Anyone know if the s54 and m54 injectors are the same? If the s54 injectors flow more does anyone have a set I can borrow?
Fuel Injectors
- Thread starter Machine monkey
- Start date
Looking at the pics Mat, I don't think they'd even fit into an M54, as the O rings and nozzle end look to be completely different.
Does no-one do "uprated" M54 injectors?
Thinking about it, probably not, as I can't see the demand with it being normally aspirated. Possibly the 35i/s ones?
Mike
Does no-one do "uprated" M54 injectors?
Thinking about it, probably not, as I can't see the demand with it being normally aspirated. Possibly the 35i/s ones?
Mike
Just had a look at the 35i, completely different..
Mike
Mike
Thanks DLV 
Beedub said:
How much do you want for them? And would you be prepared for me to try them and see if they work?
Beedub said:
They all operate at 3 bar but I will be putting in a adjustable fuel regulator and much bigger pump anyway. So that's not the issue. The issue is the ohms they operate at is different. I need to find out if that is a problem or programable with my ecu or if that's even possible or even a problem?? And if they even physically fit. How much would you want for them?
You can, but they ain't cheap, although cheaper than new OEM from BMW..
http://www.ebay.com/itm/6-BMW-M54-M52-450cc-High-Performance-Fuel-Injectors-Flow-Matched-Set-/270697032580
Mike
http://www.ebay.com/itm/6-BMW-M54-M52-450cc-High-Performance-Fuel-Injectors-Flow-Matched-Set-/270697032580
Mike
As said above you can buy them. But I am on a budget. It looks like the s54 ones won't be worth doing either. Unless they where almost free as the gain is minimal.
Yes I can increase the duty cycle and will be. As well as boosting the pressure supplied to them but again this has issues. The 3rd nasty option is to add a couple of injectors but this would have to be before the TB as it's the only place I could weld in bungs. My piggy back will run them but it's a bit of a farm yard solution!
I will keep searching for a deal. And researching. Hopefully find out that something off another car will fit. We had to do similar with coils and injectors on the supra.
Yes I can increase the duty cycle and will be. As well as boosting the pressure supplied to them but again this has issues. The 3rd nasty option is to add a couple of injectors but this would have to be before the TB as it's the only place I could weld in bungs. My piggy back will run them but it's a bit of a farm yard solution!
I will keep searching for a deal. And researching. Hopefully find out that something off another car will fit. We had to do similar with coils and injectors on the supra.
Beedub said:Machine monkey said:
make an offer thats reasonable and you can have themi may be wrong but i though the s54 fuel system in the z4m ran at 5 bar???
You could be right. I need to research more as sparently you can't trust all you read on the internet. I will keep looking Beedub and when I know more I will make you an offer. Thanks
Machine monkey said:Beedub said:Machine monkey said:
make an offer thats reasonable and you can have them
You could be right. I need to research more as sparently you can't trust all you read on the internet. I will keep looking Beedub and when I know more I will make you an offer. Thanks
what ever happens, id run a walbro or aeromotive in tank, hell even the z4m unit if it works, swap out the FPR and use the z4m injectors, the stock injectors are still used on some of the base kits which run 430 hp....
Mister T said:
They would have been!! But fold now. Looks like I have found a soloution £180 and I think that's not to bad. They are remanafactured injectors that will support 400+ Bhp
I think you could get some a lot cheaper. Volvo S40 turbo injectors are 440cc and should be a direct fit - just need to find 2 sets:
http://www.ebay.co.uk/itm/Set-of-Volvo-S40-V40-T4-fuel-Injectors-sport-lux-SE-6900371-Siemens-details-/232357027480?hash=item36198ede98:g:9ugAAOSwX61ZCPJR
Siemens 6900371 cheap as chips
http://www.ebay.co.uk/itm/Set-of-Volvo-S40-V40-T4-fuel-Injectors-sport-lux-SE-6900371-Siemens-details-/232357027480?hash=item36198ede98:g:9ugAAOSwX61ZCPJR
Siemens 6900371 cheap as chips
Just orderd 6 of them Mister T.
Got a good deal on 6 cleaned and flow tested and matched injectors.
Got a good deal on 6 cleaned and flow tested and matched injectors.