83Firebird420

so i finally got to the point of installing them and after arm wrestling the old basterds out i knoticed that my new ones from Jon at Fuel Injecter Connection are about half inch shorter.... the old ones have a slight extesion at the bottom the new ones dont....is this normal? i emailed him and awaiting a reply. just wondering what your experiences are...

Rayvan

They are shorter but they run just fine. Jon modifies them so that can't fall out of the rails. Put a little lube on 'em and just push 'em down as far as they'll go.

Don't use the stock clips.

BTW, my car runs better now, than it was when it was new new.

Mongoose

iTrader: (2)

What type of injectors are you using? I've got Bosch 3 units from Jon at FIC and they matched up perfectly and the dimensions are spot on. Car runs great now since I ditched the OE Multecs.

irocuroc

whats important is the "installed" height. As long as they are the same height when installed as the gm you are good to go. the overall lenth means nothing and that old nozzle on the end of the stock was to help atomize and direct the spray. With the new one you don't have to worry

makinc80

i just installed the bosch design 3's from jon at fuel injection connection yesterday. they are shorter but he modifies the injectors so they fit properly. my car wouldn start after warming up and the new injectors easily fixed the problem. i even called jon to thank him at the shop number listed and he was extremly nice and willing to give any info needed. he listed both a shop and cell number so contact should not be too hard. i recommend the design 3 injector! A+

southbay08

All of this modifying, all you need to do is add an additional o-ring, very plain, very simple, very inexpensive

83Firebird420

thanks guys.
so i shouldnt use the old locking c clips? just press em into rail/manifold and its good to go?

i studied the injectors a little more and they will match up just fine. it was just a little decievign at first seeing the different length.

also Jon is awsome i emailed him last night. he emailed me this morning and then he sent a follow up email a few hours later with his cell# to make sure everything went ok. he has awsome service! more businesses need to follow in his foot steps.

Samdweezel05

iTrader: (1)

Who sad anythig about modifying? You don't need an extra o-ring to install them. They work perfect just the way you got them.

Phil

southbay08

every post I see about their injectors says that they are modified. so educate me what is different about them?
83firebird420 says in his post that they are 1/2 inch shorter than stock, now they
are not???????????????? What am I missing??????

Samdweezel05

iTrader: (1)

They are different injectors from what comes from the factory. The over all length is shorter but the part that matters is still the right length. I got mine last year and have had no problems. I even got them from Jon.

Phil

southbay08

I am very happy that they worked out well for you, that is not the point and I am not trying to give you a hard time, but listen to what you are saying, they are shorter but they are the right length. does that make sense? they are different from the factory? ok, in what way? no one has explained what is so different that makes them the correct length so they can fit. i am truely curious. What is the modification that everyone speaks about? We have sold thousands of the bosch design lll and we continue to do so, we have never had any complaints regarding length so I guess I am just trying to understand.

Samdweezel05

iTrader: (1)

the factory multecs are longer overall. I said it correctly the first time. the factory injectors push in the rail and the intake all the way. The bosch III's push in the rail all the way and then seat into the intake as far as necessary to seal. They do not bottom out in the intake the way the factory injectors do. If you do this backwards they will leak. If you have sold thousands of the bosch injectors, and are on a 3rd gen forum, I am suprised you wouldn't have know that.

Phil

southbay08

Yes I am not only on the third gen forum, I am a SPONSOR of Third Gen! My company is SouthBay Fuel Injectors and I am well aware of everthing that you said and I also know exactly how they are installed...we include a copy of written installation instructions with every set that we sell. I told you that i wasn't trying to give you a hard time and i am not. You know we all try to learn from one another and that is what i was trying to do. I just asked a very simple question a few posts ago, what is the difference between a design lll injector that is "modified" to fit and a regular bosch design lll? No one seems to have the answer, so I am just going to leave this topic alone.

83Firebird420

to avoid all this confusion.... as you can see the old one on the left has that small extension on the end. aparently to help direct the flow. the new one does not require it and has the same installed height.

southbay08

Finally! Someone trying to help me understand. Thank you so much for image because this is going to confirm everything that WE at SOUTHBAY FUEL INJECTORS have been trying to explain for the longest time on this forum and the CAC forum (which we sponsor also). Take a look at our installation instructions and our picture.
Look at where the arrow is pointing to!!!! Then look at your image.

WHAT DO YOU SEE? A SECOND O-RING!!!

We posted these instructions not too long ago and got nothing but grief about the second oring!

Our installation instructions that we include with each sale:

It is a known fact that these injectors are a little shorter than stock. All you need to do is install a second o-rind on the bottom, THIS WILL TAKE CARE OF THE 1/4 inch in the length!!

www.southbayfuelinjectors.com




The way you see this picture is the way our injectors are sold for F150's BMW mustang audi porsche etc. They do not require the second oring because then they will be too "long". That is why we include these instructions along with plenty of additional orings for corvette and camaro owners!
I hope this clears this issue up once and for all!

Samdweezel05

iTrader: (1)

What I find interesting is someone that deals with fuel injectors all day had to ask the question that you asked. I think you allready knew the answer but you wanted to set yourself up for this very informational post you just gave us all. A guy comes on here with a question about installing injectors, that he didn't buy from you, and you turn it into a plug for your own company instead of giving him the info that he needed. When your driving a ford and you break down in front of the chevy dealer and they help you get back up and running it might make you think about buying a chevy. What a way to run a business.

Phil

southbay08

i did answer him, i told him to add an additonal oring, but YOU came back and said that you didn't need one. so who is trying to help who? Besides, as i said we all learn from one another, and if there is something that i am unaware of i am going to ask. It just so happens that firebird was nice enough to explain. I cannot believe how you are turning the tables here. We have been trying to help everyone with these injectors and the installation for over a year and every time we offer the help we get criticized just like you are doing right now! This was not a promotion for my company. These posts are for people who would like the help and benefit from it . And I am tired of people telling me that you do not need an extra oring and that we do not know what we are talking about because other companies have this magical solution for the problem when the solution happens to be one in the same.
These comments from you guys are inappropriate and unnecessary. Help is what you ask for and help is what you get end of story.
Really makes me wonder if this is how you treat other sponsors on this forum. It is a shame that one simple question had to escalate to something like this. Sorry for all of this "misunderstanding". As far as i am concerned i am dropping this subject.

southbay08

since you have been a complete gentleman i would like to explain something for you. The extension on the injector is a pintle cap. The way that you measure a fuel injector to check if they are the same size is to measure o-ring to o-ring. The length does not include the pintle cap.

83Firebird420

thanks for the info. yeah after i looked at them a bit more i saw that once installed they will be the same height and that small extension on the tip is to just direct the spray better.

southbay08

my pleasure. By the way, the pintle cap also holds the oring in place.