Diablo issue, kinda/sorta

[demonchilde]

OK, I'm talking about the GT version.

Now, theres 3 tunes posted for it currently, and each of them has their good and bad points, but its a monster, so I expect that.
Praiano's tune is great, and the only bad point on it, isnt a bad point. Its the fact the PP of the tune isnt what I'm doing, and like the other 2 tunes, it doesn't translate when power is increased. Perfect for its PP in the build, just not for the level I'm attempting.
that said, . . . .

I'm trying to see if I can max-tune it. For use in the 750pp/RH championship's. Now, ive beaten them long time ago, its not for progress that I'm doing this. Im doing this to see if it can be done, lol.
Im talking, every upgrade possible.
Right now I'm doing great in some areas, but horrible in others. The thing even touchs a curb and its spin city.
pick up is awesome, transmission I have perfected for this power/weight/gear level.
I even toned down 1st and 2nd gears to try to eliminate torque adding to the curb spin.
I know what I would do, and ive done it already. I want to know what you guys would do.

It just might be, that its impossible to clean it up with this amount of power, but I want to know for sure before I hang it up.
anyone?

 

[DigitalBaka]

1. Get rid of the Diablo
2. Use a sane car
3. ???
4. Profit

Seriously though, if it's bumps that give you a problem my first thought would be to raise up the ride height and soften up the ARBs and possibly comp on your dampers. But I have no idea as race car tuning is a black art to me.

 

[Voodoovaj]

I found softer dampers helped in the Super Lap...try that. I had the front and rear compression set to 3 and the ARB's 3/2

 

[demonchilde]

Race car, funny you say that. Thats the problem, its NOT one. The Diablo gt500 version, which technically IS a race car, handles so much better at every PP level it matchs.
The problem is that it is more powerful then most race cars, but its built like a 500 hp modern muscle car, which doesnt handle right at 1000+ hp.

 

[Bo]

Race car, funny you say that. Thats the problem, its NOT one. The Diablo gt500 version, which technically IS a race car, handles so much better at every PP level it matchs.
The problem is that it is more powerful then most race cars, but its built like a 500 hp modern muscle car, which doesnt handle right at 1000+ hp.

That is because one is a purpose built GT500 car, and the other is literally a scary Diablo with some plywood on it.

 

[Voodoovaj]

That is because one is a purpose built GT500 car, and the other is literally a scary Diablo with some plywood on it.

Agreed, they did a good job capturing that .

@demonchilde did you raise the suspension?

 

[FussyFez]

There is a gt500 diablo?

I was under the impression that there is the road car 'diablo gt' and a race diablo, maybe gt2? Pretty sure it's not a gt500 though I could be wrong(I thought the super GT cars were Japanese only?)

Anyway back to the topic, @demonchilde , post your current setup for suspension, gearing, brakes and lsd.

Although, as mentioned above, I would raise the ride height a little, and soften off the springs and dampers just enough to suit the change in height, but I'd go harder with arb's to balance the softer springs and dampers.

Higher Inital on LSD, and lower accel, though the braking might need to go lower to counter the higher Inital (or a rearward brake bias if lsd is as low as it can go.) I tend to run my rear brakes on 10 if running with ABS, then I have the best braking rotation, and the braking lsd can go a bit higher, giving you more room to play with the Inital and accel for more stability.

Have you played with ballast? What's the stock weight distribution?

Avoid the curbs if thats the only issue.?

 

[demonchilde]

Avoiding the curbs is an issue in itself. Its a train with no rails. yeah you can slow way down and try to drive it like a grandma, but if you do that you might as well knock 450 hp off it because you will never use it. The point of this experiment is to try to get it to handle using all the power it has, and in which case it HAS to be able to nip a curb every now and then. Not 4x4 offroading, but be able to occasionally nudge up on the curbs.

My wife has TV control atm, I can post specifics on the set ups ive been trying when I get on later.

And yeah, the diablo GT500, although not called that, was the only diablo we had in GT5 thats in GT6. The one painted like a race car. If you remember right, in the gt500 seasonal in GT5, this diablo was one of the GT500-restricted choices that was considered the same class in that seasonal.
hence why I refered to it as the GT500 diablo, lol

 

[Bo]

There is a gt500 diablo?

I was under the impression that there is the road car 'diablo gt' and a race diablo, maybe gt2? Pretty sure it's not a gt500 though I could be wrong(I thought the super GT cars were Japanese only?)

The GT500 class in the early 90's was dominated by the likes of Lamborghini and Mclaren. The most notable car was the famous LARK F1. In 1995, the rules were changed in favour of a Class 1 (for FIA GT1 equivalent cars) and Class 2 (FIA GT2 equivalent). By 1996, the GT500/GT300 rules were adopted, but although the GT1 cars were still legal, the cost to run them compared to the modified Group A and early GT500 cars was ridiculous. This led to them being banned, but NOMAD (pictured above) decided to construct a GT500 Diablo. That ran until 2001, gradually changing with the rules, but was dropped in favour of a full Toyota/Nissan/Honda GT500 grid.

 

[FussyFez]

The GT500 class in the early 90's was dominated by the likes of Lamborghini and Mclaren. The most notable car was the famous LARK F1. In 1995, the rules were changed in favour of a Class 1 (for FIA GT1 equivalent cars) and Class 2 (FIA GT2 equivalent). By 1996, the GT500/GT300 rules were adopted, but although the GT1 cars were still legal, the cost to run them compared to the modified Group A and early GT500 cars was ridiculous. This led to them being banned, but NOMAD (pictured above) decided to construct a GT500 Diablo. That ran until 2001, gradually changing with the rules, but was dropped in favour of a full Toyota/Nissan/Honda GT500 grid.

Well I stand corrected. Thankyou very much.

I thought the nomad was in the same group as the lister storm etc.

So just to clarify.

Road diablo GT (premium)

Race diablo GT (premium)

Nomad diablo (standard)

And this thread is talking about the premium road car... Yes?

This one.

 

[Bo]

Well I stand corrected. Thankyou very much.

I thought the nomad was in the same group as the lister storm etc.

So just to clarify.

Road diablo GT (premium)

Race diablo GT (premium)

Nomad diablo (standard)

And this thread is talking about the premium road car... Yes?

This one.
View attachment 121720

No, the GT2. The plywoody one.

 

[FussyFez]

No, the GT2. The plywoody one.

Lol okay the race premium one then? (don't have a pic)


The OP mentioned that it's not a race car...?

I'm now thoroughly confused.

So is that not a race car?

Is it like the fxx? A monster Road car that looks like a race car?

 

[Bo]

Lol okay the race premium one then? (don't have a pic)


The OP mentioned that it's not a race car...?

I'm now thoroughly confused.

So is that not a race car?

Is it like the fxx? A monster Road car that looks like a race car?

He was saying it's not a race car because so is the GT500 and that monsters it in every way, hence why I said this:

That is because one is a purpose built GT500 car, and the other is literally a scary Diablo with some plywood on it.

 

[FussyFez]

He was saying it's not a race car because so is the GT500 and that monsters it in every way, hence why I said this:

Ok I'm getting there slowly.

The OP specifically says 'the GT version', this is what's confusing me mostly, as this implies the road car 'diablo gt', not the 'diablo gt2'

So was the gt2 built specifically to race?

(sorry, idiot mode engaged. It's a bit early for a Saturday)

 

[Bo]

By GT he means the GT2, which was a race car, but it actually didn't do much.

We have all assumed he is talking about that car, since he said "well it's not a race car" (because it gets destroyed by the GT500, even though they're basically LMPs), meaning it is a race car he is referring to.

 

[FussyFez]

By GT he means the GT2, which was a race car, but it actually didn't do much.

We have all assumed he is talking about that car, since he said "well it's not a race car" (because it gets destroyed by the GT500, even though they're basically LMPs), meaning it is a race car he is referring to.

Right. I'm with you, but I'd like clarification from the OP lol.

Cheers for trying to twist my mind through this simple misunderstanding.

 

[demonchilde]

Very sorry, lol.
Yeah, HSV is right on the money and understood me correctly. The '98 GT2.
I'm sorry I wasn't clear in the first place, the other diablo road car, I like. I got that one to get me two trophies in like the wind race three, lol.
And the one I referred to as the gt500, the NOMAD, I like also, as much as I did in GT5.

This is what led me to do this trial thing with this version of the diablo. To see if I could get some high powered use out of the third diablo as well.

Ok, that said and over with, we good FuzzyFez, lol?
I'll be on in about twenty minutes to clarify and work on this.

Ok, edit;
Stock weight dis is 42/58
Right now, after many changes (and constant changes, will be different by the time anyone posts anything, lol) this is where I am now; and testing this;

LSD 8/10/20
Height 75/80 (just raised it as advised)
Springs 17.75/30.25 (I like to use increments of 0.25)
5/5
6/5
3/3
0/0
-0.20/+0.15

 

[FussyFez]

Lol Thankyou, I do apologise for my brain fart. Thankyou for clearing it up!

I'll have a little play when I get a chance. The thing that stands out is the 30kg/mm rear springs?! What's the min and Max values available on both front and rear? Where are the blue bars in relation to eachother?

Sorry but without looking myself I can't help but think that's way too stiff. Could be wrong, some cars have very odd spring rates.

 

[demonchilde]

At the above settings, it's a little better on the edges, but still a diablo on the overkill/trouble issues.

At 142 kg @ -50, it gives it a 48/52 ratio, and the spin out is gone. However, it is too noticeable an amount of weight.
It acts and feels like a garbage truck when it's accelerating through the gears at this weight. And is about as easy to stop as one also.
So where in the middle, maybe 45/55, or 44/56.

I'm beginning to think this really is a waste of time. At most this can perform at the 600pp level, and it's great at 550pp, but at max everything it's just a lit fuse.
But I'm still trying, God knows why. . .

And FF, the ratio is 20.41 to 39.25 for rear.
30.25 is about 1/2 bar.

 

[FussyFez]

At the above settings, it's a little better on the edges, but still a diablo on the overkill/trouble issues.

At 142 kg @ -50, it gives it a 48/52 ratio, and the spin out is gone. However, it is too noticeable an amount of weight.
It acts and feels like a garbage truck when it's accelerating through the gears at this weight. And is about as easy to stop as one also.
So where in the middle, maybe 45/55, or 44/56.

I'm beginning to think this really is a waste of time. At most this can perform at the 600pp level, and it's great at 550pp, but at max everything it's just a lit fuse.
But I'm still trying, God knows why. . .

And FF, the ratio is 20.41 to 39.25 for rear.
30.25 is about 1/2 bar.

In that case I'll have to have a play. At the end of the day, some cars just demand at least a little bit of respect when using no assists, even with the most stable of setups.

 

[DolHaus]

I would probably adjust the ballast to get rid of the pendulum oversteer and then redo the suspension.
Big power cars always struggle exiting slow corners, rear weighted cars struggle exiting slow corners, big power rear biased cars... erm... you get the picture lol