What was removed or replaced to get the weight saving?
I'm wondering what can be done to a standard car to improve the power/weight.
Yep spare wheel and jack n bits saves about 25kg
iirc glass roof mech/glass is 20kg
Rear seats base and back are about 20kg
2kg per wheel if you go from 8x19 Prodrive to OZ Ultraleggera's
5kg per wheel going from Ti's to those OZ Ultraleggera's
Two piece 330mm brembo front brake discs save 4kg per wheel
Car battery is about 22kg, change that for a lithium pack for 10kg weight saving.
Tein Circuit masters (alluminium mono tube) 1.5kg lighter than OEM on front each, and 1kg lighter on rear each.
Fuel at 1kg/ltr so run on empty all the time
So lets crunch some numbers and assume we can save about 100kg at best! I'm using this performance calculator: 0-60, 0-100 & 1/4 Mile Calculator :: TorqueStats Modified
Std FWD 210 bhp and 1650kg gives 0-60mph of 8.1sec , 60-100mph=14.5
+weight reductions: 210 bhp and approx 1550kg, 0-60mph=7.6sec , 60-100mph=13.0sec
+40bhp remap, 250 bhp and 1650kg, 0-60=6.9sec , 60-100mph=11.9sec
+40bhp remap, 250 bhp and 1550kg, 0-60=6.5sec , 60-100mph=10.2sec
Weight reduction and some more poooower!
305 bhp and 1550kg gives 0-60mph=5.7sec , 60-100mph=7.3sec...this 60-100 time is spot on from my own timing tests, so all figures above should be quite accurate.
The bigger picture of weight saving and how it effects "overall performance" is alot harder to show, but for simplicity just going on 0-60/60-100 shows some nice improvements, so up to you if you go for removing weight or adding power or both!