Wait for the RTek7 v2.0, u will be able to use the 720cc injectors w/o a fuel controller.

Yeah?

Correct, view this thread for more details:

http://www.teamfc3s.org/forum/showth...5&pagenumber=1

wow i wonder how he's pulling all this off, the S4 ecu is total crap, and there was/still is only one option really, and thats to run standalone if you want to get anywhere with an S4. S5 ecu on the other hand is far superior to the S4 ecu and you can do all kinds of stuff to it, i think he will definitely create some wonderful things with the S5 as he is with the S4 already.

thats makes the RRFPR way of doing things even better if and when he does release a chip to allow it to run 720's. :p:

i wouldn't say the s4 ecu is CRAP, because it definitely gets the job done. however, the S5 ecu seems to be much better and i am really looking forward to his chip upgrade to see what all he can do with the S5 since its more advanced.

well it is in a sence, its tuning abilities are close to none, other than what henrik is doing here with his chip.

What difference does that make? You'll still have no way of compensating for the increased fuel pressure (and hence increased fuel flow). I'm quite sure the Rtek7 chip will be set up for stock fuel pressure only.

dude thats what air fuel meters and a fuel gauge is for, its a mechanical way of doing the same exact shit, ok? and last time i checked electronics FAIL, mechanical doesnt.

why are u calling the s4 ecu crap...hundreds of people run the s4 ecu with no problems.

it does its job running a stock FC, once you start modding it only goes downhill from there, you cant tune it... its either keep the boost below 10lbs. or get a standalone.

So with your magical regulator you can adjust the fuelling up or down at specific rpm increments? Of course not, it's simple mechanical device that has one adjustment only.

It makes no sense at all for you to claim something as crude as a RRFPR forcing more fuel though stock injectors is better than a fuel controller and bigger injectors, and then turn around and say you should chuck out the "crap" stock ECU and replace it with a far more sophisticated standalone.
That's absolute nonsense, and I think you know it. If that's what you really think, why aren't you buying a carb instead of a standalone?

10psi-U can run more than 10psi on the stock ecu.EASY.

so can I hook up the FPR IN LINE WITH THE STOCK ONE.

You only need one FPR.

if the s4 is crap because it isnt tuneable then the s5 is just as much crap. i think you could do just about anything to the s4 ecu as far as ecus go. thats what henrick is doing, just adding on/teaking the code. i dont think youll be able to do anything more with the s5 ecu that you cant do with the s4, cause if your as smart as henrik you can do just about anything you want with either ecu.

Sometimes the truth is not what you want to hear

http://mazda.a-spec.ca/

"engine control computer speed was doubled and operation upgraded for faster response to throttle inputs."

Sometimes the truth is not what you want to hear

http://mazda.a-spec.ca/

"engine control computer speed was doubled and operation upgraded for faster response to throttle inputs."

deltr0n i'm beginning to think you're not very smart wit this whole modding/tuning thing..

Yeah, but more people own 87-88 models and tuning is a safer compared to the 89-90(higher compression.

Blow a 89-90 model and tell me how faster ecu responses will locate you a spare 89-90 rotor housing.

Hahaha, so true Eraumazda.

its easier for the safc, but wat about the hks f-con with gcc? better to go equal sized primary and secondaries or smaller primaries with bigger secondaries?

eric.

Um... "The BEGI fuel pressure regulators are designed to ADD FUEL to cars modified by turbo..."

He's got the fuel taken care of already. All he needs to do if the car is properly tuned is to run the car at the desired fuel pressure, which will go up ONE psi per ONE pound of boost, to compensate for the additional pressure in the intake manifold, and inject the same (well close to the same) amount of fuel for a specific injector duration.

Has anyone actually used one of those Bell RRFPRs? All I hear is bad juju with them. I bought one for my 99 GSXR750 that I made a turbo kit for and it wasn't on there a week before I had to take it apart and fix it. Worked great for 2 days and broke again.. Fuel pressure wouldn't stay still. It was actually loading my pump down.

I finally chucked it (and it was brand new) and bought the more expensive Vortech SFMU. Havent had a single problem since. The bike is running great. Guess you get what you pay for.

Regards,
Mike Montalvo
digital tuning, inc
www.pocketlogger.com

Is there any reliable information on the web regarding the setup of the Apexi SFC?