Corner Weight Balancing of 914s, The benefits of equalizing the side-to-side corner wts. |
|
Porsche, and the Porsche crest are registered trademarks of Dr. Ing. h.c. F. Porsche AG.
This site is not affiliated with Porsche in any way. Its only purpose is to provide an online forum for car enthusiasts. All other trademarks are property of their respective owners. |
|
Corner Weight Balancing of 914s, The benefits of equalizing the side-to-side corner wts. |
stewteral |
Dec 9 2009, 12:43 AM
Post
#1
|
Old Member Group: Members Posts: 384 Joined: 4-December 07 From: Camarillo, CA Member No.: 8,424 Region Association: Southern California |
Hey 914ers:
If you have been following my posts on 914 chassis settings, here is one that applies to ALL 914's. To start, per my posts: -I Squared the chassis with paralleled strings to measure and set the toe, front and rear. (Front = 0 to -1/16 toe, rear = 0 to -1/8" toe) =Results: steering a bit "nervous", but all else stable. -Camber: For Street cars, Standard front with -1 to -1.5 degrees rear. =Results: nothing noticeable. -I bumpsteered the front suspensions to within 0.008" from prefect at 2" compression. =Results: nothing I could feel driving the car on the street. TBD on-track. -CORNER WEIGHT BALANCED THE CHASSIS: With the car weighted for the driver weight, I adjusted the rear spring ht. and the front torsion bar ride height. For the rear, large diameter washers can be added to make adjustments, while the front is too easy with an 11 mm wrench. =Results: WONDERFUL!! With all the previous chassis settings done, the car still wanted to pull to the right as though I were on a highly crowned road. After the balancing the corner weights, side-to-side, the car now runs STRAIGHT and TRUE right down the road. The sense through the steering is now light, equal and very linear as to where I want to aim the car. Conclusion: Take the time to either build wt check lever, as per my photo or find a very strong STEEL ladder and wing it. Regardless, the benefit from the effort is completely WORTH IT!!! If you have any questions, please let me know! Terry stewteral@verizon.net |
neilca |
Feb 19 2010, 09:02 AM
Post
#2
|
Member Group: Members Posts: 98 Joined: 26-July 05 From: Marietta, GA Member No.: 4,474 |
I have set the ride height on the car and in the process of corner balancing. My car is right hand drive so the numbers will look a bit strange. LF=382#, RF=507#, LR=532#, RR=527# with the driver in the car and sway bar disconnected. Are you guys able to balance the front end with the driver in the car? BTW the driver in this case is 250#.
Thanks, neilca |
stewteral |
Feb 20 2010, 01:04 AM
Post
#3
|
Old Member Group: Members Posts: 384 Joined: 4-December 07 From: Camarillo, CA Member No.: 8,424 Region Association: Southern California |
I have set the ride height on the car and in the process of corner balancing. My car is right hand drive so the numbers will look a bit strange. LF=382#, RF=507#, LR=532#, RR=527# with the driver in the car and sway bar disconnected. Are you guys able to balance the front end with the driver in the car? BTW the driver in this case is 250#. Thanks, neilca Hi NeilCA, YES, you CAN do better on the corner weights. Even with the V8 engine my numbers were LF=645, RF=635; LR= 795, RR=755. That's 10 lbs diff front & 40 lbs rear. To get these result took a LOT or going around the car a corner at a time and a lot of patience. To get it close you will need rear ride height adjustability. So your choices are: -Stock 914 FAT shocks: Ground Control threaded alu perches + springs = $200. -If you are going for serious track driving, the Koni 8611 dual adjustables are the way to go and since they are the standard 2" diameter and cheaper adjustable perches are available. I hope this helps, Good Luck....Terry |
Lo-Fi Version | Time is now: 6th June 2024 - 01:41 AM |
All rights reserved 914World.com © since 2002 |
914World.com is the fastest growing online 914 community! We have it all, classifieds, events, forums, vendors, parts, autocross, racing, technical articles, events calendar, newsletter, restoration, gallery, archives, history and more for your Porsche 914 ... |