hey every1



Okay this is my problem. Im getting a 8-5-3 boost pattern. Before i bought the car, i had the turbos looked @ by a local rx-7 guy and he said they checked out okay. Recently i had a Mazduh tech look over the vaccuum lines and he said all were attached. I lose boost right before the transition and it keeps falling off until redline. Any thoughts on whats goin on? My original thoughts were it might be a faulty solenoid because the secondary turbo is not opening up and i dont hear the "whoosh" of either turbo after 4k.

plmk if youve got ne ideas about this.

Thanx,

Zach

 

so does the second turbo work? if it does then maybe you have plugged pre cat.



mike

 

a clogged pre-cat can totally negate ur secondary turbo? I thought it would just drop ur top-end boost from 10psi to something like 8 because of backpressure....

 

if you dont get enough boost on the primary it wont transition. it needs about 5-6psi



mike

 

I ma thinking vacum leak but that is the only place I have ever had any problems out of the stock setup. You could always go through and check each solonoid one at a time.

 

Did you check the lines between the y pipe and the charge relief vavle. The large 5/8 black hose? It's a thought.

 

check the coupler between the y pipe and the IC piping...thats what caused my massive boost leak

 

Did you get it figured out?

 

Im making 8psi on the primary so it's got plenty to go into transition. I'm thinking it has to be a solenoid and not the piping or couplers because i dont even hear the secondary spooling. BTW, whats the name of the solenoid that opens up the secondary? CRV?



Zach

 

sounds like somebody needs to go non-seq to get rid of these problems

Plus its easier to trouble shot non-seq...



Josh