SARD Injectors in at Last

[Steve]

The guys name is John Hurley,

6 Little Rundle St

Kent Town

08 8362 4906

For the life of me I just cannot remeber the name of the joint sorry. Make sure you let him know that you want the injectors flowed and rated comparatively, ie 1 to 6 and ask him to mark the injectors properly, I had mine engraved with a number so no confusion:)

EDIT: tuning will most probably be done by D1 Garage (www.d1garage.com)

[Gradenko]

Originally posted by Steve

3/  To remove the stock injectors from the rail, if you twist the injector to free it a bit, then spray crc or similar - they still dont come out very easily.  I ended up just tapping the pintle with a hammer and out they popped.  Either that or be prepared to get really frustrated.

I removed the rail and tried lightly tapping the pintle with a socket and malet, but the plastic pintle surround shattered. I think the surround was there to help the spray pattern.

Did you cause any destruction using a hammer on the pintle? I'm not replacing injectors, just removing and cleaning.

[B-Man]

I was told by my local guy that you caqn leave them in the rail to be cleaned , tested, flowed. Apparantly they have mobile injector dudes that come around and do everything on the spot.

[Steve]

No damage, except to the platic things. I was told by the mech that was helping me that they are quite cheap to replace.

Doesnt hurt to saturate the injectors with a bit of CRC as well:) But even then the little buggers just dont want to come out until I used the hammer.

[Gradenko]

B-Man, leaving them in the rail is just a chemical clean which works but isn't the best way to clean injectors. I'm removing them to have cleaned ultrasonicly and replace worn seals.

A friend came over and managed to pry them out of the rail with a wide flat head screw driver. Took a while to get the technique down but they popped right out once he had it figured out. Most of the plastic things survived too . But they are cheap to replace.

[GTS-t VSPEC]

Gradenko, Glad you finally got them out, my mate said there very hard, and CRC and persistance are the only way. Seems like we're throwing out my side feed rail, and putting a top-feed in:D

[Steve]

Gradenko, I tried to be gentle, but maybe impatience got the better of me, cos I snapped the plastic bits off the top that you put the screwdriver into:D

Good to hear you got it sorted, how much did the little plastic joeys end up costing each?

[rusty666]

www.uniqueautosports.com sell nismo 555cc injectors for $330 a pop

[B-Man]

I tried taking my Hi-Flow injectors out - no way were they coming - Fark that - I'll let the dudes who put the new proper injectors in do that !

Steve, did you go 550's ???

Cheers,

[Steve]

Yep 550cc.

[MattR]

Hey steve what the the 550's good for? ive got them but dont know there limits. Cheers Matt

[Steve]

The rule of thumb I use with 6 cylinders is cc=bhp, so 550bhp. Also they should be good for an easy 600bhp, but may need to use afuel pressure reg:)

[Gradenko]

Originally posted by Gradenko

But they are cheap to replace.

Originally posted by Steve

Good to hear you got it sorted, how much did the little plastic joeys end up costing each?

I may have spoken too soon. The injector cleaning place I went to said pintle caps to suit our injectors are hard to find. Not too big of a problem though, the pintle caps are just there to secure the lower o-ring, they don't affect spray pattern at all.

The injector guy ended up modifying pintle caps from another injector type to suit. It looked like it'd do the job but a couple of the injectors popped out when I tried test pressurizing the rail at home. It may have been because I didn't screw the injector caps back on, but I think the injectors should make a pretty good seal with the rail even without the injector caps on. Any one know?

[Gradenko]

I now officially hate side feed injectors.

Don't damage the pintle caps when removing your injectors, there are no replacements available! It probably won't matter if you are careful though, half off mine were broken even before I removed them from the rail. Found a new injector guy who's trying to make custom pintle caps for me. Hopefully these ones will seal properly.

[B-Man]

The pintle caps are the little plastic bits that 'claw' around the bottom of the injector right ????

What affect does broken pintle caps have on the injection system, pattern and flow ? ??

The reason I ask is because ALL of my pintle caps were broken when I pulled my injectors out to take a peek !

[Steve]

Just as long as bits weren't missing, cos then you got to wonder where they went!

[B-Man]

Surely they would have just melted into oblivion if they came of in the head ???

[Steve]

Probably, but I dont like the idea of any foreign body entering the combustion chamber, could have quite an effect on how the mixtures burn, may produce hot spot or something? bits of plastic residue on the pistons/cylinders cant be good.

[Steve]

this is purely speculation:)

[B-Man]

I agree actually - can't be good ;-(