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What Map Sensor for hight boost ?

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Old 24 April 2001 | 12:32 AM
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What map sensors do you guys use when you up your boost ?

Clint
Old 24 April 2001 | 12:49 AM
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clint, what are you after exactly?

the most common map sensor when going above 1.5 bar boost is the 3 bar map sensor, the same one the cossie uses.

in case you dont know, you have to use 1 bar of the 3 for vacumn reading so you really only have 2 bar boost to play with.
when you get to above 2 bar then you need to do some pretty trick stuff with the maps, mike rainbird should be able to explain this to you.
Old 24 April 2001 | 02:35 AM
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Strange john - I run over 2 bar on my cossie and its on a standard map sensor - non of this fancy 3 bar stuff!
Old 24 April 2001 | 09:38 AM
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From: SSO2003 2nd, SSO2005 1st, SSO2006 2nd, TACC Rd4 5th 4wd: In my car ;-)
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Unless you have a re-mappable ecu, where the sensors can be calibrated, changing from standard can be a real pain. Remember that map sensors work on 0~5volts, which is divided up by the range of the sensor. The ecu is calibrated to expect a certain voltage, at a specific pressure.

Get a MoTec, ect', and run what you like

Later cars have a 2.5bar map sensor (runs about 1.5bar +), ealier cars can run about 1.3bar (I think).

Mark.

Old 24 April 2001 | 06:57 PM
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there is nothing fancy about a 3 bar map sensor, they are cheeper to buy that a 2.5 or 2 bar because they are so comonly used.
Old 24 April 2001 | 09:54 PM
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Thanks for the reply guys I really wanted to know because someone told me the common conversion was to use an Escort Cossie item, and I have a box full .. so I thought I might be onto a winner in your sales section... lol

Most ecus supply the sensor 5.12 volts which using an 8 bit sampler(0-255BIN) and a 3BAR sensor the ecu can plot boost at every 0.17 PSI.

Regards
Clint
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