Just thought this might be interesting for a few people out there: the MLR held a dyno day in the UK over the weekend and over 30 Evos were dyno'd providing a great comparative basis.

I have an Evo IV running a Evo IX 20G-6 and a friend of mine has a very similar set up - i.e same ECU, same mapper, same Cams, same pump gas etc... only difference is he is running a 2.3stroker and AMS GT35R, oh an he is running more boost, Im running about 1.65bar peak on the 20G and he is running 2.0bar I believe.

Check out the two dyno prints - done on the same dyno only about 20mins apart (Sorry I would overlay but arent that technically minded). The two set ups essentially provide the same power and torque curves under 4000rpm. Even the spool seems to be the same, however the GT35R and stroker out perform in every way after 4000rpm.

Make up your own conclusions BUT PLEASE NOTE: (1) Im not after some wise crack about the 20G-6, its been beaten to death on this forum so dont even go there (2) UK Dyno figures are not comparative to US dyno numbers, so 400hp atw in the UK is not the same as 400hp atw in the US - dont debate, its a fact, hence no wise cracks about the numbers being $hite.

My conclusion, simple: AMS GT35R kit already ordered...just need to build the stroker.

 

Did you honestly think a 20G-6 was in any way comparable to a built 2.3L with any upgrade; much less a GT35r that's running tons more boost? Don't even see how this is news personally.

Now I know you mentioned the dynoplots aren't comparable to US. But both look pretty haneously low under 3500rpm's to me. Like a severe lack of both hp and torque - do each drive like that?

 

I guess the point of the post is that many people see the Stroker/GT35r as an extreme street tune, but on this comparison its really no different to a near stock turbo under 4000rpm but with added mid and top end - you can have you cake and eat it too.

On the road the 20G is very streetable, plenty of "go" under 4000rpm.

 

The gt35 seems to be outspooling the evo9 20g. I know it has a stroker but that turbo is huge compared to the 20g.

 

A lot of people go stright to the GT3R, but I would like to see how a IX20G compares to a 2.0 (or 2.1/2.2L) with a GT30R.

Even still, I would think a 2.3L/GT35R would own all and the outcome of his comparison is no suprise.