advice and oppinions from people who have been there and done that i thought to myself long headers has got to be better than factory manifold but according to the man that helped designed the 4.6 engine manifolds and all they dont he was the one that told me this like i said before i only wanted opinions
so the facts proved to you on dyno sheets aren't good enough
let me se if i can find some old track slips and see if that will get you off your "friends" leg