AFE Intake Dyno and Review! - BMW M5 Forum and M6 Forums
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post #1 of 141 Old 21st September 2008, 07:23 AM Thread Starter
avi8tir
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AFE Intake Dyno and Review!

I volunteered myself to be the guinea pig for the new AFE intake for the E60 M5 . So the day came today and I headed to RPI to see what this thing was all about. I was told over and over again that it wouldn’t make power, in fact, I would actually lose power since it is not a sealed box and all it would be sucking in would be air that is warmer than ambient from the engine bay. I had an AFE intake on my E46 M3 that I really liked, so I decided to take the plunge and see what it had to offer on the dyno!

List of engine mods:
RPI Scoops
BMC Filters
Charcoal Filters removed
Supersprint X-pipe
Dinan Exhaust

Install:
Install was a relative pain in the a$s. Eloy from RPI discovered a few issues (which we worked around) and we got it done in about 2.5 hours, which was much longer than expected. This was definitely attributed to QC issues on AFE’s part. Nothing major, just annoyances that translated into some improvisation.

Dyno:
We did a few baseline pulls to see where we were starting from. These were disappointing, but that’s for another post. At least we had something to go off of.
I have attached the dyno so you can see.
005= setup as listed above – hood closed
006= AFE Intake – RPI Scoops "blocked" – hood closed
008= AFE Intake – RPI Scoops – hood closed
010= AFE Intake – RPI Scoops – hood open

As you can see, my baseline was low to begin with. I’ll work on that this week. But there is a clear drop in RWHP with the AFE Intake compared to the baseline run. The drop is in the 20-25+ range!!!! Even with the hood open, the AFE loses big power throughout the midrange of the power band until almost 7000 rpms where it matches and barely goes higher than stock.

Outcome:
I’m definitely making a change – back to stock intake – or possibly Dinan. I will be returning the AFE and expect a full refund considering this proof that their product is worthless!! One of the main reasons that I got the intake was for the additional sound from the engine. Funny thing is that I cant even tell the difference in sound!!! Driving home from RPI, I could definitely feel the difference in power from my previous setup. It sucks!

This product gets an F------ (that’s an F minus minus minus minus minus minus)


Oh well, it was fun to meet everyone at RPI!



2013 M5
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2010 997.2 GT3
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Last edited by avi8tir; 21st September 2008 at 07:30 AM.
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post #2 of 141 Old 21st September 2008, 07:45 AM
MPower82
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sorry to hear that bro. Looks like RPI is still king.


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post #3 of 141 Old 21st September 2008, 07:45 AM
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We were discussing your baseline and a few of us had the idea that perhaps your SS X-Pipe was the culprit for the lower baseline. I think Eloy may have a stock sec 2 laying around his shop. If your tubes are clamped on, perhaps it can be a quick swap to see if you get some back with the stock sec 2.

The AFE's, though, should be refunded to you incl shipping both ways.
Either way, best of luck with the Dinan's. I read good things as well.

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post #4 of 141 Old 21st September 2008, 07:58 AM
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I was there aswell and was surprise with the baseline dyno (to begin with) of Avi8tir...hope you get it sorted out...meanwhile EM 5 dyno'd at 412 rwhp with hi RPI setup...

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post #5 of 141 Old 21st September 2008, 08:18 AM
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AV8tr, you should also check out the CAI system just released from ASR. It looks like it is the business, and even Eloy commented how their data, R&D, and attention to detail are top notch. I am seriously thinking about this mod.


-E
E60 M5 - RPI modded

"if it don't make dollas, it don't make sense"

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post #6 of 141 Old 21st September 2008, 08:49 AM
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I was there as well and initially thought that maybe the dyno got too grumpy like the RPI owner as always . Good to see the old/new faces.cherrsag ai

Then after Avi8tir left around noon, EM_5 dyno his car with RPI scoop and RPI section3 and get 412whp. So, I feel sorry for Avi8tir what he has been through. First time I dyno'd on RPI's dyno dynamic, I got 390ish stock and couldn't sleep for a week

Definitely recommend to put back just stock resonator and dyno again. I'm sure Eloy will gladly help you get your hp back to what it suppose to be 380-390ish whp stock(CF removal) and 400+ with scoop.


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post #7 of 141 Old 21st September 2008, 08:51 AM
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Quote:
Originally Posted by MPower82 View Post
AV8tr, you should also check out the CAI system just released from ASR. It looks like it is the business, and even Eloy commented how their data, R&D, and attention to detail are top notch. I am seriously thinking about this mod.
get it, E. Me and other will chime in $$ for dyno session

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R.I.P. BALL...11/15/88-06/22/06
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post #8 of 141 Old 21st September 2008, 09:42 AM
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Thank you Avi8tir for putting your neck out for us. We're really sorry for the disappointment. I hope you do get a full refund. Best of luck.

Modifications:
  • Engine: RPi / PC Stage 2 ECU Software, RPi ST Underdrive Pulley Kit, RPi Ram Air Intake Kit (Black) & Block Off Plates, RPi SV1 Oil Cooler (Black), M-Sprint Booster
  • Exhaust: RPi GT Headers, RPi Hybrid X Pipe Section 2, RPi GT Section 3
  • Exterior: Vorsteiner CF Vented Hood, RH Type CF Splitter, Upper CF Mirrors, CF Side Skirts, CF AC Schnitzer Style Trunk Spoilers, CF Side & Kidney Grills, Black Powder Coated Lower RaceMesh Grille, CF Pillars, all Roundels in CF, Red Angel Eyes, OEM Smoked Tail Lights, Smoked Side Markers, Brake Calipers Painted in Red with CF ///M Decal
  • Interior: Custom CF Lower Steering Wheel, CF Interior Trim, CF Handbrake, CF Gauges Trim, CF Door Pins, Illuminated Door Sills, OEM Aluminum Pedals
  • Wheels: OEM Blacked Out Rims with Michelin PS2 Tyres (Front: 255/40-19 Rear: 295/30-19), H&R Spacers (12mm Front)
  • Suspension: H&R Lowering Springs
  • Miscellaneous: V-Kool Window Tints
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post #9 of 141 Old 21st September 2008, 11:23 AM
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sorry about your experience ! hope you will be able to make it up with some other CAI. good luck and pls keep us up to date. If I was you I would probably check on ASR's products if your still interested in some extra horses.
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post #10 of 141 Old 21st September 2008, 11:25 AM
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you were a good sport about it.. i say complain and get a refund.

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