Post by scaryoldcortina on Sept 10, 2008 17:30:27 GMT
I'm a bit of a sceptic where sciency sounding claims go..... particularly stuff like nitrogen being "bigger" significantly than oxygen..... so I did a search, and discovered I'm not alone in my scepticism, someone else has saved me the bother of explaining it all. theforcethat.blogspot.com/2007/02/nitrogen-for-tires.html
Now, the reason for me being in this thread at all? I have real-world weight saving results for you. Hot -rod it ;D I weighed the rod today, kerb weight with full tank of fuel, 1500lbs (680kg) against published kerb weight of a '54 Austin A40 of 2232lbs (1015kg) means I have lost 732lbs (335kg) or roughly a third of the car's weight.
As said before, 1. minimise unsprung weight. 2. remove as much weight as possible from high up. This lowers the centre of gravity and reduces the rolling moment of the car (less body roll) 3. Try to move things that cannot be removed around the car. Lower items to lower centre of gravity. Move things to the middle (closer to the lenghtwise position of the centre of gravity) or closer to the driven wheels for extra grip.
All common sense really.
1979 Toyota Celica GT. Currently Gone.
1975 Toyota Celica ST. 13x7 Allycats, "the stick" applied. 100kW 4AGE... Sold
3. Try to move things that cannot be removed around the car. Lower items to lower centre of gravity. Move things to the middle (closer to the lenghtwise position of the centre of gravity) or closer to the driven wheels for extra grip.
I don't know whether you had anything similar in Europe but it was always traditional for Australian touring cars (circuit racing) in the old days to have "drop tanks" put on. The drop tank was a big (~120L or so) fuel tank for endurance races made of aluminium or stainless steel sheet and hung underneath the boot floor at the back of the car to help move the car's CG rearward and downwards. Been going on in Aussie racing for about 40 years, so it also became very popular as a fashion statement on street cars in the '70s and '80s. Just another thing. Although drop tanks usually add weight, you make up time between pit-stops!
Post by redbaronmulisha on May 16, 2010 13:45:26 GMT
depending on how serious you are about weight saving,all that scummy underseal under your car weighs a fair bit,surprising skoda and i have a drift project on atm that could be getting rid of its underseal, it is thoroughly stripped out,dash cut in half, most of the ancilliary bits in the engine bay are out, the only thing left to strip is the wiring loom it took us a while but the car is lighter than a feather plus it was free, stripping out really is one of those good value mods that makes a difference
if you're gonna do it wrong, you might as well do it wrong properly