Author Topic: Mustang Injectors in an M42 engine (Read 261908 times)

Kingsly · « **Reply #120 on:** February 12, 2009, 12:34:23 PM »

Well as near as I could tell the injectors off my '93 had four holes in the pintle, but they were buried way back into the injector assembly and hidden behind plastic bits. The mustang ones are right up front so they literally spray directly into the intake mani.

colin86325 · « **Reply #121 on:** February 12, 2009, 09:03:42 PM »

Some of the later E36 M42 injectors used a sort of air injection into the fuel injectors in an effort to reduce emissions:
http://www.motortraders.net.au/groups/group.asp?group=1&menu=88

I'm not sure you'd want to swap this style over to the Mustang injectors because: you already have 4-pintle injectors, and emissions might be worse (if that's a concern) w/out the air injection.

ClubSport · « **Reply #122 on:** February 12, 2009, 09:18:46 PM »

Quote from: colin86325;66430

Some of the later E36 M42 injectors used a sort of air injection into the fuel injectors in an effort to reduce emissions:
http://www.motortraders.net.au/groups/group.asp?group=1&menu=88

I'm not sure you'd want to swap this style over to the Mustang injectors because: you already have 4-pintle injectors, and emissions might be worse (if that's a concern) w/out the air injection.

True the E36 M42 injectors had a larger bottom end diameter. Putting "standard" injectors like from a Mustang into the manifold requires special spacers.

tjts1 · « **Reply #123 on:** February 13, 2009, 12:10:39 AM »

You can take a standard injector, stuff it into the plastic housing from the old injector and plug up the vaccum port at the top of the pic. The injector and plastic housing separate.

odbod · « **Reply #124 on:** February 14, 2009, 02:48:53 PM »

The E36 M42 injectors are the same size, I've got some sets of them and they are the same, the M44 have the larger base we are talking about here.

I'm not sure it's air injection, I'm stripping an M44 at the moment and the additional air inlets are for the idle air control that is mounted to the side of the throttle body.

M44 Fuel Rail and air lines from ICV

M44 Throttle Body

I'm pretty sure that I had a set of E36 M42 injectors that are 2 of 4 hole type

Awgy · « **Reply #125 on:** March 19, 2009, 04:18:02 PM »

I found this site that may help finding rates and such. Im not 100% sure on how accurate this iformation is. Even the site says they've had to change some of the info. So I figure we can help and benifit from this site.

http://www.fuelinjector.citymaker.com/page/page/4782443.htm

ClubSport · « **Reply #126 on:** March 19, 2009, 05:40:19 PM »

Quote from: odbod;66514

The E36 M42 injectors are the same size, I've got some sets of them and they are the same, the M44 have the larger base we are talking about here.

I'm not sure it's air injection, I'm stripping an M44 at the moment and the additional air inlets are for the idle air control that is mounted to the side of the throttle body.

Yep, that's what my M42 injectors look like. 9/95 build date, large bottom with air tubes.

romeomike · « **Reply #127 on:** April 16, 2009, 01:53:29 AM »

Visited my favorite pick-a-part yards and found some of the yellow 0 280 155 700's from mid-90s 4.6L V8 Fords at $5 per injector. One was from a Mercury Sable, the other a T-Bird LX. There was a large list earlier on this thread about the possible applications, but the biggest help was getting answers on where these injectors were installed as standard equipment. An 8mm socket wrench was useful for undoing the Ford fuel rail bolts.

Haven't installed them yet, as I am in the mind to replace a slow-leaking radiator first (the RTV fix on the coolant reservoir tank could not be extended to other plastic parts).

bbarnumboy · « **Reply #128 on:** April 17, 2009, 07:55:37 PM »

so do you guys think i already have 4 hole in my injectors on my 1993 e36 m42? production date 10/92? if not was it determined which one is a direct fit?

romeomike · « **Reply #129 on:** April 20, 2009, 08:21:00 PM »

According to realoem.com, there are four different part numbers for the injectors (part number 3):

http://www.realoem.com/bmw/showparts.do?model=CA53&mospid=47490&btnr=13_0366&hg=13&fg=15

bbarnumboy · « **Reply #130 on:** April 20, 2009, 10:41:54 PM »

pulled the injectors, and i have factory 4 hole injectors. sent them out to be ultrasonic cleaned etc..

papercutout · « **Reply #131 on:** April 21, 2009, 12:55:59 PM »

Quote from: tjts1;49757

Last night I replaced the 19# yellow ford bosch injectors (0280155700) with 21.9# dark blue volvo bosch 960 injectors (0280155702). This swap goes hand in hand with my TB fix and CAI.

Had another question, so thought I'd bump this up!

Having trouble finding any of the above injectors (being the UK, its even trickier to find mustang ones!), but I have found a bunch of volvo injectors for sale on ebay atm, if I give you guys the part numbers, are you able to find anything else out about them?
Whether they're 4 pintle? Whether they'll fit at all etc? (pics included for your ease)

Thanks guys!

0280150762

0280150779

0280150804

Thanks!

Just had a quick search, came up with this site that tells me the 'Bosch Number', 'cc/min @3bar' and 'Resistance (ohm)'. Not 100% sure I get it all, the volvo ones posted by tjts1 give a cc/min of '231' and a resistance of '12.0'. The first two I posted give a cc/min of 200 and resistance of 15.9, which is ovbiously worse. The last set I posted show a cc/min of 311 and resistance of 2.4 though! VERY low resistance (bad?) but high flow rate! Bearing in mind the Ford ones tjts1 posted give readings of 200 and 14.5.

Sooooo?!
http://www.polog40.co.uk/article_injector_table.php

tjts1 · « **Reply #132 on:** April 21, 2009, 01:57:29 PM »

You can look up their specs here.
http://www.witchhunter.com/injectordata1.php4

good luck
Justin

papercutout · « **Reply #133 on:** April 21, 2009, 04:22:01 PM »

Thanks!

See the link I posted at the end of my post - pretty much the same data.

Essentially, the last injectors will flow LOTS, BUUUUT the resistance is very low. I haven't the foggiest idea how well they'll fit, if they actually do, and I have no clues about the resistance. My guess is that I want similar resistance to your volvo ones, which is 12. What effect is this going to have? Etc...
(engines are one of those things I don't do much, although I'm getting there! I know how to do the HG now, and strip it down!).

So, flow sounds great, but that resistance leaves me clueless. If it was similar/close, they'd probably be worth trying for �10! As is, an educated person's idea will be very helpful.

Thanks!

tjts1 · « **Reply #134 on:** April 21, 2009, 04:41:26 PM »

There are generally 2 families of injectors. High and low resistance Our injecotrs are high resistance and should only be replaced with another high resistance injector. Anything over 12 ohm is considered high.
For flow rate, I wouldn't go more than 20% over stock for a NA aplication. I hope this helps
cheers
Justin

P.S
My friend in the uk pointed out that GM 2.5 v6 used in the late 90s saab 900 and vectra (probably a few others) has 22# 4 hole injectors.

Author Topic: Mustang Injectors in an M42 engine (Read 261908 times)

Kingsly

Mustang Injectors in an M42 engine

colin86325

Mustang Injectors in an M42 engine

ClubSport

Mustang Injectors in an M42 engine

tjts1

Mustang Injectors in an M42 engine

odbod

Mustang Injectors in an M42 engine

Awgy

Mustang Injectors in an M42 engine

ClubSport

Mustang Injectors in an M42 engine

romeomike

Got me in the game

bbarnumboy

Mustang Injectors in an M42 engine

romeomike

It depends

bbarnumboy

Mustang Injectors in an M42 engine

papercutout

Mustang Injectors in an M42 engine

tjts1

Mustang Injectors in an M42 engine

papercutout

Mustang Injectors in an M42 engine

tjts1

Mustang Injectors in an M42 engine