TVR Cerbera Speed12.FAST CAR!!! No Grip :(

  • Thread starter Thread starter Hodg45
  • 28 comments
  • 3,115 views
H

Hodg45

Messages
7
Although the Speed 12 has won me a lot of races, its not pulling its weight on the pan european championship. When I accelerate out of the corners (any corner, any track) my speed12 doesnt regain a proper grip of the road until im hitting 130mph + . I've tuned her up, and ill post all the settings, just doing the 200 mile el capitan enduro at the mo, im using the slr mclaren - what a car. the brakes arent very good tho :(. So if anyone can help me with my speed12 that'd b great coz i love it!
 
My Current Speed12 Setup 1134BHP
258mph - top speed

Suspension

Front Rear
Spring Rate 17.0 17.0
Ride Height 54 54
Damper - -
Damper (Bounce Side) 3 3
Damper (Rebound Side) 6 6
Camber Angle 2.8 2.8
Toe Angle 0 2
Stabiliser 5 5

LSD
Initial Torque - 15
LSD Acceleration - 30
LSD Deceleration - 15

Tyres Sports/Medium Sports/Medium


Ive tried messing around with theses settings but to no avail, so if anyone can give me a few guidelines or tips as how best to set my car up, they would be much appreiciated. Thanks
 
Just a few thoughts...

Softer springs (may need to raise the ride height to stop it bottoming out), and maybe less camber (camber reduces traction, thus increasing the likelyhood of wheelspin).

Might be a good idea to drop some of the engine upgrades... excessive power leads to wheelspin, and makes you understeer in corners (too much throttle).

Are you using aids? Specifically, are you using traction control? The Speed12 is one car which really needs it.
 
My TVR Speed 12 settings are as follows

Setting
All are shown Front then Rear

Spring Rate – 12 / 10
Ride Height – 85 / 85
Damper
Bound – 3 / 3
Rebound – 4 / 4
Camber – 2.3 / 1.0
Toe – 0 / 0
Stabilisers – 3 / 3

Downforce – 10 / 25

VCD 30 / 40 / 20

Brake Balance 4 / 3

Gearbox – Auto 13


I would have to agree that your set-up looks way too stiff for a car of the Speed 12's weight and power, you will notice mine is far softer in spring rate, damper and stabiliser.

The one thing I would add however is with the Speed 12 settings will only get you so far, driving technique (particularly throttle control) will do the rest for you.

Regards

Scaff
 
Thanks guys thats really helped me out. I'm gonna play around with the settings, just waitin for B-Spec to finish this enduro - NEED Money!👍
 
Hodg45
My Current Speed12 Setup 1134BHP
258mph - top speed

Suspension

Front Rear
Spring Rate 17.0 17.0
Ride Height 54 54
Damper - -
Damper (Bounce Side) 3 3
Damper (Rebound Side) 6 6
Camber Angle 2.8 2.8
Toe Angle 0 2
Stabiliser 5 5

LSD
Initial Torque - 15
LSD Acceleration - 30
LSD Deceleration - 15

Tyres Sports/Medium Sports/Medium


Ive tried messing around with theses settings but to no avail, so if anyone can give me a few guidelines or tips as how best to set my car up, they would be much appreiciated. Thanks
Click to expand...

yer its quite hard to control the tvr to much wheel spin try putting the LSD To the max also spring rate to 9.6 front 13.2 back
worked 4 me so yer
 
spd_demon
yer its quite hard to control the tvr to much wheel spin try putting the LSD To the max yer
Click to expand...

id say that putting the LSD up will help reduce the wheelspin, its what ive used on my Trial Celica as being an FF car wen i boosted the power up to around 370bhp the wheels spun in the lower gears, obviously the Speed 12 is a very different animal in comparison but they shared a similar problem.

p.s.
Scaff
VCD 30 / 40 / 20
Click to expand...
did you mean LSD here?
 
Dark Elite
Two words that could well negate everything else that's been said...
Throttle control.

DE
Click to expand...

Scaff had that covered already.

Personally I drive my Speed 12 as she was intended - stock settings, factory ethos (no aids) and on S2s. It's a laugh a piggin' minute.
 
I'll second that, the Speed 12 completely stock on S2's is fantastic. It's just one of thoes cars that you have to learn to drive a bit differently from anything else.
 
There's always one line you miss, and it's always the most important one. :O

I always drive my Speed 12 totally stock too, and S2s suit it best. Totally mad, and as l4s says very different to any other car, but so much fun - particularly at the Nürburgring.

DE
 
The power mods are totally unnecessary, IMHO. Money spent on a supercharger could better serve in a suspension, tires, LSD, etc. This car is the poster boy for fitting YOURSELF to the car, as opposed to fitting the CAR to YOUR style. You're never going to get the car to drive the way you want, unless you drive it the way it was built. Also, half-throttle can, and often will, accelerate faster than full-throttle in the lower gears, thanks to wheelspin.

Scaff's settings suggestions are priceless, as is his advice at the end of his post.
 
An excellent summary to the posts above, very well said - I agree entirely, for once. You'll go far on these forums if you keep that up :p

+REP

EDIT - Yes, it was, Ignignoc N Err ;)

DE
 
DE: was that for me?

Everyone: I'm not sure if anyone else remembers this, and I haven't seen it posted in this thread, but the Cerbera Speed 12 comes stock with adjustable dampers. That, combined with ballast, can go a LONG way towards fixing the near-undrivability of the Speed 12 in the hands of the uninitiated.
 
spd_demon
yer its quite hard to control the tvr to much wheel spin try putting the LSD To the max also spring rate to 9.6 front 13.2 back
worked 4 me so yer
Click to expand...

I strongly recommend ignoring this piece of advice, setting the LSD to the max will effectively lock the diff, so while it will help with wheel-spin (but still not as much as descent throttle control) it will also seriously restrict the cars ability to turn. Not a good move.

Regards

Scaff
 
Sorry for bumping an old thread, but....

Scaff
My TVR Speed 12 settings are as follows

Setting
All are shown Front then Rear

Spring Rate – 12 / 10
Ride Height – 85 / 85
Damper
Bound – 3 / 3
Rebound – 4 / 4
Camber – 2.3 / 1.0
Toe – 0 / 0
Stabilisers – 3 / 3

Downforce – 10 / 25

VCD 30 / 40 / 20

Brake Balance 4 / 3

Gearbox – Auto 13
Click to expand...

Is this for a stock 12?
 
A stock Speed 12 doesn't have brake balance, wing or FC gearbox i believe. So no, i'd say :P
 
I think he was asking if the settings were intended for the 799 bhp of the stock Speed 12, opposed to the 1100+ of the supercharger.

In my opinion, though, the Speed 12 actually has too much power in its original configuration, and will not benefit from the supercharger or a tuneup. Besides, 800 bhp is enough to trounce most anything out there, aside from the pure-bred race cars.
 
I've beaten the LMP and Group C racers in my tuned Speed 12 at the Ring, left the supercharger off though, I do agree that you don't need to give it more power. It already has 850bhp with fresh oil.
 
I believe that the supercharger is unnecessary, but totally worth it. :cool: I couldn't resist adding a supercharger on it. I usually pull out better lap times with the supercharger, except on a course like motorland. NEVER BUY A LSD FOR ANY CAR. (Well that's my opinion, just like no TCS/ASM.) If you are expieriencing too many problems with traction, put TCS at one. I will attempt to make this car hit 300MPH when I can find my GT4...
 
TuneRVisioN
I believe that the supercharger is unnecessary, but totally worth it. :cool: I couldn't resist adding a supercharger on it. I usually pull out better lap times with the supercharger, except on a course like motorland. NEVER BUY A LSD FOR ANY CAR. (Well that's my opinion, just like no TCS/ASM.) If you are expieriencing too many problems with traction, put TCS at one. I will attempt to make this car hit 300MPH when I can find my GT4...
Click to expand...

The opposite may be the wiser way. An LSD, if wisely tuned (not too stiff, not too open) can minimize wheelspin, especially off curbs and bumps, while maximizing grip out of corners. TCS is the wrong way, since it hampers your accelleration. A Fwd with LSD can be a quick bugger, and even tuned to develop oversteer on throttle and lift-off oversteer. However, a Fwd with TCS is as good as a dead cat.
 
ultrabeat
Alternatively, turn to prostitution
Click to expand...
This is what happens to one's mind when one lives in Yorkshire. :D :p

Remarkably, I actually typed the second 'r' in Yorkshire as a 't' without even meaning to... And again... Subliminal messaging? :dopey: I know who else lives in Yorkshire, so now I'm going to shut up and get back on topic...

Gingiba's post makes good sense - basically, a limited-slip diff can be a hindrance when set up wrongly (or applied to a car that has reactive differentials to start with), but when done properly it is a far finer and more effective tool than traction control.

DE
 
TuneRVisioN
I believe that the supercharger is unnecessary, but totally worth it. :cool: I couldn't resist adding a supercharger on it. I usually pull out better lap times with the supercharger, except on a course like motorland. NEVER BUY A LSD FOR ANY CAR. (Well that's my opinion, just like no TCS/ASM.) If you are expieriencing too many problems with traction, put TCS at one. I will attempt to make this car hit 300MPH when I can find my GT4...
Click to expand...

I have to agree with Gingiba and DE, a well set-up LSD can totally transform a car, particularly the Speed 12. It allows the traction to be maximised rather than suppressed (as the use of TCS will do). The use of an LSD (as with almost any aspect of tuning) is one of compromise, get it wrong and it will hamper the car, but get it right and it can be one of the most significant aids to traction you can work with (after tyres of course).

DE is quite correct that certain cars will suffer if you fit an LSD (such as the Skyline GT-R), but for the majority of cars its a great addition. If you are struggling with LSD set-up take a look at my tuning guides as they may help (link in my sig).

As far as getting a Speed 12 over 300mph, its should cause you no major problems, it was the first car I managed it with and took relatively little work.

Regards

Scaff
 
I think I'll stick to my TCS at one with the Speed 12. Come on, it's a pain to use throttle control every waking moment. :banghead: But one car that can almost not be transformed with a LSD, even when all the way up, is the Mazda AZ-1. That car oversteers too much when using the same tires. And it costed alot to tune. :mad: Wasted $$. Now back to the Speed 12. I use throttle control only on turns, not accelerating. That's why I use TCS at one with this car. When you use throttle control in corners, the TCS doesn't bother you, but it helps alot when you are trying to pick up speed on a straight-away. I agree that a LSD can help, but it doesn't help in the ways I like. It stopped more drifts than TCS did. :indiff: So either way can be good, it's how you use it that counts. :)

Also don't just take LSD's into account. The 12 needs to raise the ride height. It tends to bottom out on boards like Opera Paris and Nurburgring. I would buy a hideous wing to make the Downforce at the front at 10 also, to have slightly less understeer at high speeds. I love this car because it's not just some fast car that lets you floor it every waking moment. It needs fine tuning, earlier braking points, and if you could, floor it for a little oversteer due to rear tires spinning. I noticed that this car is probably the fastest in a straight line once you get the tires to meet it's least favorite friend, GRIP. I think the burnout in this car is exaggerated though. It burned out past 200MPH. :eek:

MY LONGEST POST YET!! :) I love the Speed 12.
 
I just ran the Speed 12 in the TVR manufacturer races. I ran it with the supercharger for fun, since I thought I'd be using B-spec Bob for most of the races. But after putting a quick tune on it, it was so much fun to drive after the first race, I ran all of them.

Springs Fr 15.8 Rr 13.8
Rd. Ht. Fr 71 Rr 72
Bound Fr 6 Rr 5
Rebound Fr 10 Rr 10
Camber Fr 2.0 Rr 0.7
Toe Zero front and rear
Stabilizers Fr 5 Rr 3
Brake Fr 5 Rr 3
Downforce Fr 28 Rr 40
LSD 60 on everything
No stability control at all
Traction control can pretty much be anything you want it to be.
 

Latest Posts

Back