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4.0L OHV & SOHC V6 Tech General discussion of 4.0L OHV and SOHC V6 Ford Ranger engines.

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  #1  
Old 05-18-2009
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Which header?

Well idk which i header i should get. I could get:
JBA $350
OBX $300
Hedman w/ y pipe $263

What do guys think? any experience with Hedman or OBX?
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  #2  
Old 05-19-2009
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idk but it will sound sweet what ever you decide to go with!
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  #3  
Old 05-19-2009
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which gives the better power numbers???
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Old 05-19-2009
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I'd spend the money on the good stuff. JBA for me.
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  #5  
Old 05-19-2009
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I've had the JBA's for about 3 years with no issues. I checked out the OBX headers on ebay because I haven't heard of them before and they looked just about identical to the JBA's. I would still go with JBA though.
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  #6  
Old 05-19-2009
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what all is envolved w/ installing new headers??? any tuning or whats the deal? you do have to remove the motor, right?
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  #7  
Old 05-19-2009
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Quote:
Originally Posted by kymudder08 View Post
what all is envolved w/ installing new headers??? any tuning or whats the deal? you do have to remove the motor, right?

The install is fairly straightforward. The motor does not need to be removed. It is a good idea to remove the inner fenders and splash guards to make the install easier. Other than that it is just a matter of unbolting the old with plenty of penetrating lube and bolting in the new. Not too bad, maybe a five hour job or so. No tuning is required either, although you can mention that you have headers if you purchase a programmer down the road.
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  #8  
Old 05-19-2009
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I'm starting to work on my 4.0 again. I am thinking hard about getting a set of Mac longtubes for the 4.0 mustang and seeing if it fits. My y-pipe is toast anyway so I will have to deal with that regardless.
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  #9  
Old 05-19-2009
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Whats wrong with the 185.00 Pacesetters? I am one click away from getting a set from Summit.
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  #10  
Old 05-19-2009
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ive heard nothing but good things about the jba's, the dyno sheet on there website shows a 20 hp jump, idk how true that is but im curious about the others as well
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  #11  
Old 05-20-2009
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Quote:
Originally Posted by xp1ik99 View Post
ive heard nothing but good things about the jba's, the dyno sheet on there website shows a 20 hp jump, idk how true that is but im curious about the others as well
Have you ever looked inside a stock manifold?? I totally believe it.
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Old 05-20-2009
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Originally Posted by deathbypsi View Post
Whats wrong with the 185.00 Pacesetters? I am one click away from getting a set from Summit.
Nooooooooo Pacesetter is junk, don't do it. Everything they make is crap.
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  #13  
Old 05-20-2009
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Nooooooooo Pacesetter is junk, don't do it. Everything they make is crap.
Yep...it seems everything they make turns to rust very quickly.
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  #14  
Old 05-20-2009
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Quote:
Originally Posted by graniteguy View Post
I'm starting to work on my 4.0 again. I am thinking hard about getting a set of Mac longtubes for the 4.0 mustang and seeing if it fits. My y-pipe is toast anyway so I will have to deal with that regardless.
Dont do it, they wont fit. Trust me, I`ve searched and searched all the different makes of long tubes for the 4.0 mustang. The mustangs engine sits lower than ours and their frame is wider. The longtubes practically sweep straight back. They`ll hit the firewall. Other designs not only sweep back, but pass between the frame and oil filter. I`ll see if I can find some links to the pics I found.

Heres the macs...http://s214.photobucket.com/albums/c...0Mustang%20V6/
pacesetters...http://mustangcollective.com/showthr...ght=pacesetter

There`s a couple more like Kooks and Stainless works.

Last edited by robert ray69; 05-20-2009 at 05:37 AM.
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  #15  
Old 05-20-2009
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i got the headman headers love em
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  #16  
Old 05-20-2009
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From a power and tuning perspective..

Long tube headers will almost always be better for power across the board.
Which ever version you choose try to get a primary pipe size thats about 1/8" larger diameter than the exhaust port. Bigger than that is a waste and can hurt low end TQ.

Tuning. There is a 02 sensor transfer delay setting in the tune. So if your headers 02 sensor port is more than about 2" away from the stock location. You *ought to* have the tune adjusted. You don't have to do this.. but you should because it effects the computers fuel commands.

btw guys.. I'm all about value when it comes to modding a stock or nearly stock vehicle. It's my opinion that on a (stock) short stroke motor like these 4.0L's a guy would be better served by just removing the stock manifolds, using a die grinder (or dremel tool) and cleaning up the bumps inside. Then get a set of high flow cats with stock or slightly larger mid pipe sizing. (after cat exhaust is a given).
This way you'll be legal, will get 85% the power increase, and will be a better bang for the buck.

Headers are "cool" and all. But.. when it comes to pressure within a *system* you can't just change one part and expect great changes. You really need to consider the whole system and what your goal is.

Just my two cents..
Regards, Rich
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  #17  
Old 05-20-2009
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Get the JBAs, mine fit perfect, dont leak and are the best out there for the 4.0L.
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  #18  
Old 05-20-2009
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Quote:
Originally Posted by robert ray69 View Post
Dont do it, they wont fit. Trust me, I`ve searched and searched all the different makes of long tubes for the 4.0 mustang. The mustangs engine sits lower than ours and their frame is wider. The longtubes practically sweep straight back. They`ll hit the firewall. Other designs not only sweep back, but pass between the frame and oil filter. I`ll see if I can find some links to the pics I found.

Heres the macs...MAC Long Tube Headers - S197 Mustang V6 pictures by AtlanticBlue99 - Photobucket
pacesetters...Pacesetter longtube are here! - The Mustang Collective Forums

There`s a couple more like Kooks and Stainless works.

Is it possible a body lift will allow it to clear the firewall? If there's a 50/50 chance I will probably try and see what happens. I can always sell them if it doesn;t work.

With the bosy lift, and the fact that I removed my spare tire carrier, I think i can fit the exhaust up high. In the bed area I can darn near put it above the frame.
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  #19  
Old 05-20-2009
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These are my numbers from the dyno with JBA headers, bama tune, flowmaster 40, and CAI.... After that run I came home and got an adjutment on my tune to get the correct A/F......I love the JBA's....


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  #20  
Old 05-20-2009
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Nice numbers Jeremy. i want to say my dynojet number all stock was 171 and about 179 with the UD crank pulley. That was a manual which would read higher than an automatic.
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  #21  
Old 05-20-2009
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i'd buy the jba headers but are overpriced imo for what they are thats why i am considering other options including getting another set of manifolds to modify as described above
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  #22  
Old 05-20-2009
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Quote:
It's my opinion that on a (stock) short stroke motor like these 4.0L's a guy would be better served by just removing the stock manifolds, using a die grinder (or dremel tool) and cleaning up the bumps inside.
will that really work? i don't know if i could see that adding almost as much power as headers... basically does anyone have proof?
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  #23  
Old 05-20-2009
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Originally Posted by korey89 View Post
Nooooooooo Pacesetter is junk, don't do it. Everything they make is crap.
To late! I ordered them today. I have some Eastwood manifold coating that works very good to put on them before I install them.
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  #24  
Old 05-20-2009
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so even though our rangers are rated at like 205 hp stock and w/e on torque, they only read like 180 whp???
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  #25  
Old 05-20-2009
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Originally Posted by kymudder08 View Post
so even though our rangers are rated at like 205 hp stock and w/e on torque, they only read like 180 whp???
207 is at the flywheel. You lose power going through the drivetrain. You have to remember it takes power to turn everything. Also an auto will soak up more power than a manual tranny.
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