Tuning MR cars with too much oversteer

[St.Mackenzies]

Hey all,

I've been tuning an MR2 GTS lately (422hp, 1187kg)
I got a FC suspension and I tried badly to fine tune it to have the best grip on bumpy tracks (such as Grand Valley Speedway), but at that uphill after the first right-hander, I can't even get close to good handling.

The back is just way too loose at high speeds! A little oversteer here and there is bearable but high speed cornering is next to impossible with this car!

Anyone could help with suspension settings? I tried all the possible combinations I knew of.

HELP!

Edit : this also happens with a fully-tuned NSX but I managed to tame the back with a gigantic spoiler (ugly IMO), which I don't want to do with the MR2...

 

[JackWilson]

I'm sure theres a few setups available in the forum, or have a look in the thread named Every GTPlanet Tune That Exists Is In This Thread!!!

3rd one down from the top.

Thanks.

 

[SolidSnake7735]

what tires are you using?

 

[St.Mackenzies]

@Jackthalad : unfortunately MR, MR2 and MR-2 seem to be too short for the search engine. I'll have a look at that thread just now.
@SolidSnake7735 : Sports Soft. I'm trying to get the best tune without having to get Racing tires... if that's possible at all.

 

[esoxhntr]

if it's on corner exit, soften rear compression dampers/front extension.

if it's on corner entry, stiffen rear extension/front compression and add a touch of decel LSD

general oversteer cures: soften rear springs/stiffen front, run more negative camber in the rear than front. more positive (in the game) toe in the rear. go easier on the throttle.

don't go too low on ride height.

as a last resort, move some ballast to the front.

the mr2 is one of my favourite (and fastest) cars in the game but it is tricky to drive and tune and I too reuse to put wings on my cars. 99% of my racing is done on nurb, so it's definately a bumpy track. you can tune the oversteer out but at the same time you will neuter the car so it's a fine line.. that fine line (a quick car) is difficult to drive.

 

[seanneedscar]

if it's on corner exit, soften rear compression dampers/front extension.

general oversteer cures: soften rear springs/stiffen front, run more negative camber in the rear than front. more positive (in the game) toe in the rear.

don't go too low on ride height.

as a last resort, move some ballast to the front.

the mr2 is one of my favourite (and fastest) cars in the game but it is tricky to drive and tune. 99% of my racing is done on nurb, so it's definately a bumpy track. you can tune the oversteer out but at the same time you will neuter the car so it's a fine line.. that fine line (a quick car) is difficult to drive.

I really wouldnt ballast it. MR2's and MR-S have damn perfect weight distribution. about 45/55 which is perfect for MR

Obviously your problem is the sport tires. But if you absolutely must use them, add a rear wing and max the downforce. But i agree with your suspension settings. nice and soft in the rear, and i wouldnt lower the rear much at all

The main thing is the LSD. i'm not very confident in my LSD abilities but you need to turn that sucker down a bit.

 

[esoxhntr]

i think the SW20 MR2s start with 42/58 weight distribution. Nothing wrong with sport tires, just gotta tune the suspension a little softer than race tires

 

[JackWilson]

Installing the rigidity improvement, and increasing the rear toe to around 0.30 is an easy option.

Also decrease the settings for rear compression and increase it for extension.

 

[Mike Rotch]

Obviously your problem is the sport tires. .

Not sure how this is a problem.

Another easy tuning option is to reduce the standard rear toe settings to 0.0 from 0.2. Remember to change one thing at a time to isolate the most effective tuning option, and then go from there.

 

[St.Mackenzies]

Thanks for the answers guys. I really appreciate the help and will try what you posted. However in the meantime I took the car to Monza in order to try a flat track. I didn't change the settings at all from what they were (i-e softer/lower back and stiffer/higher front). To my biggest surprise, the car was amazing to drive, even on the last right-hander at almost full throttle. The oversteer was almost not there except for curve-exit at 2nd gear and full throttle (even then it wasn't as crazy as on Grand Valley Speedway). This gives me hope that it's possible to tune it properly!

as a last resort, move some ballast to the front.

Thanks! Will try your settings. But isn't the ballast suppose to go to the back to avoid oversteer? Or is there something I totally don't understand...

Obviously your problem is the sport tires. But if you absolutely must use them, add a rear wing and max the downforce.
The main thing is the LSD. i'm not very confident in my LSD abilities but you need to turn that sucker down a bit.

For some reason, with the amount of oversteer I'm seeing on that particular track, I doubt the tires will be the solution, but I'm willing to give them a try.

Not sure how this is a problem.

Another easy tuning option is to reduce the standard rear toe settings to 0.0 from 0.2. Remember to change one thing at a time to isolate the most effective tuning option, and then go from there.

Never played too much with toe, but I'll try it, thanks.

 

[Sabotur]

I tried my MR2 on Grand Valley and got the same problem right on the hill the track seems like its made of ice.

What I did was keep the setup I use generally for that car but max out the anti-roll bars to 7/7. It seems to work for some reason - but I also have a good amount of camber on the tyres, especially the rears to help get more grip on corners.

I dont have the GTS but I have the older Supercharged MR2 - you could try these settings but they could be way off especially since your car has alot more bhp and will handle differently on Sports Tyres - I run mine on Comfort Softs.

-25/-25
12.5/14.0
7/7
6/6
7/7

1.2/2.4
-(minus)0.25
+0.05

As others have said above - you will need to play around with the extension and compression settings.

 

[Dotini]

Do you have LSD installed?

What are the settings?

Does your car oversteer on throttle lift-off, or when on-throttle?

Respectfully,
Steve