Author Topic: Mustang Injectors in an M42 engine (Read 261302 times)

troman · « **Reply #300 on:** March 27, 2012, 01:43:00 PM »

Since no one else I could find was running the 24#ers without forced induction or ITBs, I chickened out and changed my order. I got these instead:
http://www.fuelinjector.citymaker.com/catalog/item/4494564/4532416.htm

lqbanotxano · « **Reply #301 on:** March 28, 2012, 07:30:33 AM »

I have been running the 700 injectors since July 2011 with no problems. For a while I thought they were leaking. The leak came from non fuel injected hoses used on the fuel rail. I had gen2 BMW injectors on the car before the 700. The 700 run slightly smoother. They do fit on the manifold slightly looser than the stock. I was able to use the clips though.
The 700 injectors along with the Mark D 7100/91 chip turned out to be a good upgrade for the M42.

Warsteiner · « **Reply #302 on:** March 28, 2012, 08:36:47 PM »

Sorry... but How can anyone truly tell that the car is that much "smoother" with these injectors that were not meant for the fuel rail? They are the same flow rate as a clean set of stock 714's!! This 4 hole, 1 hole, multi hole thing is completely overrated on a stock motor:D

Statements throughout numerous threads have included FIRE, incorrect or loose fitment, leaking, etc....That makes me wanna run out and get a set right away...NOT.

FYI... there is no way that the clips fit properly because there is no slot for them to actually fit properly, hence the loose fitment.

Why don't we ask Barrie from Midnight Tuning what he thinks?:eek:
And running the 24#'s as well without changing the tune on a STOCK motor!

Just my .02 take it or leave it. I'm all for upgrades, when they are warranted and they work for the application as in "safety"

Just want everyone to be safe and enjoy their cars!!

Cheers,
~Ralph

lqbanotxano · « **Reply #303 on:** March 29, 2012, 07:21:00 AM »

The 700 injectors on my engine are NOT lose at the end with the clip...they are not as tight as the originals at the other end (where they fit into the intake manifold). Anyway...I keep an eye on them & check them for leaking weekly.
If I had 4 pintle BMW injectors, I would not upgrade. The performance differences are very minor.

colin86325 · « **Reply #304 on:** March 29, 2012, 03:15:05 PM »

I will be putting the 150-569 injectors in my car hopefully this weekend.

troman · « **Reply #305 on:** March 29, 2012, 04:28:20 PM »

@Warsteiner: What does this mean?

"Why don't we ask Barrie from Midnight Tuning what he thinks?
And running the 24#'s as well without changing the tune on a STOCK motor!"

TIA

JohnHenryE30 · « **Reply #306 on:** March 29, 2012, 06:27:47 PM »

I have 19#,24#, and 660cc injector different sets. The 19 and 24# are full V8 sets out of Mustangs, and the 660cc are fresh bought flow tested and for an E30,Evo,Eclipse... I was sure that changing injectors without some sort of combination of the following: an adjustable fuel pressure regulator, 255 fuel pump, possibly an after market fuel rail, and a tune---->the injectors upgraded really don't do a thing. ?

Warsteiner · « **Reply #307 on:** March 29, 2012, 07:29:43 PM »

Troman:

Barrie tunes these cars. I'm curious what he thinks.

And I'll be tuning my stroker motor shortly after I install my slide throttles and Carbon fiber airbox from the S42 with the proper injectors that fit.

Cheers,
~Ralph

troman · « **Reply #308 on:** April 02, 2012, 12:41:24 PM »

Warsteiner - thanks for the clarification.

I installed the 150-556 (http://www.fuelinjector.citymaker.com/catalog/item/4494564/4532416.htm) injectors yesterday.

Tip for the stupid --> don't reassemble everything without incrementally testing, or you will have about 1.5 hours worth of work disassembling, correcting, and reassembling your %^*(&^ upper intake.

After seeing fuel leaking from the top of two of the injectors, I took it all back apart, and re-seated the injectors in the rail. Before installing, I blew into the fuel rail with the exit pipe blocked to see if they seemed sealed. The clips and the electrical connections will help you make sure that they are vertical and seated correctly. Before putting the intake back on, I reconnected the battery, and turned the key (which I think starts the pump and fills the rail) - no leaks. Then I put the upper intake and throttle body on, and started the car - no leaks. Then I put the rest back together.

I drove it for about an hour last night, and to work this morning. It feels like it's ripping in 3rd gear. 1st and 2nd feel the same. Maybe more power in 4th. But you know...butt dyno/internet wishing is so unreliable. Who knows what AFRs are, etc. It really needs dyno analysis to tell what's going on. I honestly think it felt faster with stock injectors and a massive vacuum leak.

I'll post and update after a few hundred miles, with some fuel consumption data.

MLM · « **Reply #309 on:** April 15, 2012, 05:30:51 AM »

All this injector talk had got me concerned about my engine. Seing as i have a spare i looked at the injectors and low and behold i have both bosch 714 and Lucas d3761fa varients. Bosch are rated at 192cc and lucas at 234cc. Thats a significant difference of 21% or similar. By luck the larger ones i had fitted earlier.

Does anyone have a feel for how close the stock injectors (714's) are to their maximum flow in a stock configuration.

Do the lucas offer realistic headroom on a itb engine?

Also its curious that the difference is so marked on effectivly identical engines. one is 92 the other 94 bith e36 chassis. The lucas injectors was from a japan import engine however..

The lucas are on par with a 0280 150 786 out of interest for flow.

pepe m42 · « **Reply #310 on:** May 11, 2012, 05:26:35 AM »

I have these since two years now....
http://www.fiveomotorsport.com/product-search/?p=0280156013

fitting is same as stock... no modification needed. Also the clips are same as stock...

No leak, no fitting problem.... i used my original clips and they clip on just like with the stock injectors.

Using the car for track days, also drag-race.

Have cop kit, ported head, CDA intake, high compression pistons, lightened connecting rods, lightened flywheel, m3 exhaust made by PROEX exhaust co., Still need to chip it on dyno...

Car works okay, but stock chip is best compared to any other i tried (tried about 6 different chip). This is why i will go next week to make chip-tuning on dyno...

Here is how it sound with stock chip... also it was with stock tires on front and slick on the back... was a little shiTi to handle ... but was good for practice...
http://www.youtube.com/watch?v=Ype8l8CPZ3c
http://www.youtube.com/watch?v=HKyOfJeGwyI

lqbanotxano · « **Reply #311 on:** May 11, 2012, 08:36:34 AM »

I have the 700 injectors on my car for about a year now...still no problems.

mr ilia · « **Reply #312 on:** May 12, 2012, 10:50:18 PM »

Today at junk yard I snapped few sets of injectors. I have few questions about one set that i got.

They are off 1997 era Lincoln Continental with 4.6L DOHC. Injectors have a shape of stock m42 units, made by Denso, they are light blue with the tip is different than stock mustang units.
See pictures, I removed the little tip cover to expose the rest.

Are these injectors somewhat special 24lb units?
I'm also not sure about their spray pattern.

spanish_pants · « **Reply #313 on:** May 15, 2012, 04:56:41 AM »

I�ve been running the skinny 700�s for almost a year and a half and except for a stuck injector on #1 cylinder, i haven�t had any problems.

How many people are running these? Any problems? should i be worried?

troman · « **Reply #314 on:** May 15, 2012, 12:00:27 PM »

Fuel consumption update...

I've had the BOSCH 0280150556 Multi-Port Injectors in for about 1,200 miles now, and am averaging 24.5 mpg.

I think flooring it into open loop just wastes gas. But it really does rip in 2nd and 3rd, so...fun happens.

I have a new O2 sensor to install. Maybe that will take the consumption down a little.

Author Topic: Mustang Injectors in an M42 engine (Read 261302 times)

JohnHenryE30