ok fellas.
ive used 4 of marks controllers.. 2 holes and 2 non holes.. on a GTR S14 and GTT with NO dramas what so ever..
untill this morning when i put one on my 180sx.. only occassionally it spikes..
boost is set to 6psi.. first gear is normally stead might spike to 10psi.. 2nd gear normally spikes to 10+ and 3rd gear ive seen it spike to 15psi..
on the hhighway build boost in 5th it wont spike. it will mostly only spike after changing gears..
this has really got me..
i purchased this controller a few months back with my first shipment from mark and its been sitting on the table outside for 3 or so months so i might check the insides of it tomorrow.. had very limited issues with the standard solenoid.. it would go to 10.5 and fall to 9ish.. but seeing a 15pound spike is quite scary.. esspecially when the can is on closed loop mode lol...
so ill post up what i find..