Just trying to plan for a direct port injection system by welding a bung into each runner for a total of 4. This will eliminate any chance of starving certain cylinders.

I'm assuming there is some type of aluminum bung I can purchase with a range of jets available? Or is it possible to just tap each runner and thread it in?

Final question is what are you guys using as a meth manifold from the pump to each runner? I am going to make sure each hose running from the runner to meth manifold is equal length to avoid any differences.

Lets see if we can get some good solutions going here for our cars!

 

To start I plan on using a combination of these one touch connectors. Vibrant supplies them.



Devilsown sells the 4 port manifold
http://www.alcohol-injection.com/direct-in...nifold-129.html

 

I am curious about this as well. I am thinking about doing a similar setup with the manifold to equally divide the meth into the 4 runners, but dont know if the injectors would have to be welded to the manifold or if the they could be drilled/tapped into the aluminum.

 

Yeah seems like there isn't a whole lot of info on this subject in here so lets get some heads together and figure out a solution.

Devilsown also sells a 4 port kit that we can use in conjunction with an AEM kit or whatever you choose.

http://www.alcohol-injection.com/direct-po...pgrade-205.html


They also supply different sized threaded nozzles which have an O-ring that can be installed into each runner. They are also each have removable filters which is a bonus!

http://www.alcohol-injection.com/outside-m...ozzles-135.html

 

search for the official meth thread.

There might be one or two guys that have done this with the S2000 but I havent found any threads for it. So I am the only one that has a parts list and pics of direct port meth but I have yet to test it on a running engine yet cause am waiting to get my hands on the GTX30R.

 

o'malley, I was poking around on that site last week looking at that same direct port kit. seems like a pretty good way to go for the setup, just a matter of determining how to mount the injectors to the intake manifold. I will look over at the official meth thread and search around on the interwebs. maybe an evo forum will have some good tips, they seem to run this setup a lot. eternalx, I like where youre heads at! in the near future I plan on selling my 6262 and 6265 to have the funds for a gtx3076. post up results when you get on a dyno

 

Yeah, sorry Eternal X I havn't been following the Official thread lately but just checked and you were the only direct port setup that posted.

I also wont be running until the spring unfortunately. I am upgrading from the ultimate racing log kit to Siadam's 6262 Pfab top mount setup

I think it would be a good idea if we can come up with some sort of research or ideal setups for this kind of thing. Rather than me stabbing in the dark and then posting up I think it would be cool if we all agreed on specific components available and I will buy those and post up the results when I go to the dyno.

 

from reading around on other forums, it seems that running a direct port water/meth combination is beneficial for cooling down the cylinders, but you gain nearly no advantage to cooling down the intake air temperature. a direct port seems more beneficial with 100% water going into the runners, then maybe a 50/50 mix pre throttle body to cool down the IAT's. I would think though to keep the setup as easy as possible, just to run the 50/50 mix through the entire system. I have seem some good points being made though that by having a constant flow with the DPI, you have a lot more wetting on the back side of the valves while they are closed and the liquid is not actually getting into the cylinders. I would think that the injectors should be installed as close to the top of the runner for the best chance of atomization of the mix. I havent found much on which would be a better way to install the injectors to the manifold, threaded or welded. it seems to be more on personal preference, but threaded seems to work fine. I would be curious to see how well this would work on a factory manifold. I did find this picture from a thread a few years back, and its pretty similar to what I think would be an ideal setup, I would just be running an oem manifold instead of aftermarket.

 

The chance of flooding your engine increases if you run 100% water that close to the intake valve especially if your nozzles are too big.

If your only goal is to cool IAT then a single nozzle near the cold side of the FMIC will do the job just fine without the expense of direct port.

The reason I went with 75%meth/25%water direct port was to evenly increase fuel octane and cool each cylinder so the ringlands hopefully dont bust.

If you want to cool the iat also just run a 5th nozzle somewhere in the piping, it wont cool as well as 100% water but it should do well.

 

Your nozzle selection and atomization ability is absolutely crucial now that you don't have the air intake flow time before the TB to atomize the mixture for you. This has to be a well calculated system or you will wash your cylinders. If I were going to do a direct port, I'd likely run 100 meth. Or run 50/50 with very small 80-125cc nozzles with a larger single before the TB. And run it in a dual stage. Run the larger single in the first stage and then the small direct port in the 2nd.