I currently have the stock 21.5# injectors in my 328i e36/M52B28. I'm wondering if with the mods below will I need to upgrade to 24# injectors and 3.5MAF as well? The only mods installed currently are Intake/ASC Delete/Riot Racing BBTB.
Mods waiting to be installed:
M50 Manifold Swap
Riot Racing S52 Cam regrinds
Headers
Exhaust
So adding the manifold and cams, should I add the 24# injectors and 3.5MAF?
Thanks!
2002 BMW Titanium Silver 540i/6-speed Sport - ZHP Shift Knob - M5 Clutch/TTV Racing 15.6lb Flywheel - M60 Intake Manifold - N62 84mm TB - Dinan Intake Tube - 4" MAF Tube - DUDMD Tune - Magnaflow Resonator - Eibach 18mm Rear Sway Bar - Powerflex Front Sway Bar Bushings - CDV Delete - UUC SS Brake Lines - Koni Yellow Shocks/Struts - Eibach Springs - Zionsville Radiator & FDM
Who is tuning the car? Is the car getting tuned for your new mods?
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99 M3
2002 BMW Titanium Silver 540i/6-speed Sport - ZHP Shift Knob - M5 Clutch/TTV Racing 15.6lb Flywheel - M60 Intake Manifold - N62 84mm TB - Dinan Intake Tube - 4" MAF Tube - DUDMD Tune - Magnaflow Resonator - Eibach 18mm Rear Sway Bar - Powerflex Front Sway Bar Bushings - CDV Delete - UUC SS Brake Lines - Koni Yellow Shocks/Struts - Eibach Springs - Zionsville Radiator & FDM
Consider 22nd Productions (22rpd.com), Vollosso on here. He got an extra 9whp peak and 8-10ft/lbs of torque over about 80% of the torque curve over the best one of your choices could do on my NA 3.0 build. He was super easy to work with and very quick to respond to every one of my questions/inquiries.
Last edited by jakermac; 09-28-2016 at 08:51 AM.
^ +1 I'm going with Zack (vollosso) at 22rpd as well for my NA 3.2L with RR cams. Nothing but a good experience so far and very reasonable pricing too.
I was also going through the same dilemma on my 3.2L: Are the 24# injectors and 3.5 MAF worth it? From my understanding, the 24# injectors and 3.5" intake/MAF might give you a little more area under the curve and a little more fueling headroom on the stock FPR--but definitely not necessary for a solid setup. You might be leaving a very small amount of power on the table without them, but they definitely aren't the best bang for your buck compared to all the other mods.
That being said, I found a great deal on the forums for a rebuilt set of 24# injectors, and Zack got me hooked up with a great deal on a 3.5" intake/MAF setup. You'll probably see very small gains from them, but I don't know how necessary they are. Ask your tuner what they recommend--You're paying them.
jakermac, what cams are you running? What is your NA setup? That looks very healthy for an NA 3.0L. I hope my NA 3.2L numbers look that good lol.
Last edited by m3leistung; 09-28-2016 at 11:26 AM.
99 M3
On a 328, you will probably not max out the stock MAF or the 21.5lbs injectors.
It's nice to have, but unless you are not reaching maximums, there's no power gain.
-Abel
- E36 328is ~210-220whp: Lots of Mods.
- 2000 Z3: Many Mods.
- 2003 VW Jetta TDI Manual 47-50mpg
- 1999 S52 Estoril M Coupe
- 2014 328d Wagon, self-tuned, 270hp/430ft-lbs
- 2019 M2 Competition, self-tuned, 504whp
- 2016 Mini Cooper S
Thanks for the feedback guys. I didn't think I'd be maxing them out. Much appreciated.
2002 BMW Titanium Silver 540i/6-speed Sport - ZHP Shift Knob - M5 Clutch/TTV Racing 15.6lb Flywheel - M60 Intake Manifold - N62 84mm TB - Dinan Intake Tube - 4" MAF Tube - DUDMD Tune - Magnaflow Resonator - Eibach 18mm Rear Sway Bar - Powerflex Front Sway Bar Bushings - CDV Delete - UUC SS Brake Lines - Koni Yellow Shocks/Struts - Eibach Springs - Zionsville Radiator & FDM
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