Subaru Grimmspeed 3 port ebcs! What can better boost control do for you?
Welcome to #modmonday! Where we take a look at an installed part on one of my two Subarus. This week we take our initial look at @grimmspeed's 3 port ebc on my 2005 STi, which has been installed for the last month.
Here we go! Nice nickel fittings that will last as long if not longer than your car.
Old trusty is ready to hit the trail.
When modifying cars the old adage that if it isn't broken don't fix it never really holds water.. We are here to eek out every bit of performance we can and with that mindset and that leads us to our Grimmspeed 3 port Ebcs replacing the factory boost controller. While the oem won't likely fail on your, it certainly won't build boost quite like the Grimmspeed unit.
Oem unit has served me well but it’s time for an upgrade. If you have a pro tune coming up it might be a good time to do this.
What comes in the box.. You will find your Gs ebcs with factory wiring connector alongside a good length of vacuum hose to install it with ease. You can find the installation instructions over on Grimmspeed's website. You will find installation quite easy as it takes over the factory mount location and uses the factory connector to plug right in.
Everything you need and nothing you don’t.
Now why do you want to upgrade your oem unit? This unit will allow for better control over boost for a much more dialed in tune and can also decrease spool time by up to 10%. Which means more time to be in boost… can you ever have enough time in boost? I don’t think so.
My install went very quick and smooth with the online guide. With just a few ratchets, sockets, pliers and cutting tool your install will be completed and ready to run. This is one of those parts that a tune is necessary after install to take advantage of all improvements.
Grimmspeed Ebcs finding it’s new home where the old oem unit lived.
I am currently running a base tune as my new motor and turbo are being broken in so pushing the car to the limit has yet to be done. After a few miles I did notice just how much quicker it builds boost even on part throttle and below 3k, which for the larger IHI VF48 turbo is quite impressive in my opinion. Coming from the Vf39 a VF48 has a noticeably slower spool up.
The slightly larger VF48 has slower spool up than the older VF turbos but the Grimmspeed Ebcs has made it virtually non-existant.
Stay tuned as we put more miles on the car and find out how it performs when fully tuned up and the engine and turbo are pushed hard.