Driving With Open Headers Concern..

[kens64]

Originally Posted by FordF350Baby

There’s definitely a major change in the way the vehicle operates. The headers and cam combo are lethal, I can feel it pick up from the line, and it just keep going and going all the way through the gears pass 100mph easily.

Originally Posted by FordF350Baby

I really havent scene much a power gain at all from either the cam or the headers, sort of dissapointing.

What happened? Did you get the CEL fixed?

[dkf]

I could definatley feel the difference on my 6.8l V10 with just the Thorley headers and Y-pipe. The 460 will actually get better gains from the headers than my 6.8l.

Banks Powerpack 460 Dyno compared to stock

[FordF350Baby]

Well its strange, I may just have gotten use to it too quickly, or maybe the gains have been sapped from the stress of the whole project. I sort of sound like a broken record with my reporting of the gains, but its not as much as I would have thought, not after all that. I think what has happened tho, is when I put that true dual and intake on my truck, that alone did alot for the truck, so I think adding the headers may have assisted a little more with the true dual, so I sort of feel like I have had that power before the headers. I pretty much have to say that cam they put in there had to be pretty near stock, because I really dont see to dramatic of a difference. Then again, I havent really been opening it up lately because I have been trying to save as much gas as possible while trying to recover from that $3,500 bill after the sensor. Ahh I am buying these mufflers, http://cgi.ebay.com/ebaymotors/ws/eB...id=p2759.l1259, and removing the cats, that should make her deeper tone and maybe louder, I will post videos soon as I get the mufflers on and cats off.

[387designs]

wait is this true with amnifolds too. I ahve an 85 300 that i put efi manifolds on. I was told not to start it until i put exhaust on...

[kens64]

Originally Posted by 387designs

wait is this true with amnifolds too. I ahve an 85 300 that i put efi manifolds on. I was told not to start it until i put exhaust on...

???

Read this thread again. Doesnt matter if you have manifolds or headers.