Is there any real benefit to the 4-holes? I thought they both go into 1 needle?

 

4 holes allows for better atomization

what that means to the butt dyno is anyones guess honestly.

All things being equal, i would take the 4 pintle type if they are available.

 

I spoke with the guys at ford racing and they told me there was no difference between the ford racing injectors and the regular 19# injectors. I even called another time and spoke with someone else in order to verify this. I think any design II ford/bosch four hole 19# injector will work but you need to verify it has four spray holes since the single hole and the four hole look alike. I'm not sure the design III will work right with the top rail clips. I'm getting better gas mileage and better response in my GT. Now that Roger is selling the proper bottom o-rings I don't know why anyone would choose to rebuild their old ones.

 

I'm getting a little confused with all the injector part numbers flying around.

When I order new Ford injectors for my '88 S4, what Ford number do I need? Where can I order them from? Do any of the Big Three sell the Ford injectors?

Thank you,

H2

 

Yup that was kinda the point with this whole thing.
Looks like the design II 19# four hole injector is what we need. for 87 and up 928 s4.

 

The numbers from the new ones I bought are: FOTE-D5A, the bosch # is 0 280 150 943, I also have an extra low mileage used set from a 2004 mustang that have the numbers FOTE-9F593-D9B, the bosch # is 0 280 150 561 and they have pink tops and are rated 19#. I put these in the GT after the intake refurb and they ran great for a while till the engine suddenly died. I put the new ones in just in case but it turned out to be a ground problem.

 

Got it . the design II's are FOTE D5B BOSCH# 0280150556 Out of a 2001-96 mustang GT
The Design III's ( F4SE A1B BOSCH# 0280155700) I guess will work but need a slight modification for the clip at the top. ( what that modification may be i don't know).These are both four hole type.
Just trying to clarify what has been for me a very confusing subject.

 

I spoke to FiveO late last week and they advised the Design III's were a direct replacement for the II's. I'll call them later today and double check.....

Would be good to get a definitve answer....

 

i'm running the III's.

if you have the injector and the fuel rail in your hands, put them together and you can see the groove for the clip isn't in the right place.

you need to use a dremel (with one of the THIN wheels that come with it) and cut an extra groove around it for the clip. it takes a little time to grind 8 injectors.

 

Thanks for the info - Looking at the 2 pictures below, the top one is the Design II's and the clip groves are clearly visible. The bottom picture is the Design III's - is the black line somewhere close to where the groove needs to go? How did you accurately cut the groove in the right place and correct width for the clip?

 

pretty sure i just put the injector (w/ o-ring on) in the fuel rail socket and then used the clip to make a mark on the injector body. i then cut the groove (both sides) where the mark was. repeated on the other 7...

i'll check when i get home, but i don't think mine look like that, i think i have these:



i was right, these are what i have installed:

 

Ok so whats the best source for these Design II injectors now?

I was considering having mine cleaned and balanced but that will cost $150 and i think i can find new or already rebuilt Design II's for that price if not slightly more.

So where do i buy them? I want the 4 pintle type which leads me to design II and III, but i dont want to have to modify things with a dremel do i guess its design II for me. Where do i get them and what do they cost? I want to pay less then the $300 i see on five-o's website.

Thanks

 

Ok so whats the best source for these Design II injectors now?

I was considering having mine cleaned and balanced but that will cost $150 and i think i can find new or already rebuilt Design II's for that price if not slightly more.

So where do i buy them? I want the 4 pintle type which leads me to design II and III, but i dont want to have to modify things with a dremel do i guess its design II for me. Where do i get them and what do they cost? I want to pay less then the $300 i see on five-o's website.

Thanks

 

You are probably unaware but there are a couple things that incorrect in your post. Injectors can not be rebuilt (only cleaned) and they can not be balanced either 9not they way they make you think). They can measure the flow on a bunch of injectors and put a matching set together but if you are expecting to get back the same injectors that you sent out, that won’t happen. Injectors can not be taken a part so the best they can do is clean it but the moving internal parts will remain the same. The “rebuilt” injector will look new on the outside (freshly painted with new O rings, pintle cap and filter) but internally it will be just as worn as it was before (only cleaner). They can refurbish it but not rebuilt it. Going with a brand new set it the way to go.

 

OMG your not serious?

i got into a discussion with you about "Injectors cannot be rebuilt" years ago!

YOUR SERIOUSLY CARRYING ON ABOUT THIS ****! ?

SERIOUSLY! COME UP WITH SOME NEW MATERIAL! YOU ARE ON ALL THESE INJECTOR TOPICS WITH THE SAME ****! Still carrying on with the same old song and dance! DAMN DUDE

YES YOUR RIGHT the verbage could be changed. Rebuilt, refreshed, replaced, balanced, WHATEVER but you get the damn idea!

AND PLEASE, enough with the injectors cant really be rebuild BS! WE KNOW, YOU TOLD US 10000000 times before