MRT attacks GT aussie spec

[EJ20H-TT]

ftp://ftp.mrtrally.com.au/Dyno-graphs/MRT-Liberty-GT-2004-std-vs-many-mods.jpg

Mods at this stage - new TMIC, CAI, Exhaust and ECU reflash

[EJ20H-TT]

ftp://ftp.mrtrally.com.au/product-data/images/std-parts/liberty-GT-turbo/MRT-Liberty-GT-turbo-TMIC-fitted.jpg

ftp://ftp.mrtrally.com.au/product-data/images/std-parts/liberty-GT-turbo/MRT-Liberty-Gt-TMIC.jpg

[EJ20H-TT]

ftp://ftp.mrtrally.com.au/product-data/images/testing-temp/GT-Liberty/GT-Liberty-testing-tuning-CAI.jpg

[EJ20H-TT]

ftp://ftp.mrtrally.com.au/product-data/images/testing-temp/GT-Liberty/GT-Liberty-testing-tuning%20(3).jpg

[axis008]

Wow, those look like some big power increases for those mods. I can't read NM and KW though.... so I don't really know :P.

[racerdave]

Gotta like those power increases.... :)

[EJ20H-TT]

Well taking a guess- Aussie spec = 180kw or 240hp

Which sounds about right

So in theory we are talking 347hp !!!

[mccorry]

And THAT is a 2.0L motor, correct? :o

[EJ20H-TT]

Correct - twin Scroll two litre

[Gumby]

Well taking a guess- Aussie spec = 180kw or 240hp

Which sounds about right

So in theory we are talking 347hp !!!

On the stock Turbo?

[EJ20H-TT]

Yep they say all they have done is

Exhaust, Pod, new TMIC and ecutek reflash.

The number i gave was ATF theory - but with a 44% improvement makes sense i guess.

[apexjapan]

That was a weak car stock! Mine was making at least 35kW more at the wheel when we started...

Cheers,

Paul Hansen

[EJ20H-TT]

Sure they can make a bigger improvement due to the crap tune it was given.

[powbmps]

Nice intercooler. It wouldn't take much to make that compatible with the US GT.

Chris S.

[agctr]

Thanks so much for the report, this car is going to be a cult classic and a sleeper at that. Im very excited by the number and by the relative low cost to do all this. Was also suprised not to see the pod cut into the side wheel arch. Also good to see the aftermarket intercooler fits nice and neat under the flushing motor kit too, makes for a nice appearance and if it didnt have MRT on it, you would really notice the difference, but would prefer the other 3 letters STi!

So if you were to put all these mods on, I suppose you would have to throw yr warranty away ?

And Paul if that is a weak car, wow yours must have some serious grunt now especially if it has 35Kw more than this at the start.

I think with ppl saying that the GT doesnt have much grunt down low, obvioulsy with this configuration and judging by the graphs, it looks like the torque is more or less straight off the bat. Looks very nice indeed and will sure surprise a lot of ppl off the line.

Things are looking up boys and we are only just getting started.
BLING BLING :o :o :o

[racerdave]

Paul... the other thing to keep in mind is that your car and the Oz car were not tested on the *same* dyno... ;)

[apexjapan]

Oh, I know that - but they are claiming that they are not increasing the boost to get their power, and if so, then their modified figures actually make sense - if the dyno runs were indeed comparable, they would be making about 245-250whp right now. Which is about the most I would expect from the other bits plus optimizing a/f ratios. If they had a 60kW gain from an actual 280hp/206kW engine - well, you would need a *significant* amount of boost for that. 266crank kW would be 361crank hp.

Twin scrolls are not *that* magical - the larger STi twinscroll on the STi engine starts running out of breath at around 360-370hp, and that's with boost turned up to 1.6kg/cm2, quite a bit above the .9 kg/cm2 that the Legacy runs as stock boost.

I'd say the 2.0-litre twin scroll can push roughly a max of 270whp at 1.0-1.1kg/cm2 of boost, with a full exhaust system, ecu, intake system upgrades. I'd look at porting the wastegate as well. 280-300whp is reachable by going up to about 1.3kg/cm2 of boost, though I'd start worrying about fueling at that point (I currently do, as a matter of fact). Wastegate porting may be mandatory at that point as well. And then there are transmission worries...

I've the luxury of a STi spec C to drive back to back, which gives me a good idea of what power is actually being made on the Legacy. And the STi starts off with much more boost than the Legacy, stock. Standard hp on the STi is around the 310 range. I didn't start getting close to standard STi acceleration till the 260whp point.

Cheers,

Paul Hansen