Is this normal. I just installed by defi bf boost guage and I am only seeing 14 psi on first gear. I only get to see higher boost (19.5) on every gear after that? Anyone care to elaborate?

 

at wat rpm are you getting 14psi?

 

Put in a MBC, all the difference in the world in all gears.

 

yeah i agree with ev8sive, boost controller upgrade will stabilize the psi and keep it from tapering off at higher rpms too.. i'm just concerned about the 14 psi drop, maybe you are referring to the tapering off

 

It isn't tapering off. Its just that is the most boost I can get it too even at WOT on first gear. It was only hitting 1 bar. Once I pull into second at WOT it hits 1.34 bar (19.5) and then tapers off to 1.2.

 

Make sure all the lines are properly connected and tight. Keep in mind that you will never hit your desired boost or max boost on 1st gear!

 

:thumbsup: Thanks Jimbo... That clarifies things really well.

 

thats interesting jimbo.. i always thought u should get close to your set psi on 1st gear... i mean 14 psi for 19? hmm

 

yeah, jimbo is right, that's why most dyno pulls for turbo car is 4th gear and for N/A cars is 3rd

 

I can hit 20 psi in my car in first......Hallman MBC with the heavy spring in.