Boost Spike?

[Dingus]

Hi guys, my R33 is completely stock, but reading most people have said the stock holds at 7psi, then up higher goes up to ~10psi... now with mine, on the stock gauge, it goes to 3.5mmHG (~7psi by online calculators), but then up higher instead of going up a little bit more, it goes up to 7mmHG, which seems to be ~14psi. Any idea what could cause this? As the rest of the car is completely stock. It doesn't seem to be causing any issues, just running what seems to be high boost for an unmodified car.

Edited December 8, 2007 by Dingus

[dmr]

sounds like boost spike. have you got a boost tap?

Edited December 7, 2007 by dmr

[Dingus]

Nup, completely stock solenoid. Haven't paid much attention to it lately, so could be that it just randomly spiked when i took notice of it, will see how it goes tomorrow and see if it does it all the time.

[dmr]

well a boost leak will cause pressure loss, but in this case it might be vac/actuator related.

[(B1) MR_fanny]

from what i know stocker solenoid goes 5psi low and 7psi high. if you do exhaust and intake mods it will go up to 9psi-ish high by itself. maybe check all the hoses to the solenoid and actuator.

[R33 S2]

so you dont have a fmic?

[Dingus]

Nope, COMPLETELY stock. Noticed today it was about 7psi normal, 9-10psi high, so could have been that when I noticed it before it was just spiking.

[Simmo1985]

Might wanna change your title from boost leak to boost spiking. Leak is when boost goes down.