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You’re correct. I’m getting old :) . For some odd reason I added the 0,5 – 0,7 to 2,5. I should have read Dimviii’s post more thoroughly.Quote:
Originally Posted by tommeke_B
The correct absolute pressure for a R4 would then be 2,8 – 3,0 bar.
I have a dim memory that Dimviii once said that a R4 have 2,2 bar boost but I’m not sure. Again, calculating with restrictor sizes a N4 with 32 mm restrictor and 2 bar gives 2,13 bar as a result for a 33 mm restrictor.
Christian Riedemann perhaps?Quote:
Originally Posted by darkstar
I've always walked away impressed when I have seen him on stages.
Admittedly, I haven't followed him much, and he seems to have slipped a bit into 'oblivion' since the two Fabia rides last year.
Regarding his prestations in Rallye du Var and Ypres this year, I don't think he will make it... ;)
riedemann is very fast in germany, but i think that only shows how bad the competition level is in germany. he´s shurely not slow(and i had some hope he wil make it in wrc academy) but on his international outings he always got beaten up. btw. gassner also is looking very, very fast when you see him live on the stages, but the times where always rather bad. but look at loeb live, one of the most boring drivers...
I see - as I said, haven't seen him a lot and it has been quite a while since last time, so doesn't exactly surprise me a lot.
And darkstar might be right - when I have seen him, it's been in Germany, that might affect him? Wikinger '12 was impressive by him for sure, by a long way the best fwd-driver and looked to be aggressive, pushing hard yet still not enough to be slowing him down. Hard to describe, it just looked like a good combination of pushing and keeping it on rails. :)
We have to define when we say boost pressure whqat we mean.Quote:
Originally Posted by OldF
Some people mean the overboost pressure,some other the ct boost pressure.
overboost is the turbo pressure we have at midrange rpm when turbo spools,ct boost pressure is when the rpms are at the higher band ie 5000-6000rpm etc.
big overboost pressure help to create more torque,while big ct pressure will help to have bigger number at peak horsepower.
example grN evos can create about 2 bar overboost,but cant ''hold'' more than 1,5-1,6 bar at high revs with restrictor.All these are not rule,but depents to external temperatures a lot.At Finland-Sweden Norway or at mediterannean winter cold rallies you can,but at summer rallies with 30+ temp is difficult.
Wrc cars now can have a 2,5 bar overboost(as the limit) and for sure can hold much more ct pressure from an N4-R4 due to less cc(1600 vs 2000) and different boost pressure hardware system.
He was setting impressive times in Ypres this year (except the problems), almost matching Aigner's R4 Subaru pace in the little DS3 R3T...Quote:
Originally Posted by darkstar
he had some fastest times in his class, but arzeno, demaerschalk and even kangur were faster then him pretty often. i dont want to say he is a bad driver. there are maybe reasons i dont know, why he was so slow in the wrc adademy(maybe founding?). and also in his outings with the vw skoda. in germany he was very impressive this year, no doubt. but i think there wont be another chance for him at vw, except he can get some international programm in 2013 and can show some very good pace.
pretty often means four or five times? Arzeno is also a very fast man, don't forget that, Demaerschalk went off heavily quite early and Kangur was driving like a maniac, I still wonder how he made it to the finish :D :D The biggest problem in the Academy are the cars...if you don't have the budget to change the "important parts" on every service, you have a problem.Quote:
Originally Posted by darkstar
Why should he look for another chance at VW? They were not even interested in Hänninen. I hope he will kick asses in the Fiesta ;)
Great photo!
http://i49.tinypic.com/2r2xe1f.jpg
vwrallytheworld
"They know every nut and bolt. The world's best mechanics are double and triple checking the Polo R WRC"
Eighteen days remaining to get into the WRC. VW's mechanics will suffer a lot this season.