PNP Upgraded Injectors for NA Build?

[thegenius46m]

Any issues given they are now made in China vs Germany? Wonder if the FiveO is just a safer bet to not deal with extra issues?

[zzyzx85]

Any issues given they are now made in China vs Germany? Wonder if the FiveO is just a safer bet to not deal with extra issues?

In terms of stock injectors, I installed a set of Chinese made Bosch injectors last year and they've been fine over the 15k miles I've driven.

[thegenius46m]

Also I just chatted with some people on this bosch 750cc and for an NA car on stock dme, there is concern these might be challenging to scale down at lower load situations. Can anyone confirm they have run these on an NA car that sees street usage?

[fullyflaredd]

Curious, did you end up purchasing a set? If so which ones did you go with?

Have pretty much the same.mods as you and will be getting my car tuned by Hassan in a month or so, and have been told by a few people now that I should upgrade injectors while I'm at it.

[thegenius46m]

Curious, did you end up purchasing a set? If so which ones did you go with?

Have pretty much the same.mods as you and will be getting my car tuned by Hassan in a month or so, and have been told by a few people now that I should upgrade injectors while I'm at it.

I went with Bosch 52lb 550cc EV14 injectors. Honestly if you have cams and any headwork it is highly recommended to upgrade to injectors. Stock is a waste because my head is flowing so much air he had to dial back the tune considerably because stock injectors maxed out so quickly.

[9kracing]

My car is actually in the shop right now, and they are having a hell of a time installing my ID1050x injectors. They are telling me the universal adapters don't fit correctly and the injectors are leaking air. I'd always had good results with ID, has anyone heard of the ID injectors not fitting our cars?

[heinzboehmer]

I went with Bosch 52lb 550cc EV14 injectors. Honestly if you have cams and any headwork it is highly recommended to upgrade to injectors. Stock is a waste because my head is flowing so much air he had to dial back the tune considerably because stock injectors maxed out so quickly.

Are those plug and play (besides tuning)? Will be building an engine soonish and injector upgrade might be worth doing.

[dl.m3]

I went with Bosch 52lb 550cc EV14 injectors. Honestly if you have cams and any headwork it is highly recommended to upgrade to injectors. Stock is a waste because my head is flowing so much air he had to dial back the tune considerably because stock injectors maxed out so quickly.

Nice! Could you provide a Bosch part number? Looking for slightly bigger injectors for NA build.

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[R3VM3UP]

The important thing when swapping injectors is to pick one’s that you can get proper data for to adjust the calibration.

There are tons of OEM applications that you can buy OE Bosch EV14 replacement injectors for dirt cheap for if you are willing to run adapters or repin your harness for the USCAR connector.

[EthanolTurbo]

Nice! Could you provide a Bosch part number? Looking for slightly bigger injectors for NA build.

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https://polmaxracing.com/index.php/product/6-genuine-bosch-ev14-52lb-550cc-fuel-injectors-bmw-s54-3-2l-01-06-m3-01-02-z3m/

Here you go. These are what I run as well. thegenius46m didn't believe me at first but these work as smoothly as stock with about 2x max flow. 😅

[fullyflaredd]

https://polmaxracing.com/index.php/product/6-genuine-bosch-ev14-52lb-550cc-fuel-injectors-bmw-s54-3-2l-01-06-m3-01-02-z3m/

Here you go. These are what I run as well. thegenius46m didn't believe me at first but these work as smoothly as stock with about 2x max flow. 😅

You are the man! Ordered, now just need to setup some time on the dyno. Excited to see what numbers this thing will put down.

Thanks again for the sunroof delete.

[EthanolTurbo]

You are the man! Ordered, now just need to setup some time on the dyno. Excited to see what numbers this thing will put down.

Thanks again for the sunroof delete.

Just note you will need a small washer to angle the injector rail slightly. Make sure to dyno at EAS so Hassan can dial you in!

You're very welcome on the sunroof delete, definitely the most cost effective weight reduction on the car. 😁

[enjoy_m3]

I went with Bosch 52lb 550cc EV14 injectors. Honestly if you have cams and any headwork it is highly recommended to upgrade to injectors. Stock is a waste because my head is flowing so much air he had to dial back the tune considerably because stock injectors maxed out so quickly.

Is that on pump gas? Or full ethanol/ or Mix?

I have a set of 430cc bosch 0280156012 injectors I want to try out with my ape kit. I believe they are off a dinan supercharger kit. Polmax option is a good price. Great find!

[thegenius46m]

Is that on pump gas? Or full ethanol/ or Mix?

I have a set of 430cc bosch 0280156012 injectors I want to try out with my ape kit. I believe they are off a dinan supercharger kit. Polmax option is a good price. Great find!

Pump gas

[Arith2]

Just note you will need a small washer to angle the injector rail slightly. Make sure to dyno at EAS so Hassan can dial you in!

You're very welcome on the sunroof delete, definitely the most cost effective weight reduction on the car. 😁

Could you elaborate on the rail angle a bit. What's the angling for? About how much of an angle are we talking?
I've been on the fence about new injectors for a while but at $220, it's a no brainer.