Theoretically yes, might need some slight modifications due to the FA24D being oriented for RWD. But it wouldn't be plug and play and definitely not something a piggy back tuner like the cobb AP could do. You'd be looking at a standalone ECU and a tuner that knows what they are doing, which you'd pretty much be a guinea pig since as far as I know it hasnt been done yet. I know a couple guys got port injection to work with the FA20 using BRZ manifold and fuel rails and Motec ECU but it costed them around 8-10k without crazy benefits but they were already max effort builds anyways.

 

I'd be running it as some type of shut down system was my original thinking with "something" in a tank so that way I wouldn't have to worry about that one. Basically on shut down it dumps into all 4 cylinder runs? Eventually they'll all close so small amounts often... I'm thinking might work? I'm dumping so much fuel already that oil dilution is not really a concern, my OCI's are changing to 2k regardless. I just need to work out what can be a solvent and still mostly evaporate before it ends up in my engine (vac pump? Lol?) and clogs my oil control rings.

It's a half assed idea I know that but I had it and I have access to d4s engines before they go to die so I obviously have had this thought I just never really considered it until now. No a catch can I still need to clean. I need something permanent lol laziness is real!

 

This is the easy option:

https://www.flatironstuning.com/process-west-intake-manifold-with-port-injection-15-21-wrx?

Or you can mix and match oem brz parts with some aftermarket gaskets & hoses:

2015-21 WRX Bolt-On BRZ Manifold Kit - Race Applications Only — iBuildRacecars.com

The iBR BRZ Manifold Kit for the 2015+ WRX platform is a complete complete kit to bolt on a BRZ or FRS intake manifold in a forward facing configuration. The BRZ manifold is a much better design than the original WRX manifold. It has larger runners, better flow and can be purchased in black plasti

www.ibuildracecars.com

Either way, getting the ecu to control it properly is the challenge.

 

He's trying to do this for the FA24, which limits aftermarket greatly which is why he wants to pull the Toyota injection system from the new Brz's

 

Eh, it's not specifically sold for the VB, but I think the FA24 is largely a bored out FA20 and has the same dimensions for intake ports and manifold.

Can't think of a cheap solution unless you wire the port injectors to a switch on the console and fire them a few times on every drive. This might be the cheapest option for port injection, again pretty sure the 15-21 tgv deletes just bolt on to FA24. The hard part is tuning and control.

https://www.kozmicmotorsports.com/product-page/kozmic-2015-wrx-port-injection-hard-parts-kit

 

Eh, it's not specifically sold for the VB, but I think the FA24 is largely a bored out FA20 and has the same dimensions for intake ports and manifold.

The blocks are very different.

For starters, it doesn't use the offset connecting rods as per the FA20 and falls back to the wrist pin servicing ports like the EJ. A lot of the external components and accessories are different as well.

 

I ain't that good LMAO I wouldn't even trust myself there (and I tune all my vehicles). Just valve washing yeah I'm.. aware that it's

Eh, it's not specifically sold for the VB, but I think the FA24 is largely a bored out FA20 and has the same dimensions for intake ports and manifold.

Can't think of a cheap solution unless you wire the port injectors to a switch on the console and fire them a few times on every drive. This might be the cheapest option for port injection, again pretty sure the 15-21 tgv deletes just bolt on to FA24. The hard part is tuning and control.

https://www.kozmicmotorsports.com/product-page/kozmic-2015-wrx-port-injection-hard-parts-kit

You got it. This was my idea but shut off when I know it'll sit for 12 hours or more. I don't know the efficacy of it or even trying and no it's not like I'm having knock issues but I.. try to do as much preventative maintenance as possible? Lol 😆

I don't even know if I could get the valves covered frankly....

 

Process west is coming out with intake with port injectors for fa24 wrx soon. It will be pricey and not something i would ever consider to keep my intake clean.



You would need a split second or secondary ecu to control it and it wouldnt communicate two way with ecu.

I had port injection by drilling into my intake and separate fuel tank and fuel pump with controller but now that hpfp upgrade is available i killed it and installed hpfp by Nostrum.

 

Yeah for sure something I wouldn't consider unless going over 400whp. I don't really see how adding port injection would help much under that power level anyways besides the extra cleaning on the cylinder walls, the FA Direct injectors already pump out plenty of fuel. I could see it helping out in certain motorsports when extending the redline. def not a mod I would do on a daily or just for the less carbon buildup. Sure, you're taking out one step of maintenance but also adding like 5 more points of failure in the process.

 

What about valve coatings? Modified BAM wouldn't.. work with the cycles but temps it could. What would be slippery enough for carbon buildup to not want to stick that can work in an engine? 🤔

If the auto companies haven't figured this out yet I doubt that I will lol but that's not gonna keep me from trying 😉

 

That is more than I would have bet on lol. 👍