RPI Scoop Dyno Charts?

vRooooM · Tue, Feb-03-2009, 01:42:16 AM

Searched and couldn't find any RPI scoop dyno carts/graphs. Are there any? thanks.

NorthwestM3 · Tue, Feb-03-2009, 02:37:19 AM

The number is going to vary depending on the number of fans used. I would take any dyno graph for these with a grain of salt. Not enough fans is going to result in low numbers for the top end. Too many or even the right amount and you are going to get inflated low end and midrange numbers. The only real measurable method would be acceleration and 1/4 mile time gains. Even then you are subject to varying weather and track conditions unless they are done on the same day.

douging · Tue, Feb-03-2009, 03:02:17 AM

Quote:

Originally Posted by NorthwestM3

The number is going to vary depending on the number of fans used.

What if it was a before/after on the same dyno, same fans, and same day?

NorthwestM3 · Tue, Feb-03-2009, 05:36:21 AM

Quote:

Originally Posted by douging

What if it was a before/after on the same dyno, same fans, and same day?

Do to the nature of how the product develops hp by directing air into the intake it still will not be an accurate measure of actual road conditions. You could get a measure of a specific speed like it adds 2hp at 80 MPH in 3rd gear with fans supplying air at 80 MPH. Other than that it is not going to be an accurate measure of gains at other speeds unless you could vary the speed of the supplied air to match the increase in wheel speed on the dyno. That would take an obscenely expensive wind tunnel that could change wind flow as fast as the car could accelerate.

The only realistic empirical evidence is going to be running with identical road and weather conditions and collecting the acceleration data.

**M3MurkU** · Tue, Feb-03-2009, 07:01:41 AM

the point is for highway roll on's these help, they may give you 2hp or 8hp, either way there cheap, and effective, i have them on my car and it does feel faster and smoother at 110mph..

vRooooM · Tue, Feb-03-2009, 04:44:47 PM

lucky_doggg7 · Tue, Feb-03-2009, 05:21:54 PM

Here you go...

http://www.myz4mcoupe.com/images/Sca...yDynoPlots.JPG

Granted, these dyno plots are on a Z4 M Coupe, which has a different ECU (later generation hence updated engine software) than the E46 M3, and the scoop is tested with a mix of other components, but at least one can get an idea of what the scoop will do.

Also do a search for SP Engineering, as they have a version of the scoop and in that post, dyno results are in that post. Here is my $.02, for a $100 bux, it can't hurt.

Mash3 · Tue, Feb-03-2009, 06:36:31 PM

You'll inch away from a stock car at 100+mph! Awesome!

Can't hurt, though. Can it?

GC

AlPhA M3 · Tue, Feb-03-2009, 10:07:42 PM

ill be installing mine once it stops snowing and let u all know.. ive heard great reviews

**Detroit_M3** · Tue, Feb-03-2009, 10:10:25 PM

It is like $150 for a piece of plastic...

Tue, Feb-03-2009, 01:42:16 AM	#1
vRooooM ///M Life Join Date: Mar 2004 Posts: 519 Reputation: 0 Location: Rochester Hills	RPI Scoop Dyno Charts? Searched and couldn't find any RPI scoop dyno carts/graphs. Are there any? thanks. __________________ 04 SG/IR SMG, Prem. pkg -Assist, NAV, adj. width, xenon, univeral transceiver, HK Mods M5/M6 SMG Shift knob, Royal F1 paddles, Streamline P/F, IceLink Plus, RG4v2, D/A software, TCKline D/A, V-CSL Trunk/Diffuser, RPI Scoop 07 S60 R

Tue, Feb-03-2009, 02:37:19 AM	#2
NorthwestM3 Essayons Join Date: Mar 2008 Posts: 1,001 Reputation: 0 Location: Fircrest, WA	The number is going to vary depending on the number of fans used. I would take any dyno graph for these with a grain of salt. Not enough fans is going to result in low numbers for the top end. Too many or even the right amount and you are going to get inflated low end and midrange numbers. The only real measurable method would be acceleration and 1/4 mile time gains. Even then you are subject to varying weather and track conditions unless they are done on the same day. __________________ 3/01 production, TCK Coilovers 550F/600R, Vorshlag camber plates, TCK RSM's, TMS rear control arms, Powerflex RTAB's, Rogue FCAB's, OEM strut tower bar, tower reinforcement plates, reinforced subframe, TR MT1 wheels, Stoptech BBK, ZHP shifter, Rogue tranny mounts, Agency Power Headers, Random Tech cats, Rogue pulleys, Conforti tune, Borla Mufflers, AFE Stage II intake, 3.91 gear set, Clutchmasters clutch and lightweight steel flywheel, CF trunk, ...

Tue, Feb-03-2009, 04:44:47 PM	#6
vRooooM ///M Life Join Date: Mar 2004 Posts: 519 Reputation: 0 Location: Rochester Hills	__________________ 04 SG/IR SMG, Prem. pkg -Assist, NAV, adj. width, xenon, univeral transceiver, HK Mods M5/M6 SMG Shift knob, Royal F1 paddles, Streamline P/F, IceLink Plus, RG4v2, D/A software, TCKline D/A, V-CSL Trunk/Diffuser, RPI Scoop 07 S60 R

Tue, Feb-03-2009, 06:36:31 PM	#8
Mash3 Look out below! Join Date: Aug 2003 Age: 43 Posts: 6,550 Reputation: 0 Location: Hollywierd	You'll inch away from a stock car at 100+mph! Awesome! Can't hurt, though. Can it? GC __________________ Forum Member Since 2003. . . 2004 M3, SG/ IR. 75k miles. Original owner.

Tue, Feb-03-2009, 10:07:42 PM	#9
AlPhA M3 Registered User Join Date: Apr 2008 Posts: 955 Reputation: 0 Location: queens	ill be installing mine once it stops snowing and let u all know.. ive heard great reviews __________________ tiag m3.. 6mt, HRE'S ,stoptech stg.2, EE leds, v-csl rear diffusor ,tien , shark injector, a/p exhaust, re rasp pipe,streamline filter, steamline elbow, RPI scoops, re tranny mounts, cdv delete, re clutch stop, uuc revo3,, WAY MORE TO COME

Tue, Feb-03-2009, 07:01:41 AM	#5
M3MurkU Banned Join Date: May 2008 Posts: 1,658 Reputation: 0 Location: A-Town	the point is for highway roll on's these help, they may give you 2hp or 8hp, either way there cheap, and effective, i have them on my car and it does feel faster and smoother at 110mph..

Tue, Feb-03-2009, 05:21:54 PM	#7
lucky_doggg7 lucky_doggg7 Join Date: Apr 2008 Posts: 2,122 Reputation: 11 Location: Lake Forest	Here you go... http://www.myz4mcoupe.com/images/Sca...yDynoPlots.JPG Granted, these dyno plots are on a Z4 M Coupe, which has a different ECU (later generation hence updated engine software) than the E46 M3, and the scoop is tested with a mix of other components, but at least one can get an idea of what the scoop will do. Also do a search for SP Engineering, as they have a version of the scoop and in that post, dyno results are in that post. Here is my $.02, for a $100 bux, it can't hurt.

Tue, Feb-03-2009, 10:10:25 PM	#10
Detroit_M3 Banned Join Date: Jan 2009 Posts: 126 Reputation: 0	It is like $150 for a piece of plastic...

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