Author Topic: Mustang Injectors in an M42 engine (Read 261352 times)

eric16v · « **Reply #225 on:** May 20, 2010, 01:18:22 AM »

Any one here pass CA smog with 24# injectors installed?

TIA

PumpItUp · « **Reply #226 on:** May 23, 2010, 02:15:04 AM »

mirror: http://www.e38.org/e32/efi_injectorservparts.pdf

this pdf from bosch might be useful as its straight from the source

has not only #'s but dates (to the month) of what car came with what injector
problem is its the uk? version. the #'s and dates shouldn't differ much, if any but
theres nothing on mustangs and other v8 fords, under that name at least.
someone help dug up the north american version of this

you'll still have to look up flow rates, impedance, etc.
but i hope this takes some of the guess work out of the sourcing a given injector.
simply print out a massive list for your trips to the junk yard

or have someone with a really expensive printer make a single page for you.
if the printer is good enough you'll be able to read font much smaller than this
find one for denso, lucas, etc and we're set

another flow rate site (scroll down).. and again nothing is conclusive. sometimes its by the book, sometimes they test them, :confused: so #s vary a bit.

http://www.fuelinjector.citymaker.com/Fuel_Injector_Flow_Rates.html

Rich Dixon 91is · « **Reply #227 on:** December 13, 2010, 05:10:52 PM »

I've read this thread a few times through and I think this is the proper injector:

http://www.fiveomotorsport.com/fuel-injectors/?itemid=74

The first listing, the 710. I've also seen some people using the 700, but the most definitive option seems to be the 710. The question I haven't tripped over the answer to is whether the same injector part # such as 0280155710 can have different # like 19#, 22#, etc. Many of the posts discuss what # will work with an m42 but I couldn't conclude if a single part number will have one #value.

I feel like I missed something obvious so feel free to duh me.

gearheadE30 · « **Reply #228 on:** December 15, 2010, 09:07:16 PM »

Quote from: tjts1;92630

In closed loop where the O2 sensor is keeping the AFR at 14.7 dead, you won't burn any more fuel than the stock injectors. I was running 22# injectors in place of the stock 19# and still had improved FE. It only adds extra fuel when the ECU goes into open loop (aka flooring it, high load) where your AFR will enrich. These cars already run way too lean at high load, high RPM so installing 10% or 20% larger injectors simply corrects that issue. A chip, no matter how its tuned, won't resolve the lean condition under high load. At most it can advance timing a little further to take advantage of high octane fuel. The idea setup is chip, large forward facing setup and 22# injectors. A few people are using 24# injectors but I don't have any first hand experience with that.

Just for what it's worth, I had a wideband on my car before and after installing the Mustang injectors. Before, the car was basically at 14.5 no matter what the conditions were. After the injectors, that went down to more like 13.6 at WOT and 14.5ish at a cruise. So it did have the rather desirable trait of running a little richer at full throttle.

Janne · « **Reply #229 on:** February 04, 2011, 10:41:14 AM »

How long are this Bosch 0280155715 injectors? My e36 has about 73mm total lenght of injector and about 67mm o-ring to oring. Do the 0280155715 pass my car like bolt on.

I think they can be good with my Dbilas itb and grinded intake-cam setup.

I got now 19.5lb injectors in my car and afr is lean on load and wide open, afr 14.5-15.5

Only at idle afr is around 13.4:mad:

Janne · « **Reply #230 on:** February 05, 2011, 11:07:58 AM »

I just bought this injectors but 4 pieces.

http://cgi.ebay.com/ebaymotors/ws/eBayISAPI.dll?ViewItem&_trksid=p4340.m748&item=280425191717&viewitem=&_trkparms=clkid%3D6875855580145246766

Hope they work with my car:cool:

Balleristic31 · « **Reply #231 on:** April 10, 2011, 09:17:53 PM »

Just finished my injector swap, wow that was so worth it!

Ill be giving a pretty detailed write up in the next couple days!

jscribble · « **Reply #232 on:** April 10, 2011, 09:33:26 PM »

Quote from: Janne;101164

http://cgi.ebay.com/ebaymotors/ws/eBayISAPI.dll?ViewItem&_trksid=p4340.m748&item=280425191717&viewitem=&_trkparms=clkid%3D6875855580145246766

Those seem to be rated 25% higher than stockers. I'm not up on fuel theory, but that may be a bit richer than you were hoping for.

Balleristic31 · « **Reply #233 on:** April 12, 2011, 10:59:42 PM »

Ok I HAD A HUGE PROBLEM YESTERDAY WITH MY 155 INJECTORS!! WARNING GUYS!

I was at school after driving my car for around a day with my new injectors in. I turn the car on, and immediately smell MAJOR gas. So i shut off the car and have a puddle of fuel under it. The 155 injectors i had (280155700) did not have the slot for the retaining clip to slide into on the fuel rail. Since the injector was just being barely held the clip, the clip failed under the high fuel pressure and the injector came loose and fuel sprayed out. I got new injectors that were a 150 pn with the slot in to hold the clip in. I believe driving without the slots on the injectors is VERY risky because the clips on our fuel rails were NOT meant to clamp that style of injector.

People with 155 injectors beware! I will explain this better with pics soon.

jrobie79 · « **Reply #234 on:** April 13, 2011, 01:20:36 AM »

interested in hearing more^

autox320 · « **Reply #235 on:** April 13, 2011, 01:47:25 AM »

http://www.fiveomotorsport.com/fuel-injectors/?itemid=74

Note the new bosch number Fuel Injector: Bosch 0280156013
Yes they are RED now; these are the same as the yellows i bought few months ago and posted here.

About to swap them into our 318i DD.

dunny · « **Reply #236 on:** April 13, 2011, 07:29:18 AM »

Quote from: pbgd3skier;92574

Interesting thread, but I'd like an opinion on the short of flow rate I should use.

I have a 91, 318i, and its fuel economy's been a bit shirty for the engine's size, so I am in the process of the "mess under the intake" And my lower intake manifold was of course gummy, same with the injectors.

Since I am in this deep, the concept of swapping the injectors to the 4 pintle variety seems attractive. But I do not know if I should change flow rate.

Unmodified engine, probably won't do anything to it, if I do it would probably just be a chip. Would you bother w/ swapping injectors? Will I realize any benefits going to the 4 hole variety in a factory flow rate?

I also have a 318i which I'm using for daily driving duties. Looking to get the best MPG out of it. Installed a COP kit, AFE stock air filter, and a set of the 0280155710 injectors from a 4.6L crown victoria (according to the ebay seller). I'm not certain what the flow rate is since I guess it can vary, but they seem to work well in my setup. I did have some issues sealing them up at the manifold/rail, but eventually after a few times I was able to get them to seat properly. I just filled up my tank for the first time, so I'll see what kind of MPG I'm getting this week. I don't have anything to really compare to because I just got the car running a few weeks ago and installed these injectors then.

I do have 4 of the 0280155710 injectors available if anyone would like to make an offer on them. They are supposed to have 68k miles on them, and I've had no problems with the ones I installed. PM me if interested

Balleristic31 · « **Reply #237 on:** April 13, 2011, 11:53:07 PM »

Left to right: a 155 injector that will work because of the slots for the clip, 155 that WILL NOT fit because it has no clip slot (this was where my problem occurred), stock injector, and a 150 injector with the slots (currently using these)

You can see in this pic how the clip failed

Here is how the clip should sit on the injectors which will hold it securely in the rail:

This is how the injectors with no slots hold it, notice the clip is NOT square and is buldging:

That is where my whole problem was. I may have bought the wrong injectors but the P/N was scratched out on them (sketchy!!) and i didnt know they needed that slot to work right. Jst FYI for everyone!

Janne · « **Reply #238 on:** April 15, 2011, 02:12:56 PM »

Quote from: jscribble;102947

Those seem to be rated 25% higher than stockers. I'm not up on fuel theory, but that may be a bit richer than you were hoping for.

They are good, but my car need dyno tuning now.

There is videos at my car with this 255cc injectors, itb, eisenmann, intake cam, Bmc carbon cai etc.

http://www.youtube.com/watch?v=hUqJ73Vul-U

Little bit black smoke at 5000rpm.

Toby B · « **Reply #239 on:** April 15, 2011, 04:23:07 PM »

these are the later 318 m42 injectors. They flow 235cc/min @ 53 psi

but by the flow pattern, they are 4- pintle.

There's a really 'easy' way to tell if your injectors are too small-
scope the injector pulse signal. As long as you're not over about 85%
duty cycle, your injector's big enough for your motor.
If you go over that, or go to that and sit there while the engine starts to
lean out, then a bigger injector's indicated.

'easy' he says.

t