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Weber Marelli Injectors
Posted: Thu Jan 26, 2006 9:40 am
by jonfx4com
Can anyone help me out with the flow rate for IW050 injectors (blue top) from weber marelli. I was sold them as 350cc/min but I suspect they are nowhere near that size. I need amunition to get my hard earned money back but I cant find them listed anywhere, IW050, 052, 044 no problem but not 050!
Jon
Posted: Fri Jan 27, 2006 7:25 am
by detcollector
IW050 as used in Ford 2.0L DOHC is 340cc/min at 3 bar fuel pressure.
Single spray, blue top.
Posted: Sat Jan 28, 2006 4:31 pm
by jonfx4com
yes, thats the guy told me when I bought them buts its an error in the marrelli catolog as I found out yesterday. They are in fact 189.4 cc/min which as you say is pretty much right for a production 2.0 4 cylinder thumper. It was a genuine error though and he's got a set of 275cc/min ones waiting for me on monday morning. I couldn't figure out why my 350cc (35lb) injectors were going lean in a 2.4 ltr (154CI) non turbo engine!
Posted: Wed Feb 01, 2006 5:26 am
by detcollector
Thats scary. I calculated the number from the specification. Having done the calculation again it is 205cc/min at 3 bar on gas. I can't see how I could come up with 340. Obviously MM had the same problem.
Good luck.
Posted: Wed Feb 01, 2006 5:32 am
by jonfx4com
The guy at the shop was great about it. He changed them for IW031 which are 270cc/min which is perfect for my engine. I hope there are not too many people using the IW050's, The engine damage could be horrible if you don't recognise the symptoms of ultra weak mixture. But I suppose if a person cant tell there is something wrong when they have 180cc injectors dialed in as 340cc they are all in all probablilty better off buying carbs and paying someone else to set them up!
Posted: Wed Feb 01, 2006 9:06 am
by schmidt
Sorry about the off topic, but do you guys have the specs of IWP043, IWP 024 and IWP 044 ?
Tks a lot !
Posted: Wed Feb 01, 2006 12:05 pm
by jonfx4com
iwp043 is a pico injector 14.5 ohms 330cc/min
I can find no liting for iwp044 and iwp024 but I will look at some other sources ang get back to you if I find anything.
http://www.webcon.co.uk/Downloads/ACM-4.0a-S.pdf
this site has info on some weber marelli injectorsjon
Posted: Wed Feb 01, 2006 12:17 pm
by jonfx4com
no record if IWp044 but IW044 (non pico) was used on ford sierra 2l 16v turbo 4x4 and escort 2.0 turbo 16v 4x4. No data listed on its flow rate, best guess would be 275-300cc/min
still no records of IWp024 or IW024 sorry
http://www.rgz-magnetimarelli.com/de/pr ... ystems.pdf
Jon
Posted: Sat Feb 04, 2006 4:12 pm
by schmidt
Thanks a lot mate !
