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Diesel Engines A forum dedicated to diesel engines fitted to Volvo cars. See the first post in this forum for a list of the diesel engines. |
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max turboboost valueViews : 10959 Replies : 21Users Viewing This Thread : |
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Apr 28th, 2013, 01:07 | #1 |
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max turboboost value
What are the maximum turboboostvalues of the 2.4/d5 engine euro 3 euro 4?
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Apr 28th, 2013, 11:01 | #2 |
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I believe the Bosch MAP Sensor(measures boost pressure) has a minimum of 0bar and a maximum of 3 bar. Normal atmospheric pressure is around 1 bar so maximum positive boost would be 2 bar, more than that would be out of the range of the Bosch MAP Sensor so would cause an ECU error code(overboost).
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Apr 28th, 2013, 18:05 | #3 |
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Ok but what are de boostvalues during driving (full load)? i asume some have boostgauges or torque apps
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Apr 28th, 2013, 19:16 | #4 | |
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Quote:
Perhaps this will be easier to understand. Bosch MAP Sensor minimum is 0 bar and its maximum is 3 bar. So as far as the Bosch MAP Sensor is concerned: 0 bar = A vacuum 1 bar = Normal atmospheric pressure, the air around us(0 boost on a gauge or app) 2 bar = 1 bar of turbo boost pressure(1 on a gauge or app) 3 bar = 2 bar of turbo boost pressure(2 on a gauge or app) The values when driving change constantly between the max and min of the MAP Sensor. Foot to the floor boards under heavy load you would expect to see close to the max of the MAP Sensor, 3 bar(2 bar of turbo boost on a gauge or app). Hope that helps .. EDIT. Are you asking because you plan to buy a gauge or app and need to know what range is appropriate to buy the correct one? Last edited by Shadeyman; Apr 28th, 2013 at 19:28. |
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Apr 28th, 2013, 19:50 | #5 |
Two wheeled lycra lout
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Might help plus the associated links, albeit for the EUIII diseasel but should put you in the ballpark
http://www.volvoforums.org.uk/showthread.php?t=147745 Yes it depends on how far your right foot is into the floorboards. If you want a boost gauge, 2barg should see you OK. Under normal circumstances you wouldn't want the maximum boost to hit the limit of the MAP sensor would you?
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Can we share the road please. Yes, I am insured on both 2 and 4 wheels. Not a motorist, not a cyclist, but a road user. 54 V70 D5 SE (163, EUIII) MTE, Eibach, Powerflex, IPD arb's, TWR FMIC, Ferrita cat-back. |
Apr 28th, 2013, 20:43 | #6 |
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I know the difference between absolute pressure and boost
The reason i need to know is that i have the euro4 2.4 d 163hp If i load the rica d5 euro4 185 hp map i notice no difference in power also the boostvalue's stays with both maps at max 1.3 bar (readout with torqueapp) I assume that with higher power with remaps you need more boost to supress excessive smoke I also have the suspiscion that maybe the standard map is a d5 map because after the dpf softwareupgrade (wich gave problems with loading at volvo and they used something different in the end) the car seemed to have more power with the standard software than before Last edited by 5cilinder; Apr 28th, 2013 at 21:04. |
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