Yeah...really not worth it in the R53

once i get my classic mini i will show off how light it will be. i will make your MINIS look like buses by comparison.

Please do! I've ridden in some classics, including some with V-Techs and damn, they're quick!

Nitrogen in tyres is a nice $10 to$15 mod.

Whats the advantage of this?

I believe it's slightly lighter than regular breathing air but it's also a lot more stable. It doesn't change pressure as it heats up or cools off. NASCRAP and most sanctioning bodies use it due to increased stability under load.

i run a single side muffler on my cooper s and it still splits to the other side where i have a 60° turn down with a block plate that i remove when i go to the track for straight pipe action! its definably loud but sounds really good and add a dyno shown 11whp with straight pipe. doing straight pipe loses low end torque but you gain hp in the top end. in total i have lost around 20 lbs from the exhaust.

in all i think the biggest noticeable part to the car being lighter is getting light weight wheels. the stock s-lites are around 26-27lbs if im not mistaken. your best bet is throwing some winter tires on them if you live in an area with snowy winters and getting some lighter wheels for daily spring through fall driving. i run the 17" kosi k1 ts which is around 14lbs for daily driving which a nice set of performace tires on em and i drop to 16" ssr comps which are 11lbs with slicks for the race track. even between the 14 and 11lbs wheels makes a night an day difference with the all around driveablity of the car.

Nitrogen comes standard in all tires from the place where I buy my tires. Personally I think its a load of crap. Sure Nascar uses it because its more stable and it wont elak as easy, but then again they are going for hours on end at speeds in excess of 180mph with different kind of tires than we're running.

My favorite part of the marketing scheme is in the shop where the pretty much say that having nitrogen in your tires will save you ~$500 a year in gas...B-----S------

I do love that line. It's amusing considering something around 78% of the atmosphere composition is nitrogen!

haha... that nitrogen is BS! what if your low on air huh? As for speedycoop's post- remember- its 3 pounds on EACH Wheel, aka 12 pounds less rotational weight. remember- that makes the biggest difference.

this is just for fun i guess. but here is what my 04 S sounds like with straight pipe on a road course. (btw i also have the miltek header with random technology cat and a resonator). enjoy!

http://www.youtube.com/watch?v=yZufc9yjJ48

Nice, yeah that is just a tad bit too loud for day to day ops. Nice driving though, and joliet isnt too far from here. Maybe i'll have to head up there sometime.

Damn man that is some sweet @$$ driving! You slapped the hell out of those guys. Nice job man and keep up the @$$ woopings on these so called sports cars!

haha thank you and i will keep up the "@$$ woopings"...haha

You do realize that having a single molecule of regular air in the tires will completely negate any benefit of using pure nitrogen in tires right? The race teams that use nitrogen in their tires have two valves, while they fill, the other valve spits out the air, they keep filing until all the air is flushed. Last I checked the 5-10 grams you'd save aren't going to be worth much in terms of weight reduction, you'd be better off driving without socks on. Race teams use nitrogen for tire stability at temperature, not because it's lighter. If you want lighter, use Helium (Please don't put hydrogen in your tires if you're going to be driving anywhere that gets over 80 degrees).

Best comment yet.

Here is your "Jazz" http://www.w8ji.com/rotating_mass_acceleration.htm