You need diferent maps for diferent fuels (street to race and vice-versa) But same parameters as before. The combustion is better with Race fuel and a lot cleaner, there's where you got the gains.
Printable View
you have to alter the map properly to see the real advantage of the race fuel.
The gains you saw are almost nothing,probably due to not good altered map.
I think most powerful fuel for R5 now is ETS. Some other are quite close, some other are not much better than 102 pump fuel (but are more stable). If I remember correct difference between Pb98 and proper race fuel was some 7% in case of R5
I have very old (13 years old) dyno measurements from an Evo IX with 100 octane stock fuel (from that time) and 102 octane race fuel, both with the old 32 mm restrictor (gr.N rules from that time). The dyno is from one of the most well known tuners from here who at that time was also doing rallies himself. The graphs give 255 Hp/489 Nm for 100 octane stock fuel and 278 Hp/565 Nm for 102 octane race fuel. Also the torque peak for the race fuel is roughly 200 rpm lower and the power band is a bit wider.
How much fuel does a R5 drink per 10km SS, and on normal transport stages?
Will the cleaner racefuel also make the engine last longer?
The R5 engines seems to be very durable, it is nor very often you see engines breakedown on these cars, and that is impressive!
Average fuel cons of R5 is around 55l per 100km on stage (depends on car, conditions, surface, driver, etc) and 10-20l per 100km on road section (mainly depends on driver and road type).
Better fuel maybe is not influencing engine life, but with Pb98 for example sensors like EGT or lambda live much shorter than on race fuel.
Yes, they are reliable, one of main factors is low boost they're running with.
As an proper R5 car yes, but cant such a car be used under other regulations and use a different state of tune (restrictor) to produce more power ?
There were cars running in the BTRDA championship in the UK using Fiesta R5+ cars with more power than a homologated R5.
Mellors could be suggesting the same could be done to their Iriz.
Mr Prokop was out testing 4 different R5s the other day. Any reports from him after the tests, on what car he thought suited him best, and why?
Will he be taking the C3 for a test as well, or has that one been counted out?
It is always difficult to judge from drivers' words, but after Fabia/Polo/i20 test I would say he was* most happy with Polo, but the next day he seems to be even more happy with Fiesta :) After first trio he told also that still 2 manus left, so maybe C3 is also in the game.
*My opinion is based on his film-review published on Facebook.
He tested privateers cars... and then a factory one...
I am guessing all cars were set up neutral, or roughly to his preferance. Otherwise it will be hard to compare on a short test.
Video of Hyundai i20 N Rally2 test by Epic Rally Tribe
https://twitter.com/ewrcresults/stat...035161603?s=21
Tony Quinn new Fiesta Rally2
https://pbs.twimg.com/media/EnxPQXiX...jpg&name=large
Pic by Ryan Preston
Hyundai full video - driver Huttunen:
https://youtu.be/0_go9zsFOxM
Even uglier than Citroen BX?
https://bx4tc.nl/wp-content/uploads/...byJFPierre.jpg
That's the reason why I wrote one of.
BTW I accidently deleted original post, it was reaction on i20.
"In my opinion, that's one of ugliest rally cars I've ever seen."
Tanak in new i20 N Rally2
https://youtu.be/vx70zmik-vg
saw the BX in Rally Sweden in 86. Looked underpowered compared to the others. But a lot of learning from Citroen on this car.
if anyone would like one, https://suchen.mobile.de/fahrzeuge/d...0-5b1bdf582f90
The difficulties of developing a new rally car in lockdown
Hyundai's latest Rally2 machine could debut next summer - if it can get out on the roads enough during the pandemic
https://dirtfish.com/rally/the-diffi...r-in-lockdown/
WRC Wings review of the new Hyundai i20 N Rally2 https://www.wrcwings.tech/2020/12/01...2-aero-review/
Also mentioned here that VW Polo GTI R5 production is ending https://dirtfish.com/rallycross/vw-t...es-motorsport/
VW clearly dont see rallying as any way to promote their electric-car future, and I can understand that.
But WRC managed ok when they left it and rally will too. There are still plenty of R5 cars available and more new ones coming.
The Polo is still one of the top R5 cars, so I am guessing they will sell whatever they have left, and maybe build a few new ones as well.
Do you think VW would have continued the program if R5 had been chosen as new top class?
Also notice how many drivers switched away from the Polo for this year. Kajto, Veiby, Lindholm, Ciamin...
I heard that the car is pretty expensive to run and not an easy one to maintain. Only talk though, I don't know any owner personally.
Printsport got new PoloR5 last week :(
Chassis #85
https://www.ewrc-results.com/carinfo...i-r5/?car=5080
The car Oliver used in Canaries, is that one just bought by Solbergs, so number 93 or something?
edit: It is Petters car, used in GB 2019 that gor swedish plates.
Andras Hadik finishes 2020 Mikulas Rallye in the 4th position, but, what is more important, he wins this year's Hungarian Rally Championship. This title, together with Fourmaux's victory on Canary Islands, is probably the biggest achievement for Ford Fiesta Rally2 so far.
Final results of Mikulas Rallye:
https://www.ewrc-results.com/results...s-rallye-2020/
Hadik's car:
https://www.ewrc-results.com/image/563659/
PG Andersson was champion with one too.
Enrique Cruz won Canary Islands championshio too.