Im looking to change my injectors, are the JCW and GP the same or theres something better out there??

 

The JCW injectors are 380cc.
Depending on what mods have done to the head kind of determines what size of injectors are needed.
If you have had the head ported, installed oversize valves, performance cam, etc., then going to 440, 500 or larger injectors would be needed.

 

I have a stock head so i should go with the JCW

 

I'm with you on (possible) injector replacement. Who sells them? One supplier on ebay wants something like $60 rebuilt - each! I think that's absurd for one fuel injector. I don't need JCW, by the way, just stock R35.

Are the injectors on the engine serviceable? Cleanable? Looks like a service port on the fuel rail. Can I use some aftermarket "system" to attach and run the injectors clean?

Sorry for the slight hijack, but I didn't find much specific info using search.

 

Villa8525 the JCW's would probally be just fine.
WMW, Alta, M7 all have injectors for sale.
Usually somebody will sell them on NAM Marketplace.

 

The JCW and GP injectors are the same size, 380cc.
WMW has the JCW injectors for a good price at $399.
http://www.waymotorworks.com/search....=search&page=1
Also 400cc ($349) and 550cc ($399).

 

Why would you not just go with 400cc injectors for less money? I assume because the 380s can be put inwithout a tune?

 

If you are not modded.....don't waste money on injectors as you will see absolutely no power improvement.

 

I have a 15% pulley,Cai and exhaust. I just added brisk plugs and have been debating injectors

 

Thanks, but I'm talking about stock replacements - new, rebuilt, cleaned... along those lines. After over 100K miles on mine (probably never changed) I figure it's time for some clean parts.

 

I have alta cai, alta 15% pulley, invidia cats, madness headers, brisk sparks, msd ignition and coils and now im going to ad a GP IC and injectors so i can put a programable computer to take it to the dyno.

 

If they aren't giving you problems don't worry about changing them. (except of course as a performance mod.) As far as rebuilt, personally I wouldn't touch them, mini's can be very tempermental when it comes to fuel systems. And for the "service port" on the fuel rail, I always assumed it was just a pressure bleeder.

Just run your standard in tank fuel injector cleaner every now and then and you should be just fine, the Bosch's that Mini uses are pretty reliable for a good long time, 100,000 isn't really a problem, esp. if your stock and not over cycling them.

 

whats tempermental about the fuel system?

 

Just trying to warn off against non-Bosch/aftermarket/rebuilt injectors.

 

VILLA, You mention adding a programable ECU, wha specificaly are you looking into?

Other than piggyback controllers (Which the factory ECU will adapt to and eventually overwite any benefits from it) is the Mynes ByteTroniK tuning kit. It alows you to set all the fuel/timing/etc. peramiters within the factory ECU, and can not overwrite itself.
One of the options with this kit is the BOSCH OEM 550cc injectors (actually a FORD MOTORSPORT part number), which can be properly scaled using the software, and odds are they will be the last injectors you will ever need for the car regardless of mods.

With your current mods and being at sealevel, your stock 340cc injectors are working (or trying to work) past 100% duty cycle. Thats not really good for the car. The JCW's are a 380cc which is a little better, but you will still be close to max, if you go bigger than the 380's some sort of tuning and injector scaling needs to be done.

I too would stay off of ebay and go for the quality parts. Our cylinder heads require a different spray pattern that can not be duplicated in any drilled out injector.

 

Haltech sprint 500

 

You realize this ecu is not compatible with the stock engine sensors or the BCM.

 

http://www.modyourcar.com.au/haltech..._engine=&sort=

 

I took it to a tunnes up shop and they said they will install it, these people are pretty serious so i trust them. im going to let you know if it works.

 

You know Mynes sells their Bytronik software unit for $750 and its not a piggy back unit you have to bother to wire into the car. It allows full access to the ecu for tuning as well as data logging, and the ability to check and clear codes. Also if you upgrade to larger injectors, which you should given your mods, they provide you with base maps for a starting point. I would look into that first especially because there will be a lot more support on that unit versus the Haltech unit. Just my $.02 though.

Steve

 

So my 380cc jcw injectors wont be enough????

 

No, the 380's are fine for your mods, the advantage to using the Mynes F/A software is that you learn to and make the ecu adjustments yourself (and they will help you along the way) and then any mods you do in the future YOU have the ability to make changes, if need, right away without having to go to someone else. (For Example: let's say you want to change to a larger injector like the 550's, (( don't forget the car will not run with these without an ecu adjustment)) without access to the ecu you have to find someone to tune the car and either change the injectors on the spot, or tow it to them. With the Mynes software you just e-mail them and they will e-mail you back a base map for the car with those injectors, you dowload that map into the ecu ((yourself)) and the car is now drivable, and you then have the ability to tweek from there if you want.)

One of Jan's remote tunes works basically the same way except that you won't have access to the mapping, you would download the base map for the injectors, run the car, e-mail him the data log, he would tweek it, e-mail you the revised map, you would then load it into the ecu.....repeat....untill it's as good as it can be.

Rember all cars are different, so you will probably have to tweek it @ least once, so you just have to decide if you want to do it yourself or leave it to the pro's in one way or the other. But the tweeks are why custom tuning is the best way to go.

Oh and for what its worth, and I'm sure someone else will chime in, I'd stick with a Mini tuner, Mynes,RMW,WMW etc.

 

I feel pretty confident turning a wrench in some strange places, but I dont think I would ever want to "DIY" a tune... especially when theres someone out there who has worked with these cars as long as Jan has. and for way less than $750.

as much as the idea of tuning the car myself sounds fun, there is a better chance i'd fiddle my car into dust before I'd make the kind of power my car makes now.

 

I dont think anyone is saying the Mynes software is better than Jan's tunes. I certainly am not taking sides (I know better than that!! LOL) Its just that you dont have to wait for him to come around to tune your car. If you don't live in SoCal then he only may come around your area once in a while. In this guy's case, Puerto Rico, eh I'm not too sure Jan does frequent tuning parties down there. I'd bet if he went to PR he'd rather do other stuff than tune Mini's. Its basically like getting a remote tune but with the option to do it yourself. Jan's remote tuning software costs about the same amount so compare apples and apples not apples and oranges. The Mynes' software allows him to upgrade his injectors, along with a base tune and if he wants bring it to someone who has tuned cars in the past and tweak it for him to maximize hp/torque he can. From the screenshots I've seen, they really have simplified all the data within the ECU and turned code that means nothing to us joe schmoes into plain English and numbers we can understand. Heck they even have help windows to explain what you are adjusting in each parameter! It really is a great breakthrough for our community and finally getting to that point of open source software that Subie's and Evo's have been enjoying since basically the start!

Steve

 

Now you got me thinking, the thing about the halltech its tha these tunning shop especialized in them and its right next to my house, but the haltech wont do the job?