mustang injector question

[devon.818]

ok i have a stock 325i 2.5L auto.

i found a guy selling his '93 mustang injectors for CHEAP.
do these just take place of factory injectors or is there modification that needs to be done? also would i NEED to buy the MarkD chip?

thanks.

[StuntDrivin4U]

I am curious of this as well as I have a 5.0L mustang with the engine out right now getting rebuilt.

Only difference is I have a 325e 2.7l man

not to thread jack man! curious

[devon.818]

hey if you got the same question join the party!

btw these are 19lb injectors i am looking at.

[StuntDrivin4U]

hey if you got the same question join the party!

btw these are 19lb injectors i am looking at.

yeah those are the stock injectors, im buying 23 lb injectors for my fox when the engines complete

How much you find those injectors for?

[devon.818]

havent made an offer yet, want to know if i need to buy the MarkD chip first.

[StuntDrivin4U]

gotcha

[Myster-E]

A stock m20 does not need that much fuel. I would put m50 injectors instead. They are 17.5ib. which is more than enough fuel for an m20. Honestly, I would recommend another chip. The Mark D chips suck.

[Adrian_Visser]

I am curious of this as well as I have a 5.0L mustang with the engine out right now getting rebuilt.

Only difference is I have a 325e 2.7l man

not to thread jack man! curious

The eta engine uses low impedance injectors, Mustang injectors are not compatible.

A stock m20 does not need that much fuel. I would put m50 injectors instead. They are 17.5ib. which is more than enough fuel for an m20. Honestly, I would recommend another chip. The Mark D chips suck.

I agree with you on not needing 19lb injectors on an otherwise stock engine but what's wrong with the MarkD? I have never heard a bad thing about it from anyone, myself included when I had an m20.

[Myster-E]

The Mark D chip has a bad idle and it also has trouble starting. I'm running a e/i hybrid m20 with a nicely worked head and a nice cam with the m50 inj. and a $30 ebay chip. Honestly, the ebay chip is way better!

[Adrian_Visser]

Is the chip specifically tuned for a cammed m20 stroker with head work and 17.5lb injectors?

[Myster-E]

The Ebay one? no

[Adrian_Visser]

I meant the MarkD. I'm just surprised you had a bad experience with it.

[Myster-E]

We used two different mark d chips in four or more e30s and they all had the same problems. everyone says these chips are the shit but I wouldn't run this chip if it was free.

.02

[devon.818]

We used two different mark d chips in four or more e30s and they all had the same problems. everyone says these chips are the shit but I wouldn't run this chip if it was free.

.02

so you're saying just go get the 17.5 injectors and a ebay performance chip?
i like that idea, well my wallet does atleast!

[jlevie]

I agree with you on not needing 19lb injectors on an otherwise stock engine but what's wrong with the MarkD?

There's no advantage to eny upgrade of injectors on a mostly stock M20B25 engine. The stock injectors have sufficient head room to achieve 12.5:1 (which is richer than you want to be) across the entire operating range if the rest of the fule system is working like it is supposed to. A race car would see 12.8-13:1 and that is easy to reach with a WAR chip or similar. A mostly street car is better served by about 13.5:1.