I refuse theory about heavier car with RFTs
03-10-2007 | 12:09 PM
#21
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From: Chippenham, Wiltshire UK
My Ride: F11 535i M-Sport,, Silver, Black Leather, LED Adaptive headlights
Model Year: 2015
Engine: N55
From the Bridgestone website.
Potenza RE050 RFT 245/40/10 31Lbs
Potenza RE050 Non RFT 27Lbs.
The RFT is 14.8% heavier.
Might not seem a lot, but ask a racing driver about adding 4lbs unsprung weight to each corner, he would not be amused.
Unsprung weight makes quite a difference to handling.
Now, if you change rims you could well end up with heavier 'corners' but that is not the point, the issue raised was the weight advantage/disadvantage of RFT's.
Potenza RE050 RFT 245/40/10 31Lbs
Potenza RE050 Non RFT 27Lbs.
The RFT is 14.8% heavier.
Might not seem a lot, but ask a racing driver about adding 4lbs unsprung weight to each corner, he would not be amused.
Unsprung weight makes quite a difference to handling.
Now, if you change rims you could well end up with heavier 'corners' but that is not the point, the issue raised was the weight advantage/disadvantage of RFT's.
03-10-2007 | 12:28 PM
#22
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From: Chalandri/Athina/Hellas
Originally Posted by KAF' post='401202' date='Mar 10 2007, 10:09 PM
From the Bridgestone website.
Potenza RE050 RFT 245/40/19 31Lbs (edit19)
Potenza RE050 Non RFT 27Lbs.
The RFT is 14.8% heavier.
Might not seem a lot, but ask a racing driver about adding 4lbs unsprung weight to each corner, he would not be amused.
Unsprung weight makes quite a difference to handling.
Now, if you change rims you could well end up with heavier 'corners' but that is not the point, the issue raised was the weight advantage/disadvantage of RFT's.
Potenza RE050 RFT 245/40/19 31Lbs (edit19)
Potenza RE050 Non RFT 27Lbs.
The RFT is 14.8% heavier.
Might not seem a lot, but ask a racing driver about adding 4lbs unsprung weight to each corner, he would not be amused.
Unsprung weight makes quite a difference to handling.
Now, if you change rims you could well end up with heavier 'corners' but that is not the point, the issue raised was the weight advantage/disadvantage of RFT's.
03-10-2007 | 02:05 PM
#23
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From: Italy, Milano
My Ride: 545i SMG with Limited Slip Differential
Model Year: 2005
Originally Posted by nicke60gre' post='401175' date='Mar 10 2007, 07:42 PM
Faulty scale :thumbsdown:
http://forum.e46fanatics.com/showpost.php?...p;postcount=813
I'm gonna burn them
340 Rwhp
No comment
http://forum.e46fanatics.com/showpost.php?...p;postcount=813
I'm gonna burn them
340 Rwhp
No comment
340 RWHP ? 400 HP at the engine starting from 231 hp ?
03-10-2007 | 02:52 PM
#24
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From: Chalandri/Athina/Hellas
Originally Posted by AlexFW' post='401248' date='Mar 11 2007, 12:05 AM
Ah, sorry, I forgot new engine + ESS .
340 RWHP ? 400 HP at the engine starting from 231 hp ?
340 RWHP ? 400 HP at the engine starting from 231 hp ?
http://forum.e46fanatics.com/showthread.php?t=404585
03-11-2007 | 03:39 AM
#25
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From: Italy, Milano
My Ride: 545i SMG with Limited Slip Differential
Model Year: 2005
Originally Posted by nicke60gre' post='401256' date='Mar 10 2007, 11:52 PM
Question : if the simple stage2 from VF will bring 545i to 520-530 HP ... And If you have exhaust, kat, headers etc. and you arrive to 550-600 HP ... With 8 PSI by ESS what hell .. ?
700 ?Crazy
.PS :
Nick, do you know that you will have 550i consumption, with the 3.0i kompressor ?
Yes, I know ...
03-11-2007 | 04:02 AM
#26
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From: Chalandri/Athina/Hellas
Originally Posted by AlexFW' post='401410' date='Mar 11 2007, 12:39 PM
Unbelievable! But that is a Z4 that is lighter .. Probably you will achieve to reach 17-18s, like me when I will have finished mods .
Question : if the simple stage2 from VF will bring 545i to 520-530 HP ... And If you have exhaust, kat, headers etc. and you arrive to 550-600 HP ... With 8 PSI by ESS what hell .. ? 700 ?
Crazy .
PS :
Nick, do you know that you will have 550i consumption, with the 3.0i kompressor ?
Yes, I know ...
Question : if the simple stage2 from VF will bring 545i to 520-530 HP ... And If you have exhaust, kat, headers etc. and you arrive to 550-600 HP ... With 8 PSI by ESS what hell .. ?
700 ?Crazy
.PS :
Nick, do you know that you will have 550i consumption, with the 3.0i kompressor ?
Yes, I know ...
No that much, there are reviews that they've measured the consumption at 10lt./100km. on 600 km highway driving with 160 km/h average speed, but as always, it depends to the drivers foot
03-11-2007 | 07:33 AM
#27
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From: Italy, Milano
My Ride: 545i SMG with Limited Slip Differential
Model Year: 2005
Originally Posted by nicke60gre' post='401413' date='Mar 11 2007, 12:02 PM
Yes, I know that Z4 is much lighter, but I'm talking about the 3.0 M54 Engine.
No that much, there are reviews that they've measured the consumption at 10lt./100km. on 600 km highway driving with 160 km/h average speed, but as always, it depends to the drivers foot
No that much, there are reviews that they've measured the consumption at 10lt./100km. on 600 km highway driving with 160 km/h average speed, but as always, it depends to the drivers foot
I don't believe to 10 kml : Mini Cooper S (R53) covers less than 9 km with a liter of gas (130 kmh average speed) ... And 6 in the city .
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