Buy new FMIC, sell old TMIC, profit.

download autronic ecu software from autronics web site. The program will run without ecu connected.

My v5/6 wrx runs autronic smd plug n play ecu and when i upgraded to injector dynamics 1000cc i checked the software to make sure it was tested.

download ecu software. install on computer. run smc or sm4 program. open cal file. goto M1 menu.

you will find injector menu which will have list of injectors you can select and also have user defined settings

There is not an awful lot of difference between the 20G and a 3071. The 71 has a 3mm bigger compressor wheel. My gut feeling is that with a 2.1 litre that you would get better response by going for a TD05-20G or a GT2871.

Cobb has had great results on a TD05-20G on the 257. Especially once you run e85 and higher pressure ratios.

[QUOTE=Kremer930;838210]There is not an awful lot of difference between the 20G and a 3071. The 71 has a 3mm bigger compressor wheel. My gut feeling is that with a 2.1 litre that you would get better response by going for a TD05-20G or a GT2871.

Cobb has had great results on a TD05-20G on the 257. Especially once you run e85 and higher pressure ratios.[/QUOTE]

The other thing to consider is ballbearing on the garrett and journal on the mitso. This makes a difference.

I had a blouch billet wheel td05. And replaced it with a larger blouch billet wheel dom 2.5 and it spoooled earlier and made more top end at lower boost. Id expect a similar result comparing a 20g to a 3071.

The OP sounds like he wants a pretty powerful setup. What about 3076 even. He want 370whp .


EDIT. Forget the bb vs jb comment. Just realised OP said 20g XTR not XT.

For reference my GC8 2 door weighed 1231kgs and ran 10.9


* Edited just looked back at old dyno graphs from the time 486whp it took for mine to run 10.90

High tens could be hard RS flash has one of the fastest subies in wa I believe running a 10.4 last month with 580whp that car once again won the wrx vs evo battle at the drags high 11s or low 12 with that sort of horsepower your quoting but as they say the strip never lies. Keep the updates on the engine build coming v6 STI is one of my favourite looking suby good luck with the build.

WHS ^

You really should reconsider using a top mount, and the small turbo like your considering. What your planning will be a very quick street car but the major limiting factor will top mount and turbo, If you want to run 10's you'll need at least a gtx3076 size turbo.

Also as far as a matching package goes, if your dead set on using a top mount and small turbo, using 272 cam's isn't a good fit, 264's or 8's would give much more usable power and torque.

if your after front mount intercoolers I have 2, bar and plate, the other a tube an fin, and a set of ID 1300cc near new, they where to small for my use.

[QUOTE=Rslib72;838247]High tens could be hard RS flash has one of the fastest subies in wa I believe running a 10.4 last month with 580whp that car once again won the wrx vs evo battle at the drags high 11s or low 12 with that sort of horsepower your quoting but as they say the strip never lies. Keep the updates on the engine build coming v6 STI is one of my favourite looking suby good luck with the build.[/QUOTE]


I have seen a gc8 pull 11.98 at 116mph with 290awhp.
Also a gc8 with 350whp run 11.5 something so i thought 370 plus would get me close.

Definitely want to keep top mount as the police just seem (from my experience) hassle cars with front mounts.

I may have to live with a mid to high 11 second car because i definitly dont want the attention.

The car looks stock as a rock. Even under the bonnet