R7's and chassis setup - the week after
03-16-2017, 04:16 PM
#16
Rennlist Member
Thread Starter
I would stiffen the front sway, soften the rear sway if it's oversteering too much. My car came with rear set at nearly full stiff front at nearly full soft and it was a handful. I'm now at one from full stiff on the front and full soft on the rear and it's very neutral.
I'd run a bit more front negative camber if you can. Around -2.8 to -3 would be better with Hoosiers. I think your starting pressures might be a tad low, try something like 25R 27F cold and bleed them off to low 30's when hot.
What lap times are you running at COTA on the R7s?
I'd run a bit more front negative camber if you can. Around -2.8 to -3 would be better with Hoosiers. I think your starting pressures might be a tad low, try something like 25R 27F cold and bleed them off to low 30's when hot.
What lap times are you running at COTA on the R7s?
Times: Never got an open lap at PCA with right pressures (too overinflated on the first runs), cumulative time at last session and extrapolating the gains through T6 to all remaining twisted sectors would predict 1.5 to 2 sec off the MPSC2, that would take it to 2:26ish at best. But not yet feeling very comfortable in pushing the R7's as much as I do on the SC2.
03-17-2017, 09:41 AM
#18
Rennlist Member
Sorry, coming to this thread late. I agree with Cory about adding more rear toe in. Also go to zero front toe. See how this works IMO before chasing sway bars.
03-17-2017, 10:52 AM
#19
Addict
Rennlist Member
Rennlist Member
The most effective and efficient way to optimize your car set-up for a specific track is work with a pro, data and a shop that has good track support and experience on your type of car. The pro driver can help you calibrate your butt to what is holding you back from going faster set-up wise and the mechanics will be able to make quick changes to various set-ups throughout your day.
It's sounds expensive but it eliminates the guessing game that usually prolongs finding a good compromise solution and enhances your learning experience. Just saying....
It's sounds expensive but it eliminates the guessing game that usually prolongs finding a good compromise solution and enhances your learning experience. Just saying....
Last edited by Frank 993 C4S; 03-17-2017 at 10:55 PM.
03-17-2017, 12:38 PM
#20
Rennlist Member
^ Yes, yes, and yes (Cory, Dave, Frank).
Also a good idea to spend a day doing 'sweeps' with both your shock (if adjustable) and sway adjustments so that you get an understanding of what impact the adjustment ranges have on car balance and behaviour at corner entry, mid, and exit. Keep a wee notebook (Dave has a 'my little pony' one) and record your impressions.
Also a good idea to spend a day doing 'sweeps' with both your shock (if adjustable) and sway adjustments so that you get an understanding of what impact the adjustment ranges have on car balance and behaviour at corner entry, mid, and exit. Keep a wee notebook (Dave has a 'my little pony' one) and record your impressions.
03-17-2017, 12:43 PM
#21
Rennlist Member
You're just jealous 
03-17-2017, 12:56 PM
#22
Rennlist Hoonigan
which cost no drachmas
Lifetime Rennlist
Member
Rennlist
Site Sponsor
which cost no drachmas
Lifetime Rennlist
Member
Rennlist
Site Sponsor
Also a good idea to spend a day doing 'sweeps' with both your shock (if adjustable) and sway adjustments so that you get an understanding of what impact the adjustment ranges have on car balance and behaviour at corner entry, mid, and exit. Keep a wee notebook (Dave has a 'my little pony' one) and record your impressions.
This is the key to understanding how to setup your car. It's how the pros know and you'll someday know (or not).