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-   -   Injector Spray Pattern Important? (https://www.miataturbo.net/engine-performance-56/injector-spray-pattern-important-104148/)

GR124 Nov 11, 2020 09:40 PM

Injector Spray Pattern Important?
 
Hi Guys, I'm currently looking to upgrade my Bosch EV14 GT500 640cc injectors. These injectors have a split cone spray pattern for the two ports.
I'm struggling to find a Bosch (or similar) split cone around the 1000cc mark.
The split cone makes so much sense. I know a lot of guys run the single cone spray pattern.

Am I worrying about nothing?
Thoughts?

Engine is BP4W, E85, turbo, track only.

shuiend Nov 13, 2020 07:12 AM

Just buy ID1050x or whatever their newest is and be done with it.

Arca_ex Nov 13, 2020 08:01 AM

If you're that worried just buy ID1050x. Best aftermarket injector there is. I'd bet the farm that you can't tell the difference between split cone and single cone when they're in the car.

technicalninja Nov 13, 2020 08:17 AM

Split cones require proper clocking and I worry about the patterns being more finicky down the road.
I'm with the others. Get the highest quality standard injector available.
The amount of airflow in the port (especially under boost) makes the injector pattern shape a moot point.
How well the fuel is atomized is more important IMO.
IDs are usually the answer.


matrussell122 Nov 13, 2020 02:11 PM

Another vote for ID1050X they are great. Idle way better than stock even on a non modified motor

GR124 Nov 14, 2020 07:55 AM

Thanks to all. I put my same OP on a engine build page on Facebook. Pretty much the same response as you guys. single spray it is. I just bought some Bosch 0280158040 units. Got them flow matched. 980cc @ 3 bar

matrussell122 Nov 14, 2020 11:45 AM


Originally Posted by GR124 (Post 1585983)
Thanks to all. I put my same OP on a engine build page on Facebook. Pretty much the same response as you guys. single spray it is. I just bought some Bosch 0280158040 units. Got them flow matched. 980cc @ 3 bar

This isn't what we were suggesting though. There is a reason we all reccomend injector dynamics

Arca_ex Nov 14, 2020 10:49 PM


Originally Posted by GR124 (Post 1585983)
Thanks to all. I put my same OP on a engine build page on Facebook. Pretty much the same response as you guys. single spray it is. I just bought some Bosch 0280158040 units. Got them flow matched. 980cc @ 3 bar

Yeah those aren't the same as Injector Dynamics, you didn't do what we suggested. Cheers.

GR124 Nov 17, 2020 05:51 PM

1 Attachment(s)

Originally Posted by Arca_ex (Post 1586051)
Yeah those aren't the same as Injector Dynamics, you didn't do what we suggested. Cheers.

I appreciate your suggestions, I really do. The ID1050s are double the price of the ones I bought here in Australia. My question was more about the spray pattern. All good guys the ID1050s are probably better, but by how much and extra $400 AUD??? maybe not.
but all is well the build is coming along. finishing my manifold ATM
Attachment 227544


technicalninja Nov 17, 2020 06:25 PM

It's an oxymoron!

A "Lo cost" that is NOT!

Looks like fun.

I really like IDs

But, I would not pay double either...


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