18 GT manifold on a 13 F150?
05-20-2018, 11:21 AM
#11
Waiting here as well, significant breathing issues above 5000rpms on my rig, nitrous displacing some of the air at higher nitrous levels.
05-20-2018, 01:42 PM
#13
Originally Posted by isthatahemi
Waiting here as well, significant breathing issues above 5000rpms on my rig, nitrous displacing some of the air at higher nitrous levels.
05-20-2018, 04:07 PM
#15
Originally Posted by UNBROKEN
cam profiles are the same after 15 according to everything I’ve read.
05-20-2018, 05:58 PM
#16
With an intake perhaps. At the moment, I haven't really put much into this truck, and its' gone next spring, so I'd rather pay for nitrous than parts. I am considering a 2015 mustang manifold, pretty much just want to get into the 11's. My truck didn't have much more to give, but I like the fact that I have nothing significant done other than squeeze.
05-21-2018, 08:06 AM
#17
Originally Posted by isthatahemi
With an intake perhaps. At the moment, I haven't really put much into this truck, and its' gone next spring, so I'd rather pay for nitrous than parts. I am considering a 2015 mustang manifold, pretty much just want to get into the 11's. My truck didn't have much more to give, but I like the fact that I have nothing significant done other than squeeze.
05-21-2018, 01:36 PM
#18
Other option to unbolt the exhaust. Common narrative is that the stock exhaust doesn't limit power much, which may be true at stock power levels, but at 550+hp, it's a bottleneck. Truck is nearly stock quiet, it's a little odd.
Any progress report from the OP?
Last edited by isthatahemi; 05-21-2018 at 02:01 PM.
05-21-2018, 02:02 PM
#19
Senior Member
Swap manifolds, your VE is rolling over above 5k. It's very obvious with the nitrous as you can see. 5k is where ford wanted the truck manifold to make peak power.
05-21-2018, 08:14 PM
#20
Waiting to hear how it goes with the OP. A simple experience of installing the mustang coyote engine cover on showed me how different the under-hood and induction side of the F150 is vs the mustang. Totally different ballgame, and I don't want to Guinea pig it, as I still use my truck for towing our trailer and remote camping, and the F150 manifold is pretty damn good. I can get a 2015 Mustang take-off intake manifold for next to nothing, but it's too much of a trade-off, a lot smoother torque curve though.
Last edited by isthatahemi; 05-21-2018 at 08:16 PM.