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N2k3 patch - do the draft maps work on add-on RC's?

12 posts by 7 people · 13 Aug 2003 17:44 UTC - 24 Aug 2003 17:43 UTC

Joachim Trensz 13 Aug 2003 17:44 UTC#57868
I'm noticing a strange understeer in long, fast corners, usually in off-throttle situations, where I was used to see the car oversteer, like when I release the throttle. This understeer is very strong, and almost impossible to get out of. And, it also happens when the tires are apparently not overheated (not yellow, temps around 200). I've made the mods you should make for the patch, and made the adjustments you try to make in for such situations, like springs, brake balance, ride height, weight distribution, camber, etc., so I wonder, could it be that those new aero-maps somehow don't work well under certain situations on the RC's? Others in my league notice it as well, but only on the road circuits. On the ovals things seem bright. Anyone got any comments regarding this? Achim
On Wed, 13 Aug 2003 19:44:05 +0200, "Joachim Trensz" <[email hidden]> wrote: >I've made the mods you should make for the patch, and made the adjustments >you try to make in for such situations, like springs, brake balance, ride >height, weight distribution, camber, etc., so I wonder, could it be that >those new aero-maps somehow don't work well under certain situations on the >RC's? I was under the impression that the aero maps were only changed at restrictor plate tracks. Is it possible this is a side effect of the new suspension geometry or the camber bug being fixed? If throttle-off oversteer is no longer happening, I wonder if maybe the dif model was changed... >Others in my league notice it as well, but only on the road circuits. On the >ovals things seem bright. I've seen similar understeer at Dover actually. I was pushing and lifted while down at the apron and the car still drifted all the way into the wall without giving my front tires grip. Jason
"jason moyer" wrote... > <snip> > I've seen similar understeer at Dover actually. I was > pushing and lifted while down at the apron and the car > still drifted all the way into the wall without giving > my front tires grip. That's because you lose the benifit of the stagger/trackbar when you coast (diff opens). Got to take off wheel lock, move some weight forward with the brakes and try to go around the turn again, especially at concrete tracks. Jan. =---
On Wed, 13 Aug 2003 21:46:57 GMT, "Jan Verschueren" <[email hidden]> wrote: >That's because you lose the benifit of the stagger/trackbar when you coast >(diff opens). Got to take off wheel lock, move some weight forward with the >brakes and try to go around the turn again, especially at concrete tracks. I'll try that. I was more or less noting it because I didn't see that behavior pre-patch. A quick lift tucked the nose in nicely before. Jason
Andy Wilke has meanwhile said he sees it at the ovals as well. I couldn't reproduce it there. It indeed always occurs when coasting or braking very moderately. What you say sounds plausible, and I tend to think meanwhile it's not the aero-maps, but it really doesn't feel like anything I've ever encountered in real cars, and believe me, I've driven all sorts of cars on and over the limit under every possible condition, even some with locking differentials. It does feel like flat front tires, so if it is an effect that actually occurs, I'd at least at this stage feel that it isn't modelled at the correct proportion. Another friend suggested it could be because we're driving on the rim? Achim "Jan Verschueren" <[email hidden]> wrote in message news:lly_a.65688$[email hidden]... ... > That's because you lose the benifit of the stagger/trackbar when you coast > (diff opens). Got to take off wheel lock, move some weight forward withthe > brakes and try to go around the turn again, especially at concrete tracks.
Well the understeer I'm describing definitely cannot be cured by a quick lift. Achim "jason moyer" <[email hidden]> wrote in message news:[email hidden]... ... > I'll try that. I was more or less noting it because I didn't see that > behavior pre-patch. A quick lift tucked the nose in nicely before.
What diff? Don't they still use spools? "Jan Verschueren" <[email hidden]> wrote in message news:lly_a.65688$[email hidden]... > > That's because you lose the benifit of the stagger/trackbar when you coast > (diff opens). Got to take off wheel lock, move some weight forward withthe > brakes and try to go around the turn again, especially at concrete tracks. > > Jan. > =--- > >
"Haqsau" wrote... > What diff? Don't they still use spools? Negative... Indycars use spools, Stock Cars use Detroit lockers... i.e. closed power side, open coast side. Jan. =---
> It indeed always occurs when coasting or braking very moderately. What you > say sounds plausible, and I tend to think meanwhile it's not theaero-maps, > but it really doesn't feel like anything I've ever encountered in realcars, > and believe me, I've driven all sorts of cars on and over the limit under > every possible condition, even some with locking differentials. It doesfeel > like flat front tires, so if it is an effect that actually occurs, I'd at > least at this stage feel that it isn't modelled at the correct proportion. > > Another friend suggested it could be because we're driving on the rim? > > Achim Hmm, a scary thought. When the first patch for GPL was released, I felt exactly the same. The physics were more biased towards heavy understeer - washing out. Some realism removed. Haven't tried the N2003 patch yet, but I desperately hope this issue will be fixed... /Matt
"Joachim Trensz" <[email hidden]> kirjoitti viestiss� news:bhdt9m$112f2l$[email hidden]... > I'm noticing a strange understeer in long, fast corners, usually in > off-throttle situations, where I was used to see the car oversteer, like > when I release the throttle. This understeer is very strong, and almost > impossible to get out of. And, it also happens when the tires areapparently > not overheated (not yellow, temps around 200). You may be running the front of the car too low and soft; when you lift the throttle, front comes down and you lose downforce when it gets too low. -- Mika Takala
thanks for the info Jason. Didn't it feel like a flat tire? Achim "jason moyer" <[email hidden]> wrote in message news:[email hidden]... > On Wed, 13 Aug 2003 19:44:05 +0200, "Joachim Trensz" > <[email hidden]> wrote: > > >I've made the mods you should make for the patch, and made theadjustments > >you try to make in for such situations, like springs, brake balance, ride > >height, weight distribution, camber, etc., so I wonder, could it be that > >those new aero-maps somehow don't work well under certain situations onthe
Quoted text (9 lines)> >RC's? > > I was under the impression that the aero maps were only changed at > restrictor plate tracks. Is it possible this is a side effect of the > new suspension geometry or the camber bug being fixed? If > throttle-off oversteer is no longer happening, I wonder if maybe the > dif model was changed... > > >Others in my league notice it as well, but only on the road circuits. On
the
Quoted text (7 lines)> >ovals things seem bright. > > I've seen similar understeer at Dover actually. I was pushing and > lifted while down at the apron and the car still drifted all the way > into the wall without giving my front tires grip. > > Jason
thanks for the tip, Mika. I have AAMOF tried higher and harder, i.e. up to 5.50 and 350 harder in the bump springs, plus one click stiffer shocks (resulting in something like 1050/6/5). I've also changed the camber and castor, well, and about everything else. I'm surprised there isn't more of an uproar about this. It feels like a pickup with lots of heavy stuff loaded. Achim "Mika Takala" <[email hidden]> wrote in message news:30H_a.14$[email hidden]...
Quoted text (11 lines)> > "Joachim Trensz" <[email hidden]> kirjoitti viestiss� > news:bhdt9m$112f2l$[email hidden]... > > I'm noticing a strange understeer in long, fast corners, usually in > > off-throttle situations, where I was used to see the car oversteer, like > > when I release the throttle. This understeer is very strong, and almost > > impossible to get out of. And, it also happens when the tires are > apparently > > not overheated (not yellow, temps around 200). > > You may be running the front of the car too low and soft; when you lift
the > throttle, front comes down and you lose downforce when it gets too low. > > -- > Mika Takala > >

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