Help upgrading JDM to BPU

[Durandal]

Ok so now I'm sitting with the option of going with

Greddy BCC
HKS Speed Defender
Aftermarker electronic boost controller

or

MAP ECU-2

Since my car is JDM and comes with a MAP sensor instead of MAF, it becomes a lot easier to install a MAP ECU-2

With either setup I am going to put a Greddy electronic boost gauge where the OEM clock is and replace the OEM 180km Speedo with a TRD 320km one.

My biggest concern with going with a speed cut defender is that it tricks the ECU into thinking that you aren't going over limited speed where as the other method, the ECU knows how fast you are going and doesn't care.

Does anyone have any comments with which setup to go with.

[pwpanas]

Originally Posted by Durandal

Ok so now I'm sitting with the option of going with

Greddy BCC
HKS Speed Defender
Aftermarker electronic boost controller

or

MAP ECU-2

Since my car is JDM and comes with a MAP sensor instead of MAF, it becomes a lot easier to install a MAP ECU-2

With either setup I am going to put a Greddy electronic boost gauge where the OEM clock is and replace the OEM 180km Speedo with a TRD 320km one.

My biggest concern with going with a speed cut defender is that it tricks the ECU into thinking that you aren't going over limited speed where as the other method, the ECU knows how fast you are going and doesn't care.

Does anyone have any comments with which setup to go with.

With the US-spec, pulling the trac fuse also elminates speed cut. Unfortunately I don't have personal, first-hand experience using the HKS speed defender. There's a bit more info on this topic here:
http://mkiv.supras.org.nz/techo.htm#SPEED_LIMITER

[RZ-rix]

Hiyas I also have a JDM 94 Supra , my recent mods are full 4inch custom exhaust , TRD speedo , c's short shifter , open air filter , race seats, aem tru boost controller , aem air fuel wide band gauge, K-sport 36way adj-coilovers.

Havent been able to install the AEM Tru boost controller since I don't know how to.

Supra runs very strong and fast.

As for the speed limiter , Ive just unpluged the trac fuse. works well , although you will get the trac light blinking all the time..

Let me know what brakes you decide on , I'm interested in upgrading mine to a big brake package, but I'm not sure if I'l have to upgrade the master also..

[Durandal]

I installed a Greddy Emanage Ultimate and used it to remove the speed limiter and the boost cut. It also gave me a good platform to tune with if I want to add in some custom maps. I have a Tanabe 3" downpipe which I haven't installed yet. A Innovate Motorsports wideband which I haven't installed yet and a blitz SD boost meter which is installed and works great.

[RZ-rix]

Originally Posted by Durandal

I installed a Greddy Emanage Ultimate and used it to remove the speed limiter and the boost cut. It also gave me a good platform to tune with if I want to add in some custom maps. I have a Tanabe 3" downpipe which I haven't installed yet. A Innovate Motorsports wideband which I haven't installed yet and a blitz SD boost meter which is installed and works great.

Sounds great , is the Greddy Emanage Ultimate good for tuning supras with big single turbo upgrades also??

[Durandal]

I don't know, but you could probably find out on the euro supra forums, it is more popular there.

[pwpanas]

Originally Posted by RZ-rix

Sounds great , is the Greddy Emanage Ultimate good for tuning supras with big single turbo upgrades also??

It'll work, best suited for mid-size (67mm-72mm) turbo upgrades, not big ones (76mm-90mm).

[RZ-rix]

Spoke with my tuner today , I mentioned buying the Greddy Emanage piggy back, and he tolld me its not worth it , mentioned some issues with the way piggy backs actually work , and to just buy a stand allone AEM for tuning . So I think I'l save up and pick up a AEM .