Technical 500 Abarth Gearbox

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Technical 500 Abarth Gearbox

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forevertom

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Does anyone know why the Abarth has a five speed box?

Seems a little odd as I thought it would have the six speed. Won't this make it rev really highly on motorway runs etc?

Cheers.
 
Ahh cool.

Thinking that it will be the car to replace my Panda but as I do a lot of mortorway driving I wouldnt wanna be sat at 70 doing 4000 odd rpm.
 
I read somewhere that the 6 speed box doesn't have the torque capabilities required to run with that engine, especially in SS spec, as it is esentially the older 5 speed box with extra ratio on end from the FIRE engined cars which didn't have anything more than 99bhp 96lb ft, so asking it to transfer over 200lb ft in SS spec Punto is asking a lot of it. Even the box casing is same except for the longer bolt on end section to accomodate the 6th gear. Having fitted one to a Seicento with 1.4 16v engine have had the 5 and 6 speed boxes sat next to each other its remarkable how little was actually changed from the box fitted to the 60lb ft cento box, very clever TBH, must have made for very little in terms of research and development making huge cost savings.

So it uses an Alfa box, which makes you think why did they not fit the Alfa Q2 diff as its silly cheap to buy from Alfa even as an after market item and could have make the car even better.

Though as the car has fully integrated Bosch management system which work everything from ABS, to stability control, Air-bags, to even the headlamps maybe having a mechanical diff would have meant longer development time trying to integrate it with the Bosch system.

Once car is actually out there in public domain and people start to play with them more becomes apparent.
 
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Why not run the 6 speed out of the GP Abarth, that should be able to handle the torque (it can handle 272Nm of the GP Abarth SS). Are physical dimension of that box a problem in the 500?

Troy.
 
Ive got a beefy 6 speed in my 1.4:) fits OK but ruins the turning circle.
Errr no that 6 speed box probably wouldn't be able to handle the torque of the turbo engine and still achieve the longevity you'd expect. Plus as I pointed out you lose efficiency from every extra gear in the gearbox plus you don't need so many gears if you have more torque.
 
True, its not handling the torque from my engine that well, has a little crunch from 2nd to 3rd.
Case in point :) Add some more torque to the mix and I'm sure your gearbox would soon sound like it's filled with gravel rather than gears and oil :)
 
The six speed can't handle the torque. Also, it's more fun to have wallop rather than revs, and the bonus is a decent turning circle. Win win.
 
A few issues with the six speed if it can't handle the torque from such a tiny engine. Not sure either about the car not needing another gear because of the masses of torque. A Dodge Viper still needs six gears despite having what? about four times the Abarths torque?
I imagine it's just to keep weight down.
 
The Assetto Corse model has a 6 speed gearbox, so I guess if they really wanted to fit one to the standard model, they could have.
 
A few issues with the six speed if it can't handle the torque from such a tiny engine. Not sure either about the car not needing another gear because of the masses of torque. A Dodge Viper still needs six gears despite having what? about four times the Abarths torque?
I imagine it's just to keep weight down.

Nice bit of misinformation there :) The thing about torque is not just how much there is but where it is in the rev range. The Peugeot 306 Maxi has a 7 speed gearbox because it's powerband was rather narrow and to keep it in it's powerband you needed an ultra close ratio 7 speed. In comparison a World Rally Car has a 2l turbo engine and a 5 speed gearbox generally. Peugeot even used a 4 speed gearbox in the 307 WRC because it had so much torque and Marcus Gronholm famously lost 4th gear and still won a stage in Finland saying "Tell Corrado 3 gears is enough!" (he'd complained a lot about the car not having a 5 speed box a that season)
 
Bigger turbo = narrower power band = need for 6 speed.

End of story!

It proves that one can be fitted though.

Personally, I don't understand why they didn't give the 500 and 500 esseesse the same specs as the GP versions. The price for the 500 has just been released and it is the same as the GP at £13.5K. The assetto corse proves what could be done and most of what that car has could be applied to a road car if they really wanted to.
 
It proves that one can be fitted though.

Personally, I don't understand why they didn't give the 500 and 500 esseesse the same specs as the GP versions. The price for the 500 has just been released and it is the same as the GP at £13.5K. The assetto corse proves what could be done and most of what that car has could be applied to a road car if they really wanted to.

Yes but the 500 is a totally different platform and being a smaller car having a bigger gearbox will bring with it problems. I can tell you for sure that the Assetto Corse will be a total pig to drive every day and try to park at the supermarket or in a tight spot. The boggo 500 Abarth should be a car you can live with quite easily plus it's already quite expensive for what it is so why go adding an extra cog for very little benefit when the car will be driveable with a 5 speed. I've read a few reviews of the Abarth and no one seems to say it needs another cog.

I just don't get why people think more is automatically better.
Lets sum up the +'s and -'s of a 6 speed

+'s
-You can brag that your car has a 6 speed gearbox when most cars only have 5 speed boxes

-'s
- Less MPG
- Less performance
- You'll be changing gear more often
- Your car will have the turning circle of an aircraft carrier
- More CO2 emissions so you'll possibly be in a higher tax band
- More to go wrong with the box


Seriously.... if you have the torque band to use a 5 speed then a 6 speed only slows you down or gives you other issues.
 
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