PNP Upgraded Injectors for NA Build?

[thegenius46m]

Just finished my engine build and made a respectable 370whp on a mustang dyno which is excellent but my flow matched stock injectors are maxed out and I need to upgrade to something with more flow. I was recommended at least 440cc like the bosch green giant as well as 550cc but am looking to see if there are any options that are a direct fit to replace the stock ones in terms of fit and connector type as I don't want to have to run adapters or reengineer the electrical rail harness. They need to be the same spray pattern as stock as well so the car will idle properly.

Does anyone have any recommendations for an NA build that sees street usage? I don't want any bs with fuel trims when not at WOT. I know injector dynamics is a go to for S54 but they are way too big for an NA car.

[jet_dogg]

Nice number, looks like you owe lang an apology LOL!!

Just kidding 🤠

[thegenius46m]

Nice number, looks like you owe lang an apology LOL!!

Just kidding 🤠

Lol I don't think it would have made these numbers if I didn't have my local machinist catch the leaking valves before I had him swap them. But I will give Lang's machinist credit for the pocket porting.

[Chas3n]

Corey, what are the ones I have on mine? Welcome to have them.


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[JustAnother46M3]

- New Guy Here*

Been looking into this as well as I'm wanting to run Flex Fuel in the future at some point.

I came across the 225 8N Audi TT (0280156063), uses EV6 style injectors just like us. I have no dimensions to say how close they resemble the OE injector fitment but visually they look very close. Rated at 386cc it should bring you down atleast 17-20% IDC comparing to the stock rated 268cc.

[dl.m3]

- New Guy Here*

Been looking into this as well as I'm wanting to run Flex Fuel in the future at some point.

I came across the 225 8N Audi TT (0280156063), uses EV6 style injectors just like us. I have no dimensions to say how close they resemble the OE injector fitment but visually they look very close. Rated at 386cc it should bring you down atleast 17-20% IDC comparing to the stock rated 268cc.

Good lead but it looks like the nozzle is slightly different which may lead to a different spray pattern or location. That would be my concern

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[JustAnother46M3]

Tip is the same, If you look BMW puts the O-Ring on the Plastic Housing.

That Audi Injector just has a small ring/cap on the tip to hold the O-Ring down on the nozzle probably for a slightly smaller O-Ring. Slide the Cap and O-Ring off and it'll look just like the standard EV6 used in the S54.

S54 use a 0280156052, you can also get 0280156012 (440cc) Porsche Inj

Same Family of injector.

[thegenius46m]

Spray pattern must be the same as OEM I am being told or you will require quite a bit of tuning to get the car to idle properly. Imagine most of you would not want to deal with that.

[JustAnother46M3]

I can't imagine Bosch making different spray patterns for the same injectors in a family.

I'm 99.99% sure this is as close to the OEM S54 Injector as you will get.

Also the spray pattern doesnt need to be the exact same. The main concern is just a quality injector with a good spray pattern offering good atomization and mixture.

[stash1]

Paging Paulclaude...

[dl.m3]

Spray pattern must be the same as OEM I am being told or you will require quite a bit of tuning to get the car to idle properly. Imagine most of you would not want to deal with that.

Is it not as simple as re-scaling the global injector factor?

Very interested in this since I was planning to refresh my injectors soon anyway. the OE bosch ones seem to be out of stock everywhere and cleaning my original ones cost almost the same as new ones.

Maybe ill find some used old Audi TT injectors to test fit

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[thegenius46m]

Tip is the same, If you look BMW puts the O-Ring on the Plastic Housing.

That Audi Injector just has a small ring/cap on the tip to hold the O-Ring down on the nozzle probably for a slightly smaller O-Ring. Slide the Cap and O-Ring off and it'll look just like the standard EV6 used in the S54.

S54 use a 0280156052, you can also get 0280156012 (440cc) Porsche Inj

Same Family of injector.

Do you know if the Porsche injector (Bosch #62625) is the same length and plug and play with our car? I can't find dimensions anywhere.

[Martyn]

Those porsche 996T injectors are 'plug and play' in terms of physical install, I ran them for a while on my charged M3. The spray pattern is different (conical vs V) though but I had no issue dialling the the idle.

[thegenius46m]

Those porsche 996T injectors are 'plug and play' in terms of physical install, I ran them for a while on my charged M3. The spray pattern is different (conical vs V) though but I had no issue dialling the the idle.

Perfect! Even Bosch couldn't give me the specs to confirm I had the right part number. Lol.

So I just found these a minute ago that claim they are plug and play for S54. Honestly I think its the same Bosch Porsche injector that has been flow matched. Can you confirm that these are both the so called "Porsche" injector that fits stock rail for S54? Non-flow matched is half the price, but if I were to get that done second hand it comes out to close to the same amount so probably will just go with the ones below.

https://www.fiveomotorsport.com/750cc-bmw-vw-mini-028us750/

[Martyn]

Yup, the 996T injectors fit without modification. I can't comment on the FiveO ones though, but the length matches the 996T injector I have in my hand.

Personally I wouldn't bother with the flow matched units unless you've got an EGT probe installed per cylinder to actually allow you to dial individual cylinders in properly as the airflow to each cylinder isnt equal anyway.