Need help!!! LOW BOOST??

[F250 Fever]

for all the mods in my truck wouldt you think my boost would be higher than 20,21,22 i just replaced the fuel filter today and not much of a difference and ive been lookin at all the boots and cant hear any loose air comin out??

any ideas guys thx

[NCHornet]

Nope!!! Not with "The Diablo" , if you had some better tunes you would probably have more boost. Check all your boots for tight clamps, you may pick up a couple pounds. Look for black soot at the up pipe connections. and make sure you don't have a kink in the boost line, the most common problem is where the boost line attaches to the back of the gauge, if the cut isn't close to a 90 degree cut you will loose a bit. But I really think you're expectations were a little high. I would still check the above and you may hit 25psi.

[F250 Fever]

Thx hornet for the info ill get checkin that stuff right away but wow another thing wrong with that dam diablo I swear that thing is pointless!

[NCHornet]

Yep, you would be much better off getting some custom tunes. I have yet to find one person that has run generic and custom that said they liked the generic stuff better. That should speak volumes to you, it did to be 6-7 years ago!!

[Raul@Stealth Automotive]

yah you should see more boost from a custom tuned chip... what are your EGT's at?

[jbeasts10]

Even with the crom file you are running now,,those numbers are low.You should easily be hitting 26 to 28.I ran that very same tune for 2yrs with no problems.

[F250 Fever]

Originally Posted by Raul@Stealth Automotive

yah you should see more boost from a custom tuned chip... what are your EGT's at?

When the boost is at 20 the egts are I think at 8-10..... I think

[Raul@Stealth Automotive]

Originally Posted by F250 Fever

When the boost is at 20 the egts are I think at 8-10..... I think

next time you get on it check your egt's... and your egt probe is in your exhaust manifold right? not the downpipe?

[F250 Fever]

Originally Posted by Raul@Stealth Automotive

next time you get on it check your egt's... and your egt probe is in your exhaust manifold right? not the downpipe?

I honestly don't know because I bought the truck with the gauges already installed.

But next time I get on it ill check.

I've been waiting for the dealer I bought it from to call me back for more info on the truck that he's gettin from the previous owner.

[Raul@Stealth Automotive]

Originally Posted by F250 Fever

I honestly don't know because I bought the truck with the gauges already installed.

But next time I get on it ill check.

I've been waiting for the dealer I bought it from to call me back for more info on the truck that he's gettin from the previous owner.

open up your hood and see if there is a EGT probe on the down pipe... also you can check your driverside manifold for a egt probe as well.... if the probe is on the downpipe then its in the wrong location and your temps are actually 200-300 degrees higher than what your reading

-Raul