Technical Racing Punto 1.2 16V mk1

[mmelo]

Dear all,

In Portugal this year we will have a race competition with the Punto 1.2 16V mk1 (1993-1999). The competition rules is very restricted, doesn’t allow many changes, but nevertheless we can do some things. For instant we take all weight to have the car full equip (roll bar, seat, plexiglass without, etc) with 830 kg. For example I’m very tempting to takeoff the assistance drivingwheel, the electrical engine cooling system, etc. What you think?

What I really like to received from the forum members is some tips and discussion to improve the handling, better braking, less weight from the car.


If you can help, please do,

Regards,

MM.

 

[richie.guy]

Kerb weight is around 990kg for the sporting iirc.

I don't have experience with stripping a sporting but I've stripped mk2 punto's before.

All the interior can go.
Rear wiper, motor etc.
Sound deadening behind the dash, under the carpet and in the engine bay.
Bitumen sound deadening on the floor pan and in the engine bay.
Rear seat belt plates can be drilled out.
Lighter wheels.
Lighter wheel bolts.
Bolts can be cut down in length.
If there are no restrictions on exhaust get a lighter stainless/titanium system.
Cat's are heavy.

Brakes you will need to test what's suitable for your application.

Handling bilstein shocks with eibach dampers is a good combination.

Good tyres are essential.

 

[01goddak]

easy one space saver and tools .. arieal ..

 

[Oldschool]

Go I understand it right that the minimum weight is 830kg or can you go lower?

 

[mmelo]

The total weight with driver at finish must be >= 900 kg. The schocks, springs, exausht system will be devilery by the organization.

I pretend also to takeoff the power steering wheel, cooling engine fan, but it will be dificult to achive the 830 kg, since we have to put some weight in it (e.g. roll-bar, fire extintion, racing seat, etc).

Regards,


MM

 

[01goddak]

you could just eat lots and lot before hand then take every thing off using your own body weight to build it up perfectly!!

 

[Munkul]

dont bother removing the cooling fan, it will kill the car if you leave it idling anywhere for long.

all the sound deadening/bitumen, interior etc will probably bring the weight down by 100kgs easy

 

[mmelo]

And about set-up the suspention, toe, camber, etc...any idea?

for eaxmple it is easy to change the cambers in this car?

Regards,

MM.

 

[mmelo]

but I need to take about 200 kg! Even the windows willl be change for other in plexiglass....

 

[richie.guy]

And about set-up the suspention, toe, camber, etc...any idea?

for eaxmple it is easy to change the cambers in this car?

Regards,

MM.

Camber you can get camber adjustment bolts from H&R for -3 or +3 degrees.

Toe depends what you like, I've run 1 degree and found it good. Munkul has played more with toe than me.

but I need to take about 200 kg! Even the windows willl be change for other in plexiglass....

200kg is a lot of weight to remove considering you have to fit the cage which is 20-30kg's for a 10 point, seat (5.5kg for a light one), harness (1-2kg), extinguisher etc. I haven't done a mk1 sporting before so you will have to just see how far you get.

Lighter battery in boot, smaller tank etc. can all be done also.

 

[Munkul]

i would try to run as much camber on the front as possible for starters, and see how it handles. maybe 2.5 degrees would be a good start point if youre stiffening it all up.. The rear doesnt matter half as much (and its a lot harder to adjust) but you will get a lot of lift-off oversteer which might be a real pest.
i like the toe to be closer to 0, just slightly in (currently running 0.3 degrees toe-in), it sharpens the turn-in a bit.
I would just get everything adjustable and have a play with different settings and see what you like best.

this sounds like good fun, be sure to keep us updated on the car please

 

[Oldschool]

but I need to take about 200 kg! Even the windows willl be change for other in plexiglass....

200kg is not as much as you think. I have done it on Punto.

 

[mmelo]

Yes, offcourse. I will send photos and the results.

Regards,

MM.

 

[mmelo]

Update:

Shocks and spring: Bilstein and Einbach.

Tyres: not yet know.

Any one knows special brakes pads, good for racing?

Regards,

MM.

 

[01goddak]

EBC green stuff.. perfect for a car of that size and power .. you will not regret them !!

 

[mmelo]

And about spark plugs, any idea which ones are most suitable to be used in racing?

Regards,

MM.

 

[mmelo]

To chamber the wheelsr in both suspention is necessary to buy an especial bolt from seat, I think!

It is true? Anyone know the ref. of that bolts?

Regards,

MM.

 

[richie.guy]

The camber?

H&R Triple C Camber Bolts - 36-48mm, 10mm (pair)
Part no. - TC110
Fitment - Fiat, Lancia, Seat, Suzuki
Bracket width - 36-48mm
Screw diameter - 10mm

 

[mmelo]

Thanks. And for the rear wheels is the same?

MM.

 

[Munkul]

no. you need camber shims due to the trailing arm design. Now on the mk2 punto they are very hard to make and impossible to buy off the shelf. The mk1 has a different style of design, however, so it may be possible. You should visit puntosportsclub.com forums because they seem to know their stuff with the mk1s.