Super ETA (stock) parts questions

[phenryiv1]

I really have searched, and I get huge information gaps. Real OEM did not help much either.

My (current) concern is in 4 areas:

1. Fuel injectors- What is the stock flow rate, and what color should they be? Are they eta injectors, or "i" injectors?

Real OEM shows completely different part numbers between the Super eta (2 different options) and the "i" (3 different options) for the same build date, but that still does not tell me squat about flow rate.

2. Fuel Rail- Is the Super eta rail the same? Real OEM says "yes" but then the injectors are unique part numbers. Seemed odd to me. Clarification?

3. Alternator- Is the Super eta alternator an 80A or 90A model? Some forum heresay says both, and Real OEM shows BOTH as options for the 1988 325. I even ran the Real OEM inquiry based on my VIN, btu it still listed both options. Can anyone clarify which alternator comes on the Super eta?

4. Radiators- I know that between an auto and a manual, there are differences, but what about between an "i" car and the Super eta, assuming the same transmission type? Real OEM says that the Seta and "i" manual transmissions share the same radiator (with the "i" auto being off by one digit in the P/N), but I can't confirm.

:) I reserve the right to add more clarifying questions as I think of them! ;)

[SpecM]

1)Injectors: the flow rate is the same as an etas (12.5lbs/hr), but the internal impediance is that of an "i", ie a Motronic car

2)Fuel rail: all m20s have interchangable fuel rails, some are front-feed (late) and some are rear-feed (early), but they are all interchangeable, with the use of a longer fuel line

3) not sure, but both are useable

4) all late-model radiators are the same (all 88 s-etas and 88+ "i" cars), other than of course auto vs manual, although you can use an auto radiator in a five-spd car.

[nando]

12.5#? where did you get that number from? I've never seena nything but 19#.

anyway knowing the part # of the injectors you should be able to find out. There are a couple good websites for fuel injector information.

[Wh33lhop]

12.5#? where did you get that number from? I've never seena nything but 19#.

anyway knowing the part # of the injectors you should be able to find out. There are a couple good websites for fuel injector information.

...Pretty sure you mean 14#...

Pat, if you're interested I can pull the injectors and 173 from my M20. I'll PM you.

[nando]

14 is the stock B25 size

talking about eta's here. ;)

[phenryiv1]

So I am confused...what are the stock S eta rates, and what are the stock M20B25 rates?

[thereisnoyun]

lets just make this simpler,

1.) you have to at least use i injectors for your 2.7 stroker build. 14 is the stock size, 17.5 from m50 is the typical upgrade and so are 19s from mustang.

stock eta is 12.5
stock i is 14

[phenryiv1]

lets just make this simpler,

1.) you have to at least use i injectors for your 2.7 stroker build. 14 is the stock size, 17.5 from m50 is the typical upgrade and so are 19s from mustang.

stock eta is 12.5
stock i is 14

Thank you.

Little follow-up: If I use M50 17.5s, how does the rest of the car adjust? Does the DME auto-adjust?

[Wh33lhop]

14 is the stock B25 size

talking about eta's here. ;)

You're even confusing me here.

Pat, the ECU will adjust eventually but will probably throw a CEL at idle, unless you've got an idle trim screw on your AFM that you can adjust to lean out the idle (like I did).

[nando]

lets just make this simpler,

1.) you have to at least use i injectors for your 2.7 stroker build. 14 is the stock size, 17.5 from m50 is the typical upgrade and so are 19s from mustang.

stock eta is 12.5
stock i is 14

again, where did this number come from? I'm curious because most people say 19#. I know they are low impedance on the regular eta motor.

[Mitch M]

According to an article written by Pete McHenery in the Roundell, ETA's are 19 lb/hr.

SETA (cream) are ~12.x lb/hr. 2.5 bar FPR
i's (blue 715) are ~14.x lb/hr. 3 bar FPR

Not sure if flow rate is use fp specific or off a 3 bar std.

Early M50's (green 415) use 3.5 bar on e36's.

[Wh33lhop]

Weird. Doesn't make sense to me at all why they'd use 19lbers for etas and waaay slower injectors for superetas and i's.

[thereisnoyun]

my head is hurting from reading this, all the man wants to do is know waht injector he wants to use for his stroker set up. the green m50 injectors will work just fine.

[phenryiv1]

my head is hurting from reading this,

Mine too, but we could end up with good, solid info in the end.

all the man wants to do is know waht injector he wants to use for his stroker set up. the green m50 injectors will work just fine.

Here is the deal:
I have both Seta AND "i" injectors available, and want to send one set to be cleaned and updated. If the "i" injectors will give me the proper, flow, then I will pull them from the motor and send them off. If I need to get different injectors, I may start looking around for a set that is already rebuilt/remaned/serviced. If that means M50 injectors, then so be it.

Edit: I was looking at a couple of sets here:

http://www.r3vlimited.com/board/showthread.php?t=151509

But don't know which set would be right for my build.
End edit.


I still would say that this is more of a top-end build/refresh than an actual stroker build, btu since most people call it a stroker build, we can keep calling it that.

[phenryiv1]

According to an article written by Pete McHenery in the Roundell, ETA's are 19 lb/hr.

Is that a REGULAR eta motor?

(See where the Seta versus eta discussion gets so confusing!!!)