Hi, I just got an FD3S it has a bailey dump valve fitted but only to one of the turbo's. The other turbo has the standard recirculating dump valve. Are both waste pipes supposed to go into a Y juction and then a single dump valve or is it supposed to have 2 dump valves.

I am assuming that one dump valve on one turbo is wrong ?

 

There are two turbos, but only one ABV (Air Bypass Valve also known as BOV or Dump Valve).

The other valve is the CRV (Charge Relief Valve). While it is similar to the stock ABV, it's function is not the same. Here is a good overview of the stock RX-7 sequential system:

http://www.autosportracetech.com/RX-...erOverview.htm

 

AAhhhhhh, I see.

Thanks for that, thats one less thing to do to the car to get it up to scratch.

Cheers for the reply.