aFe intake installed with rubber seal and cruise control cable notch

There is a notch in the heat shield through which you can route the cruise control wire, and then it's just a matter of installing the the final rubber seal. The aFe intake is now fully installed, so we remounted the headlight and put her on the dyno... 

E36 323is dyno chart aFe intake

With the car strapped down and rolling on the dyno, we were anxious to see what sort of gains we got from our new aFe intake.  With the losses from the DIY kit we previoiusly had, we weren't expecting mammoth gains. We ended up showing 0 peak hp and 4.6 peak ft/lb tq. We were a little surprised to see no gain over our stock airbox in the horsepower category, but we were happy with the 4.6 ft/lb of torque we gained.  Most gains were under the curve in the lower- and mid-RPM range.

Shark Injector preparation battery charger

Now it was time the Shark Injector ECU reflash portion of our Stage 1 Turner Motorsport Performance Package.  Before starting that process, however, you must hook up a battery charger to the car, and it needs to be giving off at least 10 amps of continuous power.  The instructions are very specific about this, and they warn that any power loss during your software upgrade can result in an inoperable car. A good battery charger isn't horribly expensive, and it's always good insurance to have on hand anyway.  Follow the instructions, or don’t say we didn’t warn you.  

BMW E36 20-pin diagnostic port under hood

Once our battery charger was hooked up and running, we located the 20-pin diagnostic port in the engine bay.  It’s located on the passenger side by the shock tower, and the cap screws off easily.

Conforti Shark Injector mounted

With the Shark Injector mounted properly, turn the ignition to the on position, but DO NOT start the car. Once you've made sure the green light is solid, hit the “Upgrade” button, and the green light will start blinking.  This signals the beginning of the software transfer stage, when the Shark Injector is downloading your OE data.  
Approximately 3 minutes later the red light will illuminate solid while the green light continues to blink, and this signifies the reprogramming phase while your new software is being uploaded to the car's ECU.  Then, after about another 3 minutes the red light will turn off, and the green will continue to blink once its reached the final check phase. 
Finally, after a few more minutes, the light will illuminate solid green.  This signifies that all programming has finished, and the last part of the process is to turn the ignition to the off position, wait 30 seconds, and then turn it back to the on position. The green light will flash for 15-20 seconds and then illuminate solid.  Once you have a solid green light you are finished. Now turn the car off, wait another 30 seconds, and then remove the Shark Injector. Put the cap back on the diagnostic port, remove the battery charger and close the hood.  Now go drive! 

E36 323is dyno chart before and after Stage 1 Turner Motorsport Performance Package

Our dyno numbers for the entire package are in red above.  We overlayed them against our numbers from the exhaust article to show all the changes along the way.  We gained a total of 3 peak whp and 1.2 peak ft/lb of torque from the Shark Injector alone. 

With a total of 3 peak whp and 5.8 peak ft/lb torque from the aFe intake and Shark Injector package, we do notice the torque increase more than anything else.  The car is much smoother throughout the power band and driveability seems smoother, too. The additional torque is especially noticeable during spirited passing on freeways, and the increased rev-limit will be greatly appreciated on track days.  Not so much because of the greater power, since our car starts to taper off up top, but because it will allow us to carry the gears a little longer to possibly save time from a short-term upshift, or from bouncing off the rev limiter.



Turner Motorsport

aFe Power



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Tuesday, August 6, 2013 10:12 PM
Nicely done! It`s nice to see how the car comes together step by step. But apart from a tubular manifold and maybe a set of cams you`re almost done with the simple bolt-on stuff at least power wise. Can`t wait to see how it will develop!

Wednesday, August 7, 2013 1:08 AM
Stage 1 mapping on all engines usually refers to a conservative yet more powerful maps from standard. You could use it with any filter & exhaust, it would not matter. Even with a stock engine, a stage 1 mapping gives more HP.

Now if you want a more efficient and more reliable engine, have it fine tuned by a pro on a dyno. Off the shelf tunes are always quite conservative, because most of their users dont have a perfectly working car. Better lose 5-10HP on all cars than have 5% of customers blame their engine death on you ...
Ryan Georgas
Ryan Georgaslink
Wednesday, August 7, 2013 4:02 AM
I'd like to see an aftermarket intake elbow tested. My stock one cracked on the underside so I replaced it with a silicone one. My ear and butt dynos show improvements on a car with nearly identical mods. Mine's a 1994 w/ OBD1 though. How old is your upstream O2?
Wednesday, August 7, 2013 8:24 AM
True that most off-the-shelf tunes are conservative, and that's a good thing for all of us, really. Very likely that more power could be had with a dyno-based custom tune, but that brings expenses up quite a bit, and for this motor with these modifications, it wouldn't likely be worth that expense. This is just a very common and recommended upgrade which we wanted to highlight. We'll see what we have in store for the future, however.

Agreed that a non-turbulent intake elbow would very likely free up a couple of extra ponies.
Wednesday, August 7, 2013 6:07 PM
I know this isn't meant to be a dyno car, but the power numbers are disappointing. Perhaps those Germans did such a good job that they didn't leave much room for tuning. Any plans for more "real" power? Perhaps a some forced induction?
Thursday, August 8, 2013 2:32 AM
To my knowledge the 323i/328i share the M52 (B25/B28) engine platform so there should be possibilites to make use of that. The larger crankshaft in combination with some cams should boost performance quite a bit. It`s a lot a wrenching but costs are low with doing that...perfect for the poor man!

Nick B
Nick Blink
Thursday, August 8, 2013 8:44 AM
@Cyrusathell - the 323 and 328 do have the same block, as you stated the 323 is the b25 and the 328 is the b28. At this point we've come to the conclusion that the B25 is pretty much optimized to it's full flow potential from the factory. We'll be doing a "budget" swap soon, stay tuned.

@Jeffball610 - I'm disapointed in the #'s too, i agree that the engine is basically as efficient as it can be from the factory so there's not much room for improvement. I was originally going to do cams and M50 manifold but at this point opening up the top probably won't gain the power expected since the bottom is still a 2.5 liter. No plans on FI but we're working on a "budget" swap so stay tuned.
King Hax
King Haxlink
Tuesday, August 27, 2013 1:13 AM
I personally favour the E36 over the E46, but that's just me. I'd scrap the E46 M3 project and focus more on the E36 haha But I may be biased...

Great build, looking forward to more!
Anonymous User
Anonymous Userlink
Tuesday, October 8, 2013 9:32 PM
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