PNP Upgraded Injectors for NA Build?

[Arith2]

I can't remember exactly but there's a couple mm difference between stock and these 550cc. You just need a small washer to angle the fuel injector rail very slightly. I wish I had pics of it but haven't had a chance to get under the hood. When you see it, it'll make sense. It's just a tiny difference. These injectors are almost perfectly plug and play though, and they run butter smooth with a good tune. It's nice to not be running 100% injector duty cycle. 🤪

Not to mention running 100% on 15 year old injectors. I have no head work but do have a set of 272/280s sitting around waiting for me to have time. I'm not familiar with S54 tunes but I can safely assume these 370whp+ tunes approach 100%. I was told to never exceed 95% or so for reliability. Above 98% is a no go. What's the minimum though?

[jet_dogg]

what cams did you go with? 280/272? 288/280? high lift?

I thought he had 280/272. You can't run 14mm lift with stock pistons so you can forget about those.

[EthanolTurbo]

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.

I can't remember exactly but there's a couple mm difference between stock and these 550cc. You just need a small washer to angle the fuel injector rail very slightly. I wish I had pics of it but haven't had a chance to get under the hood. When you see it, it'll make sense. It's just a tiny difference. These injectors are almost perfectly plug and play though, and they run butter smooth with a good tune. It's nice to not be running 100% injector duty cycle. 🤪

[Sharocks]

what cams did you go with? 280/272? 288/280? high lift?

He has 288/280's

[sickrunners]

what cams did you go with? 280/272? 288/280? high lift?

[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.

[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

[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!

[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. 😁

[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]

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

Sent from my HD1905 using Tapatalk

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. 😅

[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.

[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.

Sent from my HD1905 using Tapatalk

[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.

[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?