just curious
10-27-2008, 08:16 AM
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Just curious, after all the mods u guys have made, sb,pulleys,intakes,etc. Why hasn't anyone gone to the track to c what gains or losses they have made? It seems you guys only test it on the hywy. Which is not the way to do it. Or it seems that u wait for someone to go and get a dyno to that you have loss or gained perfrm. The only way u will c or notice gains is installing gears ,exhaust or cam,heads,intake. Instead of doing a meet to to look at each others cars,why not meet and go down the track?
10-27-2008, 08:50 AM
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My Ride: '05 545 Titanium Silver, Black Leather - Nav, Logic 7, Cold weather.
Mods:
Carbon filter removed.
M5 iDrive knob.
Umnitza license plate LEDs.
MP3
40% 3M tint
ACS Anti-Roll(sway) bars
RPI Scoop
G-tech Pro RR
CF Roundels
CF Wheel caps
Originally Posted by JAY'545' post='704506' date='Oct 27 2008, 12:16 PM
Just curious, after all the mods u guys have made, sb,pulleys,intakes,etc. Why hasn't anyone gone to the track to c what gains or losses they have made? It seems you guys only test it on the hywy. Which is not the way to do it. Or it seems that u wait for someone to go and get a dyno to that you have loss or gained perfrm. The only way u will c or notice gains is installing gears ,exhaust or cam,heads,intake. Instead of doing a meet to to look at each others cars,why not meet and go down the track?
I don't need a track or dyno to tell me how my car feels though, on the highway and back roads is where it spends its time. The scoop/k&n are the only mods I need to test on a dyno because the difference was negligible to me but I'm not paying $200 to find out how a $99 scoop and a $50 air filter perform. If I was going to race another car them it would be worth my while...but for bragging rights...not worth it.
The meets are social events, its fun to look!
10-27-2008, 09:47 AM
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My Ride: 2008 550i Jet Black on Black Leather, SAT with Paddles, Logic 7, Comfort Seats, NAV, Sport Package, PDC, Xenons, Sirius, Trinity 12W LED Angel Eyes, RPi GT Exhaust, M rear spoiler, ACS Roof Spoiler, Tinted Tail Lights, Bimmian Carbon Fiber Pillar Trim, Bimmian Shadow 550i emblem, RPi Scoop, E60 Forum Cling, Mtec bulbs in fog lights, Mtec 2W LED for License Plate Light Bulbs, K&N Filter, Bimmian LED Smoked Side Markers, Blackout roundels, Carbon Fiber Kidney Grills.
Retired Rides - 1989 325i convertible, 1995 M3, 2002 X5, 2005 545i, 2008 X5 (Lemon)
Don't forget to remove the floor mats for a REAL performance increase!! 
10-27-2008, 12:48 PM
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My Ride: 2005 545i with Sport Pkg, Nav, HUD, Cold Weather Pkg, Rear Shades
Originally Posted by flyingpuck' post='704562' date='Oct 27 2008, 12:47 PM
Don't forget to remove the floor mats for a REAL performance increase!!
10-27-2008, 02:12 PM
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My Ride: 2008 BMW 550i
2006 BMW X3
It depends on what you're looking for.
Track testing is the best way to see actual benefit. "If I spend $XXXX, will I see a 1/2 second 1/4 mile gain or a 2 second lap time gain?" However, track tests show top end more than anything, especially a 1/4 mile test that stays in the high RPMs most of the time. A big gain of low end torque would be felt on the street but may not help improve times at the track.
A dyno test can show the whole picture but may not show real world high speed gains (due to lack of airflow, etc).
The butt dyno is important but can be fooled. You might perceive more top end but it might actually be a litte less at the bottom making it feel like you gain at the top.
Track testing is the best way to see actual benefit. "If I spend $XXXX, will I see a 1/2 second 1/4 mile gain or a 2 second lap time gain?" However, track tests show top end more than anything, especially a 1/4 mile test that stays in the high RPMs most of the time. A big gain of low end torque would be felt on the street but may not help improve times at the track.
A dyno test can show the whole picture but may not show real world high speed gains (due to lack of airflow, etc).
The butt dyno is important but can be fooled. You might perceive more top end but it might actually be a litte less at the bottom making it feel like you gain at the top.
10-27-2008, 03:45 PM
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My Ride: 14 550i
Jay -
You bring up some good questions but I have to COMPLETELY disagree with the following statement you make: "The only way u will c or notice gains is installing gears ,exhaust or cam,heads,intake."
BTW, do you have scans of your dyno chart, 1/4 mile, auto-x times, or track times?
Michael
You bring up some good questions but I have to COMPLETELY disagree with the following statement you make: "The only way u will c or notice gains is installing gears ,exhaust or cam,heads,intake."
BTW, do you have scans of your dyno chart, 1/4 mile, auto-x times, or track times?
Michael
Originally Posted by JAY'545' post='704506' date='Oct 27 2008, 09:16 AM
Just curious, after all the mods u guys have made, sb,pulleys,intakes,etc. Why hasn't anyone gone to the track to c what gains or losses they have made? It seems you guys only test it on the hywy. Which is not the way to do it. Or it seems that u wait for someone to go and get a dyno to that you have loss or gained perfrm. The only way u will c or notice gains is installing gears ,exhaust or cam,heads,intake. Instead of doing a meet to to look at each others cars,why not meet and go down the track?
10-27-2008, 04:50 PM
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My Ride: '05 545 Titanium Silver, Black Leather - Nav, Logic 7, Cold weather.
Mods:
Carbon filter removed.
M5 iDrive knob.
Umnitza license plate LEDs.
MP3
40% 3M tint
ACS Anti-Roll(sway) bars
RPI Scoop
G-tech Pro RR
CF Roundels
CF Wheel caps
Originally Posted by JAY'545' post='704506' date='Oct 27 2008, 12:16 PM
... The only way u will c or notice gains is installing gears ,exhaust or cam,heads,intake....
10-27-2008, 09:24 PM
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My Ride: '05 545 Titanium Silver, Black Leather - Nav, Logic 7, Cold weather.
Mods:
Carbon filter removed.
M5 iDrive knob.
Umnitza license plate LEDs.
MP3
40% 3M tint
ACS Anti-Roll(sway) bars
RPI Scoop
G-tech Pro RR
CF Roundels
CF Wheel caps
Originally Posted by radz182' post='705055' date='Oct 27 2008, 10:11 PM
well, for me it's only for show! 
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