onetrackmind

I did the search, that just raises more questions. I need to replace my injectors, It seems that most on the forum agree that the fords are the way to go. What size do I need for my stock 85? Is there a certain model that is better than another (ford)?

MrNuke

Stock injectors were 24lbs@35psi..

RRT vette

22lbs is stock size. Unless you plan on doing mods I would go with the 22lbs.

RRT vette

I have 24# injector in my 86. It runs rich to start with but I plan on doing some modification to my engine in the near future.

onetrackmind

I just want to keep it stock for now, but running as good as possible.

vader86

85 injectors are 24lb/hr, but rated at a different psi than the later injectors for L98.

You can get Ford SVO #24s and an adjustable regulator.

onetrackmind

I'm ordering the #22 from Five O. thanks.

MrNuke

Ok .. SO guess you don't care that your mixture WILL be off and run leaner? Let me repeat myself..

STOCK '85's came with 24LBS@35PSI fuel injectors..

onetrackmind

Don't get upset, thats what they show on the site as the OEM replacement. Thanks.

MrNuke

I'm not, but they are wrong..

onetrackmind

And Nuke that is a sweet looking 85 in your profile.

MrNuke

Dude.. I just bought teh white one, It's a 92.

I've owned my other vette, an '85 for 11 years..

I suggest you search the forum about what size injector the '85 has and you will find tons of posts confirming what some of us are telling you..

On the other hand, do whatcha want, but then don't ask people for info if you won't take it ...

onetrackmind

I was referring to the 85 in your public profile. And the point is taken I do appreciate your input and I will try to verify the size, on the other hand Vader said I would need an adjustable regulator and RRT said his car runs rich on the 24's, the Five O website said 22, so I am back to were I started when I did the search. All the other threads on the this subject are the same, no one agrees. nuff said.

vader86

Yes the 24s are for 85, but the 22's that were used in later years are basically equivalent, the difference is the PSI where they were rated. Therefore the computer can adjust between the 2, and you shouldnt run rich or lean.

I always recommend an AFPR, that way you might fix any problems you have in the future (barring failure) with the A/F ratio. The computer can adjust to the larger 24lb Ford injectors, it just needs a bit of help that the AFPR provides. Not everyone will have problems with the larger injectors running rich, or else we wouldnt be recommending you use them.

MrNuke

Halleluya..

The only addition I have is that, the '85s had the lower psi injectors, the later were rated at 22lbs at higher, 38psi I think. So at stock FuelPressure of 35psi, a 22lbs injector will only be running 20.5lbs/hr..

onetrackmind

Thank you both, a logical explination helps alot. So thanks again.

CentralCoaster

Um... apples to apples, the 85 injectors are higher flow than the 86 injectors.

If you have an AFPR you can run 86 injectors at the 86 pressure on your 85.

If you run 86 injectors at the 85 pressure, you won't get enough fuel.

RRT is running 85 injectors at the 86 pressure and getting too much fuel.

Aw ****, I made it more complicated.

onetrackmind

No really, I get it. Thanks

js292

24# Ford injectors @ Jegs $194

onetrackmind

Thanks thats about 65$ less than FiveO. I'm ordering them now.