gaz s1

as above really, been searching and cant find any anywhere

DazC

iTrader: (1)

The MF2 was made by ERL/Aquamist.

This is a list of suppliers outside of the UK. Ring them (there is only 2) and see if they can get hold of the MF2 for you...

http://www.aquamist.co.uk/sl/plist/frm-4.html

Karlos G

iTrader: (4)

Generally see them on ebay too, or an alternative is a Microdynamics one from Demon Tweaks but that is not as good as the MF2.

gaz s1

is the microdynamics one mappable mate,and does it go on the cold start, cant find a picture of the kit anywhere

Karlos G

iTrader: (4)

It's not mapable just runs off of a single boost pressure sensor, it can run the cold start or any injector. There is no picture on Demon tweaks though.

babscossie

I've got a MF2 ERL/Aquamist fifth inj kit for sale from my series two if your interested.

T28 RST

Are they needed

Iv seen mfi RST's with 220 @ wheels without them.

AVA fuel mods to the fuelling.

morph

iTrader: (1)

i have 5TH INJECTOR WITH MF2 MAPPABLE AND YOU CAN HAVE THE CHARGE CARRIER for sale if you are interested PM me. cheers

Karlos G

iTrader: (4)

Perhaps not needed but IMO a better choice than modding the metering unit which does give you the full load fuelling you need but at the cost of more wasted fuel off boost, terrible economy, and a horrible drive (comparitively).
If money is tight and you cant afford to go EFI then a 5th injector lets you keep your fuel pressure as it came out the factory and gives you fuel mapping for anything over stock boost, resulting in a better more responsive drive, better economy, and the extra fuel you need for making your target BHP

JMS Erst

i need what i think is the map sensor for my mf2 5th injector the one that goes into the manifold, i`ve been on the aquamist site, and they are £100 the only reason i need this is because during my rebuild that was put on hold i seem to have lost it sum place does anyone have a spare or old naff mf2 they would like to split ? HELLLP!!!.HhthH
HhghfgfM 2-Bar Map Sensor (c/w water proof socket)
GM 2-Bar Map Sensor (c/w water proof socket)
2-Bar Map Sensor (c/w water proof socket)

Rick

You can use any map sensor, although if it's a different spec to the one you had, the you will have to adjust the gain pot slightly.

Rick.

mr_joe0606

iTrader: (1)

How much does a 5th injector set up cost.


Cheers joe

Rob_DOHC

iTrader: (4)

Like karlos said.

To make the power... not really.

But if you have a set up car on mfi it will run rich as fuc* until you are on boost. All you can do at the end of the day is increase fuel pressure so this applies over the entire rpm range.

A fifth injector would actually allow you to run the car lean under normal conditions, and spot on under boost conditions.

Less engine wear and better mpg.

Rob,

luxembourgrst

i search one ? maybe one guy have on for me ? thanks

luxembourgrst

can this one be OK ?
http://www.carid.com/aem/water-metha...n-30-3306.html

don t need any pressure switch with it

Rob_DOHC

iTrader: (4)

Surely it would just be simpler (and safer) to go efi? even using standard frst stuff?

Karl @ FPT

I agree, you could get this working and then your metering unit could drift out of calibration or your ECU could develop a fault etc.

Chas

Without being funny the K-Jetronics on my previous cars never gave me any issues unless someone attacked without the first clue as to how they worked. Only once did I come across one were the car ran very poorly but the car had also been seriously bodged on the cheap in a number of ways. One or two did drift out but I do wonder how many actually did due a lack of maintenance and then adjusting bits to compensate for this... However, I have rarely dabbled with KE-Jetronic.

Maybe I am rarity here but you never hear of the 924 Turbo guys chastising the the KE-Jetronic system as you do over here, or the 930 (911 3.0 and 3.3 Turbo @ Porsche Club Great Britain) forums either. I will admit that they are getting on a bit and spares are being harder to find which can make them an unviable solution. What you do hear about are the Motronic systems playing up, something which is now becoming a real problem, with the ECUs generally giving up (I believe these are NLA), and the pricey AFMs (£180 rebuilt or £400 new) wearing out despite previously being adjusted.

For big power I do admit that the KE is flawed. I think at the power I am running (225BHP) a well known tuner here said that even with the 5th Injector (a high impedance unit) that my injection system is probably beyond what the engine can deliver. That said it is a nicer drive than my 944 Turbo was, and with a far smoother and safer fuelling curve albeit a little rich (the RST goes from 11.7 to 10:1 AFR where my 944 used to dance around between 13.9 and 13.2 @ 15PSi ; I remember the Dyno tester telling me to be careful after it was dynoed!).

Despite me sticking up in a fashion for the system I have to ask ; For a standalone ECU which would be your choice? I have plenty to do to my car (the clutch and potentially adding an LSD being the two for now!) but I am tempted to consider the OMEX 600 and Emerald K6, the latter being the experience a friend of mine has had with it on a Volvo T5 engine in addition to mine on a Triumph Spitfire 2.5. The Cosworth EFI system looks appealing but the above issues with 944s and old ECUs makes wonder if starting afresh would be a good idea...

Rob_DOHC

iTrader: (4)

Honestly, the MFI will give you a head ache after a few days. Efi drives better, is more reliable, more economical and is generally the better all round solution regardless of what ecu you install.

My biggest gripe with MFI is that its difficult to make it fuel properly for 200bhp and cruise at the same time. Ie you end up being rich every where and fuelling properly on boost. Plus the newest KE system must be getting on for 20 years old now?

I went efi and have never looked back. But each to their own etc.

Karl @ FPT

Chas, for low to mid powered cars MFI can still work just fine if it's all in good order, but for anything with decent power it's just not worth the risk of something failing or drifting out of calibration and melting your engine.

I recommend using Boost Monkeys GEN8 management, very good quality, packed with features and very reasonably priced too... supplied fitted and mapped from £1200
But ultimately you should speak to your chosen tuner and go with what they recommend (unless it's old Cossie stuff, starting a fresh is definitely the way to go IMO), as they will be able to get the best from it

Chas

Cheers for that Karl. It is one reason why I do not wish to try using an old EFI setup. There are a share that work, and a share that don't as well.

That price is not as horrific as I expected for what seems like a turn key conversion.

Karl @ FPT

Yeah it's not mega money at all, you'd need the usual EFI parts on top, inlet, injectors, sensors, etc.