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Jamexing
S2 licensed
Quote from tristancliffe :I can't say I have flatspotted the tyres on the F3 - I locked the inside front a couple of times into Druids at Brands, but it was unloaded, and easily corrected.

But when the F1 drivers flat spot their wheels, it's not the steering vibrations or change of handling that makes them pit, but the intense VISUAL vibrations. The steering won't oscillate that much (certainly not as much as nKP depicts), and the handling will only really be affected by a tendency for the same wheel to lock at the same point.

But flat spotting a wheel in real life is very very difficult. You need a hell of a lot of speed and a very long lock up, with quite a lot of load on the tyre. You don't see many F3 drivers or DTM drivers complaining of flat spots, because at that speed, or with that amount of suspension travel, and with harder tyres, it's just not that noticable... Try it in your road cars (if you want). Lock up at 100mph in a straight line and keep it FULLY locked until you come to a stop. Then drive away - I doubt you'll feel THAT much even when you get back to 100mph.

nKP is right, in some ways, to try and translate the visual vibration to steering vibration, as we can't see or feel the forces acting on us, but it's unrealistic to that extent, and I seriously doubt that any Logitech wheel, G25 or whatever, will withstand it for long. Many of us play racing sims because we CAN'T afford the cost of real racing, so why make race sims destroy hardware (needlessly) and close the gap between sim and reality?

There's one way to simulate severe flatspots realistically without destroying the hardware. One is to oscillate the steering mildly, as happens IRL. The other effect is to vibrate the visual display the driver actually sees. In essence, it's looks as if someone is vibrating the monitor, but its not since its the graphics itself that's oscillating vertically.
Jamexing
S2 licensed
Believe me, I do. This coming from a guy who drives RL cars with NO ABS.
Jamexing
S2 licensed
Quote from tristancliffe :Yup, but after spending thousands of dollars making a mirror lighter, they added a heavier engine, more kit, cup holders, and a terrible, intrusive ESP system, and made it go from the worlds best handling car (or at least top 6) to one of the worst handling front engined rear drive sports cars in one fell swoop.

And they made it uglier too.

Unfortunately Tristan, that's where modern car design and technology is heading these days.
Jamexing
S2 licensed
Quote from Nick_ll :Errrm....you guys might want to check Tire Rack...
http://www.tirerack.com/tires/ ... ear=1989&autoModClar=
OE Front: 205/55-16
OE Rear: 225/50-16

Oh and...a Conquest is a Starion.

Maybe the GX had same size front and rear, but that's not a turbo. It would be the XRG...and besides, the starion TSI was something like 197hp apparently and our XRT is 240, so I think it just makes sense with 40 more hp to have it with wider rear tires.

Excellent Point, Nick II!
Jamexing
S2 licensed
E-type aka more looks then performance. Overhyped and underdelivering, like alfas. All looks and not as much go as claimed.

Well, at least a well tuned AE86 has a serious intimidation factor against cars many times its price.
Last edited by Jamexing, .
Jamexing
S2 licensed
Staggered setups aren't THAT uncommon these days. Besides, some cars are almost impossible to drive safely without wider rears, e.g. Corvette ZO6 (500+hp!).

Anyway, although the TBO cars are heavily based on road cars, the FXO tires are definitely non-standard. It's got HUGE fenders.

Yes, the OEM Starions or RX-7s had equal sizes all 4, but no one with serious track time in mind wouldn't upgrade to wider tires than OEM ASAP. Many if not all used on racetracks have slightly staggered sets IRL anyway, so it's not unrealistic.
Jamexing
S2 licensed
I don't agree with no pitting as that might be too crippling for FXOs, which by itself is unfair too.

Road normals would reign the FXO in, not the optimal solution, but a good band-aid FTM. At least it'll stop TBO races from turning into invincible FXO affairs.
Jamexing
S2 licensed
Good point, Blowtus.

Good points too, Gimpster. Just keep the FXO as it is and tune up the other 2 cars JUST enough to maintain competitive racing.

Not trying to be repetitive, but it's been years and it's about time they fix the turbo modeliing and powerbands. These 2 things aren't eye-candy or anything that trivial, they're fundamental physics that a sim like LFS is supposed to simulate. We can only hope that Scawen has already fixed the problem in secret and waiting to surprise us with the next patch...
Last edited by Jamexing, .
Jamexing
S2 licensed
That's one way to slow them down, though we'll end up with FXO drivers complaining about such a ridiculously artificial rule. Unless road supers disappear from the FXO's tire inventory, which in itself isn't entirely fair since road normals are crap at racing temperatures. Well, at least that'll force FXO drivers to watch their front tires like RL FWD racers.

A reasonable upgrade of the RB4 and XR GTT's tires isn't TOO much to ask for, is it? While FXOs don't suffer excessive front tire wear if driven properly, the poor RB4 suffers overheated tires at all 4 corners of pushed hard enough to have any chance of catching an FXO in a straight race. Frankly, RB4 just needs a slight upgrade to remedy this, no need for ridiculous FXO sized meats. just enough to survivie full speed racing without melting its tires without resorting to 40+psi pressures. This compared with the fact that you can race the FXO at full speed without excess tire wear at only 38psi! Wow.

Something like 225/45/16 isn't ridiculously large for a road car like RB4 used on the track. I bet RL 90s Celica GT4s use 225/45/16s as an optimal upgrade size too. This is nowhere as OTT (over the top) as FXO.

Anyway, what Sp3cTr3 suggested is a great band-aid for now.
Last edited by Jamexing, .
Jamexing
S2 licensed
Why the need for fancy graphics when F9 and F10 provide much more precise lateral and longitudinal g info then those graphical wastes of space? If there's one last thing to ask for , it's a vertical g numerical display too.
Jamexing
S2 licensed
The RB4 only LOOKS like the 80's Celica GT4. It's suspension is way superior to that car. The RB4 has a great Mcpherson strut all-round suspension, whereas the 80's GT4 had decent struts up front but absolutely horrid rear trailing links that walked laterally in response to lateral forces.

At least the XR GTT is a very close copy of the Mitsubishi Starion, both appearance and suspension wise. Just hope it gets a powerband close to the RL 80's car. And I agree the that road cars should be given finite gear ratio choices, though 2-way adjustable dampers are perfectly resonable for anyone planning to drive road based cars on the track.

To be rasonable, the FXO is definitely non-standard as it's tires are HUGE and so are its massive fenders. Yes, that the OEM tire package is absolute crap, typical of toyota. Well, my friend's 191hp corolla has horrid 195/55/16s all seasons as OEM, and they struggle to contain 191 horses. Doesn't mean that such a car should be FORCED to wear those horrid boots to a track event. In fact, its optimal size is 215/45/17, something well known to those who tune it.

To level the playing field, let's just increase the RB4s tires as much as what you would realistically do for such a car. Notice that the 90's GT4 had less power but MUCH MORE top speed then the lighter RB4! As I've said, there's something very wrong with the Rb4's aero ATM. 215 to 225 shouldn't be a problem. It's not as if I'm trying to stuff FXO sized meatloafs to the RB4.
Jamexing
S2 licensed
Quote from Funnybear :+ 1,000,000.

*Dives into the nearest lake*

Great, let's kill the RB4 and XR GTT and put them out of their misery. Or we can just open a new class called the FXO class and kill this thread ASAP.
Jamexing
S2 licensed
Quote from Captain Slow :no car should be slower. its fine how it is. please. just leave it.

Just wish they make RB4 and XR GTT as good as they realistically should be. Can't believe the RB4 has such puny tires. 215/45/16s? Even my friend's Corrolla comfortably fits 215/45/17s as the optimal size and it's supposedly nowhere close to the RB4's league! Wow. I agree that the TBO class would be much more fun if FXO wasn't slowed down and that all the corrections I suggested in a previous thread of mine (Severe 4WD defeciency in LFS). We're better off fun and realism wise if the RB4 and XR GTT get the powerbands they deserve. They could use slightly better tires. For instance, the RB4 could use a decent set of 225/45/16 for starters instead of the current sorry excuses for RB4 tires. My, even my 80's Mitsubishi needs 205s to ge the most out of the chassis without chassis mods.

Since these improvements don't seem to be coming any soon, we can only dream. BTW, 240 width tires for a car like FXO is just HUMUNGOUS. The FXO's nowhere as large or heavy as a Mitsubishi Lancer Evolution, yet its tires are even WIDER than the Evo (235/45/17)! Just shows how much the developers were trying to overcompensate for FWD deficiencies.

FTM, dropping the FXo's tire size to the current RB4 size should do the trick. A quick band-aid until LFS S2 is closer to completion.
Jamexing
S2 licensed
I'm all for competitive racing of different drivetrains and engine layouts within a supposed class, but ATM I'm not entirely happy with slowing any car down too much. IRL, racing has already been strangled by too much rule making and forced mediocrity. FYI, Nascar is already regulating the number of coils, wire diameter, etc specs of their springs! Madness.

My point is, fix the problems of what makes the slow cars unrealistically slow before anything too drastic is done to slow anyone down. Anyone who's driven cars with similar power to weight ratios to XR GTT and RB4 would agree that RL equivalents of such cars are a tad faster. ATM, lets just use optional ballasts for the GTR class while narrowing the tires of the FXO to RB4 widths to level the playing field. After turbo modelling, powerbands and aero are properly done, then we can really balance the cars properly without resorting to artificial means.
Jamexing
S2 licensed
Not to mention FXO vs RB4 wheels. The RB4 wheel/tire sizes are 215/45/16 vs 240/40/16 of the FXO. No wonder the FXO corners as if it's running slicks.

That's why we need to speed up the other 2 cars a bit too, since they are just a bit too slow for what they are. But since powerbands don't seem to be getting more realistic very soon, just chop the FXO's tires down to RB4 size and grip levels for the time being. Then the FXOs would be forced to slow down just to avoid melting the front tires in 2-3 laps.
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Jamexing
S2 licensed
Actually, forged wheels used for racing are remarkably lightweight IRL and performance tires aren't THAT heavy either, though they shuld be heavier than the tires of the other 2 TBO cars.

Anyway, even if the FXO saves 5 kilos with a smaller wheel and ture package, the dominant determinant for a car's performance is its tires. Overall, it'll suffer from slower acceleration (classic FWD traction issue), lower cornering speeds (less ultimate grip), poorer braking and classic FWD front tire wear issues. A great way to bring RL FWD problems into perspective, FWD problems the FXO currently lacks. The front tire wear would certainly even things out a bit for the longer races.
Jamexing
S2 licensed
There's the proper way to do it, then there's the band aid method. Ideally, all tubo modelling and powerband issues should be solved first, then we tweak around with tire width and thus grip to keep things on line.

Or we could simply narrow the tire of the FXO slightly and maybe add just a tad more weight, but never unitil it gets too close or exceeds the weight of the other 2 TBO cars. This would be a sort of ok band aid solution until all the relevant turbo behavior and powerband issues are solved. At least we'll have some parity in the FXO class until all the vital issues with the physics are solved, allowing LFS to more realistically depict the strengths and weaknesses of each drivetrain.

As for the RB4 dominance on the rallycross stages, that's how it's supposed to be IRL anyway, so as a sim, LFS must be no different. Besides, the other 2 cars would realistically and practically have no real business running off-road anyway.

For now, I agree with Flotch's suggestion of narrowing the FXO's tires slightly to reduce the grip slightly AND introduce some front tire wear issues RL FWD cars face. It attenuates the FXO dominance issue without relying on arbritrary addition of weight.
Jamexing
S2 licensed
Actually, nothing. Both the RB4 and XR GTT could use just a few extra horses. Say 360Nm and 250hp for RB4 for starters. Since turbo modelling isn't set to improve soon as far as we can know, the least that can be done is to crank up the power and torque of the XR GTT. And improve the tires of both the RB4 and XR GTT so they actually stand a chance against the FXO at the corners.

Or, we can have a ballast system as a band aid for the current situation, but then the XR GTT and RB4 are already a bit slow for what they are. ATM, anything is better than pure FXO domination. I know how bad it looks to have passengers in all FXOs in a race, but if that is required to achieve parity, so be it. At least it'll give them SOME incentive to fix up the TBO class.
Jamexing
S2 licensed
Totally agree, Becky Rose.
Jamexing
S2 licensed
For the time being, what we should really focus on is getting all the physics right before slowing the FXO down. An overcompenstaed FWD such as the FXO is only HALF the problem. The other real half problem lies in the fact that the other 2 cars are still a bit too unrealistically slow and "piggy".

Until at least the tirbo modelling and RB4/XR GTT powerband issues are sloved, the best solution we can realistically hope for is to enforce a ballast rule on the FXO to ensure good racing. The good news is that the TBO cars cand each take 4 extra passengers, so one could simply do a series of test runs to discover the optimal ballast to use for the FXO. I reckon that FXOs should only be allowed to race with at LEAST 1 passenger ATM. It's an imperfect solution, but until the physics are all close to completion, it's the best band-aid we have.

I share your sentiments, Becky Rose and Flotch, but FTM, we could at least enforce some limited level of parity by regulating minimum ballasts for FXOs used for proper racing. BTW, nice RB4 WR, Flotch! Nice Driving.
Jamexing
S2 licensed
I agree the TBO class DEPERATELY needs balancing, though this has been mentioned countless times before. Doesn't make it less deserving of mention though.

Though if it were up to me, I'll fix the turbo modelling and RB4/XR GTT powerband issue before attempting to slow the FXO. Just to try to finalize the physics before anything drastic is done to slow the FXO. Besides, the aero in LFS is still in the oversimplified half done stage. Last time I checked, there's at least 1 sim on sale that models pitch and ride height induced aero effects. CFD is a bit too much to ask for without supercomputers, but many RL aero effects are certainly possible to model and implement to a very good approximation in REAL TIME. BTW, it's about time all cars get their own unique aero.

Point is, lets make RB4 and XR GTT as good and fast as they should be before actually slowing the FXO down. BTW, as good as the suspension modelling is, there are just 2 things left to model before it's practically as perfect as it could be: dynamic toe and solid axles

Actually there's one simple way to slow the FXO down for the sake of fair competition. Just add 1 or 2 passengers to all FXOs. Enforce the rule strictly to make sure no one experieces the "Unbeatable FXO" syndrome.
Last edited by Jamexing, .
Jamexing
S2 licensed
The best pings I get in my area number in the triple digits, with the best no better than 200. That's why anything to increase license sales in my area is VERY welcome.
Jamexing
S2 licensed
All road cars MUST retain their license plates (TBOs, XF GTi, XR GT, LX's). All dedicated race cars MUST have their license plates removed. End of story/thread.
Jamexing
S2 licensed
A 240hp dorky looking AE86 riding on the bum of your FZ50 on a twisty track. Stress.....
Jamexing
S2 licensed
The AE86 is legendary for many reasons, one being that it's a brilliant sleeper car. It's chassis, though seemingly antiquated in design, has much more handling potential than its 130hp OEM engine. With a strut tower bar, adjustable coilover 2-way adjustable dampers with matching springs and some basic structural stiffening, it could easily handle twice that. Don't ridicule the 5-link rear live axle, it's a proven design that performs remarkably well both on-road and off.

What makes its so stealthy is its low key looks. To your average guy, it looks like a dorky 80's junker. Only to be blown away by a well tuned 4AGE turbo. Like many great japanse performance cars, they are ridiculously conservative in OEM form, but spend a couple of grand and bring out their true potential. Then you'll have a dorky looking car that blows the doors of our Jaguar E-type on anything that resembles a corner. IRL, the original old E-types were dissappointments performance wise anyway. In fact, the claimed 150mph+ top speed was practically unreachable (save a LONG and STRAIGHT downhill run).

As for the S14, it's a relatively modern design and suspension wise it's no slouch. It's remarkably balanced in OEM form (close to 50/50 mass distribution). And it's relatively easy to get 320hp without mortaging your house.

It's not the OEM state that counts. It's the cars POTENTIAL that holds currency with genuine tuners (race and sports performance tuners, not ricers ).
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