Fuel Injectors

[tccrab]

Originally Posted by Z51JEFF

I need to replace the injectors,no getting around it but which one?What makes RCs worth twice as much as Accels?Ive heard some horror stories about the Accels,I dont want to do this twice,so I call the tuner everybody trusts and he tells me hes installed over 50 sets with no problems and since his word is golden,Accel it is.Now I call Summit to order a set and they havent got a clue and the guy tells me Accel doesnt make an injector for a ZR-1,plus I want a direct drop in with no mods.Ill call Accel tomorrow and get some info.Im not looking foward to this but it has to be done.How much of a hassle is it to get the cam covers off?

Why would you need to take the cam covers off?


TomC

Originally Posted by Z51JEFF

How much of a hassle is it to get the cam covers off?

Here you go.

http://www.pnwzr1.net/LT5_tear_down2.htm

[tomtom72]

Originally Posted by tccrab

Why would you need to take the cam covers off?


TomC

I smell a powder coating job coming!

[tccrab]

If you order the Accels from JeffVette and ask him *VERY* nicely, I'm sure he'll remove the tabs for the primaries.

Won'tcha Jeffie???
Specially since it sounds like he's sending his top end to you for a powercoating...

TomC

[Z51JEFF]

Originally Posted by Jeffvette

Here you go.

http://www.pnwzr1.net/LT5_tear_down2.htm

Thanks for the info on this Jeff.

[SillyB]

First I wanted to say thanks to everyone who contributes their vast knowledge to this board.

I just replaced the injectors in my 1990 with the Accels from Atlantic Speed Performance Parts (and got my free shirt with each set.) Also from the recommendations I got scouring the boards I changed out my plug wires and fuel filter and reset the ECM. I am amazed at how much of a difference it made! My Z only has 35,000 on it so I felt like it was still pretty fresh - but now it jumps like new again!

Also, I spoke to Jeff at PNWZR trying to buy the injectors and Marc Haibeck trying to buy the illusive O rings for the primary injectors, and they both confirmed that there is no need - you just use the stock GMs that are in there already. Also both of those guys were very friendly and helpful. Thanks!

[ZWILD1]

Hi ,
Thanks for your post. I am installing new injectors I got from Kurt White. Was not sure about which groove at the top of the injectors to use and then I remembered your post.

[Hammer]

I have an opportunity to buy some injectors from a '93 ZR-1. I have a '91 that needs some injectors and am curious if the '93's will fit. Any comments on this?
Thanks

[Polo-1]

93's are 405 motors. 8 will fit, 8 will not.

[Aurora40]

They will fit fine (assuming you mean factory stuff from '93). However, since the '93 seals on the end, and the '90-92 seals around the body, you will need new o-rings for the injector housing. They are slighty bigger than stock because the '93 primary body is slightly narrower than the '90. Marc H sells them pretty reasonably, possibly others sell them as well.

I have '93+ injectors in my 1990.

You might also want to clean them up a little since now part of the body will be sticking into the sealed or clean side of things.