Alot of people are using them and say
they work fine, I have also heard they have a
very loud ticking sound, is it louder then
the stock injectors.

 

i have them on my car and they work fine.

 

Best and cheapest replacement you can buy. Period :-)

Will need a Inj constant change in a stock 350 chip if u run 24#'s however :-)

later
Jeremy

 

Yeah mine are working great, might be a little more noisey, hard to tell over all the other sounds

Ford rates the #s different than GM though, just like 3.8TransAM said. Bascially my PROM is programmed with a constant for 29lb injectors even though I only have the SVO 24lb

 

No,

Ford Injectors flow the advertised rate at 43.5 same as GM.

This has been discussed, beat to death and proven in testing.

To run a 24# SVO injector on a stock 22# GM 350 TPI car, I have found the best injector constant to be 23.8. This is on a bone stock car with the exception of a catback and my own tuning.

later
Jeremy

 

How do I change the injector constant?

 

wow....how increadibly confusing...i have a LOT to learn

 

The simple answer to your question is:
Your computer needs a way to recognize the bigger injectors or you will be running way too rich. Check out the prom burning forums.

This thread will help you. Keep in mind that it is about a lot bigger injectors than you are planning, but it involves the same concepts.
https://www.thirdgen.org/techbb2/sho...ector+constant

 

on this forum ive researched and Ford employees as well as other guys have said Ford rates them at 38.

 

Don't believe everything you read and hear...believe proof positive testing that you see from an independent lab. I have, they are all rated the same...

 

Yes, key part of the phrase taken incorrectly.

Ford rates them at 38psi

Ford does use 38psi in it cars.

But all the injectros true flow rating IS DONE AT 43.5PSI, SAME AS GM.

A Ford SVO 24 is a GM 24 , etc and so forth.

I have done independent testing on my own almost pure stock cars and proven it, where do u think the 23.8 IC came from?

later
Jeremy

 

Random number generator maybe?

Wasn't talking to you with my comment anyway...

On a side note...per your statement...If Furd rates them at 38 psi, why do they sell them as 24 lbers and not some higher number. Ford SVO boxes say 19 lbs or 24 lbs...not 23.8...it's not like the 'real' world has redesignated something besides what the box says.

 

Ok since this is just getting stupid and I keep repeating myself with this same question on three different boards.

GM PASS. VEHICLES USED 43.5 FOR MOST OF THE 80'S AND INTO THE 90'S

FOR FORD, THEY USED 38-39PSI IN THEIR VEHICLES IN THE SAME TIME SPAN.

THE SVO INJECTOR FLOW RATE IS BASED ON THE STANDARD 3 BAR(43.5PSI) PRESSURE WHICH IS WHAT GM RATES ALL OF ITS INJECTORS AT.

THAT IS WHERE THE CONFUSION COMES FROM PLAIN AND SIMPLE.

ACTUAL FORD PASS. CAR INJECTORS, I CANNOT SAY, BUT I KNOW FOR A FACT THE SVO'S ARE RATED AT 43.5 SAME AS THE GM EQUIVELANT

THIS HAS BEEN BEAT TO DEATH ON THE PROM BOARD AND TPI BOARDS, IF SOMEONE CARED TO DIG IT ALL UP WITH A SEARCH, THEY WERE ACTUALLY SEVERAL POSTS WITH FLOW TESTING AND RATING ON VARIOUS DEBATED INJECTORS AND GUESS WHAT?

THE SVO INJECTORS ARE WHAT THEY ARE ADVERTISED, WHICH MEANS THEY ARE INDEED RATED AT 43.5

IF ANYONE WANTS TO ARGUE THIS, PUT SOME SVO 24'3 ON A STOCK TPI CAR. THEN TELL ME WHAT YOUR BLM IS. IT WILL DROP, IT WILL RUN RICH.

LATER
Jeremy

 

Heres a flow tested example of what I am saying:

https://www.thirdgen.org/techbb2/sho...hreadid=219294

 

I read somewhere that you need GM O-rings on the Ford SVO fuel injectors. Does anyone have any experience with this? Can you buy GM O-rings?

 

Need? I'm not sure you *need* to, but you can certainly buy GM O-rings. I did, for my SVO 30 lb/hr injectors. GM Part # 17113544. It has the top and bottom o-rings. There are some other plastic rings in there that didn't seem to match anything on the injectors, so I didn't use them.

I used these injectors and o-rings in my Holley Stealth Ram and have had no issues. Hope this helps..

-Dave

 

interesting...my car isnt a stock TPI car so to speak anymore...but my fuel pressure right now is at about 48 pounds without vacuum right now. so about 42 with vacuum...using the Ford 38 psi rating, my tuner calculated an injector size of about 26#. My BLM likes to run lean, in the 140 area i believe...is the injector constant the reason why?

 

the older SVO injectors ahd larger O-rings(gm size)

the last 3-4 yrs that I know of and have bought use a slightly smaller o-ring.

I have replaced them with a gm o-ring kit just to be on the safe side in my own personal vehicles.

IC being to high(lean) could very well cause that.

Do a search for correcting IC to fuel pressure and u will find the calulation that u need to verify with.

later
Jeremy

 

That must explain why when I swapped from 22# injectors to 30# SVO's and set my constant to 30 from 22 it ran rich as hell. Funny, use the conversion factor for the difference in pressure, set the constant there, and it runs like its supposed to with BLM's back in line.