Hey guys whats up just a quick qeastion wanting to go more boost on my GSR currently running a stock map sensor at 10lbs on a built bottom end. I running uberdata currently at the moment and my buddy has tuned with 3 bar before and something isn't right with his setup and its just a B***H to work with so he recomended that i get a 2.5 were can i find one ........JOSH

 

yo josh, Motorola 2.5 bar map owns you!

digikey.com part # MPX4250AP-ND $19.00

there you go, i new i had the part number somewhere. let me know when you get it.

 

will that hook right up or is it kinda difficult to do will i have to buy a kit to put it in or no

 

You will have to wire it in but it looks to be pretty easy.

 

I tried to use a 2 bar on a customer car with uberdata and the car would randomly just go into limp mode. I put a 3 bar on it, and it never happened again. BTW, the 2 bar map sensor was in working order because it came off a car using the 2 bar.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by evosol &raquo;</TD></TR><TR><TD CLASS="quote">yo josh, Motorola 2.5 bar map owns you!

digikey.com part # MPX4250AP-ND $19.00

there you go, i new i had the part number somewhere. let me know when you get it.</TD></TR></TABLE>

Do you have any pictures of this map sensor..and is there anything i need to know about it? Also, does it just bolt right up like the oem one?

 

Not all map sensors are created equal. The problem with the GM 3bar map in uberdata is because it doesn't have a linear voltage when it reads vacuum, meaning it idles funny and runs rich (or lean, can't remember, site is down).

Unless someone has used a partiular map sensor with uberdata before, I'd be careful with it.

 

my understanding is that the motorola 2.5bar map sensor is fully functional with versions 1.7 and 1.8.

 

im using a gm 3bar w/ uberdata. idle is not easy to tune out. it hunts a lot. decel value and tip in suck ***. i've tried a million things, yet to no avail.

i going back to stock 1bar once the new motor and big turbo go in this weekend. i have NEVER had a problem with the 1bar sensor

 

whats the most that you can boost on the stock 1bar sensor?

 

You mean the stock 1.75 BAR map??? The most you can see on the sock map sensor is 11.75 psig or .75 BAR.

 

So is the vac portion linear on the Moto 2.5 bar? I have had very little luck getting a 3 bar to run correctly so I would love to try an alternative.

 

subscribe cuz ie been trying to git r done

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Bailhatch &raquo;</TD></TR><TR><TD CLASS="quote"> I have had very little luck getting a 3 bar to run correctly so I would love to try an alternative.</TD></TR></TABLE>

That is what I have been hearing...is anyone having luck with the 3 BAR and any of the free software (uber, crome or turboedit)???

 

Ya most people do. The weird thing is that I have 0 problems tuning the 1.75 bar and have done quite a few cars that run great.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Bailhatch &raquo;</TD></TR><TR><TD CLASS="quote">Ya most people do. The weird thing is that I have 0 problems tuning the 1.75 bar and have done quite a few cars that run great.</TD></TR></TABLE>

Yeah, we haven't had any problems tuning the 1.75 BAR either...No sucess with the 3 BAR cars though.

 

For those of you having trouble w/ the 3Bar's in Uberdata, Are you using v1.7 or 1.8? And if so, Are you setting the Fuel cut value to 7-9 insted of the stock 24? I had trouble getting the 3bar to idle until I started adjusting the fuel cut value. Now that I have adjusted it the car idles perfectly.

Phil

 

well i'm told buy xenocron that a lot of the turboEdit guys already do run the motorola 2.5 bar map sensor no prob. i also read on Uber site and HMT that 2.5 bar works for 1.7 and 1.8 Uber. I'll let you guys know when Josh gets it, and i install it.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by evosol &raquo;</TD></TR><TR><TD CLASS="quote">well i'm told buy xenocron that a lot of the turboEdit guys already do run the motorola 2.5 bar map sensor no prob. i also read on Uber site and HMT that 2.5 bar works for 1.7 and 1.8 Uber. I'll let you guys know when Josh gets it, and i install it. </TD></TR></TABLE>

I have first hand experience (except w/ the 3.5 BAR) that every MAP sensor (OE,2,2.5 and 3) works w/ UD. It just takes some fenagling

Phil

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by evosol &raquo;</TD></TR><TR><TD CLASS="quote">yo josh, Motorola 2.5 bar map owns you!

digikey.com part # MPX4250AP-ND $19.00

there you go, i new i had the part number somewhere. let me know when you get it.</TD></TR></TABLE>

I ordered this map sensor a few days ago. Hopefully it all works out with Uber. I'll post back my results.

 

let me know how the moto 2.5 is. Im considering ordering one.

 

Just got that 2.5 bar map looking like we might tune monday or tuesday will see how it goes.. Looks pretty small should work though. They had fast shipping
let you guys know how it works out.

 

i should be fine with my stock one for 8psi on h22a then right? after i build the motor i'm gunna up the boost to about 15psi, see how that works out.
daniel

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by RudeLude &raquo;</TD></TR><TR><TD CLASS="quote">i should be fine with my stock one for 8psi on h22a then right? after i build the motor i'm gunna up the boost to about 15psi, see how that works out.
daniel</TD></TR></TABLE>

Yes, that is right. The stock MAP sensor will be fine for anything less than 11.75 lbs of boost.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by hondaguyef &raquo;</TD></TR><TR><TD CLASS="quote">For those of you having trouble w/ the 3Bar's in Uberdata, Are you using v1.7 or 1.8? And if so, Are you setting the Fuel cut value to 7-9 insted of the stock 24? I had trouble getting the 3bar to idle until I started adjusting the fuel cut value. Now that I have adjusted it the car idles perfectly.

Phil</TD></TR></TABLE>

I have never tried that. Next time I will. what exactly does that setting change?