Long time lurker, looking for a few pointers.

  • Thread starter KingKlick
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KingKlick

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A big hello to everyone out there in the GT4 threads here on GTP. I've been a long time lurker as indicated by when I signed up with this account. I've been playing GT4/3/2 and I've learned so much as to how to tune some of the vehicles.

I have been having some issues with certain cars in the game however.

First, I've discovered that the '64 Ginetta G4 has an incredible power-to-weight ratio. With all the upgrades, I believe it's in the 1.7/1.8 kg/hp range. The issue is that I can't seem to tune out the obvious oversteer in the vehicle. So far, I've managed to use toe and camber settings to make the chassis more predictable when going into a corner and oversteering, essentially turning it into a drift car. I'd love to see if anyone out there has a suspension tune that can yield some high grip numbers while minimizing this cars oversteering properties.
*** I believe ballast may play a significant role in the tune.***

The other car I've been tuning is the RUF CTR2. I've yielded some incredible lap times with this car, but I believe there is still room for improvement. On "Autumn Ring" I was able to bring the lap time down 7-seconds. My tune looks like this:

Oil change,
weight reduction up to stage 3,
variable ratio transmission,
1-way differential,
race suspension,
Racing brakes,
Brake bias controller,
Sports-medium tires (A low-grip tire proves to be a good tool for tuning)
(544hp 12xx something kg's)

After installing the above items, I was running a consistant yet pathetic 1:32 on "Autumn Ring." The 1-way differential proved very effective on this understeering 4WD car, regardless of the fact that it was designed for FWD vehicles. After tuning the vehicle, my best time was in the low 1:25's (Can't remember exactly - At work) - These times shouldn't be used as a benchmark, but more an idea of how much better I've been able to make the vehicle regardless of other variables such as gear ratios, ballast, and brake bias.

(From F - R)
Spring rate - 8.0kg - 11.5kg
Ride height - 90mm - 90mm
Bound - 6 - 8
Rebound - 8 - 10
Camber - 2.0 1.0
Toe - (non)
Stabilizers - 3 - 5

- How can I improve on this vehicle? I'd like to create more oversteer during the apex if possible, an overall improvement in cornering grip, and faster turn-in. I also believe like the Ginetta, ballast will play a significant roll in making this a fast cornering car. If need be, replacing the differential may also yield better results.

Any suggestions? I know this is a lot, but I'm sure some GT4 junkies out there know exactly what I'm talking about.

Thanks in advance!
 
KingKlick
- How can I improve on this vehicle? I'd like to create more oversteer during the apex if possible, an overall improvement in cornering grip, and faster turn-in. !
Click to expand...

Faster turn in: front toe out
Oversteer: rear toe out:tup:
 
Give it a bit more HP. I've gotten mine up to 940HP without losing it's good handling traits. This puts it in the low 1min lap times. Also take dennisw's advice and fiddle around with the toe settings to find a happy medium. My tune will be posted in my tune shop(mine/LancerEvo7GSR's) which is opening on sunday although the tune won't me up there for a couple more weeks. If you really want I can post it here or PM it to you.
Cougar23 :)
 
Cougar23
Give it a bit more HP. I've gotten mine up to 940HP without losing it's good handling traits. This puts it in the low 1min lap times. Also take dennisw's advice and fiddle around with the toe settings to find a happy medium. My tune will be posted in my tune shop(mine/LancerEvo7GSR's) which is opening on sunday although the tune won't me up there for a couple more weeks. If you really want I can post it here or PM it to you.
Cougar23 :)
Click to expand...


940hp is soo overdone 👎
i allmost never go over 470hp:tup: on a trackcar, power is nothing without control tho:ouch:.
:)
 
The Ginetta's problem mainly comes from it's shortish wheelbase. It makes it very twitchy when cornering, almost to the point you're sideways at the 'Ring around the high speed left at 240km/h+. Ballast would play a part, but only a small amount would be needed with a rear bias. Try 50kg, and have a play with your distribution from +50 all the way to -50 and see what works for you. 👍

As for the CTR2, it's a pain to tune....period. For most of us who use fully customisable settings on all our parts (suspension, gearbox & LSD), it's been a pain to dial out the understeer more than anything. Your suspension settings seem about right, but unlike dennisw, you will want positive toe angle (toe in) on the front for better turn in, not negative toe angle (toe out). He is correct on the rear, toe out will provide some more twitchyness and oversteer, but it's better done in conjunction with the stabilisers and dampers. :cool:
 
That's the thing though; I can control it. It is a very easy to drive car and the power is everywhere you want it to be. It accelerates very smoothly and doesn't top out too quickly. I guess it's up to personal choice but I don't have set limits on how much/little HP I have to have in a car. :)
Listen to what mafia_boy has to say as well. GME would have to be one of the bigger tuner garages in GTPlanet so i'm sure he knows alot more about tuning cars than most people. :):)
 
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mafia_boy
but unlike dennisw, you will want positive toe angle (toe in) on the front for better turn in,
Click to expand...

I have to correct you there, toe-in improves straight-line stability,
toe-out for faster turn in, less stable on the straight 👍
 
I'm sticking to my guns on this one dennis. Toe in (on the front) improves the turn in into AND through the corner.
 
i got a bigger gun 👍:

from: http://www.ozebiz.com.au/racetech/theory/align.html

Read the last line very good:
If the car is set up with toe-out, however, the front wheels are aligned so that slight disturbances cause the wheel pair to assume rolling directions that do describe a turn. Any minute steering angle beyond the perfectly centered position will cause the inner wheel to steer in a tighter turn radius than the outer wheel. Thus, the car will always be trying to enter a turn, rather than maintaining a straight line of travel. So it's clear that toe-out encourages the initiation of a turn, while toe-in discourages it.
 
Your gun is a water pistol compared to this cannon of mine. :cool:

From Scaff's tuning guide:

Real Vs GT4
Tuning in GT4 is not the same as tuning in the real world, a number of distinct differences can be seen between what is real and what is simulated in GT4.
Click to expand...

Front Toe Settings
Setting: Front Toe-in (- values)

Positives:
* Better straight-line stability.
* Increases grip slightly during cornering.

Negatives:
* Reduces grip on initial turn-in.

Setting: Front Toe-out (+ values)

Positives:
* Increases grip on initial turn-in.

Negatives:
* Car wanders more at high speed (reduced straight-line stability).
* Reduces grip slightly during cornering
Click to expand...

What that means for me is that if I get the better/faster turn-in, the pace might wash off slightly, but will still be faster overall than a car that goes in slow and holds it's pace.
 
mine is a super soaker:

(everything in red is done by me)

Setting: Front Toe-out (+ values) this down here are the positive and nagative things about toe-out... maybe you have read it wrong??
Positives:(positive effects of toe-out)
* Increases grip on initial turn-in.

Negatives:(negative effects of toe-out)
* Car wanders more at high speed (reduced straight-line stability).
* Reduces grip slightly during cornering
 
I'm working on Revision 3 of the CTR2. Actually got the thing to oversteer a little, without using toe.

Made it better on tracks like GVS (I ran a 1:58 there), but it's more of a handfull on the 'Ring. (where revision 1 & 2 were tuned mostly, but people complained)
 
dennisw
mine is a super soaker:

(everything in red is done by me)

Setting: Front Toe-out (+ values) this down here are the positive and nagative things about toe-out... maybe you have read it wrong??
Positives:(positive effects of toe-out)
* Increases grip on initial turn-in.

Negatives:(negative effects of toe-out)
* Car wanders more at high speed (reduced straight-line stability).
* Reduces grip slightly during cornering
Click to expand...

Why did you just requote what I have already said and type in red font next to it?? :odd: I KNOW what I'm talking about on this issue. I even bolded the point about the superior turn-in because with the higher turn-in speed, you can hold a higher speed through the corner (even with speed washing off) than you can with a car that has a lower speed but maintains that speed.

And all those things are from Scaff's guide.....if you have any problem with it, tell him. ;)
 
mafia_boy
I even bolded the point about the superior turn-in because with the higher turn-in speed, you can hold a higher speed through the corner (even with speed washing off) than you can with a car that has a lower speed but maintains that speed.

;)
Click to expand...

You are talking about toe-out right???
 
Yeah I am. 👍 (The + factor!) For me, EVERY car at GME gets some form of toe out on the front for the pure speed factor of being able to go into corners a lot faster than I would with toe in. As for being unstable at high speeds like it indicates, that's only if you keep trying to keep adjusting (tapping D-button) the car along the straight and it overcorrects and might send you a bit further across than it should. Le Sarthe is a perfect example of it, the bumps along the Mulsanne straight keep pitching cars with toe-out left and right all over the track and a lot of D-button tapping is needed to keep it on that straight line.
 
Let's just say I mixed myself up, I always call toe-in the postitive and toe-out the negative, which is what it NORMALLY is. Gotta love GT4 being backwards at times. :P

No I won't admit I was wrong. :lol:
 
mafia_boy
Let's just say I mixed myself up, I always call toe-in the postitive and toe-out the negative, which is what it NORMALLY is. Gotta love GT4 being backwards at times. :P

No I won't admit I was wrong. :lol:
Click to expand...

Ok, you wasn't wrong :lol:, but mixed, and i was right 👍
:cheers:
 
mafia_boy and dennisw = the two old men from the muppets :lol:

rottentomatoes_big.jpg
 
:lol: Need I quote myself again?

Anyway...back to the original question - there is dipute how GT does it and how real life does it - there is (as I remember) a blurb scrolling across the bottom of the tune page that tells you what is what and what it does. I'd use that over anything else. As for other ways apart from toe angle? I have no idea.
 

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