Boost leak?

[GSTSpyderBoost]

I don't know if I have a boost leak or it just how DSM car are suppose to be. When Iam in 1st or 2nd gear and Iam flooring it, I notice on my Greddy Boost gauge that it goes to 1 than it start to fall off 10 .6 - .7 even though the pedal is all the way in. But in 3rd, 4th and 5th, the boost hold at 1 and doesn't fall off. Anyone experience this with their car?

 

[blackGSX2g]

I would assume that you are still using the t25 turbo. The t25 can't keep up the flow at higher RPMs to feed the engine and still maintain boost. My guess is its just running out of steam in the low gears. Upgrade to a bigger one!

 

[GSTSpyderBoost]

yea the turbo is stock. So it suppose to be like that? Thanks for the info..thought i had a boost leak.