hey yall, i'm fix'n to buy the Edge juice w/attitude for my 2001 F350 Lariat. however i'm completely stomped on what to do with my exhaust. i want to make sure my truck is breathing properly to keep my EGT's down, while also wanting to maintain as much backpressure as possible. everyone i've spoke to recomends just straight piping it, as it's cheap and effective. however i'm not sold on the idea of loosing that much back pressure. is there another solution i could look at. maybe a whole new exhaust system? what would you recomend, and what do they run? thanks for you help.
while also wanting to maintain as much backpressure as possible.
Why? You don't need to worry about that. I think there are people that have come up with a wrongful conclusion between too little backpressure and issues coming up.
I drove 800 miles one day with about as little backpressure as you can get when my bigger turbo "blew off" the downpipe to where it was seperated from the turbo about a couple of inches. So it was turbo then nothing. No issues what so ever after doing interstate speeds for about 800 miles. Once I got back, I had to have someone under the truck pushing up on the exhaust while I clamped it back on, but I would say that would be zero backpressure and as of now to ill effects that I'm aware of.
sorry if i may sound nieve, i'm a little new at this. but doesn't back pressure effect your low end and torque ? i previously had an 03 f250 6.0 and i would disconnect the cat and muffler cause it sounded good, but i noticed the truck felt some what "sluggish"? just wouldn't get up and go as usual ? so would you recomend just straight piping it ? or what would you recomend doin ?
Post turbo, the only point of the exhaust system is to expel exhaust gases away from the cab. The more free the exhaust restriction the quicker the turbo will spool and the better the truck will run.
A balanced exhaust system design is more important on a naturally aspirated engine.
the same tuner with a 4" turbo back exhaust with out a cat and only a straight through muffler runs great... as soon as you touch the throttle you can feel how much more responsive the truck is... it really brings it to life.
As far as your back pressure question... throw your theory out the window... sorry to say but when it comes to a turbo vehicle... back pressure is your enemy.
i would guess the reason your 6.0L felt that way when you disconnected part of the exhaust is because the ecu was not fueling the engine properly for the added flow and faster spool up of the turbo.
4 inch turbo back will do well. You'll lose a couple of hundred degrees of EGT and gain responsiveness. The more back pressure you have with a turbo diesel the higher the EGT. Excessive EGT is the quickest way I know to kill a diesel and turbo.
freeway driving with out a major load i would see about 550-600 egt when i came to a stop light at the end of an off ramp... now... its more like 450 475 and quickly drops to 400 425 wich is great!
hey yall, i'm fix'n to buy the Edge juice w/attitude for my 2001 F350 Lariat. however i'm completely stomped on what to do with my exhaust. i want to make sure my truck is breathing properly to keep my EGT's down, while also wanting to maintain as much backpressure as possible. everyone i've spoke to recomends just straight piping it, as it's cheap and effective. however i'm not sold on the idea of loosing that much back pressure. is there another solution i could look at. maybe a whole new exhaust system? what would you recomend, and what do they run? thanks for you help.
Do your self a favor and dont get the edge! Get a custom burned chip from Swamps diesel , Beans diesel, Jody Tipton, or Matt at Gearhead performance.
Power levels will be higher and it is a safer way to get the power.
As for the exhaust, less back pressure is better when it comes to a diesel. You cannot compare a POS 6.0 to a 7.3 . The 7.3 is a low end grunt engine. The 6.0 is a high RPM race engine.
I would do a turbo back exhaust from anyone OTHER than AFE or BullyDog
As for the exhaust, less back pressure is better when it comes to a diesel. You cannot compare a POS 6.0 to a 7.3 .
In some instances that is true, you cannot compare the two, in terms of exhaust though you can, because that's were it's actually the same as far as requirements go.
As to the POS 6.0 comment, I had a 7.3, it's lacking when it comes to what a 6.0 can do. However, that is going to be a highly individualized assessment due to needs of one driver over the other.
Quote:
Originally Posted by Diesel_Brad
The 7.3 is a low end grunt engine. The 6.0 is a high RPM race engine.
It's higher rpm then a 7.3, that's for sure, but it is nowhere near a high rpm race engine. You're talking about another 350-400 rpms on top of what you see for peak hp/tq on the 6.0 even with tunes. Now for those with bigger turbos and injectors it's probably another 350 on top of what the 6.0 does with those depending on the size.
I know I'm getting off topic, but I felt the need to clarify a few comments that were made.
In comparison the 6.0 is a race engine by design compared to the 7.3
Well, you could say the same thing about a 7.3 as a race engine compared to the old 6.9 then. We could follow that line of reasoning on down the line comparing old engines to new engines.
This forum is owned and operated by Internet Brands, Inc., a Delaware corporation. It is not authorized or endorsed by the Ford Motor Company and is not affiliated with the Ford Motor Company or its related companies in any way. FordŽ is a registered trademark of the Ford Motor Company.
