Detonation (i Think?)

[steve12]

Hi All,

My car is all stock besides the bypass of the boost control solenoid which limits the boost to 5 PSI under 4500rpm. Anyway I think I am getting detonation at full throttle when engine reaches 3000rpm and the boost gauge gets close to 700mmHG. The car loses complete power for a split second. It seems to only happen as engine is warming up. Would this be detonation or something else?

Only started happening after doing this mod.

[Moodles2]

Hi All,

My car is all stock besides the bypass of the boost control solenoid which limits the boost to 5 PSI under 4500rpm. Anyway I think I am getting detonation at full throttle when engine reaches 3000rpm and the boost gauge gets close to 700mmHG. The car loses complete power for a split second. It seems to only happen as engine is warming up. Would this be detonation or something else?

Only started happening after doing this mod.

~13.2psi (700mmHG) through a cold engine, there's the problem. Nissan ECUs tend to try to protect the engine while warming up.

[steve12]

I didn't connect power to the soleniod as suggested, I just removed the soleniod valve altogether (connected the 2 hose that got to it together). Would this cause the issue??