hello everybody, i have a 03 f-250 crew cab 7.3 with a new s-b cold air intake,superchips programmer(on 110 hp),glasspack muffler. i wanted a delete pipe but mechanic said it might not pass inspection. my question is my truck is not blowing any black smoke and when it goes into 4th gear you here shhhh sound the when i mash on it it sounds like it putters like it,s defueling. do i need bigger injectors. thanks for any help on this. mike p.s. thinking about the w.w and dual exhaust.

 

For the most part, less black smoke the better it is running. With every little mod I have made the smoke has gotten less and less. Black smoke is nothing but wasted fuel.

 

the sssshhhhhhh is normal however the chug or huffing sound under acceleration is probably turbo surge you should fix this as soon as possible IE wicked wheel or a ported ATS compressor housing

 

Well no smoke is a good thing, lot's of smoke is unburnt fuel and wasted power. Sound's like your truck likes the stuff you did to it. But the SHSHSHSH you hear is surge created from truck breathing better. Compresser is spinning more rpm. Change compresser housing to a ATS housing. Leave wheel alone. To get our truck's to be smoke free is a hard thing to do. You might have a weak HPOP. Most programmer's turn the fuel up. Unless you get custom live tuning, then you can control air and fuel mix for less smoke. Other's will chime in on there thought's. Have fun and don't push a hole through the floor board!!!!

 

thanks guys, i figured when you have less smoke the better. I have no chugging or huffing just that wooshing sound.

 

The single biggest thing I did to get rid of the black smoke was get rid of that junk K and N I ran for years because I swallowed their advertising. What completely got rid of it was the big exhaust. Sounds great and does not dump unburnt very expensive fuel all over the road anymore.

 

appreciate your input guys. with these rising fuel prices i want to get the best possible fuel mileage plus unleash the beast.

 

I was behind a Dodge/Cummins yesterday in the wagon. That thing was belching out more smoke than a tri-axle. I just shook my head. At three something a gallon for fuel - I don't get it - and apparently he doesn't either. I was a little interested though - he had a nice looking '63 ChevyII on the trailer!

 

Sometimes it's just cool to blow a little soot. I do it on occasion, but only when "asked".

The 'ssshhhhhh...." sound may not be surge. If it sounds like a "chufffa-chuffffa-chufffa.." sound then it might be. Just a sssshhhhh... is excess boost blowing back out the intake that you couldn't hear previously. When the tranny shifts in to OD, there is a bunch of boost still in the "pipe" that the engine no longer needs, or can use. So it blows back out the way it came to equalize.

 

the swooshing sound im getting sounds like i am getting all the air the truck needs with new air box but once in up to 1600 or so rpms and i step into it it goes pitpitpit like its cutting out, like cutting the fuel off but im still going. sorry about last nights replys i had to crash out.(night work).

 

first thing would be to check your fuel filter

 

Okay Joe, I have to ask, are you sounding these out as you spell them???

 

The first question is before you added the SB intake were you getitng more black smoke? If so then it was because of the restrictive stock filter setup not allowing enough air into your cylinders

The shhhhhhhhhhh should you hear when normal driving is the intake drawing air in.
the pitpitpit sound you hear at higher RPM levels is surge

Alot of "off the shelf" tuners only adjust either ICP, or Pulse Width timing, most do not add more fuel(I know this is true for BullyDog, as I had spoke to their Tech dept prior to ditching mine) Custom tunes, as in DP, Tony Wildman,DI, Swamps, Tadd, Cale,etc.... go the extra step and adjust all of those, ICP,PW, fueling maps, etc to get the best performance out of your PSD.

 

Someone's been listening to BIG DADDY GALE BANKS

I agree with this. The SHOOOOOOOSH sound on the 3-4 shift will likely still be there, but the surge under load (1800-2200 RPM) won't be there anymore!!