I want to change out my RC370cc injectors to something that has an improved spray pattern.
FIC are based on the Bosch injector and I would have to get PnP plugs to get the working.
DeatschWerks is based off the Denso (HONDA OEM MFG) but I would not need plugs.
The problem is I have seen data and information that show that using FIC will gain power and use less fuel in a direct sway and tune.
I haven't been able to find the same level of information on the DeatschWerks so I am a bit skeptical.
Does anyone have experience or knowledge other wise?
Oh by the way my RC370 are at 70% duty cycle on OEM fuel pressure. This change is NOT because I need more fuel, I just want an injector with an improved spray pattern.

 

Have you checked out their blog? Might have the info your looking for.

http://deatschwerks.wordpress.com/

 

The deatschwerks is great stuff, and very easy to integrate. I have yet to see an injector actual gain power without some other timing adjustment to compensate for the better enrichment (just a matter of sense, I guess). But either one will do fine. I would also look into the Siemen Deka series injectors as well. Awesome spray pattern, and no need to change injector clips at all.

 

Power gains from switching rc 550cc's to bosch 900cc's. I know the photo link is dead :/


https://honda-tech.com/forums/all-motor-naturally-aspirated-44/bosch-900cc-injectors-vs-rc-550cc-2687802/

Edit: nvm found the pic off his facebook. Rc's (blue) vs Bosch's (red)

 

FIC injectors come with pigtails.

 

Fixed the link in the thread.

I do want to test the Denso style (new) injector without the atomizer plate removed. Most of the higher flow injectors in the denso style are removed to my knowledge. Maybe DeatschWerks can help me out with that

 

Interesting, but until I see a comparison of the millisecond time delay in the map, I'm not convinced that was the injector was the only reason for it making more peak power, especially going from that large of a size.

 

Please explain then. You are already flawed by ASSuming that a larger injector is "worse" then a smaller one.

I will be waiting.

 

Ever heard of duty cycle before? Obviously a better atomization was what caused the gain in power.

 

My tuner is Distributor for FIC and has changed out injectors on many cars he tunes. Every car has gained power and improved MPG after the switch. 90% are turbo'd cars but the impact would be the same on an NA car just to a lesser extent.
Better spray=improved atomization=more power and improved MPG.
Over the past months I have been searching the Internet to find more details about the DeatschWerks, just not much out there.

 

I'm going to agree that a 10% difference in power won't come from a simple injector change.

Post the runs files from Dynojet and post both complete calibrations and I'd be more apt to give credit if credit is due. To many variables here are left out of the equation with a simple dyno graph

 

I do not have the tune file for that car anymore, he was on neptune chip based and it was saved over because he only had one lease for the car and he changed the motor 6 months ago. I have the dynos, it was done on the same day and within 2 hours.

Some say they will not gain from going from hondata to haltech, but some have I do not see how it is hard to understand going from a garden hose to a injector that fires to the back of the valve on BOTH valves.

BTW, I scale ID1000s at 895cc, and they work great

 

cool story bro=P

Which injectors are you looking at? i assume the FIC 900s?

 

Check the first post, DeatschWerks.

 

While I agree that an injector that atomizes fuel better will idle better and give you better fuel economy, a motor is an air pump, and at wide open throttle it is consuming air based on it's volumetric efficiency, in the equation PV=nrT, non of those variables stands for atomization.

Agreed?

 

Actually, if you read deeper into SAE papers there is more literature about atomization at WOT. Think about it this way, it is easy to suck small amount of well placed fluid when it is to suck larger amount of displaced fluid.

As much as a engine is a air pump, efficiency is key to making that pump work not only better, but stronger. If you used your "it is just a air pump" all intake and exhaust manifolds would make the power. It is all about waves

 

If the stock 240cc injectors can support around 200whp, then is going to such a huge injector necessary? How big is too big?

 

Wouldn't better atomization promote additional cooling of the intake charge and thus make more power given all other variables being equal? I would also think more fuel would be needed as well given there is more O2.

 

It's not necessary but to my knowledge, only the larger FIC injectors (750cc and above) had the better spray pattern and would make more power so that's why people went with them. It's great if people wanted to run E85 on all motor or it would leave some room on an average boosted car.

 

Actually the the FIC 525's or the DeatschWerks 440cc.

Already running RC370's at 70% duty cycle. Looking for more power from the injectors.

I have also heard this but I can't confirm it or prove it other wise. It seems like many of the application are running big turbos and go really big. Hard to find good data.

The stock injector and RC’s are a Lucas type injector, basic spray pattern is a simple cone. The problem is the cone spray is not exactly uniform. Too much in one area and not enough in another. Not bad for something designed in the 1970's. These new injectors do more that improve the spray they also run cooler, faster, more efficient and have better aim into the intake runners as well as fill up the combustion chamber better and faster.

 

The 525 and up high impedance injector have a great spray pattern. The older delphi,lucas and them do not. Pretty much any new bosch has a good spray pattern. i would get the FIC 525 or the 900cc injector. With the 900 you have enough room to grow. And too big is hardly an issue anymore. You can get 2150cc injectors to idle great. and The resale imo is alot better with something bigger you have a bigger market then just the all motor guys.

 

what about RDX's?

 

Another video on this subject. Pretty interesting to see even a stock LS benefit from injectors that are 2000cc's.


http://www.youtube.com/watch?v=RX1xIvOWcNk

 

No. I'm not saying better or worse at all, nor am I assuming anything. I'm simply waiting on a better explanation as to how it simply makes that much more power, everything else equal. I'm the one waiting on the explanation this time, capice?

 

Nope, I am still waiting for your essay on why a newer, better injector would not gain over a older design. If you are going to call someone out on data, at least have something to stand on. Further more, if you read the thread, more people and I have explained some of the reasons why. With that, explain why the control of the injector (in MS) would play a difference when the injector is a different size and coil design.

It is nice to question data, but blank statements help no one.

Maybe I am just coming off on the wrong tone...