AFE CAI = Powewr Loss?
09-26-2008, 03:06 PM
#21
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My Ride: F10 M5
Model Year: 2013
Hi Guys,
I know there is a lot of confusion or talk about the AFE losing power. On the M5 yes it did lose power, but the ECU never had a chance to adapt to the new air flow. I have a chart that I'm about to put up that will explain some kind of reasoning. I first did Dinan, AFE, Stock with stock filter, Stock w/ NO filter. I did all this WITHOUT letting the ECU adapt. Dinan claims 17whp and I gained 3.06 AFE claims 7whp and I gained .066whp. Now please keep in mind that I didn't lose HP or gain a lot. This was with the hood closed and before I got my scoops on as well. I hope this clears some issues. Please feel free to contact me anytime. Thank you.
I know there is a lot of confusion or talk about the AFE losing power. On the M5 yes it did lose power, but the ECU never had a chance to adapt to the new air flow. I have a chart that I'm about to put up that will explain some kind of reasoning. I first did Dinan, AFE, Stock with stock filter, Stock w/ NO filter. I did all this WITHOUT letting the ECU adapt. Dinan claims 17whp and I gained 3.06 AFE claims 7whp and I gained .066whp. Now please keep in mind that I didn't lose HP or gain a lot. This was with the hood closed and before I got my scoops on as well. I hope this clears some issues. Please feel free to contact me anytime. Thank you.
09-26-2008, 03:32 PM
#22
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My Ride: 2007 E63 AMG | Obsidian Black | Schwarzes Nappa | Black BirdEye Maple | Premium II Package | Electronic Trunk Closer | Parktronic
Engine: RPi/Powerchips custom ECU tune, RPi Ram Air Kit (BMC filter, scoops), RennTech Sport exhaust, secondary cats, charcoal and resonator delete, custom AAA x-pipe
Exterior: 50% side windows / 35% rear window Formula One Pinnacle Series | Flat AMG hood emblem
Suspension: Renntech Lowering Module
Wheels/Tires: Radenergie R10, Falken FK452 245/30/20, Yokohama ADVAN Sport 285/25/20
-----------------------------------------
2005 545i Sport SMG | Ti Grau | Schwarzes Dakota | Anthracite Maple | Logic 7 | Nav
Engine: Custom AFE CAI, Superchips ECU remap, Sprint Booster, RDSport Dual Exhaust Conversion with Quad Pipes and X-pipe, 3 resonators deleted, 90mm tips!
Exterior: M-Tech Aero kit | M5 Mirrors | M5 Rear Bumper | Trunk Lid Finisher | Vorsteiner decklid spoiler | 50% Formula One Pinnacle Tint
Suspension and Brakes: Bilstein PSS9 coilovers, JBT BBK: 16" cross-drilled rotors, 8 piston and 15" cross-drilled rotors, 4 piston
Wheels: VIP Modular VR 02 20x9F, 20x10R | Toyo T1R 245/30/20F, 285/25/20R
Lights: PIAA 4150K Xtreme White Plus fog lights, AIB v3
MOST IMPORTANT: Hardwired V1; =)
ED Date: 4/7/05, Re-delivery date: 5/21/05
Two reviews of the AFE CAI from SocalM5Mang and I. Unfortunately, neither SocalM5Mang nor I have a pre/post dyno for the AFE. I believe that the AFE CAI works best with a remapped ECU and free-flow exhaust which we both have.
550i with AFE CAI.
545I with AFE CAI.
550i with AFE CAI.
545I with AFE CAI.
09-26-2008, 07:07 PM
#23
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Not a big fan of aFe intakes on NA engines. Dyno after driving your car for an hour. Since the aFe intakes are not sealed you will lose power, heat soak.
09-26-2008, 07:09 PM
#24
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Originally Posted by r1racer' post='679337' date='Sep 26 2008, 04:06 PM
Hi Guys,
I know there is a lot of confusion or talk about the AFE losing power. On the M5 yes it did lose power, but the ECU never had a chance to adapt to the new air flow. I have a chart that I'm about to put up that will explain some kind of reasoning. I first did Dinan, AFE, Stock with stock filter, Stock w/ NO filter. I did all this WITHOUT letting the ECU adapt. Dinan claims 17whp and I gained 3.06 AFE claims 7whp and I gained .066whp. Now please keep in mind that I didn't lose HP or gain a lot. This was with the hood closed and before I got my scoops on as well. I hope this clears some issues. Please feel free to contact me anytime. Thank you.
I know there is a lot of confusion or talk about the AFE losing power. On the M5 yes it did lose power, but the ECU never had a chance to adapt to the new air flow. I have a chart that I'm about to put up that will explain some kind of reasoning. I first did Dinan, AFE, Stock with stock filter, Stock w/ NO filter. I did all this WITHOUT letting the ECU adapt. Dinan claims 17whp and I gained 3.06 AFE claims 7whp and I gained .066whp. Now please keep in mind that I didn't lose HP or gain a lot. This was with the hood closed and before I got my scoops on as well. I hope this clears some issues. Please feel free to contact me anytime. Thank you.
But what intake are you running now?
09-26-2008, 08:12 PM
#25
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My Ride: 5series
Model Year: 2004
Originally Posted by JetBlack5OC' post='679414' date='Sep 26 2008, 11:07 PM
Not a big fan of aFe intakes on NA engines. Dyno after driving your car for an hour. Since the aFe intakes are not sealed you will lose power, heat soak.
09-27-2008, 05:47 PM
#26
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My Ride: 04 545i - Titanium Silver/Black, Sport pkg, Comfort Seats w/ Lumbar, Premium Sound, power rear sunshade, Adaptive Xenon Headlights, Steptronic, Park Distance Control, Fold down rear seats w/ski bag, Aux jack, 6-disk changer, puddle lamps...
Engine: Custom Remus cat-back exhaust w/chrome square tips, K&N Air Filter, Charcoal Filter Removed, Sprint Booster :-), 50/50 mix of 91+100 Octane, EuroRev ECU Remap (coming soon lol), Dinan High-Flow Throttle Body (coming soon...maybe lol)
Interior: Portable Sirius Stilletto 100 w/car kit, Garmin Nuvi 680 mounted below rear-view mirror, LCI-style I-drive knob, Dark Poplar Center Dashboard Trim.
Exterior: E60 forum clings, 5% rear tint, ACS roof spoiler (painted black for distinct look against limo tint), ACS trunk spoiler, ACS add-on front spoiler and rear apron (awaiting installation), "18 Black Staggered BeBeS Style OER (emergency replacement for cracked sport 124 rims), black kidney grill, white accessory lighting (including license and trunk lamps), Angel-eye upgrade, AIB xenon-matched fog lamps, AIB V3's on order, red rear reflectors
Maybe I'm missing something regarding the AFE. While I understand there will be quite a bit of hot air being sucked in at idle, once the car begins moving any appreciable amount, cooler outside air will be rammed/drawn in from the intake port in the front, right? At that point, wouldn't the air temperature be similar to the stock airbox? I'm gonna have to find time to hook up a scanner and get the MAP sensor temp readings under various loads using both the stock and AFE intakes and compare. Not gonna happen real soon - but I'll try it once I get time. Curious...
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