Ford Fuel Injectors
08-12-2004, 12:44 AM
#1
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Ford Fuel Injectors
My '88 S4 with 112K on it has been idling rough and developed a slight stumble upon acceleration. I've run a few bottles of injector cleaner through but it hasn't seemed to help much. I was going to have the injectors cleaned but at the cost of the Ford injectors I'm thinking of just going with those. Someone mentioned that with those it runs a bit rich at idle. Is this true? If so am I going to have problems passing emissions tests?
As I understand it the 19# injectors are the ones to get and I'll need the spacers and o-rings from the old injectors (if I can get them off). Correct?
As I understand it the 19# injectors are the ones to get and I'll need the spacers and o-rings from the old injectors (if I can get them off). Correct?
08-12-2004, 01:06 AM
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Andy,
It dosen't seem to me that the Ford 19# injectors would run rich at idle. I use the FMS 30# on my supercharged S4 and even they aren't too bad.
HTH,
Andy K
It dosen't seem to me that the Ford 19# injectors would run rich at idle. I use the FMS 30# on my supercharged S4 and even they aren't too bad.
HTH,
Andy K
08-12-2004, 10:13 AM
#3
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ditto.
08-12-2004, 11:45 AM
#4
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I have installed the Ford 19# on my Euro MY87 928S4 (No O2 sensor) it ran fine.. You will need the O-rings and they fit just fine. The Ford injectors could be had for around $200/set of 8. Good upgrade.
08-12-2004, 01:16 PM
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Originally Posted by Andy C
I'll need the spacers and o-rings from the old injectors (if I can get them off). Correct?
the spacers don't really matter, but are you really going to use 16 year old seals?
08-12-2004, 02:26 PM
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I bought brand new seals specifically for the ford mustang, and I have not had any problems getting the injectors to mate to the fuel rail. Why do people suggest using the old seals?
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08-13-2004, 01:34 AM
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Andy- How much are the Ford injectors? There's a guy in Michigan who rebuilt/flowed mine last year, and he charged me $16 each to do it! He's not a Rennlist sponsor as far as I know, so PM me and I'll give you his name.
A great source of information on injectors is Rich at Cruizinperformance. He's in Michigan, but I don't have his phone number.
N!
A great source of information on injectors is Rich at Cruizinperformance. He's in Michigan, but I don't have his phone number.
N!
08-13-2004, 06:52 PM
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How many pounds are the stock injectors? and did they change from year to year?
SilverSFR
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08-13-2004, 08:18 PM
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SilverSFR,
It changed from year to year.
85-86 US = 24# high impedance
S4 = 19# high impedance
up to 84 US = low impedance. I can't remember the #/hr but they are pretty big.
HTH,
Andy K
It changed from year to year.
85-86 US = 24# high impedance
S4 = 19# high impedance
up to 84 US = low impedance. I can't remember the #/hr but they are pretty big.
HTH,
Andy K