Author Topic: Mustang Injectors in an M42 engine (Read 261713 times)

Kingsly · « **Reply #105 on:** November 16, 2008, 03:19:10 AM »

I, personally, am using 'used' injectors. I cleaned them pretty throughly, and ran the car on a bottle of injector cleaner mixed with about a gallon of fuel to make sure. Oddly my old injectors also seemed to be of the 4 hole type, but with a different head design. Either way, my car pulls much harder and revs more readily, plus has a smoother idle.

(also, I fogged my airbox, which on an E36 was as simple as pulling off the funnel/muffler thing and throwing it in the trash. One of these days I'll have to go to home depot and get some longer tubing so she'll be sucking something other than engine bay air)

JP 91iS · « **Reply #106 on:** November 16, 2008, 07:48:40 AM »

Quote from: KyleTaylor;60930

Are you using "used" injectors or rebuilt, or "sonic cleaned" or what for your car, tjts1?

I am running used injectors that have been sonic cleaned. I bought them here from dbgurbbs and sent them to witchhunter.com for cleaning. It's expensive but they do flow tests before and after, send them through 3 cleaning cycles, and replace all the o-rings, filter baskets and caps. They looked awesome when I got them back.

Or you could clean them yourself.

http://www.pelicanparts.com/bmw/techarticles/JF-Tech/BMW_E30_3_Series_fuel_injector_cleaning.htm

tjts1 · « **Reply #107 on:** November 16, 2008, 08:51:19 AM »

Quote from: KyleTaylor;60930

Are you using "used" injectors or rebuilt, or "sonic cleaned" or what for your car, tjts1?

I have 0280-155-702 injectors in my car right now. There is no such thing as "rebuilt" injectors no matter what some vendors might have you believe. I clean them myself using this procedure.
http://fordfuelinjection.com/?p=82
If anybody is interested, I still have a large stash of 0280-155-700 and 746 19#injectors. I can sell for $15/injector + shipping. I also have 21, 22, and 24#. Let me know exactly what you need.

Kingsly · « **Reply #108 on:** November 17, 2008, 01:19:42 PM »

The little plastic caps on the ends of my injectors were pretty brittle, I took them off. Do I worry?

JP 91iS · « **Reply #109 on:** November 17, 2008, 01:37:06 PM »

Quote from: Kingsly;61028

The little plastic caps on the ends of my injectors were pretty brittle, I took them off. Do I worry?

I think that it should not affect the spray pattern. I wouldn't do it, but I get paranoid about those kinds of things. Just make sure the bottom of the injector is getting a nice tight seal with the manifold, you don't want any leaks.

You may be able to find an online parts store that can sell you just the caps, or maybe check with the injector manufacturer (bosch?).

Kingsly · « **Reply #110 on:** November 18, 2008, 12:56:11 PM »

I'm getting a pretty tight seal with just the o-ring, making sure to coat it with motor oil beforehand. The little plastic rings that go on the end don't seem to provide any structural benefit. They don't compress the o-ring or anything. One fell into the engine while test fitting. Naturally I didn't want that and took the others off.

I also did the 1/2" washer trick, and can't see how it provides any help whatsoever. Then again I had just single handedly torn down my entire top end. A bit too exhausted at that point to really investigate...

Colorado M42 · « **Reply #111 on:** November 19, 2008, 06:10:09 PM »

For you guys at altitude like I am here in Denver (6000'), larger injectors are not what you want. WE NEED MORE AIR!!

Froos · « **Reply #112 on:** December 02, 2008, 06:53:50 PM »

Quote from: futron.sim;49715

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.

Guys could we make a list with parts numbers and flow rates and a little description stating with what mods should work best?
Also its extremely difficult over here to get those mustang injectors over here, any thoughts on those m3 injectors. 2.3 or 2.5 m3? flow rates of the m3 types?

naika · « **Reply #113 on:** January 11, 2009, 03:52:31 PM »

Awesome thread guys, actually many awesome threads on this forum!
I bought my 318is only a couple weeks ago and i only dealt with M20s in the past so please be understanding :-)
I am installing a turbo on the M42 but I only plan on boosting 6-7psi on it, to give it a little boost on a well built, low budget set up.
I understand the stock injectors are around 20# on the M42, and I'm thinking of installing some 22-23# injectors to help the fuel supply under boost, maybe 24# tops. keeping in mind that I am in france and don't have fords all over the yards, what cars could I look for to find those injectors that will fit? Volvo? maybe other BMW or Mercedes?

thanks a lot!!

tjts1 · « **Reply #114 on:** January 11, 2009, 09:47:31 PM »

Welcome to the forum. The stock injectors are either 19# or 20# depending on who you ask. I'm using 22# injectors in my naturally aspirated car without a problem so under boost I think you should be using at the very least 24# injectors. I don't know which cars in europe will have these but if you want a set of 24# injectors I can ship to europe.
cheers
Justin

naika · « **Reply #115 on:** January 12, 2009, 05:39:56 AM »

Quote from: tjts1;64497

Welcome to the forum. The stock injectors are either 19# or 20# depending on who you ask. I'm using 22# injectors in my naturally aspirated car without a problem so under boost I think you should be using at the very least 24# injectors. I don't know which cars in europe will have these but if you want a set of 24# injectors I can ship to europe.
cheers
Justin

Thanks,
How much do you ask for 24# injectors? do they have the 4 pindles?
I found some 0 280 150 157 off of a jaguar 6 cyl 4.0, they are rated 22.3# @ 3 bar but they are low impedance, would that be a problem?

Thanks a lot

tjts1 · « **Reply #116 on:** January 12, 2009, 10:16:21 AM »

The injectors would be $50 + shipping. I will throw in a spare just in case because these are used. When I get home tonight I'll have the part number. You need to use high impedence injectors on the m42. I would be happy to sell you the 24# injectors but I have to be honest, I don't think it's going to be enough even for 6-7 psi. I think you need something in the region of 30# for your aplication.

naika · « **Reply #117 on:** January 14, 2009, 06:23:02 AM »

Quote from: tjts1;64524

The injectors would be $50 + shipping. I will throw in a spare just in case because these are used. When I get home tonight I'll have the part number. You need to use high impedence injectors on the m42. I would be happy to sell you the 24# injectors but I have to be honest, I don't think it's going to be enough even for 6-7 psi. I think you need something in the region of 30# for your aplication.

Ok, so i think I'll look for some larger injectors then, I might have found some 300cc, high impedance, that might be better.
Thanks

naika · « **Reply #118 on:** February 09, 2009, 03:21:38 PM »

Quote from: tjts1;64524

The injectors would be $50 + shipping. I will throw in a spare just in case because these are used. When I get home tonight I'll have the part number. You need to use high impedence injectors on the m42. I would be happy to sell you the 24# injectors but I have to be honest, I don't think it's going to be enough even for 6-7 psi. I think you need something in the region of 30# for your aplication.

You have PM, I found out that 24# is good for low boost on the M42, more would be too large, if you have 24# injectors with the 4 pindles then I'd be interested

JoeDellio · « **Reply #119 on:** February 11, 2009, 09:04:36 PM »

I have a 95 M42, does it still only have 1 pindle or where they upgraded to 4?