Author Topic: injectors (Read 6435 times)

kowalski · « **on:** March 10, 2006, 08:03:35 PM »

so what would be a good injector to upgrade to, im looking for the area of 24#'s or so. im wondering where to find a set, what engines came with them, and where a good price would be for them.

m42 fan · « **Reply #1 on:** March 10, 2006, 08:08:12 PM »

I was under the impression that unless you are going the fi route, 19# units from mustang 5.0's are all you really need. I don't know what your plans are, but 24# might be a little overkill.
Brian

asubimmer · « **Reply #2 on:** March 10, 2006, 08:27:50 PM »

I'm pretty sure he's going the FI route

send me a PM if you want the contact for the guy I bought my 24#ers from

m42 fan · « **Reply #3 on:** March 11, 2006, 07:15:37 AM »

Got it. 24# definately then.
Brian

kowalski · « **Reply #4 on:** March 14, 2006, 12:05:10 AM »

Quote from: m42 fan

I was under the impression that unless you are going the fi route, 19# units from mustang 5.0's are all you really need. I don't know what your plans are, but 24# might be a little overkill.
Brian

the stock ones are 21#'s. i have 19#'s in my car, and realized this the other day...

and about the FI, who knows what this summer holds for my m42.... its all dependant on whether i score the job im shooting for.

asubimmer · « **Reply #5 on:** March 14, 2006, 12:08:24 AM »

someone told me stockers for a m42 was 17#? I don't remember who though so I guess its not reliable

bmwman91 · « **Reply #6 on:** March 14, 2006, 12:36:57 AM »

I am 90% dure the M42 stockers are 17#. They are the same PN as M30 injectors.

kowalski · « **Reply #7 on:** March 14, 2006, 03:12:20 AM »

Quote from: bmwman91

I am 90% dure the M42 stockers are 17#. They are the same PN as M30 injectors.

i was talking to another guy yesterday and he looked up the P/N for the stockers and they were 20.5 lbs... but that was a euro car. i could be wrong then??

m42 fan · « **Reply #8 on:** March 14, 2006, 06:59:17 AM »

Quote from: kowalski

i was talking to another guy yesterday and he looked up the P/N for the stockers and they were 20.5 lbs... but that was a euro car. i could be wrong then??

Sounds like we have just discovered some more euro parts to start importing

Otherwise, I was prety sure also about the stockers being #17 also.

Brian

tim_s · « **Reply #9 on:** March 14, 2006, 10:07:04 AM »

It was me who was telling kowalski about m42 injector flow-rates.
put your injector part numbers up and i'll check them out, kowalski didn't give me his so am not sure whether yours are the same.
hth
tim

dino245 · « **Reply #10 on:** March 14, 2006, 11:56:04 AM »

the stock injectors for the US market are the same number and are thus the same flow rate. I thought the M3 injectors were better but after much research I found that they are actualy 17.5lbs/hr at 43.7psi (3 bar)
and the ford mustang injectors are rated at 19lbs/hr at 33.5psi and 20.5 at 3 bar. the reason for using the mustang injector is for the 4 pintle (hole) nozzle which atomizes the fuel better and produces a better burn and thus more torque. The stock injectors are only one pintle and since most of use have cars over 100k, they could use a cleaning any way. Becareful which mustang injectors you buy or look at because there are early ones that dont have a 4 pintle nozzle but the older single pintle.

Now just a footnote think of the difference in dispalcement of the 5.0l mustang and the little 1.8l M42, these things are made to make HP and rev.

bmwman91 · « **Reply #11 on:** March 14, 2006, 12:12:06 PM »

What year mustangs had the 4-pintle ones? I am down to try out some 20.5# ones (out system is 3 bar right?). I put the M3 ones in (4 pinthe as well), and really did not notice much power increase...it DID run smoother though with the better atomization.

dino245 · « **Reply #12 on:** March 14, 2006, 12:59:56 PM »

I dont have the year butif you look on ebay or any one selling injectors on the net ask first if they are 4 pintle.

tim_s · « **Reply #13 on:** March 14, 2006, 02:07:57 PM »

you can't be serious that you'd prefer to run injectors with the wrong flow rate just cos they have 4 pintles! thats nuts!
running 19.5lb injectors will lean the fuelling off even more than our horribly lean factory setup... forget the 4 pintle thing, it makes very little difference - have you ever seen injectors on an injector tester? the difference between a 4 pintle and single is really slight. more important is to make sure the injectors are firing in a nice shape - any clogging or dirt means they 'spit' all over the place. also the 4 pintle ones clog easier. agreed though that clean injectors are important.

kowalski · « **Reply #14 on:** March 14, 2006, 07:05:07 PM »

Quote from: tim_s

you can't be serious that you'd prefer to run injectors with the wrong flow rate just cos they have 4 pintles! thats nuts!
running 19.5lb injectors will lean the fuelling off even more than our horribly lean factory setup... forget the 4 pintle thing, it makes very little difference - have you ever seen injectors on an injector tester? the difference between a 4 pintle and single is really slight. more important is to make sure the injectors are firing in a nice shape - any clogging or dirt means they 'spit' all over the place. also the 4 pintle ones clog easier. agreed though that clean injectors are important.

whats wrong with the 5L mustang injectors? your confusing me a bit on this... i'm heading to the dyno soon hopfuly, and im gona get myself an adjustable FPR and see if im running lean or not. where can i get a decent FPR for a reasonable price, or does anyone have one for sale?