6.0 Turbo
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Freshman User
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6.0 Turbo
I've noticed that my 6.0 turbo on my 2005 F250 doesn't boost up as quick as my buddies 2000 7.3 turbo.
Why is that and can I do something about it without buying a new racing turbo?
Thank,
go6.0go
Why is that and can I do something about it without buying a new racing turbo?
Thank,
go6.0go
Fleet Mechanic
Joined: Feb 2008
Posts: 1,955
Likes: 6
From: Eastern PA
How do you know your not spooling quickly? Do you have a boost guage? Check for boost leaks. The turbo is not "lets go super fast right now" but rather required for normal engine function. It's not a race turbo, it's a function turbo that helps that big *** engine hit some rpms with lots of power and torque.
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Nether, I just hate the 1 to 2 sec. lag that you get from quick accel.
I saw all the post about boost lag after I posted this one.
I have noticed that if you roll out with it boost isn't as bad, but I like to play with my truck every once in a while. Rolling out won't get it done.
Just hoping for a cheap or easy fix.
I saw all the post about boost lag after I posted this one.
I have noticed that if you roll out with it boost isn't as bad, but I like to play with my truck every once in a while. Rolling out won't get it done.
Just hoping for a cheap or easy fix.
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Freshman User
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How do you know your not spooling quickly? Do you have a boost guage? Check for boost leaks. The turbo is not "lets go super fast right now" but rather required for normal engine function. It's not a race turbo, it's a function turbo that helps that big *** engine hit some rpms with lots of power and torque.
I know that turbos don't give on demand hp but my 6.0 lag is a lot long than my buddies 7.3 turbo.
Will I don't know a lot about diesels but I'm not a stupid!
7.3's *** is bigger than the 6.0's ***. I'm not talking about displacement. I'm talking about turbo lag.
However, maybe I should put a 7.3 turbo on it. LOL
New User
Joined: Jan 2009
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From: minnesota
the 6.0 turbo should boost alot faster the the 7.3 because the 6.0 is a vgt (variable geometry turbo). in the exhaust side of the turbo you have several little radius style arms, on low throttle these arms angle in to make the space to spool much smaller meaning quicker boost times where the 7.3 does not. now the issues they had with these was because of the egr cooler and bad diesel issues. what happens is the arms start to carbon up not allow them to work together or to there full benefits. there is also a plunger style valve located at the top center of the turbo. that is activated by the t.p.s. to move the arms. that could possibly be bad too.
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Joined: Jun 2007
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The 6.0 and 7.3 turbo's are not the same or interchangable in fit or PCM function. Perhaps the lag is because of slow closing of the EGR valve when you come off of idle (which is divirting some of the exhaust gas back into the intake)? The PCM uses the EGR position and variable vane position to adjust for engine temperature and loading. Maybe a tuner is your answer? Just my $0.02.
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the 6.0 turbo should boost alot faster the the 7.3 because the 6.0 is a vgt (variable geometry turbo). in the exhaust side of the turbo you have several little radius style arms, on low throttle these arms angle in to make the space to spool much smaller meaning quicker boost times where the 7.3 does not. now the issues they had with these was because of the egr cooler and bad diesel issues. what happens is the arms start to carbon up not allow them to work together or to there full benefits. there is also a plunger style valve located at the top center of the turbo. that is activated by the t.p.s. to move the arms. that could possibly be bad too.
They looked at it and said the EGR was bad and they cleaned the turbo.
It did run better for awhile and now it's back. I didn't understand until now why they needed to clean the turbo. I have a friend that had a 99 F250 7.3 turbo and he said "I never had to get my turbo cleaned" and I guess VGT is way. This is my first diesel and I have a lot to learn. So don't laugh at me to hard.
Thanks
go6.0go
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Freshman User
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The 6.0 and 7.3 turbo's are not the same or interchangable in fit or PCM function. Perhaps the lag is because of slow closing of the EGR valve when you come off of idle (which is divirting some of the exhaust gas back into the intake)? The PCM uses the EGR position and variable vane position to adjust for engine temperature and loading. Maybe a tuner is your answer? Just my $0.02.
Thanks man, at least some folks are trying give good advice.
go6.0go
Post Fiend
Joined: Oct 2005
Posts: 10,626
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From: Plano TX and Brentwood TN
One word of warning if you like to hot-rod the truck, make sure you get your truck up fully to operating temp. before you do it, especially if your using the Triple Dog.
Tuned
Joined: Mar 2007
Posts: 342
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From: South central kansas
When my turbo froze up from lack of driving the truck, it made a scraping sound when i let off the throttle. Driving around town at fifteen mph I was sitting at 18lbs of boost. I had to drive 55mph to the dealer to keep it under 26 lbs. The VGT turbo is designed to provide a constant boost pressure to maximize fuel economy from the 6.0. It is not a race turbo, what most people call turbo lag is simply the time it takes for the computer to match the tps sensor to the rest of the sensors related and determine how much boost you should have. The thing that bothers me about this post is, did you buy this truck to tow or work out of, or just to hot rod around with your buddies?? I might get stoned for this comment, but with fuel prices where they are it is irresponsible to just be out burnin diesel because you can, when it is the lifeblood of the american economy. Just my .02
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In order to take the EGR out of the equation without physically doing so, you are actually going to have to get a custom tuner(like SCT) in order to turn off electronically the EGR valve.
One word of warning if you like to hot-rod the truck, make sure you get your truck up fully to operating temp. before you do it, especially if your using the Triple Dog.
One word of warning if you like to hot-rod the truck, make sure you get your truck up fully to operating temp. before you do it, especially if your using the Triple Dog.
Yes, I always make sure that the temp is up before I do any playing.
It's always best to do that with any type of engine gas/diesel.
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Freshman User
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When my turbo froze up from lack of driving the truck, it made a scraping sound when i let off the throttle. Driving around town at fifteen mph I was sitting at 18lbs of boost. I had to drive 55mph to the dealer to keep it under 26 lbs. The VGT turbo is designed to provide a constant boost pressure to maximize fuel economy from the 6.0. It is not a race turbo, what most people call turbo lag is simply the time it takes for the computer to match the tps sensor to the rest of the sensors related and determine how much boost you should have. The thing that bothers me about this post is, did you buy this truck to tow or work out of, or just to hot rod around with your buddies?? I might get stoned for this comment, but with fuel prices where they are it is irresponsible to just be out burnin diesel because you can, when it is the lifeblood of the american economy. Just my .02
However, I didn't buy the truck just to blow diesel out the tail pipe.
In NC in 2005 diesel was cheaper than gasoline, so I bought it for econ. reason in the first place.
I use the truck for hauling, towing and a daily driver, so banging it around everytime I get in it wouldn't be every smart. Diesel repairs are very expensive.
The programer has been very helpful for diesel econ. as well believe it or not.
Thanks for your .02 I glad to know that there are still some folks out there that care at the econ.
Thank,
go6.0go
FTE Leadership Emeritus
Joined: Sep 2003
Posts: 12,246
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From: Houston, Texas
My turbo spooled up considerably faster after I installed my exhaust system. If you don't have one on your truck, MBRP makes an awesome system you can get in either a single or dual setup. It's one of the best things you could ever do for your truck. On top of the quicker spool time, it'll sound awesome and really turn heads!
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