liftback weight distribution

[reznunt]

anyone figure it out for a stock lb? i searched but could not find any useful info and i need this info for a small project. if not, anyone know where i can rent something like this: http://www.saferacer.com/co15ac.html

[Pars]

I also haven't been able to find any article or posting for the Yaris's weight distribution. I suspect, it's probably very evenly distributed, given the lack of tracing from the front wheels and the great handling dynamics.

[kurokoma-kun]

I was curious about this too, but everywhere I looked it just said unlisted. My other car's weight balance is near 50:50 and the Yaris is nowhere near that...

[death is my gift]

Speaking of weight distribution, I had a bunch of groceries in the back of my hatch the other day and the handling was waaaaay better than usual. I dunno if it was in my head or not but it seemed like she was runnin' better.

[kurokoma-kun]

Not your imagination. Having weight in the back provides more stability. The engine weight is over the drive wheels in front, which can make the back end a little squirrely.

When I brought my new wheels home from the tire shop (about 150 lbs) it had the most sure-footed feel since I bought it though I could really feel that extra weight in the acceleration.

[death is my gift]

Originally Posted by kurokoma-kun

Not your imagination. Having weight in the back provides more stability. The engine weight is over the drive wheels in front, which can make the back end a little squirrely.

When I brought my new wheels home from the tire shop (about 150 lbs) it had the most sure-footed feel since I bought it though I could really feel that extra weight in the acceleration.

ur hot

[death is my gift]

Originally Posted by kurokoma-kun

though I could really feel that extra weight in the acceleration.

As could I but I bet having all that weight all the time would screw up my mpg.

[03Z33]

Yaris is very front heavy in stock form, but it works. The stock car is roughly 61% Front and 39% Rear. My car with the back seats and spare tire removed is 63% Front and 37% Rear.

Originally Posted by reznunt

anyone figure it out for a stock lb? i searched but could not find any useful info and i need this info for a small project. if not, anyone know where i can rent something like this: http://www.saferacer.com/co15ac.html

I own a set of scales, just let me know if you really want to corner balance your car.

I was able to get my R/L and cross weights to 50/50% which is great, it makes a big improvement in the handling and predictability of the car and is much more important than F/R balance on a car like this.

[kurokoma-kun]

Originally Posted by 03Z33

I was able to get my R/L and cross weights to 50/50% which is great, it makes a big improvement in the handling and predictability of the car and is much more important than F/R balance on a car like this.

How did you do this? As you say, this little car is all about momentum, and the F/R weight shift is something I think you can learn to exploit. But I just can't get used to all the side-to-side action.

[03Z33]

Originally Posted by kurokoma-kun

How did you do this?.

When you raise and lower each individual corner of the car the distribution will change. I use coilover springs to adjust the height, others use shims or move things around in the car.

When I started my side to side was actually really good, around 51.4% right. After making a few quick changes, it actually fell right into place and with me in the drivers seat, no passenger the car is near perfect 50/50%

Originally Posted by kurokoma-kun

As you say, this little car is all about momentum, and the F/R weight shift is something I think you can learn to exploit. But I just can't get used to all the side-to-side action.

That is my favorite part They just don't make too many fun cars like this anymore! The best advice I can offer is build up your driving slowly, do some autocross or gymkhana style events and learn to be SMOOTH

[kurokoma-kun]

*sigh* I may have to pop for coilovers after all... everyone keeps saying there is nothing else like them...

[brickhardmeat]

Originally Posted by kurokoma-kun

*sigh* I may have to pop for coilovers after all... everyone keeps saying there is nothing else like them...

yeah, go for coilovers

you'll just wish you had if you don't

[reznunt]

Originally Posted by 03Z33

Yaris is very front heavy in stock form, but it works. The stock car is roughly 61% Front and 39% Rear. My car with the back seats and spare tire removed is 63% Front and 37% Rear.



I own a set of scales, just let me know if you really want to corner balance your car.

I was able to get my R/L and cross weights to 50/50% which is great, it makes a big improvement in the handling and predictability of the car and is much more important than F/R balance on a car like this.

THIS is exactly what i need them for as i was going to do a battery relocation into the spare wheel well. most people think i'm asking about just front-rear distribution when i really was interested in corner balancing. i just wanted to know how far to mount the battery to the right to offset the fuel tank.

i'd love to put my car up on the scales... but i have nothing to offer you in return other than maybe a case of beer and a bucket of chicken. what's your price?

or, if you need tires (and i'm assuming you do since you track your car), i can give you my cost on tires. paint too. let me know

[03Z33]

Originally Posted by reznunt

THIS is exactly what i need them for as i was going to do a battery relocation into the spare wheel well. most people think i'm asking about just front-rear distribution when i really was interested in corner balancing. i just wanted to know how far to mount the battery to the right to offset the fuel tank.

i'd love to put my car up on the scales... but i have nothing to offer you in return other than maybe a case of beer and a bucket of chicken. what's your price?

or, if you need tires (and i'm assuming you do since you track your car), i can give you my cost on tires. paint too. let me know

Just send me a PM, I'm sure we can work something out. I'll be out of town until Tuesday next week though.

As far as battery goes, I didn't bother with relocating it since it is only 13lbs. (light weight battery). I never liked the idea of having the battery inside the cabin and most times when you add up all the heavy gauge wiring and battery boxes that SCCA require, you end up adding more weight than it's worth.

BTW, the gas tank is pretty well centered in this car, just the filler is on the drivers side. If I was to mount the battery in the back, I would do it on the drivers side since that would help with your corner/cross weight the most. That's if you couldn't mount it in the center, below where the passenger feet would be.

[reznunt]

Originally Posted by 03Z33

Just send me a PM, I'm sure we can work something out. I'll be out of town until Tuesday next week though.

As far as battery goes, I didn't bother with relocating it since it is only 13lbs. (light weight battery). I never liked the idea of having the battery inside the cabin and most times when you add up all the heavy gauge wiring and battery boxes that SCCA require, you end up adding more weight than it's worth.

BTW, the gas tank is pretty well centered in this car, just the filler is on the drivers side. If I was to mount the battery in the back, I would do it on the drivers side since that would help with your corner/cross weight the most. That's if you couldn't mount it in the center, below where the passenger feet would be.

actually, you're right about the added weight. i forgot to add the weight of the 1/0 cable, battery box, distribution block, blah blah.

also, i just got up under the car today and it's just as you described. the tank is smack dab in the center.

i think i'll just drop in a lightweight battery in the stock location and call it a day. saves a lot of hassle.

thanks for the offer though! it's the thought that counts!

[sherryberry]

i have no idea how to put on coilovers or what to do. i'm a total n00b. i've never modified a car personally. I have stuff in my trunk right now but I don't know if I notice any kind of change in performance. but i guess i'll see once i get rid of the stuff in the back.

[BlueFlash]

i keep my weight balanced by saying "NO" to fat chicks

[brickhardmeat]

Originally Posted by BlueFlash

i keep my weight balanced by saying "NO" to fat chicks

I just pick them up in pairs.