Author Topic: Mustang Injectors in an M42 engine (Read 261262 times)

mkodama · « **Reply #60 on:** April 24, 2008, 01:38:41 AM »

Quote from: tjts1;38845

A nice comparison of different injectors and the spray pattern they produce.

http://z-r-c.com/News/article/sid=32.html

Makes me want to know what the two on the far right are...

izzzo · « **Reply #61 on:** April 28, 2008, 06:32:35 AM »

what about the late M42 on E36- from 95, do they still use one hole injectors( will this Mustang-mod work for me?)

Cobra Jet · « **Reply #62 on:** April 28, 2008, 09:04:25 PM »

Quote from: tjts1;38703

The picture is a bit blurry but you can see the 1/2" washer at the bottom of the injector. Oh and 190 miles at 1/2 tank so far.

Justin,

Just curious... is it really "safe" to run the vehicle w/ your "washer mod" on the injectors? I would be concerned about a fuel leak if the injector were to shift or not be 100% sealed properly due to having to use a metal washer.

That solid orange, skinny Mustang injector is the newer style "mod-motor" injector as used on the 96+ SOHC & DOHC Mustangs (and other Fords).

The other Mustang injector, which has the silver body & yellow top is the 5.0 19lb injector that was used on nearly all 1986-1995 Mustang 5.0's (and other 5.0 Ford products, including the Crown Vics, Lincolns, Broncos, F-Series trucks, etc).

You cannot safely use the newer style solid yellow injector in place of the older style injector due to the differences in height and sealing characteristics of the O-rings & fuel rail assemblies - mainly because of possible fuel leaks. Granted we are talking using these parts in BMW's so some of the above is null & void as it applies to Fords, but if it were me, I would surely use the same type of injector as a replacement (exterior characteristics/dimensions - height/o-rings, etc) rather than trying to make a different type "fit". Again, I'm not saying what you did is 100% incorrect, as it does seem to work, however, IMO it's not the best solution and just does not seem as safe w/ using a washer to hold the injector into the fuel rail & intake.

tjts1 · « **Reply #63 on:** April 28, 2008, 10:39:24 PM »

Quote from: Cobra Jet;48116

You cannot safely use the newer style solid yellow injector in place of the older style injector due to the differences in height and sealing characteristics of the O-rings & fuel rail assemblies - mainly because of possible fuel leaks. Granted we are talking using these parts in BMW's so some of the above is null & void as it applies to Fords, but if it were me, I would surely use the same type of injector as a replacement (exterior characteristics/dimensions - height/o-rings, etc) rather than trying to make a different type "fit". Again, I'm not saying what you did is 100% incorrect, as it does seem to work, however, IMO it's not the best solution and just does not seem as safe w/ using a washer to hold the injector into the fuel rail & intake.

Everyone is entitled to their own opinion and im certainly not trying to push this modification as the end all be all in fuel injectors. I disagree on a couple of points. The ford injector is exactly the same height as the bmw injector, using the same size injector seals and the same electric connector at the same height. The only critical differrence is the shape of the body. Most manufacturers use the pintle cap as a mouting point of the bottom of the injector. BMW used the metal body, hence the need for a 1/2" washers. Both injectors were manufactured by Bosch. Yes, the washer is my own bodged invention in place of the weird bmw pintle cap but in 6 months and 6k miles it has never leaked. I've checked them frequently under pressure with the engine both hot and cold.

ShinnickSP · « **Reply #64 on:** May 19, 2008, 11:36:36 AM »

The FIVEOMOTORSPOR.COM site shows the 19# mustang injectors as Bosch #0-280-155-710 and #0-280-155-700. The picture for the #700 injector does not look like the stock injector (0-280-150-714 for the M42/M30) though. While i haven't found a definitive picture of the #710 Mustang injector, from the bellow link it looks closer to stock than the #700. It is also not clear from the below link if the #710 is four hole or one hole? I say closer to stock because of the clip that slides into the groove of the injector and around the fuel rail port to assist with holding it in place.

It appears the benefit of the #700 injector may be that is has four holes (vice a one-hole pintle for stock or a one-hole disc-type for the #710) but you may need a washer at the manifold end in order to help hold the injector in place because the clip can't be used?

(http://www.fiveomotorsport.com/Injector_SetsBMW.asp

Wise Old Dog · « **Reply #65 on:** May 19, 2008, 03:47:35 PM »

I have the 710's. They are the 4 hole type.

colin86325 · « **Reply #66 on:** May 19, 2008, 06:12:27 PM »

Quote from: Wise Old Dog;49700

I have the 710's. They are the 4 hole type.

You didn't have any mounting problems, did you? I mean, did you have to use metal washers?
What type of mileage are you getting?

Wise Old Dog · « **Reply #67 on:** May 19, 2008, 06:59:40 PM »

No mounting issues. 25-27 around town.

futron.sim · « **Reply #68 on:** May 19, 2008, 08:26:38 PM »

Any type of injectors you could use is the M3 pink top injectors. They are rated at 210CC which isn't far from the stock ones. The M3 injectors has 4 holes as well.

tjts1 · « **Reply #69 on:** May 20, 2008, 01:35:35 PM »

EDIT: The washers are not necessary. These injectors fit without any modifications.

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.

nomad · « **Reply #70 on:** May 20, 2008, 02:24:31 PM »

Your car is becoming a 318is Volvo!

So why the switch? How is 22# going to help at the same fuel pressure and fuel delivery time? Were they cheaper? Did you buy new or junkyard?

tjts1 · « **Reply #71 on:** May 20, 2008, 02:41:11 PM »

Quote from: nomad;49761

Your car is becoming a 318is Volvo!

So why the switch? How is 22# going to help at the same fuel pressure and fuel delivery time? Were they cheaper? Did you buy new or junkyard?

Sad, but true. Volvo fan, plug wires, now injectors. Pretty soon I'll have to swap badges.

The stock injectors (0280150714) are 20#. I initially replaced them with 19# ford injectors and life was good. Then I fixed the hot air intake, picked up a bunch of throttle response and acceleration in the mid range but nothing at the top end. Its obviously getting enough air now so, maybe the solution is more fuel. So goes the theory anyway. The dyno will tell all.
http://farm4.static.flickr.com/3251/2505220617_e08bb12e31_o.jpg

nomad · « **Reply #72 on:** May 20, 2008, 02:48:38 PM »

So the knife edging will help huh?
Seems like an easy little project to pass some time.

I like the way the high beam intake looks. It does blend in better with both sides.

I'm considering eliminating the high beams and getting some dual filament H4 if I can find good rewire info. I think two black intake areas would look nice and I could pipe some outside air into the intake and down the header side to help scavenge hot air from the engine bay.

I'll be hitting up the junkyard soon and looking for volvos to get wires, fan and now injectors too.

tjts1 · « **Reply #73 on:** May 20, 2008, 02:57:36 PM »

Quote from: nomad;49764

So the knife edging will help huh?
Seems like an easy little project to pass some time.

I like the way the high beam intake looks. It does blend in better with both sides.

I'm considering eliminating the high beams and getting some dual filament H4 if I can find good rewire info. I think two black intake areas would look nice and I could pipe some outside air into the intake and down the header side to help scavenge hot air from the engine bay.

I'll be hitting up the junkyard soon and looking for volvos to get wires, fan and now injectors too.

I have no idea if knife edge helps but I feel better knowing its done. These are the H4 headlights I'm using.
http://cgi.ebay.com/ebaymotors/5-3-4-4000-H5006-H4-EURO-CONVERSION-HEADLIGHTS_W0QQcmdZViewItemQQ_trksidZp1742Q2em153Q2el1262QQcategoryZ33710QQihZ013QQitemZ230132376960QQtcZphoto
Cheap made in india but the reflectors are just as good as my old hellas. Don't use/buy any of the Autopal bulbs though. Even the 100w version are total garbage and most have the base on crooked. Pick up H4/9003 bulbs at the store. Napa carries German made 80/100w bulbs.
If you have sealed beams the H4 headlight is a direct drop in. No rewiring required. Elipsoids are a different story.

The fan is volvo 940/960. 850 also works but the shroud is a harder to use.
Plug wires are volvo 850
Injectors are 95-98 volvo 960/S90/V90. In general yellow injectors are 18-20#, Dark blue is 20-22#.

Most yards are having a 1/2 off sale this weekend.
http://www.picknpull.com/events_and_specials.aspx?View=Detail&ID=475
http://www.pickapart.com/

cheers
Justin

colin86325 · « **Reply #74 on:** May 22, 2008, 12:12:27 AM »

I had an extra set of injectors from a 1992 E36 318iS that were in good condition. It turns out that they are also 4-pintle injectors made by Lucas. They have the following Lucas number on them: D3761FA. The BMW part number is 136 4 1739 242

Anybody know how these compare to the Bosch 155-710 injectors as far as cc flow and atomization?