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08-14-2005, 07:20 AM
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#1
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Montana Master
Join Date: Feb 2004
Location: New Braunfels
Posts: 664
M.O.C. #920
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Boost Gauge
Would like for someone to tell me the usage of a boost gauge. I recently drove a Ford truck which had the boost gauge built in. Upon acceleration I noticed it would move up, upon deceleration it would go back down. Movement is similar to the tachometer. What am I missing? Thanks,
Weldon
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08-14-2005, 07:44 AM
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#2
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Montana Master
Join Date: Jan 2005
Location: Cooper
Posts: 1,230
M.O.C. #3029
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Weldon-
A very good question and I can not describe it in words so I went out and did a search.....hope this website will answer your question.
http://encyclopedia.laborlawtalk.com/Turbocharged
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08-14-2005, 08:57 AM
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#3
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Montana Master
Join Date: Aug 2005
Location: Manassas
Posts: 562
M.O.C. #4327
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Thunderman,
Log on to this link and you will find your answer. Also tons of information related to PSD's.
http://forums.thedieselstop.com/ubbthreads/
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08-14-2005, 04:29 PM
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#4
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Montana Master
Join Date: Apr 2004
Location: Prescott
Posts: 505
M.O.C. #1344
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Thunderman,
the boost gauge registers the amount of pressure generated by the turbocharger to force the air into the cylinders on a diesel engine. As you increase the load on the engine and give it more fuel, the boost will go up, then back down with less load, etc. The boost must also be read in conjunction with the exhaust gas temperature, which unfortunately, most mfgs don't put on their diesel trucks. Be sure to add one as it tells you more about what your engine is doing than any other gauge. If you have a diesel, you must have an EGT/pyrometer.
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08-15-2005, 06:13 AM
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#5
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Montana Master
Join Date: Feb 2004
Location: New Braunfels
Posts: 664
M.O.C. #920
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Charlie and 5rvers,
Thanks, I did check the links suggested. Lots of information,
Bill Hill,
Presently I don't have the EGT or boost gauge. I think I understand some more than before. If you were going up hill pulling a Monty and your RPM was around 1900 which was as high as the tachometer would go without changing gears....would the result likely be high EGT and low Boost. Thanks!
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08-15-2005, 06:52 AM
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#6
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Montana Master
Join Date: Feb 2005
Location: Kalispell
Posts: 937
M.O.C. #3113
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Thunderman, Paul said that you are correct. That is exactly right.
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08-15-2005, 04:37 PM
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#7
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Montana Master
Join Date: Feb 2004
Location: New Braunfels
Posts: 664
M.O.C. #920
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Quote:
quote:Originally posted by Kathi
Thunderman, Paul said that you are correct. That is exactly right.
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Kathi & Paul,
Thanks for the help!
Weldon
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08-15-2005, 07:00 PM
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#8
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Montana Master
Join Date: Nov 2002
Location: Oceanside
Posts: 20,028
M.O.C. #20
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Weldon, that boost gauge on the Ford has a redline on it at about 35 psi. I just watch to make sure I'm not approaching that redline. So far I've never seen the boost go over 28. That was with the house behind and going up a very long and steep grade with the cruise holding the speed. I need to go read that link to get a better understanding of this myself.
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