Nasty 928

I was told by a guy(i dont trust to much) that we can use FERD(ford+terd)460 fuel injectors in our sharks, and that they actually work better? If anyone knows of any TRUTH to this or any other non Porsche parts that work on the 928 will you let us know. I think Ferd uses bosch efi systems but I am not 100%on that. thanks

Ketchmi

We use Ford injectors all the time in N/A and supercharged 928's. The Ford Racing 30# injectors are a great deal plus they have them in 19# and 24# for stock replacement.

tammons

Some more sources are.......

All Bosche low impedence

30# green tops out of 2.3L ford turbo automatics and early svo's
35# brown tops out of later years svo, and the later thunderbird turbo coupes. I think these were run in Merkers also.
43# injectors out of 302W TB fords. 2 per engine. You need a small plastic adapter from Kinsler.
50# ??? injectors out of 351W TB fords. 2 per engine, but these are hard to find. You need a small plastic adapter from Kinsler. You would probably find these mostly in trucks.

Nasty 928

How about for a stock replacement on an 82, reson I care is that for what 1 injector costs threw the big 3, a person could buy a set of 30# or 42#(5.0) injectors. If they work great and hold up I will give them a try.

Ben B

... and if anybody knows, what will fit my '85 S?

Are they really that much cheaper?

Andrew Schauer

Nasty 928-
I have a list of injectors that are supposedly replacements for 1980-1984(?) L-Jet injectors. I haven't verified any them in person, but I have 7 JECS brand injectors in the car right now. Where they came from I can't say, as they were there when I bought the car.

The cross reference list is as follows:
Part#: FJ15
Manufacturer: STANDARD
Part Type: FUEL INJECTOR
Total Number of Applications: 74

BMW (18) 1975-1981
3.0Si (2) 1975-1976
1976 L6-2985cc 3.0L F/I Vin M30
1975 L6-2985cc 3.0L F/I Vin M30

528i (3) 1979-1981
1981 L6-2788cc 2.8L F/I Vin M30
1980 L6-2788cc 2.8L F/I Vin M30
1979 L6-2788cc 2.8L F/I Vin M30

530i (4) 1975-1978
1978 L6-2985cc 3.0L F/I Vin M30
1977 L6-2985cc 3.0L F/I Vin M30
1976 L6-2985cc 3.0L F/I Vin M30
1975 L6-2985cc 3.0L F/I Vin M30

630CSI (1) 1977-1977
1977 L6-2985cc 3.0L F/I Vin M30

633CSI (4) 1978-1981
1981 L6-3210cc 3.2L F/I Vin M30B32
1980 L6-3210cc 3.2L F/I Vin M30B32
1979 L6-3210cc 3.2L F/I Vin M30B32
1978 L6-3210cc 3.2L F/I Vin M30B32

733i (4) 1978-1981
1981 L6-3210cc 3.2L F/I Vin M30B32
1980 L6-3210cc 3.2L F/I Vin M30B32
1979 L6-3210cc 3.2L F/I Vin M30
1978 L6-3210cc 3.2L F/I Vin M30


NISSAN/DATSUN (4) 1984-1987
200SX (3) 1984-1986
1986 L4-1809cc 1.8L F/I Turbo Vin CA18ET
1985 L4-1809cc 1.8L F/I Turbo Vin CA18ET
1984 L4-1809cc 1.8L F/I Turbo Vin CA18ET

200SX (CAN) (1) 1987-1987
1987 L4-1809cc 1.8L F/I Turbo Vin C/CA18ET


SUBARU (46) 1985-1990
1800 DL (6) 1985-1989
1989 H4-1781cc 1.8L F/I Vin EA81
1988 H4-1781cc 1.8L 2 BBL Vin EA81
1988 H4-1781cc 1.8L F/I Vin EA81
1987 H4-1781cc 1.8L 2 BBL Vin EA81
1986 H4-1781cc 1.8L 2 BBL Vin EA81
1985 H4-1781cc 1.8L 2 BBL Vin EA81

1800 GL (11) 1985-1989
1989 H4-1781cc 1.8L 2 BBL Vin EA82
1989 H4-1781cc 1.8L F/I Vin EA82
1989 H4-1781cc 1.8L F/I Turbo Vin EA82
1988 H4-1781cc 1.8L 2 BBL Vin EA82
1988 H4-1781cc 1.8L F/I Vin EA82
1988 H4-1781cc 1.8L F/I Turbo Vin EA82
1987 H4-1781cc 1.8L F/I Turbo Vin EA82
1987 H4-1781cc 1.8L F/I Vin EA82
1987 H4-1781cc 1.8L 2 BBL Vin EA82
1986 H4-1781cc 1.8L 2 BBL Vin EA82
1985 H4-1781cc 1.8L 2 BBL Vin EA82

1800 GL-10 (3) 1985-1986
1986 H4-1781cc 1.8L F/I Vin EA82
1986 H4-1781cc 1.8L F/I Turbo Vin EA82
1985 H4-1781cc 1.8L F/I Vin EA82

1800 RX (1) 1986-1986
1986 H4-1781cc 1.8L F/I Turbo Vin EA82

1800 XT COUPE DL (2) 1985-1986
1986 H4-1781cc 1.8L F/I Vin EA82
1985 H4-1781cc 1.8L F/I Vin EA82

1800 XT COUPE GL (2) 1985-1986
1986 H4-1781cc 1.8L F/I Vin EA82
1985 H4-1781cc 1.8L F/I Vin EA82

1800 XT COUPE GL10 (2) 1985-1986
1986 H4-1781cc 1.8L F/I Vin EA82
1985 H4-1781cc 1.8L F/I Vin EA82

BRAT (3) 1985-1987
1987 H4-1781cc 1.8L 2 BBL Vin EA81
1986 H4-1781cc 1.8L 2 BBL Vin EA81
1985 H4-1781cc 1.8L 2 BBL Vin EA81

GL (3) 1985-1986
1986 H4-1781cc 1.8L F/I Turbo Vin 5
1985 H4-1781cc 1.8L F/I Turbo Vin 7
1985 H4-1781cc 1.8L F/I Turbo Vin 5

LOYALE (2) 1990-1990
1990 H4-1781cc 1.8L F/I Vin EA82
1990 H4-1781cc 1.8L F/I Turbo Vin EA82

RX (3) 1987-1989
1989 H4-1781cc 1.8L F/I Turbo Vin EA82
1988 H4-1781cc 1.8L F/I Turbo Vin 5
1987 H4-1781cc 1.8L F/I Turbo Vin 5

STANDARD (1) 1987-1987
1987 H4-1781cc 1.8L CARB Vin 5

XT (1) 1985-1985
1985 H4-1781cc 1.8L F/I Turbo Vin 7

XT COUPE (6) 1986-1990
1990 H4-1781cc 1.8L F/I Vin EA82
1989 H4-1781cc 1.8L F/I Vin EA82
1988 H4-1781cc 1.8L F/I Vin EA82
1987 H4-1781cc 1.8L F/I Vin EA82
1987 H4-1781cc 1.8L F/I Turbo Vin EA82
1986 H4-1781cc 1.8L F/I Turbo Vin EA82

Hopefully this helps, and anyone finds any discrepencies, let me know.

Nasty 928

Thanks Andrew, and go Cougars!!!

mspiegle

i've run the Ford 24# and 30# injectors just fine. I also have a box of 42# injectors... but no car to put them in

2V4V

Bosch injectors are pretty much Bosch injectors, regardless of whether they are manufactured for Ford, Ferrari, Porsche or Peugot.

The crtitical factors of any injector swap are correct output (#/hr, cc/min, whatever) and impedance (high or low).

Save for the 'hose style' injectors used on many L-Jet cars, updating to a later and/or larger injector is pretty straightforward.

If one does go the Ford route, do NOT rely on the color coding. There are many different outputs for each color. You must reference by part number either Ford or Bosch.

Greg

Glen McCartney

Summit Racing carries the Ford injectors that can be used. I bought the 24# to use in my MY85. I plan on doing the manifold refurb next week. They cost about $240 for all 8. Others have used them with great success.

Fabio421

If one were to change the stock injectors in an 84 928, which I blieve are 24#, with the 30# injectors and change nothing else, would there be any performance difference?What about this "rising rate fuel regulator" I keep reading about. What exactly does it do and how does it do it. Does it regulate pressure or flow? If its pressure, wouldn't that put more strain on an already old fuel pump? I have read the info on the SC kits and they don't change the injectors on the stage one kits. But in other tech info I read that Porsche ran the fuel systems slightly lean to get better emissions. If the stock system is slightly lean, wouldn't boosting that same car just worsen the leaness of the system? More air needs an equally greater percentage of fuel to burn, right?

tammons

It boosts the fuel pressure an incremental amount for each # of boost. A normal fp reg, when boost is at +1 the FP will be at +1 also. With a Rising rate regulator its a ratio like 2 to 1, 3 to 1, 5 to 1, 7 to 1 etc. Some are field changable some are fixed. For instance if you had 30 psi of fuel pressure and 5 # of boost with a 5-1 RR FP reg, you fuel pressure would be 55 psi vs 35 with a normal FP reg.

Probably

More air, more fuel, but what i dont like about these things is its not precise control, like a stand alone.

It goes after the normal FP reg.

Vortech was the big seller at one time, and if you call them they can explain how much more fuel you can actually get out of one of these. They can also do a custom setup. I think Cartech has a combo unit that replaces the normal FP reg too.

atb

Fabio wrote:
>>>>>If one were to change the stock injectors in an 84 928, which I blieve are 24#, with the 30# injectors and change nothing else, would there be any performance difference?


You'd have to look at the A/F during a dyno run to know for sure. On the S4's, they tend to run very rich above 5500 rpms so a bigger injector isn't going to give any gains, and infact you'd probably lose HP since you'd be richer than stock.

I have Ford (Bosch) injectors in my S4 right now, stock size (19#). I got them because the cost for new injectors was almost the same as having the old ones cleaned and caliberated. The Ford's are a lot noisier than stock. Loud enough that if I had my choice to do it over again, I'd have refurb'd my stockers. Also, I have heard tales of where new injectors were still out of spec. So, just because the injectors are fresh out of the box and a cool orange color doesn't mean that they are caliberated.

MarkRobinson

'84 24# injectors are "nipple-fed", meaning the FMS (Ford Motorsport) injectors have a different inlet style & will not work without a custom fuel rail. sorry about that.

24# FMS injectors are a direct swap for '85-86 injectors, nothing else needed. 30# require a RRFPR to reduce FP to about 27.5psi so that your car doesnt "buck" under high vacuum, low RPM closed-loop O2 feedback. These same injectors can be used on an S4 (factory 19lb injectors), but need to chase down the correct intake-manifold o-ring seal for the S4 for the FMS/Bosch injector, as the FMS o-rings are smaller than the S4's & wil not seal at all.

Have a great weekend!

Mark

928SS

not exactly a direct fit on my GT fuel rails - had to change o rings and do some "fitting", but they are a fraction of the price of bosche, and have 4 nozzles vs bosche 1 nozzle which I suppose should atomize the fuel better....

I've got a set of low impedence #30 FMS that were too rich for my stroker, if anybody wants them cheap ($120.00)... FMS also has sets that are balanced vs the sets that are not and could have more of a variance....