Hi guys....

yesterday i took the car for a ride and to my bad surprise.... there's a leaking sound coming from the engine bay!

I would say it does the same sound you hear when a wave hits the sand....

so to be more precise, the sound is coming from the driver's side (jdm rx-7) and i think it's related to the second turbo because its only when the second turbo spools that i hear the sound...

My guess is a leaking vacuum hose... I noticed a lost of boost in the last weeks... but I don't have a boost gauge yet so I can't really tell what boost im getting... oh and those vacuum hose are the OEM ones

let me know what you guys think
thank you.

 

Sounds like one of the couplers might be leaking. Judging by your post, I'd say that you aren't very experienced working on cars. Look in the Regional section for Canada and find a rotary specialist near you and have him look the car over.