Evening all,

As you may have seen from other threads, I'm currently getting an engine build done (2.2 stroker, high compression). I've just had my injectors cleaned and measured (after 100k miles!), and they're a little bit uneven.

Measured rates are 383, 384, 392 and 404. So a good few percent different. They're probably OK for a standard engine, but I'd like to make sure they're as good as possible for the engine build.

I think I've got 3 options:

1. Buy a new OEM set. Well over £1k! Seems a little over the top.
2. Buy a used set, clean them and hope there is a set of four out of the 8 that are even.
3. Buy an aftermarket set. But there are many opinions on which (if any) are up to OEM quality. The only consistent opinion seems to be 'use OEM for NA engines', but it's prohibitively expensive.

What experience do any of you have with similar situations? Has anyone got long-standing experience with aftermarket injectors? Or a source for OEM injectors which isn't extortionate?

Any thoughts appreciated!
Thanks
Chris

 

Guessing you are running some kind of standalone ecu so free to choose from different injectors.
If staying NA and gasoline I would just get a set of something like these https://www.finjector.com/eng/ev14_i...7-p-737927-186
Going to need top and bottom adapters as well if you are using oem rail and intake manifold.

 

You can probably source an OEM set cheaper, have you checked rockauto?

I have asnu but mine is boosted so renders my experience a bit invalid I think, you wouldn't go much bigger than OEM (they are 380cc something like that) so any quality brand like Bosch you would be fine

As you know, pissing about with fuel rail is then needed

Mine have been fine but it does not idle like OEM driving a SC, no amount of fiddling with the tune improves that for me

I don't know who makes OEM but it won't be honda will it?

 

I actually put a big order in with Amayama. Whole load of parts, plus the OEM injectors, for £800 plus duty. Which should end up cheaper than the injectors in the UK! Just a little while to wait, but the engine's away being built anyway...

 

Do a flow test the new injectors as well, might need to mix them with some of the old to get best matched set.

 

Yeh I was thinking the same. In any case, it'd be worth seeing how 'worn' the old ones are.

 

Good news! Amayama we're great. Took a little time, but kept me really well informed. Obviously tool a little while, and had to pay duty on the order, I it still way cheaper for the whole order, compared to just buying injectors in the UK.

New and old injectors are now at the testing station to find the best matched set. I'm assuming there'll be a step change from the new to the old injectors, so the best set will end up being the new set. But just in case, I've given them all 8 to test side by side.