How much wheel lifiting is too much?
#61
Race Car
I didn't read all the pages, so sorry if this has been suggested already ... but one way to eliminate the wheel lifing would be to add wider (or stickier) rubber at the rear. This would allow you to stiffen the rear sway or soften the front sway without upsetting the car's balance. Of course, more or stickier rubber may or may not be an option depending on what fits and tire compound availability.
Scott T.
Scott T.
Scott
#66
Rennlist Member
Thread Starter
#69
Rennlist
Basic Site Sponsor
Basic Site Sponsor
Join Date: Jun 2008
Location: Durham, NC and Virginia International Raceway
Posts: 19,139
Received 3,316 Likes
on
1,885 Posts
__________________
-Peter Krause
www.peterkrause.net
www.gofasternow.com
"Combining the Art and Science of Driving Fast!"
Specializing in Professional, Private Driver Performance Evaluation and Optimization
Consultation Available Remotely and at VIRginia International Raceway
-Peter Krause
www.peterkrause.net
www.gofasternow.com
"Combining the Art and Science of Driving Fast!"
Specializing in Professional, Private Driver Performance Evaluation and Optimization
Consultation Available Remotely and at VIRginia International Raceway
#70
Drifting
With enough tire grip, most road cars with relatively high centre of gravity and suspension design limitations, even the most perfectly setup car, will reach a point where they will lift inside wheels. If you had enough grip they could eventually roll over. As long as there isn't a big imbalance between front and rear in the amount of wheel lift, it may just indicate you are reaching the physical limits of cornering force for that particular setup.
#71
I've been moderately successful in making those 996 chassis cars handle well and turn some fast laps, with that in mind, the 996 sways mount to the upper portion of the strut housing which is a little different geometry than many other setups. Tarett offers a slightly better link. Also if the link or spring is not correct you can get some interference from the lower control arm, and or the spring not extending/compressing as it should.
What others have said before fits, if it's handling well and you are not having any issues it may be just fine. Lifting a wheel on a 911, especially a 996/997 chassis is not necessarily wrong or even a bad thing.
If you see me out at the track sometime just ask me and I can take a quick peek at your GT3 and see if I see anything that should be addressed. I will be at the PCA Club race at TWS, also some PDS days, and also will be down at MSR Houston some over the next few months.
What others have said before fits, if it's handling well and you are not having any issues it may be just fine. Lifting a wheel on a 911, especially a 996/997 chassis is not necessarily wrong or even a bad thing.
If you see me out at the track sometime just ask me and I can take a quick peek at your GT3 and see if I see anything that should be addressed. I will be at the PCA Club race at TWS, also some PDS days, and also will be down at MSR Houston some over the next few months.
#72
Nordschleife Master
Join Date: Feb 2011
Location: Deep Downtown Carrier, OK
Posts: 5,297
Likes: 0
Received 6 Likes
on
6 Posts
[QUOTE=onefastviking;9275266]I've been moderately successful in making those 996 chassis cars handle well and turn some fast laps,[QUOTE]
Yer way too modest. As much as it pains me to compliment a Texan, I must. Your recent cars seem to be very quick.
You must get better Nitrous down there...
Yer way too modest. As much as it pains me to compliment a Texan, I must. Your recent cars seem to be very quick.
You must get better Nitrous down there...
#73
[quote=KaiB;9275468][QUOTE=onefastviking;9275266]I've been moderately successful in making those 996 chassis cars handle well and turn some fast laps,
Yer way too modest. As much as it pains me to compliment a Texan, I must. Your recent cars seem to be very quick.
Thank you.
Will have a few out at TWS for the PCA club race so you can see them in person soon.
Yer way too modest. As much as it pains me to compliment a Texan, I must. Your recent cars seem to be very quick.
Will have a few out at TWS for the PCA club race so you can see them in person soon.
#74
Addict
Rennlist Member
Rennlist Member
Tom,
Check your picture files for wheel lift at TWS. Bet you won't find any. Or at the very least, the vast majority of your wheel lifts will be found at MSR and ECR, where elevation changes in the middle of the turns are to blame. I could be making the same mistakes as you in those same turns, but this much I'm pretty confident about: If I tried to drive those same turns so that all 4 wheels would stay on the ground, my lap times would suffer. Even in my old front-heavy C4 Cab, I could not keep all 4 wheels on the ground! It's the track. Stay on the gas!!!
Check your picture files for wheel lift at TWS. Bet you won't find any. Or at the very least, the vast majority of your wheel lifts will be found at MSR and ECR, where elevation changes in the middle of the turns are to blame. I could be making the same mistakes as you in those same turns, but this much I'm pretty confident about: If I tried to drive those same turns so that all 4 wheels would stay on the ground, my lap times would suffer. Even in my old front-heavy C4 Cab, I could not keep all 4 wheels on the ground! It's the track. Stay on the gas!!!