The ecu

the computer. so if you have a factory ECU, few companies such as greddy, hks, knighsports makes a little fuel cut defencer box that you can hook up to the ECU with its pre-tapped plug extension.

if you have a PFC, or aftermarket ECU, you can set your own fuel cut limit, or none at all

A fuel-cut defender is quite possibly the dumbest mod to run on an FD. Followed shortly thereafter by running an ecu without overboost fuel-cut.

Anyone have experience with these? A manual boost controller is like the most basic part ever... even if its not a name brand... how could they really mess it up? These ones actually look halfway decent compared to one I would make with home depot stuff. Also Where do you guys buy your springs and ceramic balls?

http://cgi.ebay.com/ebaymotors/High-...76606168QQrdZ1
http://cgi.ebay.com/ebaymotors/BLUE-...75321285QQrdZ1
http://cgi.ebay.com/ebaymotors/Black...79060566QQrdZ1

I don't understand why people just don't use EBCs. They're pretty inexpensive used, they're easy to install, and I've never heard of one failing......

I have used the Blitz DSBC spec-r (the dual solenoid one) on my 3000GT VR-4. It was great and easy to use. By contrast, the Greddy Profec-A on my current car (93 r-1) is a complete piece of poop. I've gotten another Blitz DSBC for the rx7 :)

not to play the devil's advocate...but a good MBC, is cheaper, easier to install, and has less failure points ;)

McMaster-Carr:

https://www.rx7club.com/showpost.php...7&postcount=15

Dave

If they have less failure points, then why do they seem to fail more often than EBCs? :buttslay: :clit: :tightass: :asthanos: :bigok:

^notice I said..."good"

and those are some filthy smiles

That's the key. Anything that's poorly-made or done is a likely failure point.

Dave

I've been told by a reputable tuner over here in the uk that a boost controller is not needed because the power fc controls boost just fine. Anyone care to elaborate?

Your tuner must not have much experience. This topic has been covered countless times. The PFC works as a boost controller for some people, not for others. It didn't work for me so I bought a pair of MBCs.