K, well i never seen a 5.7 injector before only ones for a 305 so i would like to know if this is one...and also how do you change the O-ring on the pintle end.




[This message has been edited by 87POSGTA (edited June 14, 2001).]

[This message has been edited by 87POSGTA (edited June 14, 2001).]

 

without seeing what you have a 305 is black and purple color and almost straight.
the 350 are greenish gray color and fater.
the O rings just pull off and stretch the new on both ends if needed.
to take the injector off turn the retaining clip around and pull it out of your fuel rail. hope this fill help.

 

K ppl i need to know of these will work with my TPI set-up. they are supposedly from an '88 vette.

 

Theres no way by looking at it to tell what size it is. You need to get the part number off of it and look that up.

 

didnt all vettes come with 350s? if so then its a 22lb injector.

 

i know its a 22# injector but the nozzles from my 305 look different. al the ones i 've seen have a rounded nozzle end but these are cylindrical @ the end

 

How the nozzle looks makes no difference in what it's rated at. I pulled Lucas 19LBers from my 305, sent them to Rich at cruzinperformance and he sent me Rochester 19LBers back. The Lucas injectors had the rounded nozzle whereas the Rochesters have the cone shaped nozzles... both are rated at 19LBs though. You really can't tell just by looking at the pic, you need to cross ref the part # to find out for sure. For all you know, they could be 30LB injectors that the previous owner of the vette had put in.

The best thing to do before installing them is to send them to cruzinperformance (www.cruzinperformance.com) and have them cleaned and flowmatched. Often Rich is able to send back a set that flows better than brand new ones out of the box because his tolerances are a lot tighter than the manufacturers. You'll get them back in less than a week. Good luck.

------------------
Kevin Irving
85 Trans Am WS-6, 305 TPI, custom burned '86 PROM with '87 "165"ECM, Accel Supercoil & 8.8 Wires, Rapidfire #2 @ .055", MSD 6AL, 1.6:1 Roller tipped rockers, Homemade AFPR, K&N cone, no airbox, Aluminum Driveshaft, Wonderbar, TB Coolant Bypass, Ported Plenum, Descreened MAF, Syclone Fuel Pump, JET Airfoil, Mobil 1 synth in all but transmission.

http://www.geocities.com/transam85tpi/

 

I agree with what others have said about cross referencing the part number for the actual size of the injectors. That will tell you exactly what size they are. The nozzle design doesn't matter but I have heard that the conical ones atomize better than the other style nozzles - they create a better flow pattern by protecting the fuel spray when it first leaves the nozzle. I don't know if I buy that 100% but whatever.

As a side note: I have the stock injectors (As far as I know) in my GTA (350) and they look exactly like the one you have the pic of.

Laterzzzzzzzz

[This message has been edited by Matt87GTA (edited June 15, 2001).]

 

BWAHAHAHAHA! You sent in Lucas/CAV injectors and got back Rochesters?! Man, Rich must have been feeling extra generous that day. The Lucas/CAV injectors are probably just good enough to get the car out of the showroom. Man, did you make out! Did he charge you extra for the Rochesters?

------------------
Later,
Vader
------------------
"Let the bodies hit the floor!"
Adobe Acrobat Reader

 

Lucas, Prince of Darkness.

 

Yup, almost as good as the Multec injectors - ...for me to POOP on!

------------------
Later,
Vader
------------------
"Let the bodies hit the floor!"
Adobe Acrobat Reader

 

Nope, just the same fee he charges for swapping out injectors. Maybe I lucked out because he throws the Lucas injectors in the trash and that's why he didn't have an 19#er to send me to match my other 7. I will never hesitate to use Rich's service, not even when it comes time to send in the wife's F@rd Escort injectors for cleaning.....