HomemadeTurbo - DIY Turbo Forum
Page 2 of 3
1
2
3
Show 40 post(s) from this thread on one page

HomemadeTurbo - DIY Turbo Forum (https://www.homemadeturbo.com/)
-   Engine Management (https://www.homemadeturbo.com/engine-management-10/)
-   -   can a boost gauge go bad???? (https://www.homemadeturbo.com/engine-management-10/can-boost-gauge-go-bad-13990/)

bambooseven 01-09-2004 03:40 AM
Re:can a boost gauge go bad????
 
the different pressure settings are just what units you want the MAP to be displayed as. use bar, it's easily convertable to PSI with the above formula

slammin86 01-09-2004 06:20 AM
Re:can a boost gauge go bad????
 
but when it goes to the positive side, it says cchg or something like that....is that the same as bar?

TurboEF9 01-09-2004 09:42 AM
Re:can a boost gauge go bad????
 
No... change your settings. :P

Someone really has your V-AFC all wacked out.

slammin86 01-09-2004 10:10 AM
Re:can a boost gauge go bad????
 
Originally Posted by TurboEF9
No... change your settings. :P

Someone really has your V-AFC all wacked out.
What should i change it to?

TurboEF9 01-09-2004 11:03 AM
Re:can a boost gauge go bad????
 
I'm looking over the manual and it doesn't look like you can. Weird, I always thought it was in Bar, never really paid attention I guess, dumb on my part.

Anyway, though, try this:

Multiply by 0.98067 which yeilds Bar, then multiply that by 14.5 which yeilds psi.

So your formula is: psi = (x * 98067) * 14.5

Still doens't seem to help you, but does ring accurate for my old V-AFC setup. On a stock internally wastegated 14b (TD05H), I would get .562 on my V-AFC pressure gauge. Run this through the formula and you get, 7.99 psi! Almost dead on for 8psi, which is what the internal wastegate is set for...

I'm still not sure why you're not coming out which more psi. Maybe there is a hardware problem.

bambooseven 01-09-2004 02:43 PM
Re:can a boost gauge go bad????
 
mine reads in bar, there are three different sttings, CM mercury (CCHG), Bar, and something else i can't remember. why they didn't put PSI in there I could never tell you. go into the settings menu and change the pressure setting to bar.

bobski 01-10-2004 12:01 AM
Re:can a boost gauge go bad????
 
Originally Posted by TurboEF9
Multiply by 0.98067 which yeilds Bar, then multiply that by 14.5 which yeilds psi.

So your formula is: psi = (x * 98067) * 14.5
hate to say it, but i'm pretty sure atmospheric pressure is 14.7 psi. might as well use the right figure if you're going to mutiply by .98067... and no, i'm not thinking of stoichiometric air/fuel ratio, despite it being the same number.

slammin86 01-10-2004 01:39 AM
Re:can a boost gauge go bad????
 
Originally Posted by bambooseven
mine reads in bar, there are three different sttings, CM mercury (CCHG), Bar, and something else i can't remember. why they didn't put PSI in there I could never tell you. go into the settings menu and change the pressure setting to bar.
what is the setting for bar?

slammin86 01-10-2004 01:47 AM
Re:can a boost gauge go bad????
 
-760mmHg ~ 0mmHg

-770mmHg ~ +1.0kg/cm^2

-770mmHg ~ +2.0kg/cm^2

Those are the 3 options, which do i need?

bambooseven 01-10-2004 05:51 AM
Re:can a boost gauge go bad????
 
-770mmHg ~ +1.0kg/cm^2


All times are GMT -5. The time now is 02:18 PM.
Page 2 of 3
1
2
3
Show 40 post(s) from this thread on one page


© 2024 MH Sub I, LLC dba Internet Brands