rocko5845

Im still kind of new to the turbo world, so please bare with me. Ive been told I need a new MAP to run more than 10psi boost on my D15B7. Ive also been told I can just bypass the MAP. Im not sure bypassing is the way to go, so Im asking everyone what they suggest I do? Ive also heard of the 3bar and the 4bar Map. Which is prefered?

Sorry if these are idiotic questions, I just want to get the most performance I can and not blow up my motor.

093turbo16

iTrader: (2)

You should probably not listen to the person who told you to "bypass the map sensor"

In a speed density car, which your honda is, the map sensor is absolutely critical in the calculation of fuel/ignition for the motor.

You will need a map sensor to run the car safely above 10psi. And I will tell you right now there will be people come on here and tell you that "OH, I have ran 14psi on a stock map sensor.. no problems".. I would suggest not listening to them either.

Basically this is how it works, the stock map sensor outputs a max voltage of somewhere around 4.78 volts or so (0-5v sensor). Which equates to around 10.2 - 10.7 psi, depending on altitude. At this voltage the ecu will read off the last boost column in the map, which happens to be 10.7psi on most ROM editors.

So at 10.2-10.7 psi is the absolute max that the sensor can read, this means that the highest a boost cut can be set is 10.2-10.7 psi.

I could get into some more detail, but yea just go with a Omni 3/4 bar map sensor if you want a "plug n play" map sensor that fits in the stock location and does not require any rewiring. Or if you don't want to spend that much and are confident wiring it up you can go with a cheaper GM 3 bar.

kyden

3 bar, 4 bar, makes no difference really. as long as you don't bypass it.

rocko5845

Thanks a lot, I knew bypassing didnt sound right, just thought Id ask. Any clue off hand where to get one at a good price? Also, when I get one, is it ok to put it on befor I drive it to my tuner, or should I wait until I get there? Thanks again

zedron

iTrader: (1)

Get a 3 bar. It will be easier for your tuner to tune it correctly. You will have to wait till you get to your tuner before you put it on because the car will not run correctly before the tune with it.

darkvader0

I'm sure by bypassing he meant that another route you can go is the old school FMU based fuel enrichment. In that case you do need to "bypass" the MAP.

If you decide to go the preferred way and use an electronic method to fuel your engine, then yes 10psi is the highest the stock MAP sensor can read.

So just saying that whoever originally gave you the advice knew what they were talking about.

Turbo-LS

iTrader: (4)

Omni power 4 bar FTW. mounts in stock location and works flawlessly. but like stated above dont install till get to tuner

cleansi

you can pick up a omni power 3 bar for bout 95 shipped ebay or H-T market place sponser stores allways has them .

rocko5845

thank you for the input.