Hi, i'm new here. My questions is, does the FD really have a perfect 50 50 weight distribution? My friend at school told me it doesn't, but the FC has a 48 52 distribution?????? I'm confused.

the FC has 49.8/50.2

Im not sure about the FD

print this out and show your friend that hes a queer and doesn't have any idea what hes talking about.
http://files.automotiveforums.com/gallery/watermark.php?file=/503/67256weight.jpg

and as far as the FD goes... who cares? FC's are way cooler!

no but I'm like 99% sure they are the same because the FD's are barely heavier (30 lbs heavier than the FC is all) and it has the same basic design with the same basic engine, just the looks of the car changed really, so again, tell your friend he sucks, then tell him you don't wanna be his friend anymore :)

Check your PMs RXspeed!

thanx alot. I'll tell him he's stupid!!!!

the FD is 50/50

why'd you bring this back up?

I was bored and somebody made a comment about FC being better.

acctually your suck because the FD is not 50/50, the FC is closer than the FD so shut up untill you learn something

someone know why this 50/50 balance makes a car better ? i mean, on a racetrack or autoX event, the car is always decelerating or accelerating, the weight is always shifter in front, or back, or on the sides, therefore the balance is always fucked up, no ?

true but the weight of the car would be easier to handle if it was balanced I would think. What do you guys think?

the car weight nothing

ask the porshe drivers how well is their weight balanced in their flat 6 rear engine rear wheel drive car, still the car is better than most of the 50/50 balanced cars, that is because of how the car was made. an FD is not that special, but the extraordinary suspension setup and its very light weight makes a very fast car arround the track.

ive heard the best weight ballance was 40 front 60 back... *shrugs

someone know why this 50/50 balance makes a car better ? i mean, on a racetrack or autoX event, the car is always decelerating or accelerating, the weight is always shifter in front, or back, or on the sides, therefore the balance is always fucked up, no ?

I always wondered about that.

50/50 weight ratio pretty much cuts out under or over steer. even though the weight is shifting all the time it is shifting more evenly than it would if it weren't balanced. plus the weight ratio is under acceleration so its totally even at that point

No, the 50/50 balance is a static measurement WITH driver (not moving). Which means that driver weight plays a part. What's teh balance with a light driver? A heavy driver? And then, what if you add a passenger? What about a 150 lb roll cage? or a load in teh hatch area (like heavy speakers)? A "perfect" 50/50 is not only not as important as magazine racers think, it's simply irrelevant in actual use, especially in a reltively heavy street car on street tires.

A slight front bias (up to 60% Front) aids in stability. A slight rear bias (up to 60%) aids in braking and cornering, as most cornering on a track is done from a position of slowing down into the corner. (that's why rear mid engine cars are the layout of choice for road racing). My V8 converted FC was 49/51 f/r without me in it, so it went to a bit more rearward bias with me in it, which made it absolutly excellent for slalom racing and track use.

thats a good post, thanks Chris

ofcourse it can be thrown off with speakers, a passenger, ect. but why have that stuff if your racing? kick your passenger out to the side, remove your speakers cuz they are a 5 minute job

oh and usually a roll cage would put somewhat even weight f/r... with maybe just a little more in the rear

and an rx-7 has 50/50 weight ratio under acceleration like I just told you... I need to start saving sites where I find this kind of info cuz no one ever listens

I mentioned things like speakers and passengers because 90% of the time people that brag about how their car has perfect balance, HAVE those things in it when they drive fast on the street (since most of them don't ever take it on an actual competetition track). If it works good with all that stuff in it, then it's obvious that haivng the balance perfect in STATIC form isn't as important.

And yes, you said it has 50/50 on accelleration. It doesn't. They were actually prety close to 50/50 STATIC, but that depended on driver weight and fuel load, and have rearward weight transfer under accelelration and forward weight transfer under braking.

Something else that a lot of people don't understand is what you can do with weight transfer. Changing spring and swaybar rates changes where that weigh goes under various forms of accelleration/decelleration (both longitudinal and lateral). I can chage where the weight is carried front/rear even statically by changing spring rates. I can change how much is transferred, and where, by changing shocks and changing swaybars.