i know in a perfect world the x or H pipe should be equidistant from each header but this is an 89 f-150 4x4 so that can't happen right now i have dynomax blackjack headers with 2.25in (true duel) exhaust going to the mufflers and 2.5in out of the mufflers exiting infront of the rear tire, i was wondering how much an x or h pipe would benifit me but the only spot where i can put it the drivers side pipe is about 2 feet further away from the header than the passengers side would this hurt performance?

i know there is a sound differance and i also know that in a perfect world you take a wax crayon and draw a line from your headers back and put the x pipe where the wax did not melt off but that's not going to happen with this exhaust setup

so how much h/p would this be worth

here are my engine mods
302
HEI pro billet dissy
Mallory coil
FRPP <A href="https://www.ford-trucks.com/rx98192zju/kwldirect.php?kwid=625" target=_top rel=nofollow>plug wires
Ported E7 heads
Edelbrock RPM Air gap intake manifold
Holley 570 vac. secondary carb
Cam:300 intake/ 310 exhaust adv. duration, duration @ .050 of 224 intake and 234exhaust, Valve lift of .496 intake and .520 exhaust, Lobe C/L is 112
Acell 14in Aircleaner with offset base
Dynomax Headers
2.25in duel exhaust to the mufflers (summit welded) then 2.5in out of the mufflers exiting infront of rear <A href="https://www.ford-trucks.com/rx98192zju/kwldirect.php?kwid=715" target=_top rel=nofollow>tire

125 shot of nitrous

and i have a 3500 converter and 4.56 gears if that makes a differance

basically is this going to make enough h/p that it's worth my trouble to weld one in?

.

 

An H/X pipe helps cylinder scavenging at low rpms but really doesn't do anything at higher rpms, so I don't see it making a noticable difference on your setup.

 

When you run the pipes down the one side its allmost impossable to get the H pipe where you need it . The only thing the h pipe would do is change the sound of your truck . And i dont think it will even do that because you have the pipes coming out the same side . Lew

 

alright thanks that's just what i was looking for lol do you 2 have something set up that tells you when i make a post cause i think you've responded to every one of my posts

 

..Yes i know evertime you make a post LOL . I think its just because were all gear heads so we post alot on the same threads . Lew

 

It it were my truck, I would go with the x-pipe. They help at more than just low RPM. At higher RPM, the benefits are less noticeable, but they still help smooth out the torque curve and balance the sound.

 

Hre's how you find out where the h or x pipe goes.....

about 1/2 between the header collector & the muffler, paint a strip on the pipe about 12-18" lomg (any type paint, must be bright- white, etc. Drive the vehicle getting engine up to operating temp. Check the paint stripe, where the paint is burned off or discollered most, thats where the H or X pipe goes!

 

Yes that is right . But how do you put an H pipe in with the tank in the way . I use an H pipe on my truck but i dont have the side tank ..Has enyone done this with the tank in . Lew

 

Can you show me a pic, I can't see what you are saying?

 

I don't have a pic of a truck with the tank in , but if you look under our year trucks the side tank (drivers side) is in the way so you have to run both pipes down the other side . So that would make the drivers side pipe longer . So you could put in a h pipe but it wouldn't be in the same place on each pipe . On my truck with out the tank i just run duals striaght back from the headers the have my H pipe right after the tranny pan & thats pretty close to where it needs to be > lew

 

here is an old picture of my old exhaust you can see where the tank is and it's totally in the way as well as the transfer case

 

The H or X pipe goes forward of the axle, typically at the back of or after the trans

 

Mine is right after the trans pan before the drive shaft. Lew

 

This is the h pipe with out tank ..Lew

 

your welds look like mine haha