Corner Weights ..... What Would YOU Do?
Thread Starter
Drifting
Joined: Oct 2008
Posts: 1,297
Likes: 6
From: Omaha Nebraska
Corner Weights ..... What Would YOU Do?
All weights are dry with driver:
LF/RR Cross 1595 50.3% || RF/LR Cross 1569 49.6%
Front 1707 53.9
LF 872 27.5% || RF 835 26.4%
Left Side 1606 50.7% || Right Side 1558 49.2%
Total Weight 3164
LR 734 23.2% || RR 723 22.8%
Rear 1457 46.9
Swaybars disconnected, stock adjustment bolts on T1 springs. 100 lbs of fuel puts the F/R balance just shy of 52/48. Unfortunately I don't have the rake measurements..........
This is my first attempt at cornerweighting the car myself as I've never had the scales to use........
Suggestions?
LF/RR Cross 1595 50.3% || RF/LR Cross 1569 49.6%
Front 1707 53.9
LF 872 27.5% || RF 835 26.4%
Left Side 1606 50.7% || Right Side 1558 49.2%
Total Weight 3164
LR 734 23.2% || RR 723 22.8%
Rear 1457 46.9
Swaybars disconnected, stock adjustment bolts on T1 springs. 100 lbs of fuel puts the F/R balance just shy of 52/48. Unfortunately I don't have the rake measurements..........
This is my first attempt at cornerweighting the car myself as I've never had the scales to use........
Suggestions?
Last edited by CP Thunder; Apr 26, 2011 at 01:45 AM.
Tech Contributor
Joined: Jan 2007
Posts: 19,566
Likes: 1,209
From: Dyer, IN
All weights are dry with driver:
LF/RR Cross 1595 50.3% || RF/LR Cross 1569 49.6%
Front 1707 53.9
LF 872 27.5% || RF 835 26.4%
Left Side 1606 50.7% || Right Side 1558 49.2%
Total Weight 3164
LR 734 23.2% || RR 723 22.8%
Rear 1457 46.9
Swaybars disconnected, stock adjustment bolts on T1 springs. 100 lbs of fuel puts the F/R balance just shy of 52/48. Unfortunately I don't have the rake measurements..........
This is my first attempt at cornerweighting the car myself as I've never had the scales to use........
Suggestions?
LF/RR Cross 1595 50.3% || RF/LR Cross 1569 49.6%
Front 1707 53.9
LF 872 27.5% || RF 835 26.4%
Left Side 1606 50.7% || Right Side 1558 49.2%
Total Weight 3164
LR 734 23.2% || RR 723 22.8%
Rear 1457 46.9
Swaybars disconnected, stock adjustment bolts on T1 springs. 100 lbs of fuel puts the F/R balance just shy of 52/48. Unfortunately I don't have the rake measurements..........
This is my first attempt at cornerweighting the car myself as I've never had the scales to use........
Suggestions?
Melting Slicks
Joined: Aug 2004
Posts: 3,003
Likes: 89
From: Indy IN
You are real close.
The cross weights should be equal. You need to add about 7 pounds to the left rear, and that will also reduce the left front weight by the same 7 pounds. Just give the left rear bolt about 1/16th of a turn and you are done.
When you are done it should be about: LF=865, RF=842, LR= 741 RR=716.
Doesn't sound like much but it will take some of the load off of the left front. If you are going to error, it should be the other way, that is, with a bit more weight on the RF than perfect, because the LF weight is higher and that tends to make it push if you overload that tire.
If you have access to the scales you should let the front end settle and the bolts deform for a couple of days of driving before you corner weight it again, and then do all of the adjustment with the rear bolts. The deformantion of the front bolts can throw off corner weights so it's better not to muck with them once they have deformed and are settled out.
The cross weights should be equal. You need to add about 7 pounds to the left rear, and that will also reduce the left front weight by the same 7 pounds. Just give the left rear bolt about 1/16th of a turn and you are done.
When you are done it should be about: LF=865, RF=842, LR= 741 RR=716.
Doesn't sound like much but it will take some of the load off of the left front. If you are going to error, it should be the other way, that is, with a bit more weight on the RF than perfect, because the LF weight is higher and that tends to make it push if you overload that tire.
If you have access to the scales you should let the front end settle and the bolts deform for a couple of days of driving before you corner weight it again, and then do all of the adjustment with the rear bolts. The deformantion of the front bolts can throw off corner weights so it's better not to muck with them once they have deformed and are settled out.
Thread Starter
Drifting
Joined: Oct 2008
Posts: 1,297
Likes: 6
From: Omaha Nebraska
Thread Starter
Drifting
Joined: Oct 2008
Posts: 1,297
Likes: 6
From: Omaha Nebraska
Solofast.......I was thinking along that line but didn't think the actual adjustment would be so small......will play with it these evening after work.
Having cool tools to do your job is too cool !!!!
Anyone have a simulator program for cornerweighting?? That could be fun too!!
Having cool tools to do your job is too cool !!!!
Anyone have a simulator program for cornerweighting?? That could be fun too!!
Last edited by CP Thunder; Apr 26, 2011 at 11:23 AM.
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Thread Starter
Drifting
Joined: Oct 2008
Posts: 1,297
Likes: 6
From: Omaha Nebraska
Well..........nice job Solo.......it took a bit more than a 1/16 but we are 50/50 cross weight adjusting just he LR..........
Damn I love this stuff......!!!
Gonna do the 944T next week when we get back from HPT. It has coilovers!!! And as far as I know, never cornerweighted...........
Damn I love this stuff......!!!
Gonna do the 944T next week when we get back from HPT. It has coilovers!!! And as far as I know, never cornerweighted...........
Thread Starter
Drifting
Joined: Oct 2008
Posts: 1,297
Likes: 6
From: Omaha Nebraska
UPDATE:
After futzing around with some settings, here is what I ended up with (w/driver, sways off, about 8 gallons of fuel)
LF/RR Cross 1608 50% || RF/LR Cross 1613 50%
Front 1716 53%
LF 876 27% || RF 840 26%
Left Side 1649 51% || Right Side 1572 49%
Total Weight 3221
LR 773 24% || RR 732 23%
Rear 1505 47%
I love new toys..................BTW.......the Porsche needed corner weighting BADLY. Coilovers were all over the place.........its 50/50 cross now too!!
After futzing around with some settings, here is what I ended up with (w/driver, sways off, about 8 gallons of fuel)
LF/RR Cross 1608 50% || RF/LR Cross 1613 50%
Front 1716 53%
LF 876 27% || RF 840 26%
Left Side 1649 51% || Right Side 1572 49%
Total Weight 3221
LR 773 24% || RR 732 23%
Rear 1505 47%
I love new toys..................BTW.......the Porsche needed corner weighting BADLY. Coilovers were all over the place.........its 50/50 cross now too!!
