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well i had thought that 2 bar = 29.4 psi , so i would think a 2 bar map sensor reads 14.7 psi of boost, 14.7 bar and then the 14.7 of boost., so if thats right, a 3 bar can hold 3 times bar and that makes 44.1 psi which then translates to 29.7 psi of boost,
* correct me if im wrong *
 

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cory jordan said:
well i had thought that 2 bar = 29.4 psi , so i would think a 2 bar map sensor reads 14.7 psi of boost, 14.7 bar and then the 14.7 of boost., so if thats right, a 3 bar can hold 3 times bar and that makes 44.1 psi which then translates to 29.7 psi of boost,
* correct me if im wrong *
youre right, just a lil confusing.

A 2bar map will let the ecu see 14.7 pounds of boost. When the ecu is seeing zero vaccum and zero boost it is at atmospheric pressure which is 14.7 psi at sea level. So take the capacity of the map sensor which is 2bar or 29.4 psi and subtract atmospheric pressure from it, which is 14.7 psi and you get 14.7 psi of readable boost.. See where im goin?

The stock honda map is 1.7 bar. So its total capacity is 24.99 psi. Minus 14.7 and you get 12.49. However due to its design it stops reading at about 11.

If you were to do this for the 3bar...you get 44.1 psi total capacity, subtract atmospheric pressure 14.7 and get 29.4psi. So The ecu would then be able to see up to 29.4 pounds of boost.
 

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so if a stock map sensor reads to nearly 11 would you have to replace it on a low boost set up like 7-8 psi??

jsut for the noobs?
 

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is it gonna be a daily driver?
 

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sweet keep us informed on how she is and good luck
 
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