My Project has started...

[Rasteirinho]

So, time to tune the engine on the dyno and install the velocity stacks.

I bought 100mm velocity stacks and a Pipercross adapter plate from SQ Engineering (Australia)
The look is fabulous



The filter came from UK



Installed on the car without filter



with filter



very close to the washer tank



A small breather filter was used to filter the air entering to the ISCV, the location is provisory



With original airbox and no tune, the engine measured 158hp (VVT on from 4000 rpm to rev limit).

Then i installed the velocity stacks and filter and turned off the VVT and the power went up to 165hp
Using two runs, one with the VVT always ON and other with VVT always OFF, I concluded that the VVT should be turned off after ~7000 rpm and should went ON from ~3000 rpm (or even lower rpm).

After some A/F tune i've ended up with 167hp and 146 N.m (i'm a bit disapointed with the torque values on the paper but on the road the car is very good).
The rev limit is set at 8100 rpm but i think can go a little bit higher.

Now, i think i will try to turn ON the VVT when TPS is higher than 30% and rpm is lower than 7000 rpm.

The best thing about going to velocity stacks is the sound, additional 50hp gain.