Dark_Horse

i always hear newbies asking about mods that are free/cheap mods for mustangs well i have found one. an up grade from a stock 4.6 TB(65mm) to a sock 5.4TN (70mm) should be good for about 8HP. i found a used 5.4 Upper Plunum, TB and TPS Sensor, on ebay for $30 shiped. i think $30 for a 70mm is better then a aftermarket 70mm for $200. just thought i would let you guys know.

redass02gt

have you installed it yet? key question

Dark_Horse

i am going to tomorrow

redass02gt

keep us posted. you may become a god amongst men if you pull off the $30 mod.

Dark_Horse

well i was going to put it on today at school, but i didn't bring the 5.4 gasket(its like a 1/8th inche spacer that has a ruber seal around it, reusable) but eveything looks like it will just go right on. it looks the same just a little bigger.

JonBeast

What shape is it?

Is it the stock rectangular shape? Does it have a smooth round flow into the manifold like most aftermarket ones?

ZW99GT

Alright, I just learned something new. My f150 has a 70mm TB. Awesome!

Dark_Horse

ok so i installed the 5.4L 70mm tb today and it fits awsome and runs great. so this is a cheap mod for a 4.6 later ill post pistures of them so you guys can see the difrences in them.

M1ke

holy crap thats awesome!! what model year and vehicles have this throttle body?? what all do you need? plenum,tb,and gasket?? details details. also did you notice a difference in power??

Dark_Horse

i installed my CIA at the sme time, ya it is a little not a low but im not sure, together its like 10hp or so. i got the the TB off ebay from a PI 5.4 so probably would be good it came with a gasket, it is like a 1/8th inche spacer with a rubber seal. the 5.4 plenum wont work it has a diff shape and you can use a 70mm tb on a stock upper plenum with on mods to it. so a cheap mod to paying $200 for a 70mm or 75mm tb and $38 for a TPS