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MAP sensor resolution

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Old Jan 11, 2010 | 03:46 PM
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Default MAP sensor resolution

I didn't want to jack the other thread since this is kinda different.

A buddy of mine was asking me about my plans for my car and I told him I was looking at the Hondata 4 bar MAP sensor for my car. He asked me why and told me that since I wont be running anywhere near 3 bar of boost that I should find a 3 bar MAP sensor(SOS makes a 3 bar). He was saying that the resolution with the 4bar will be kinda like tuning with oversized injectors in terms of resolution.

It makes sense to me since you have to correct the MAP values in the AEM EMS, but I've never heard of anyone having a problem with the 4 bar MAP sensors and boost.

Whats your take on this? Is it true, negligible, or false?
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Old Jan 11, 2010 | 08:17 PM
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Lots of people have ID 1000 injectors and are no wear near the limits with no issue's. I don't have the value's, but I would just call up hondata and ask. I bet their so accurate it won't matter.
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Old Jan 11, 2010 | 08:23 PM
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if your plans of boost come no where near 2 bar, then a 4 bar is kinda useless and yes the resolution becomes kind of junk for no reason that benefits you. so get the 3 bar.
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Old Jan 12, 2010 | 10:03 AM
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Originally Posted by jzz30,Jan 11 2010, 11:23 PM
if your plans of boost come no where near 2 bar, then a 4 bar is kinda useless and yes the resolution becomes kind of junk for no reason that benefits you. so get the 3 bar.
Okay, thanks.
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Old Jan 12, 2010 | 10:05 AM
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Originally Posted by jzz30,Jan 11 2010, 09:23 PM
if your plans of boost come no where near 2 bar, then a 4 bar is kinda useless and yes the resolution becomes kind of junk for no reason that benefits you. so get the 3 bar.
thats not really true.

all the good software allows you to change your load points. and thus if properly tuned. the car will run just as good on hondatas 4 bar, as it would on a stock map sensor.

I use hondata 4 bars.
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Old Jan 12, 2010 | 10:42 AM
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none the less its useless
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Old Jan 12, 2010 | 12:13 PM
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Originally Posted by MaseEngineering,Jan 12 2010, 02:05 PM
thats not really true.

all the good software allows you to change your load points. and thus if properly tuned. the car will run just as good on hondatas 4 bar, as it would on a stock map sensor.

I use hondata 4 bars.
yeah i was gonna say, i have a 3.5bar aem in my car, but it is set to read from -13 to +15 psi. u just set it to what you want min/max, and if you need a higher load point later, u just change it.
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Old Jan 12, 2010 | 04:15 PM
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the 4 bar will work fine. i dont understand why people say its too much resolution. its not really like running bigger injectors than needed.
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Old Jan 13, 2010 | 07:23 AM
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3 bar and 4 bar will work the same, so u dont have to upgrade in the future.
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Old Jan 13, 2010 | 09:47 AM
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[QUOTE=Ian300D,Jan 11 2010, 09:17 PM] Lots of people have ID 1000 injectors and are no wear near the limits with no issue's.
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