Too much smoke
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Posting Guru
Joined: Apr 2010
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From: South Shore, MA
Too much smoke
I've been running Brian's tunes for a few months now. I love the way the truck runs with them - though 90% of the time I'm driving around in the "low hp tow" tune. It seems to be the quietest, and provide shifting that works for my drive style.
Unfortunately, if I lean on the go-pedal to heavily (read: more than 1/2 throttle) to merge, or make a sudden lane change, I get way more smoke than I want. Enough to make me reconsider running a factory tune. (The "higher hp tunes" are much worse).
I'm planning on replacing the 6637 with a new element - or maybe even going back to the stock set-up for noise cancellation. What else can I look at to help reduce smoke output?
Unfortunately, if I lean on the go-pedal to heavily (read: more than 1/2 throttle) to merge, or make a sudden lane change, I get way more smoke than I want. Enough to make me reconsider running a factory tune. (The "higher hp tunes" are much worse).
I'm planning on replacing the 6637 with a new element - or maybe even going back to the stock set-up for noise cancellation. What else can I look at to help reduce smoke output?
Hotshot
Joined: Jan 2011
Posts: 18,849
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From: Puget Sound
You might have your tune adjusted. I have my tunes set to react to the MAP signal. If I don't see XYZ boost, it curtails the fuel to ZYX. This makes for a lousy race tune, but it's an excellent DD with good manners. Altitude also plays a factor (for those like me who radically change altitude in a single drive). The tune uses a different fueling strategy, depending on the BARO.
Elder User
Joined: Jul 2009
Posts: 768
Likes: 1
From: Live VT, Work MA
Boost gauge & EGT Gauge?
Reason I ask is to see whether you are experiencing boost leaks......smoke is usually related (and someone with more of a clue can correct me) to a rich mixture so you have more fuel than your level of air intake can support cleanly.
I would look for boost leaks first, then check the turbo condition etc.
Was it always like this?
Reason I ask is to see whether you are experiencing boost leaks......smoke is usually related (and someone with more of a clue can correct me) to a rich mixture so you have more fuel than your level of air intake can support cleanly.
I would look for boost leaks first, then check the turbo condition etc.
Was it always like this?
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Posting Guru
Joined: Apr 2010
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From: South Shore, MA
Just the basics for me; Tank mods w/ pre-pump Baldwin, 4" TB w/muffler, 6637, capped red line, AIH delete, coolant filter & gauges (including FP).
You might have your tune adjusted. I have my tunes set to react to the MAP signal. If I don't see XYZ boost, it curtails the fuel to ZYX. This makes for a lousy race tune, but it's an excellent DD with good manners. Altitude also plays a factor (for those like me who radically change altitude in a single drive). The tune uses a different fueling strategy, depending on the BARO.
Thread Starter
|
Posting Guru
Joined: Apr 2010
Posts: 1,112
Likes: 0
From: South Shore, MA
Boost gauge & EGT Gauge?
Reason I ask is to see whether you are experiencing boost leaks......smoke is usually related (and someone with more of a clue can correct me) to a rich mixture so you have more fuel than your level of air intake can support cleanly.
I would look for boost leaks first, then check the turbo condition etc.
Was it always like this?
Reason I ask is to see whether you are experiencing boost leaks......smoke is usually related (and someone with more of a clue can correct me) to a rich mixture so you have more fuel than your level of air intake can support cleanly.
I would look for boost leaks first, then check the turbo condition etc.
Was it always like this?
With a stock tune, it's fine. Little, to no smoke. The more aggressive the tune, the more smoke it produces. I understand that can be a result of too much fueling/inadequate air intake, but other vendor's tunes have produced less smoke.
I'll try to put some time aside and recheck for boost leaks anyhow.
Elder User
Joined: Jul 2009
Posts: 768
Likes: 1
From: Live VT, Work MA
Boost and EGTs seem to be appropriate for the load. Nothing out of the ordinary.
With a stock tune, it's fine. Little, to no smoke. The more aggressive the tune, the more smoke it produces. I understand that can be a result of too much fueling/inadequate air intake, but other vendor's tunes have produced less smoke.
I'll try to put some time aside and recheck for boost leaks anyhow.
With a stock tune, it's fine. Little, to no smoke. The more aggressive the tune, the more smoke it produces. I understand that can be a result of too much fueling/inadequate air intake, but other vendor's tunes have produced less smoke.
I'll try to put some time aside and recheck for boost leaks anyhow.
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