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Old 01-11-2013, 05:20 AM   #7366
EKIN
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This could be a very, very fast day for Cyril.

After settling into the dust yesterday of other riders, the "Alien" is looking to take flight.
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Old 01-11-2013, 05:21 AM   #7367
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Originally Posted by Brodovitch View Post
I dare you to say that after coming and racing the 24H race next year

Also, no, haven;t got a Traverse yet... I'll post in the Rally jacket thread when I do



I'll never admit it.
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Old 01-11-2013, 05:21 AM   #7368
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Just in time too I see...
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Old 01-11-2013, 05:23 AM   #7369
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Quote:
Originally Posted by Brodovitch View Post
for all you truck fans

That fan sounded just like the RG fan last year when he was heading down the big dune catching a little air....excited.
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Old 01-11-2013, 05:23 AM   #7370
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Originally Posted by Rockteryx View Post
for the FI discussion:
FI-Bikes are good in all conditions, especially in different altitude. But you have to take a look of the whole system. There are two different regulated fuel pressure systems: a electrically regulated and a mechanical regulated. The mechanical regulated was explained before: the pump runs 100% all the time and the not needed gas is bypassed by a mechanical ventil back into the tank. The electrical regulation happens in the ECU and you need a fuel pressure sensor (some roadbikes have these setup). So you can regulate the pump to the needed amount of gas. That will lower the stress of the pump and of the generator because you need less amps to run the bike. Another good thing is, that you don't heat the gas through the pump (that's what happens all the time with the mechanical regulator). For all of this you need a good (expensive) ECU. But this could even regulate your injection time while the fuel pressure is falling (fuel pump is slowly dying) and it is easy to check via failure management system in the Bivouac. And with the perfect fuel/air ration you need less gas. On street bikes you also have oxygen sensors, so you can trim the motor mapping to optimal mileage with minimal loss of power.
I don't know much about the rallye bikes but I doubt that there are using such systems.

For me I would install such a system with an external fuel pump (pumps in the tank are hard to change on track)...

just my 2 cents on FI vs. carburator knowing that a good carburator works very well!
As far as I know, noobody uses electrical regulation, it would be too complicated. Husqvarna runns a small fuel tank in the middle of the bike, where internal pump is. Honda for sure runs the same as stock, (unconfirmed) I cannot see why they would risk anything else when stock pumps on CRF's are near indestructible.

I spoked last year to KTM about EFI, as far as not pushed by the regulations (in 2015 will not be possible to license carburated bike in Europe) they will keep the carb. There is one protoype of good old 450 RR engine with EFI in the department, build only for testing purpose, but I doubt they will ever use it, as this 450 engine platform is dead now and only RR uses it. They know that for future smaller bike will be required and the only logical solution will be EXC platform with EFI.

But I am with you, carb works like a charm, only that bloody south American fuel gives me wrinkles every time the bikes comes back from there and I forgot to drain carb bowl before. That "liquid" can eat up all the jets, when left untouched for a few weeks.
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Old 01-11-2013, 05:26 AM   #7371
ararat
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Quote:
Originally Posted by Brodovitch View Post
for all you truck fans
you have to admit it is marvellous to see such a "light" machine fly.
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Old 01-11-2013, 05:29 AM   #7372
drgunther
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Quote:
Originally Posted by Rockteryx View Post
[...]

For me I would install such a system with an external fuel pump (pumps in the tank are hard to change on track)...

[...]
I don't think that an external pump would be a good idea since Thomas Berglund suffered from poor fuelling during the hotter stages last year because the fuel in the tanks was boiling along the outer edges of the tank. An internal pump would have the benefit of getting non-boiling fuel from within the tank.
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Old 01-11-2013, 05:30 AM   #7373
davesupreme
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Originally Posted by El Ponkin View Post
I am still laughing about the term Flatbiller, maybe the 2013 F5 trinket should be an F5 Flat Bill Word
i'm down for one!...
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Old 01-11-2013, 05:31 AM   #7374
orlando_orange
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Quote:
Originally Posted by Brodovitch View Post
for all you truck fans
that's a happy fan...
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Old 01-11-2013, 05:31 AM   #7375
640 Armageddon
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Quote:
Originally Posted by Brodovitch View Post
So, in keeping with the tradition, WP1 I reckon is about 65-70kms, how fast will they reach it?

I say 50 minutes. Come on, let's hear your predictions
I would say 1 and a half hours or 1 and fuel pump, something like that
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Old 01-11-2013, 05:35 AM   #7376
Stagehand
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Originally Posted by Vicks View Post
Question.

What's best to be worn under the armour/pressure suit to prevent chaffing by the pressure suit material ?
I wore a skin suit made by LDComfort, then a pressure suit over that, then a cordura shell over that. The shell could be vented or ditched as cooling required, but I never needed to, plus it had all the pockets. ADvantage: wear it straight into the shower after stage, soap it up, strip, stomp on it, change into the fresh ones you did that to the day before, and hang the wet onees out to dry until the next day
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Old 01-11-2013, 05:35 AM   #7377
Spark Plug
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Morning.


So after the "Fuel Stop" yesterday and knowledge of what happened last year. Do you think the smaller teams/privateers have taken note and will be keeping a close eye on where the team trucks are headed and follow to try and help their riders?
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Old 01-11-2013, 05:35 AM   #7378
orlando_orange
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Quote:
Originally Posted by 640 Armageddon View Post
I would say 1 and a half hours or 1 and fuel pump, something like that
i reckon closer to 40minutes than 50....
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Old 01-11-2013, 05:36 AM   #7379
sandhill
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Quote:
Originally Posted by EKIN View Post
Just had this emailed from a friend from the Two Wheels Blog who knows I have been following Dakar. Sorry if this is old news. He needs a flat brim hat.

Stéphane Peterhansel - living legend of the Dakar Rally with 6 wins on two wheels (all of which with Yamaha) and 4 wins in the car class - was getting a little bored while waiting for the next edition of the famous rally raid, hence he decided to go out for a spin with his Yamaha YZF-R1. The thing is, he did that in the desert.
Even though it’s been a few years since Peterhansel was the ruler of motorcycle racing on the dunes, the Frenchman obviously still has it: riding an R1 with special tyres on the sandy hills of Merzouga, Morocco, Peterhansel showed off his skills for a special issue of French magazine L’Integral, and here are a few pics documenting his performance.
It goes without saying that the desert is not the kind of habitat that the R1 designers had in mind for their baby, but with a top-notch specialist like Peterhansel on board, even the awesome road-racer from the three diapason house can make the right impression.










Wow. I wonder if they made any suspension modifications before that ride.
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Old 01-11-2013, 05:36 AM   #7380
ric678
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Dakar
Francisco Lopez started the special stage at 10.10 AM local time. 218 km lie ahead of him, on the first timed section on Argentine soil on the Dakar 2013. The first 136 km of the special stage will take place on earthen tracks before a more rocky section leading up to the finishing line.
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