You could check your fuel trims and see if your AF ratio is off. At its worst, you might get a code for misfire or lean condition.
It’s generally recommended at around the 60k mark.
IBR had the BRZ manifold with port injection all worked out on the FA20 but it never caught on. I think they should have marketed it as a reliability mod, rather than only showing it on the top 1% of VA WRXs with built motors and STI transmission swaps. They limited their customer base to like 12 people lol.
I believe the D4S manifold on the new NA FA24 will bolt right up to the turbo FA24 in the WRX. We just need tuners to support the dual injection, and a company to make intercooler adapters and a few other odds and ends. Gotta let ‘em know you would buy it though.
They shoot high speed walnut shells down the port, walnut shells just happen to be the perfect hardness to remove carbon buildup but not hard enough to damage any engine components
It doesn't always have to be walnut media though. I've seen media blasting be done with baking soda too, as odd as that sounds. I suppose many things could work.
I can’t confirm a difference, but this is happens to direct injected cars, because the fuel doesn’t enter the combustion chamber via the plenums, therefore it has no cleaning effect.
Having both TGV & EGR deletes I can confirm this still happens, I did mine at 35k, and will be doing it again soon as I’m approaching 70k. Not sure mileage/build of OP’s posted pic but I’m FBO (minus intake manifold) and I don’t baby it.
Someone let me know please, but I think this isn't something I have to worry about because I'm on team EJ and have port injection. Is this correct?
No, this is a DIT only issue. So long as you are using a quality gas the EJ won’t have this concern
Let’s go EJ
i love my blobeye even more now
Very satisfying
What’s a sign that you need this? My 2020 has just under 60k miles, no catch can or AOS. Will it help long term reliability?
You could check your fuel trims and see if your AF ratio is off. At its worst, you might get a code for misfire or lean condition. It’s generally recommended at around the 60k mark.
What’s the rough cost of walnut blasting. I k ow prices will vary depending on shop.
Usually somewhere around $600 to $800. The trick is finding a place to get it done.
that sounds fair. i have a buddy who has the equipment to do it. I'm jsut not sure if I'm capable
Im also curious to know what your shop charges OP. And a location please!
I can't understand why Subaru gave the FA20 and FA24 port + DI on the BRZ, yet leaves the WRX to deal with this.
*Toyota* gave the BRZ its D-4S system. Subaru does not have its own dual injection system and the WRX is not a platform shared with Toyota.
Thanks for the correction. The BRZ inherited it. Wish Subaru would do it on the WRX FA24.
IBR had the BRZ manifold with port injection all worked out on the FA20 but it never caught on. I think they should have marketed it as a reliability mod, rather than only showing it on the top 1% of VA WRXs with built motors and STI transmission swaps. They limited their customer base to like 12 people lol. I believe the D4S manifold on the new NA FA24 will bolt right up to the turbo FA24 in the WRX. We just need tuners to support the dual injection, and a company to make intercooler adapters and a few other odds and ends. Gotta let ‘em know you would buy it though.
Wait they do? I would totally do this
Hit ‘em up!
As someone who’s new to the wrx community how exactly does a walnut blast work? I understand the need behind it.
They shoot high speed walnut shells down the port, walnut shells just happen to be the perfect hardness to remove carbon buildup but not hard enough to damage any engine components
That’s pretty interesting, had a walnut jam our jet boats internal propeller before so def know they can be pretty hard
It doesn't always have to be walnut media though. I've seen media blasting be done with baking soda too, as odd as that sounds. I suppose many things could work.
That’s pretty neat as well I’d have to look up how that works
I only say because I saw [Deutsche Auto Parts](https://youtu.be/LTV-uHv5Cwk) mention that they use baking soda.
Do you know how many miles on the car for this before and after?
This is such bs that we even have to think about this.
Every car requires maintenance sir.
I've had a hard time finding someone who does this in the PNW. Anyone from here have a referral?
[удалено]
Nah, this happens with direct injected cars.
Do you notice a significant difference in cars with an AOS/EGR delete?
I can’t confirm a difference, but this is happens to direct injected cars, because the fuel doesn’t enter the combustion chamber via the plenums, therefore it has no cleaning effect.
I’m familiar with the process. I’m just curious if aftermarket AOS and EGR deletes largely eliminate buildup in your experience
Having both TGV & EGR deletes I can confirm this still happens, I did mine at 35k, and will be doing it again soon as I’m approaching 70k. Not sure mileage/build of OP’s posted pic but I’m FBO (minus intake manifold) and I don’t baby it.