bccd for 2jzgte j-spec engine

[jza800]

if i buy this one

 

https://www.speedforsale.com/supraparts/speed-for-sale-s4s-boost-cut-control-device-bccd-p-1345.html

 

 

then it is only if i would go over 1.2 bar, that i need a E-Manage, AEM FIC, or similar???

 

is that correct understud??

[Guest aspire]

you will probably get a torrent of pay your £10 membership replies matey..... the info here is terrific, well worth a tenner for 12 months,

[listy]

If you pay the membership, you will have access to the For Sale section (and others) where FCD's/BCC's come up for sale around £40.

You would be much better off buying an HKS or Thor version though as they are tried and tested.

[jza800]

i now. but that was not my question

[listy]

i now. but that was not my question

 

if i buy this one

 

https://www.speedforsale.com/supraparts/speed-for-sale-s4s-boost-cut-control-device-bccd-p-1345.html

 

I cannot personally say if that one is any good, as I don't know anyone who uses one. I can however recommend an HKS FCD, or a Thor BCC.

 

then it is only if i would go over 1.2 bar, that i need a E-Manage, AEM FIC, or similar???

 

is that correct understud??

 

The Boost Cut Controller/Fuel Cut Defender, does not limit the boost pressure.

The stock ECU has a safety feature known as "Boost/Fuel Cut". It stops too much fuel going into the system, preventing any possible damage (or that is how I see it).

A FCD/BCC tricks the ECU into thinking it has not reached that point, so the ECU still allows more fuel into the system.

 

If you want to control the boost, you need a Boost Controller, not a BCC/FCD.

Also, 1.2 bar is the recognised "Safe Limit" of the standard turbos. If you push it to 1.3 bar or above, you risk damaging the turbos.

 

Was that more helpful?

[jza800]

i have a boost controller, i just what to go above 1 bar and max 1.2 bar, as it goes in fuel cut now.. many recomman the bcc, but you can not buy the bcc anymore, the one i have linked to, should replace the greddy bcc, just a Little confused about this:

 

 

•NOTE: If you are installing this on a JDM Supra or other speed density based ECU which does NOT use a Mass Air Flow meter from the factory, then you will need some sort of piggyback fuel injector controller such as E-Manage, AEM FIC, or similar, otherwise when this BCCD caps the voltage of the MAP sensor the stock ECU will not know the true manifold pressure reading, thus causing problems.

 

 

that why i am asking, can i run this whitout any problem to max 1.2 bar, without E-Manage, AEM FIC, or similar???

[listy]

In answer to your latest question......I do not know. The HKS and Thor versions (as far as I am aware) work on both UK Spec and J Spec supras, facelift or prefacelift.

 

I'm afraid someone with more knowledge will need to answer that question.

[Nic]

•NOTE: If you are installing this on a JDM Supra or other speed density based ECU which does NOT use a Mass Air Flow meter from the factory, then you will need some sort of piggyback fuel injector controller such as E-Manage, AEM FIC, or similar, otherwise when this BCCD caps the voltage of the MAP sensor the stock ECU will not know the true manifold pressure reading, thus causing problems.

 

that why i am asking, can i run this whitout any problem to max 1.2 bar, without E-Manage, AEM FIC, or similar???

 

What they're basically saying - without actually saying it! - is the boost cut controller is NOT COMPATIBLE with a MAP based J-spec Supra. The comment about fitting an emanage, AEM or FIC is complete nonsense, as these would handle the fuel cut anyway.

 

Fit either a GReddy BCC or HKS FCD, do all the other BPU mods and assuming the car is in good working order, you won't need anything else to run at 1.2bar.

 

Click here, this will explain everything you need to know -> BPU

Edited August 20, 2013 by Nic (see edit history)

[Tricky-Ricky]

No need to control fueling when going BPU, as once MAP voltage reaches the fuel cut threshold the ECU is already running the injectors at full DC anyway, so unless boost is taken over this you don't need to worry, in fact you can often take boost to 1.4bar and still have over rich fueling, not ideal but it works.

[jza800]

No need to control fueling when going BPU, as once MAP voltage reaches the fuel cut threshold the ECU is already running the injectors at full DC anyway, so unless boost is taken over this you don't need to worry, in fact you can often take boost to 1.4bar and still have over rich fueling, not ideal but it works.

 

I have a hks fcd in the car now. But i am waiting on a replacment because when i am on wot the car leans out on 12.0 on my air/fuel gauge. Thats not safe. So i hope with the new one it can goes more rich than now.

[Tricky-Ricky]

First question is what wide-band AFR gauge have you got, and is it calibrated OK? there is something not right there, std injectors will flow well over 400BHP and I haven't seen many cars that can make that BPU, I would also check fuel pressure, make sure you have no boost leaks, and there is also possibility that you may have a restricted injector.

 

PS get your membership paid, its the best £10 you will ever invest.

[jza800]

i hope not. because if i take the fcd off the car. i read 11.5 to 11.7. so i think the fuel line if fine..