out of nowhere my car is boosting way too high. I just put RC 440 injectors and a 255 fuel pump in and not its like i dont even have a wastgate... Any suggestions

 

do you have a boost controller?

 

When you say "overboost" do you mean it's spiking? Might want to try the FI Forum too.

 

ya but its not installed i have a 11lb spring and i wasnt planning on going any higher but its spiking to like 20lbs

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by FrOsTwHiTeDC4 &raquo;</TD></TR><TR><TD CLASS="quote">ya but its not installed i have a 11lb spring and i wasnt planning on going any higher but its spiking to like 20lbs</TD></TR></TABLE>

Id suggest installing it... check the spring too, so you can make sure its not messed up.

 

what else could it possibly be u think it could be frozen cuz the car was sitting for a while

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by FrOsTwHiTeDC4 &raquo;</TD></TR><TR><TD CLASS="quote">what else could it possibly be u think it could be frozen cuz the car was sitting for a while</TD></TR></TABLE>
That's highly unlikely.

 

ok any thing else beacuse im worried

 

Has the car been tuned? What type of management are you running?

 

check vac hoses make sure only one is on the wastegate not both of them. make sure everything is tight bolt wise.

 

I second the idea of checking the vacuum hoses. I have a Tial 40mm WG and a vac hose coming from the turbo housing right to the bottom port on the WG. The top port is unused. I have it setup this way until I reroute to use my boost controller when I am ready for more boost.

Also, what is the temperature where you are located? If it is ***** cold outside it causes the air to be thinner and more boost is generated even though you have a 11lb spring the colder weather fools your wastegate.

 

check your dump tube .....if its too small you can get boost creep...

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by lVlemphizStylez &raquo;</TD></TR><TR><TD CLASS="quote">check your dump tube .....if its too small you can get boost creep...</TD></TR></TABLE>

just curious, how does that happen

 

exhaust gasses are trying to leave via the dump-tube so they don't keep running the turbine, if they cant escape well freely, they are going to create more boost because they will be backed up and go to spin the turbine

 

cool thanks

 

How built is your motor?

Its spiking to somewhere near 20PSI??

I wouldn't really drive it or at least try to keep it out of boost until you get this figured out.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by numbnuts22715 &raquo;</TD></TR><TR><TD CLASS="quote">

Id suggest installing it... check the spring too, so you can make sure its not messed up.</TD></TR></TABLE>

Boost controller ain't gonna help. If it's spiking to 20psi on an 11psi spring it's gonna spike to 20psi with a boost controller. A boost controller cannot make the spring open any earlier...just make it stay closed longer.

Was it ok before and just started or has it been doing this from the time you installed the turbo? If it was ok before, it's likely your vac line. If you have had this problem from the start list your setup.