for an 86 stock GX what size and amp fuel injectors can I use? I am not going to be doing any upgrading for a while except maybe a cold air intake and it does have custom exhause but still all the cats. I would just like to know what would work and if there are any cheap ones around?

 

for an n/a, unless you are HEAVILY modded there is no reason to upgrade your injectors. You would only be decreasing power.

 

Oh, yeah. An S-AFC can let you lean out the mix a bit, but you simply don't *need* bigger fuel injectors.

 

I meant that mine are bad and I need new ones so which sizes can I look to get?

 

Oh. 440s.

 

if I did happen to find some other sizes for really cheap are they ok?

 

Stock NA injectors are 460cc/min. If you go any bigger than that you'll just run very rich and lose power.

Why do you need four new injectors? It's unusual to find an injector that can't be reconditioned to near-new condition. I've never heard of anyone needing to replace all four...

 

well I found some injectors for 40 dollars a piece and I haven't found a good place to rebuild mine anytime recently...Mazda dealership quoted me 700 to do it all for me...I said no If you know of any good places though for rebuilds that would be really cool

 

Check out RC Engineering's website...they are a very well known company.

 

Send them to a company like RC Engineering, or look in the yellow pages for someone local. Any EFI specialist will do it (or send them out), or you could try diesel service companies. Some will do petrol injectors as well, and are often cheaper than EFI places.

 

I phoned a bunch of places and they say they will only do a purge which is running straight cleaner through the whole fuel system...would that work to clean them properly. They tell me it should but that sounds too easy.

 

Just send them to RC or some company like that. My friend had his cleaned for around 60 dollars at a place like that.

 

Take a look see at this injector cleaning link. Several posts in past have good words.

http://www.cruzinperformance.com/fuelinj.html

 

just stay with the normal 460 injectors no need for bigger