OKay. Why does the Silvia's boost creep up to 11-12 psi at WOT?

Doesn't the internal wastegaste NOT let gases through after 7psi?

is that spiking or boost creep?

Also, is the T25 in the sylvia just a normal T3 flange. If it is I got a free turbo. )

Also, does running a boost gauge and the BOV vacume line off the same spot affect the boost gauge reading any?

Sorry. I'm still kinda a turbonoooob.

EDIT: yes, i know. read maximum boost. it's on its way to the bookstore....last month apparently......uhh yea.

The S13 turbo has a standard T25 flange and so does the S14 and S15. Now for the other questions, you should visit a nissan forum. Plus the s13 turbo is not all that , not a big difference for the 2g 4g63 T-25. You should get your hands on a s14 turbo,it is a T-28 Ball Bearing turbo. If you really have money, then go with the S15 turbo.
Quick spool!! :afro

Yea we piked up a t28 from an s14 last week. its for the silvia and the t25 is for the eclipse.