Since there are 2 turbos on the car does that mean there should be 2 controllers too? Stupid question I'm sure. But since there are 2 waste gate actuators I thought maybe there should be 2 MBTS too. If only one, the boost controller hooks to the actuator on the front side of the twins right? Once again sorry if this is a stupid question.

 

Its not a stupid question , but if you did a search on using MBCs on the stock twins you would have found this thread:

https://www.rx7club.com/3rd-gen-arch...attern-178136/


Read it and your good. This forum has over 10 years worth of information...literally there is not a subject that has not been covered.

 

I did search I just didn't have any luck. Thanks for the info

 

The turbos are in one unit, with only one wastegate, and only one wastegate actuator. The top one is the wastegate actuator, the lower one of the two is the pre-spool actuator which basically bleeds a bit of boost to the second turbo to allow it to spool up before it ever comes online, so there is no dip in power as it transitions from using one turbo to both turbos.

You can put a manual boost controller on the pre-spool actuator also but it’s not required and not worth the hassle as far as im concerned. The stock size is about how you’d want it as far as im concerned.

 

Thanks man ^^^^. Appreciate that. Looks like I'll be picking one up in the near future