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Thread: S2000 Database
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22nd February 2009, 20:54 #11
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Originally Posted by eppel
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23rd February 2009, 08:59 #12
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Originally Posted by Barreis
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20th March 2009, 07:07 #13
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Originally Posted by Sulland
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16th June 2009, 18:45 #14
Can someone tell me if there are two versions of the Sadev gearbox? By the S2000database some cars with the Sadev gearbox have a centre differential (Abarth, Toyota, VW, Ford = front, rear and centre diff) but Pug only front and rear diff. This has been discussed sometimes earlier but I’m just wondering why Pug doesn’t use the centre diff because it makes the car more difficult in turns when at least one front and one rear wheel are always spinning at the same speed. I can’t be because of weight saving because by the S2000 regulations the gearbox has a min. weight.
“Don’t eat the yellow snow” Frank Zappa
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16th June 2009, 19:13 #15
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I have discussed this with my friend whose family runs Abarth some time a go and he told me that the main reason in his opinion was lower power losses while the variant with central differential was not that much better in handling (every gear means 1-2% of lost power). The weight saving is now not much important since S2000 must have 1200 kg now and all of them are lighter.
I also asked if gearboxes are same for Abarth and Peugeots and he told me that it wasn't possible to fit gearbox from Peugeot into Abarth and vice versa although inside they are almost same.
As fas as I know Škoda was testing both variants and decided for 2 differential scheme which was better. Škoda uses X-Trac and they also have both variants (I think that at least MG has 3 differentials). Abarth also started using X-Trac with only 2 differentials in 09 evolution (I think that Basso made it's international premiere in Monte Carlo while Scandola used it already in autumn in some local Italian event).Stupid is as stupid does. Forrest Gump
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17th June 2009, 19:15 #16Originally Posted by 'Mirek Fric [Cze
It seems that lack of centre diff don’t have so great impact on the handling that I thought it would have.
I calculated from a dyno graph (Mitsubishi Evo 9, grp N) that the power loss in transmission is about 16%. Peak power from the engine = 202,7 kW = 276 hp, peak power from the wheels = 170 kW = 231 hp => power loss = 32 kW = 43,5 hp, which is quite a lot.“Don’t eat the yellow snow” Frank Zappa
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17th June 2009, 19:26 #17
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I think that with that much higher rpm the losses may be even bigger in percentage.
Stupid is as stupid does. Forrest Gump
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22nd June 2009, 10:24 #18
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http://www.s2000rally.com/index.php
GREAT SITE!!!
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3rd September 2009, 11:52 #19
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MG Project
Is the MG S2000 project dead, or is MSD working both MG and Opel these days?
If I look at the activity on the MG's in 2009, not many rallies has been done, thats why I ask.
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11th September 2009, 15:55 #20
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Originally Posted by Abarth
"Pavlos Athanassoulas, the event director of the Acropolis Rally Greece, told Cosmote TV in an interview that all three manufacturers agreed that the current classification period should be respected...
WRC main class in 2025