Corner Balance, Idiot check of percentages... Options

[yeahmag]

I'm getting very close to aligning and corner weighting the car. What sort of percentages should i be looking for in cross and front to rear? I would guess 50% cross with me in it and closer to 45% front/55% rear.

[stimpyvan]

Just out of curiosity, why not 50/50? Is everybody dead set against adding ballast?

Van

[J P Stein]

Just out of curiosity, why not 50/50? Is everybody dead set against adding ballast?

Van

After busting my chops REDUCING weight, it pained me to add ballast to make class minimum.
Adding weight for any reason beyond class requirements is an anathema.
Shifting weight to get ( let's say ) side to side balance is SOP.

Personally, I like a rearward weight bias percentage in the mid to high 50s.
spending a lot of time fooling around with corner weights becomes moot under most non-static activities...makes ya feel good, tho. Note tires contact.
Care to guess the percentage of car weigh on that left rear?

[stimpyvan]

Just out of curiosity, why not 50/50? Is everybody dead set against adding ballast?

Van

After busting my chops REDUCING weight, it pained me to add ballast to make class minimum.
Adding weight for any reason beyond class requirements is an anathema.
Shifting weight to get ( let's say ) side to side balance is SOP.

Personally, I like a rearward weight bias percentage in the mid to high 50s.
spending a lot of time fooling around with corner weights becomes moot under most non-static activities...makes ya feel good, tho. Note tires contact.
Care to guess the percentage of car weigh on that left rear?

We had to add about 80 Lbs of ballast to our RX7 to get to 25/25/25/25. I wasn't wild about adding the weight, but without it the car felt as though it was trying to kill you in every corner (the transition from understeer to oversteer was very abrupt) and 90 minutes of that was very fatiguing. We had already done everything we could to eliminate/transfer weight.

I haven't driven a 914 in about 25 years and I can't remember what the handling was like. Is the preference for a slightly rear weight bias because of the open diff?

What wheels are on the back of that car?

Thanks!