I'm looking at getting injectors and am tring to decide if i should but the whole injector or just the nozzles. is there anything i should look for with my injectors to know if i should buy the whole injector or if i can use nozzles. Thanks

 

You can use just nozzles if you have access to a Pop-Pressure Tester so as to set the injection pressure.




While all the nozzles out there should be identical in dimension, things are sometimes off a little. Watching the gauge on the tester while flowing diesel fuel tells you if you need more shims, or less, under the spring in the injector.





There's a gazillion different shims and combinations of shims available to get all the injectors to Pop at the same pressure. (small thing in the black square)


Stole this image from Smokem



It is important to have them at pop at the same pressure.





Or you can get complete injectors that are already set-up. (You'll typically have to send your old/used injectors in as Cores so don't damage them).

 

ok thanks I have access to a pop tester. Where do i get the shims?? Sounds like nozzles will be the best way for me. Thanks for the pictures

 

BC have you ever lit the spary from the Injectors whene testing then it make a nice fire ball

 

Dunno. I've looked online and can't find any. Those in the buesness arn't giving up any secrets and seems like I've heard they can be purchased, but they're $4(+/-) each. Seems I recall they can be had in 0.003" increments.
I got lucky and was able to borrow a large selection from a fella.


Nah, My Dad and Brother both have substantial scarring from them or somebody else playing with fire.

Besides, with me being a former FF/EMT-D of 14 years, the wife and both daughters on the same FF/EMS dept still, one the daughters being a 911/EMD op and the other a full-time paid FF/EMT-D . . . . . I'd never hear the end of a "Hey y'all, watch this" . . . .

 

I've herd that Hot cams shim kit for KTM 250 450 and 525 dirt bikes. fleebay has them for like $50 for the kit. hope this helps

 

VERY interesting! Thanks for the tip.