I have the JDM Aristo GTE swap with the BPU mods and I occasionally hit boost cut. I know previously everyone used the Greddy Boost Cut Controller from the MR2 (SW20) but that is terribly hard to come by now. I was searching for an alternative and came across this https://twosrus.com/catalog/product_...roducts_id=283
I was wondering if anyone knew if this would work or of any other replacements. Thanks

 

For $37 why not try it?

 

Give it a try and let us know.

 

I went ahead and purchased it I seriously believe it will work. I contacted the company and they stated it is identical to the Greddy BCC. I also found an old diagram ( Supra BCC Install ) on installing the Greddy onto a Supra and its the same color coded wires. Once I receive I'll keep you guys posted.

 

So come to find out this will not work as it is only 3 wires vs 4 wires needed like on the original Greddy. I did find another alternative that was actually reverse engineered from the Greddy BCC itself. SpeedForSale Boost Cut Control Device

 

What was the 4th wire for?

 

Here are the directions. I think the other link is dead.
DIY Fix: How to Install a Greddy Boost Cut Controller (BCC) on a 2JZ-GTE with VVT-i (Lexus GS300/Toyota Aristo)

 

On 2j's you just use the HKS FCD no mods no hassle, or for a vvti just disconnect the vacuum line to the map sensor and plug it (leave the electrical connector plugged in) as the vvti uses maf/maf for loading not maf/map.

 

Thank you for confirming, I've recently heard about the vvti trick, however, I've also read we must also do the 12v fuel pump mod too.