Upgrades and Aftermarket - 99 & up 7.3L EngineUpgrading or adding OEM or aftermarket equipment to your 1999-Up Super Duty or Excursion with 7.3L Power Stroke diesel engine. Please confine discussion of topics in this forum to those items that are specific to the 7.3L Power Stroke engine.
I've got the straight pipe already. Looks like I'm going to buy a different intake system. What does everybody recommend? I'm not looking for HUGE horespower or boost gains mind you. This is my everyday driver, just lookin for the whistle!
From my understanding coming from a sport compact point of view that can be sorta of applied to a SD is that you need a bigger diameter, high flowing exhaust, downpipe, and intake. My two cents.
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Rolling high and wanting to go higher.
Had a loose pipe clamp, the muffler slid back off the exhaust pipe about 3/4".
Made a good whistle, sounded like my neighbor's 3406 Cat in his Pete.
My 7.3 has a huge Donaldson air filter and a 4 inch intake to the turbine inlet, so I suppose this helped the sound.
Hated to put the pipe back together, ruined the nice sound!
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1999 7.3 F450 Cabriolet Crew Cab with Aluminum hauler bed (love the side storage!), Banks Power Pac, Donaldson Air Filter, Set up for Fifth Wheel, Gooseneck and bumper pull. ATS Billet Transmission, ATS Five Star Torque Converter, ATS Co-Pilot. Pulling a 34 ft. Silverado Aluminum Horse Trailer with Living Quarters.
This F450 will be replaced with a heavier truck, maybe a Freightliner or a Peterbilt around 25,000 GVW. AND with a big manual transmission.
Ok, ressurecting my original thread. Once again, I've got NO MUFFLER. I had it replaced with a 3 inch straight pipe. I might also add that my truck is set on 60 hp via a predator programmer. The other day I had to get a new air fliter so I ran to the parts store with no air filter at all and this didn't make the turbo any louder. I'd just like to hear nothing but turbo, I personally like the sound. I could care less about hp increase. So I'd like to buy a cold air intake if that's what I need. Any ideas on what I should buy? Also, what is this "foil delete" I'm reading about?
Thanks guys.
One thing you can do is check to make sure that your turbo wastegate actuator is allowing the wastegate to close all the way. When I removed my stock actuator to install a turbomaster it was evident that the wastegate was not able to fully close. The position of the stock actuator arm held it ajar even with the engine not running. This probably could have been rectified with an adjustment to the arm length. Turbo whistle was significantly increased after the turbomaster install which holds the wastegate fully closed.
__________________ 2001 F250 4X4 CC Lariat, fuelly; modifications: Ford AIS w/ cool_canuck mod & fender sleeve, 4" turbo-back, mechanical wastegate controller set to 24 psi, dp tuner F5 (60e, 80e, 1200 idle, 120r) all with codes option, trans temp, EGT and boost gauges, max cold valve, dieselsite boots and oil crossover line, 203 t-stat, coolant filter, Riffraff FrX, ITP hutch setup & pre-pump filter, Warn premium hublocks, Red-Head steering gear box, Scangauge II, LED glowplug indicator light.
removed: charge pipe foil, Air Intake Heater (AIH), engine cover & bracket
just to add I have the stock 3.5" straight piped and the ais sever duty intake which is a stock intake not aftermarket and whistles pretty good but other than that you could cross some wires up on your speakers makes a mean in cab whistle not much on the outside haha j/k
btw not to jump in on this thread but he did ask the question earlier what is a foil delete
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2002 F250 Super Duty 7.3l Powerstroke Diesel 4x4
AIS Severe Duty Intake
Strait Piped 3.5"
33" Wrangler MTR's
Firestone Air Bags
Glo Shift air pressure,fuel pressure, and boost gauges
and finally after almost a year of owning this little pearl thanks to a member on the site im finally going to have a center seat and console and believe me when you haven't had one that long thats better than gettin programmer I would know cause I traded a programmer for it lol
The foil delete is removing the foil from your hot side CAC tube.[/quote]
explain
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2002 F250 Super Duty 7.3l Powerstroke Diesel 4x4
AIS Severe Duty Intake
Strait Piped 3.5"
33" Wrangler MTR's
Firestone Air Bags
Glo Shift air pressure,fuel pressure, and boost gauges
and finally after almost a year of owning this little pearl thanks to a member on the site im finally going to have a center seat and console and believe me when you haven't had one that long thats better than gettin programmer I would know cause I traded a programmer for it lol
The foil delete is removing the foil from your hot side CAC tube.
explain[/quote]
Want to know more about this myself, like what it helps/how it helps.
Is straightpiping the best option for HP and mileage gains, or is there an aftermarket exhaust that would actually be better. Is the best thing to do to the exhaust just a better downpipe and straightpipe?
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87 f250 4wd LB ex cab 460 bored .60 edelbrock intake, towing cam glasspacks-6 mpg 8 on good day- my pride & joy once towed my '85 j-co j-crane 28' 5er
99 F250 7.3(engine stamped june of '99) 250K white ex cab lb, 2wd jl audio slash 4ch amp, jl 8" sub, focal components front, infinity coax rear, 10 disc changer
-tymar intake, no muff -bullydog egt, autometer boost -f5 chip w/80t, 80e, 60t, 100, 140 extreme(140 is amazing!) -ats housing/banks big head Chrome fender trim, 265 nitto terra graps, nerf bars, billet grille, '06 headlights, chrome door handles, louvered 5er tailgate
77ish chevy 1500 w/350 bored .30, torqer cam, some sort of intake man, hi perf elec. ignition, elec. fuel pump & fan, headers & single chamber flowmasters, kc lights, 9" lift, 40" tsl boggers, yukon lockers front & rear, dana 60 rearend, 3sp w/granny gear
ONE BAD MUDDER
i put a 6637 filter and did the foil delete with my stock straigthpiped 7.3 and she sounds pretty darn good
some guys dont agree but i think the fol delete made a pretty big difference in the whistle noise
I wanted to know what the cac tube is and where its located but through some research and you tube video i think i figured it out my ? is do I have to take it out to remove the foil
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2002 F250 Super Duty 7.3l Powerstroke Diesel 4x4
AIS Severe Duty Intake
Strait Piped 3.5"
33" Wrangler MTR's
Firestone Air Bags
Glo Shift air pressure,fuel pressure, and boost gauges
and finally after almost a year of owning this little pearl thanks to a member on the site im finally going to have a center seat and console and believe me when you haven't had one that long thats better than gettin programmer I would know cause I traded a programmer for it lol
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