Minimal Mods: B&B Exhaust/Dinan Throttle Body
02-25-2006, 09:46 PM
#51
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Originally Posted by Znod' post='245962' date='Feb 25 2006, 02:06 PM
To All:
My car's performance has continued to improve significantly since I demodded my car. I am convinced that, in my case, my mods hurt performance, and perhaps the learning ability of my car, after my 20.01.00 update. My car is flying high again now. If you are interested, then check out the g-meter testing thread or the straight-line performance thread on the main forum.
My car's performance has continued to improve significantly since I demodded my car. I am convinced that, in my case, my mods hurt performance, and perhaps the learning ability of my car, after my 20.01.00 update. My car is flying high again now. If you are interested, then check out the g-meter testing thread or the straight-line performance thread on the main forum.
02-26-2006, 11:40 AM
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My Ride: 545iSMGSilver GrayAuburn Dakota LeatherLogic 7 Premium SoundSports Package
Originally Posted by ipse dixit' post='241472' date='Feb 16 2006, 04:05 PM
Yes.
Ask some (many?) of the folks with E46 M3s, E39 M5s and Z8s. The Z8 issue is especially troublesome because, IIRC, Dinan actually inadvertantly "modified" the body structure of the Z8, but my memory could be failing me ...
Ask some (many?) of the folks with E46 M3s, E39 M5s and Z8s. The Z8 issue is especially troublesome because, IIRC, Dinan actually inadvertantly "modified" the body structure of the Z8, but my memory could be failing me ...
Edit: Here it is... I found it.
http://www.m5board.com/vbulletin/showthrea...an+frame+damage
Resolution on post #111
03-03-2006, 06:16 AM
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I am thinking that sometime modifying your car will eventually lead to worse performance. At least, that is what I have experience. I had the following modification on my car, ECU upgrade(+25hp/45Nm), Eisenmann exhaust(+5hp/7Nm), K&N air filter. I tried 0-60mph run with my friend who has a standard 645ci, and to my surprise this is the following 0-60mph/h test result:
My result-modified 645ci:
1st run: 6.45sec
2nd run: 6.37 sec
3rd run: 6.07 sec
My friend's result-standard 645ci:
1st run: 5.83sec
2nd run: 5.75sec
3rd run: 5.76sec
My result-modified 645ci:
1st run: 6.45sec
2nd run: 6.37 sec
3rd run: 6.07 sec
My friend's result-standard 645ci:
1st run: 5.83sec
2nd run: 5.75sec
3rd run: 5.76sec
BMW has the acceleration times almost the same (by .10sec) compared to a 545.. WAO 645s are very slow and convertibles are even slower 
no wonder I smoked a 645cic last time 
... so not even the 645 coupes are a match to a 5 series?
03-03-2006, 06:26 AM
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WOW why are the 645s slower? THought they were lighter and faster than the 545s just like the M6 is to the M5
03-03-2006, 06:57 AM
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Originally Posted by EBMCS03' post='249216' date='Mar 3 2006, 10:26 AM
WOW why are the 645s slower? THought they were lighter and faster than the 545s just like the M6 is to the M5
03-03-2006, 05:36 PM
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My Ride: 645Ci black/red, Eibach springs, K&N air filter, Wetterauer ECU upgrade, Eisenmann 83mmx4 exhaust, 20" Sportec wheels-Michelin PS2 tires, Hamann front add-on lip
Originally Posted by Don Juan' post='249203' date='Mar 3 2006, 10:16 AM
I can't believe those number BMW has the acceleration times almost the same (by .10sec) compared to a 545.. WAO 645s are very slow and convertibles are even slower no wonder I smoked a 645cic last time ... so not even the 645 coupes are a match to a 5 series?
BMW has the acceleration times almost the same (by .10sec) compared to a 545.. WAO 645s are very slow and convertibles are even slower no wonder I smoked a 645cic last time ... so not even the 645 coupes are a match to a 5 series?I think the 645 and 545 are quite similar in terms of accerleration time, I guess driver's weight and the weather condition also have some impact on the performance
. The weather condition of my test is 90% humidity and about 98 degrees F. We could probably post better result if the weather is cooler.... 
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