are these injectors tt? or na?

[300zx1316]

awsome deal on cls for the entire set i think im in need of new injectors, i have another thread that is still up but let me kno if u can tell then differance and or if they are tt or na?

[evildky]

you can send them off to be flow tested at an injector rebuilder, I see you have the injector pigs int he pic, are there numbers engraved int he bottom of the injector plugs by chance? the deatshewerks 555's are red in color, not sure what color the z32's with the newer style injectors came with

[tg]

Looks like 94+ TT injectors, but i could be wrong.

[GsaSlick]

they look exactly the same from the views i can see as the ones in my 94 N/a engine, but i too could be wrong

[300zx1316]

Looks like 94+ TT injectors, but i could be wrong.

both gsaslick and tg are both correct about the year they are off a 94, so gsaslick u think its off n na? how can u guys tell its off a 94?

[GsaSlick]

the shape of the plug tells me that they are the "new style" as it's rounded where the connector plugs in, my understanding is the old ones on the n/a from 90-92 and the 93 vert were the "old style" which had rectangular connectors i'm pretty sure the years differed a bit on the tt. the only reason i think they're n/a is because they look just like mine, but i did some searching around and it seems that's a common appearance for both models and even for some 740cc injectors look the same way. Obviously they're not 740cc, but as far as tt or na i don't know of a definitive way to determine other than if they're 270 or 370 but i don't think they're marked as such.

old style

[valkyie]

From reading threads on this site I learned that Blue = turbo 370ccRed = NA 170ccYellow = 555cc nismoThe shape of the injector tells what year it square 90-92 and oval 92 and up.

If you are not sure find a part number and call your dealership.

[300zx1316]

thnx guys, ill probably go for them thursday or sat! ill get the part # and call the dealer to see whats up

[aidanair]

From reading threads on this site I learned that Blue = turbo 370ccRed = NA 270cc <<<<< FixedYellow = 555cc nismoThe shape of the injector tells what year it square 90-92 and oval 92 and up.

If you are not sure find a part number and call your dealership.

[Z32mike]

From reading threads on this site I learned that Blue = turbo 370ccRed = NA 170ccYellow = 555cc nismoThe shape of the injector tells what year it square 90-92 and oval 92 and up.

So I'm reading up and absorbing as much as I can, I'm new to the 300zx family I have purple top injectors and the previous owner claims they are aftermarket, I'm pretty sure they were spherical. I really have NO idea what CC injectors they are any one have a clue ? My model is a twin turbo manual and it idles like s*** .___. but it runs hard and it has like 155 compression on all cylinders. Any one can give me a little insight? I also don't think its been tuned ! So maybe they are larger injectors and thats why it cant idle ? I trouble shot most of the sensor possibilities already.

[z32loverboy]

Create your own thread to discuss this. It'll be alot easier to help that way.

[300ZXttZMAN]

This^

Welcome to NICO, props for searching. In this particular situation it is best to make a new thread post pictures of the body and look for a Nissan burger on them also take pictures of the plug.

We really can't do anything without pictures for this situation because the OEM injectors are known to fade to various colors ect.

Check out this link and you will see why we need pictures. This link might even answer your question completely.
http://z32.wikispaces.com/Fuel+Injector