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Turbo Lag....

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Old 06-10-2011, 07:04 AM
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Turbo Lag....

Is there anyway to reduce the amount of turbo lag on take off? when taking off from a light even if i punch it, it takes about 5 to 7 seconds to react...just curious.
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Old 06-10-2011, 07:19 AM
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Probably not on a stock truck. A couple of options are getting your FICM tuned by PHP, which is a LOT less invasive than PCM tuning, or getting a tuner. Try two footed driving--hold the brake and give it a SMALL amount of fuel before leaving a stop and roll into the throttle rather than punching it (which makes lag worse).
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Old 06-10-2011, 07:25 AM
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ok, thats what i figured, but now i have another question going off of what you said about FICM tuning....is it better than say going the sct route for your truck and do you get the same kind of results?
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Old 06-10-2011, 07:32 AM
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Originally Posted by cmdevildog16 View Post
ok, thats what i figured, but now i have another question going off of what you said about FICM tuning....is it better than say going the sct route for your truck and do you get the same kind of results?
FICM tuning is a different animal than PCM tuning entirely. You don't get the big HP gains that you do with PCM tuning. It's more of an adjustment to driveability than performance. Typical gains are 1-3 MPG and better throttle response although not every truck responds the same.
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Old 06-10-2011, 07:34 AM
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ok hmmm that is definatley somthing to ponder as i was going to get the sct sf3 soon but now im not sure what to do...lol...thank you for the information
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Old 06-10-2011, 08:03 AM
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The stock program will lag because of air to fuel with no smoke, a custom program will get rid of the lag and give a better throttle responce. Nothing hot, just a mild street tune or try Partsmans suggestion.
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Old 06-10-2011, 10:56 AM
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Alot of my turbo lag went away as soon as I got rid of the y-pipe feeding the EGR cooler....almost instantaneous throttle response now.....and ofcourse an SCT tuner
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Old 06-10-2011, 11:49 PM
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5-7 seconds lag isn't normal. Tell me this, if you go WOT from a stop, does it barely creep along until it gets to about 2300rpm, then take off like a scalded cat? If that's the case, it sounds like your turbo vanes are stuck in the open position and it needs to be taken apart and cleaned at least.
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