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Old Jul 18, 2005 | 03:18 PM
  #91  
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Re: renault F1 video

I had heard from someone that I think its either BMW or Renault has been spinning the new 2.4 to 24k+ !!
Old Jul 18, 2005 | 08:47 PM
  #92  
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Re: renault F1 video

Jon I thought that quote of yours was just some evil $hit to say to a MFer before you put a cap in his ***? (gotta love Pulp Fiction)

24K I wouldn't be suprised to see, but I would guess that they will not see that during the race but it's definately doable when you shorten the stroke and enlarge the bore on the motors to give the same overall length as the V10s with the 600cc smaller V8's

bret
Old Aug 4, 2005 | 04:59 PM
  #93  
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Re: renault F1 video

Just wondering if you guys had seen this yet?

20,002 rpm's!!

http://www.autocar.co.uk/movies.asp
Old Aug 4, 2005 | 08:15 PM
  #94  
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Re: renault F1 video

Originally Posted by marshall93z
Just wondering if you guys had seen this yet?

20,002 rpm's!!

http://www.autocar.co.uk/movies.asp
Saw it a couple weeks ago . Interestingly, the original video had digital readout above the dials and the left most showed torque numbers. By freeze-framing, we were able to plot a torque and hp curve. Shortly thereafter Cosworth blanked out the digital numbers. Our saved copy has the numbers.

FWIW, with the new (2006) 2.4L V8 formula, 20000 won't be the top we see.
Old Aug 7, 2005 | 08:23 PM
  #95  
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Re: renault F1 video

Good job guys!
Old Feb 2, 2006 | 08:43 AM
  #96  
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Re: renault F1 video

Alright, '06 season is comin up, whos got some dirt on the new 2.4's?
Old Feb 2, 2006 | 10:18 PM
  #97  
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Re: renault F1 video

I hear 750hp is the high end... works out to around 950hp in the V10's which Toyota and Honda admitted to at the end of last year.

Funny thing is that the 3.0L V-10s started out around 700hp too, but at a max speed of 16,000rpm, that was 1995. By 1997 they were in the 750hp range and increased another 1,000rpm. Unless the F1 guys find a miracle these motors aren't going to gain the RPM per year they did in the past. With the 96mm bore rule they are still going 19,000rpm, but even Toyota head engine boss Luca Mormorini thinks it's tough to go much over that with the 96mm bore rule.

The problem they have with them is the V8 setup... it's not as naturally balanced as the V10 (two inline 5 firing order) setup, so they have tons of problems with isolating components in the car from the shaking.

Looks like Ferrari is back in the game this year though!

Bret

P.S. Good Pulp Fiction quote in the sig... now where is your Bad Motherf#$ker wallet?
Old Feb 2, 2006 | 10:34 PM
  #98  
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Re: renault F1 video

It will be interesting to see what happens. I dont think there is any way of holding down the F1 boys, every year it seems like they try to do something to knock down power, and they jump right back to the same levels. What were they making in the 80s with 2.5s and turbos, 1400-1500hp, then they go N/A and 10 years later theyre getting dang close to those levels with no boost, its quite amazing, sortof hard to fathom some of the stuff they come up with. I have a feeling within 5 years of 2.4s theyll be back up to 900+hp...I like how the FIA thought that taking it down a litre would help keep costs down...its probably going to do the opposite trying to get the power levels back up to what the cars/drivers are used to.

BTW I havent been keeping up really close with it, is Rossi going to be driving for Ferrari this year to replace Barrichello? Or is he still just behind the scenes training?

Jon

PS: I never really questioned what it meant. I thought it was just a cold-blooded thing to say to a mother****er before you popped a cap in his ***
Old Feb 3, 2006 | 12:51 AM
  #99  
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Re: renault F1 video

Nope Fellipe Massa from Sauber/Red Bull came over.... ya don't think that old Sauber/Ferrari setup had anything to do with it.

http://www.thescuderia.net/felipemassa.shtml

BTW the max bore is 98mm..... my bad.



Gotta like the old school Mclaren colors.

Bret
Old Feb 3, 2006 | 10:49 PM
  #100  
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Re: renault F1 video

Does anyone run 98mm bores right now?
Old Feb 4, 2006 | 01:25 AM
  #101  
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Re: renault F1 video

Yep... almost all of them do. 96-98mm is the range every engine guy in F1 agrees they are at. Theissen(BMW), Kiuchi(Honda), White(Renault), Marmorini(Toyota) have all said that in interviews. Puts the strokes at 1.563-1.630"... Piston G's are right at 10,500-10,700 and speed is 5200 ft/min, right around 21,000-26,000 Nm for the piston mass they run 210-250g, not as high as a cup car though at 24,000 Nm with a 400g piston.... might be a better comparison with the rod, pin and ring mass but gotta think they are all close it total Nm since the deck heights on the cup blocks are much higher compared to the strokes and they have a 525g rule and F1 doesn't.

Bret

Last edited by SStrokerAce; Feb 4, 2006 at 01:45 AM.
Old Feb 4, 2006 | 05:45 PM
  #102  
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Re: renault F1 video

Are there rules preventing electric motors from varying the aerodynamics of the cars? A few exotic street cars have spoilers that will rise under braking, but I've never noticed it on F1 cars.
Also, if that was the case, what are the odds of them coming up with something similar to powerboat racing, where they try to get air under the boat on the straights to reduce weight?
I'm kind of suprised that they have never had a speed regulator on their cars. They could limit that, but not limit power as much, and have some really mean accelerating cars.
Old Feb 4, 2006 | 06:13 PM
  #103  
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Re: renault F1 video

I think a car that accelerates to 60 well under 3 seconds qualifies as a "Mean accelerating car" already. Adjustable aerodynamic braking shouldnt be much of a concern either since they pull over a G from aero-braking alone from top speeds. Top speeds arent that impressive anyway, 180s/190s isnt all that fast, not like they have a lot of huge straights to use a top speed anyway. Formula 1 is won in the S's not the straights.

I made a boobo in my last post, the 80's cars were 1.5s not 2.5s

Last edited by jonaddis84; Feb 4, 2006 at 06:44 PM.
Old Feb 4, 2006 | 07:45 PM
  #104  
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Re: renault F1 video

Originally Posted by number77
Are there rules preventing electric motors from varying the aerodynamics of the cars? A few exotic street cars have spoilers that will rise under braking, but I've never noticed it on F1 cars.
Also, if that was the case, what are the odds of them coming up with something similar to powerboat racing, where they try to get air under the boat on the straights to reduce weight?
I'm kind of suprised that they have never had a speed regulator on their cars. They could limit that, but not limit power as much, and have some really mean accelerating cars.
Any movable aero devices are outlawed.

With 950 or so hp in a 1300 lb car they need the downforce on the straights to keep from spinning the tires almost to top speed. They are probably the quickest accelerating race cars not on a drag strip.

At 180-200 mph, aero drag gives about 2.5 gs decel without braking. That's what surprised Jeff Gordon when he drove the F1 BMW a couple of years ago.

Regulating max speed isn't the problem. They keep adding downforce which makes the car quicker in all the twisty parts, but the induced drag which is the byproduct of downforce limits the max speed. Add power, add downforce, add more power, add more downforce...and the beat goes on.

Reducing engine size this year from 3.0L to 2.4L should knock off a couple hundred horses. They've already limited bore size (and effectively rpm) but soon max rpm will be limited to 19K.
Old Feb 5, 2006 | 01:52 PM
  #105  
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Re: renault F1 video

Originally Posted by jonaddis84
I think a car that accelerates to 60 well under 3 seconds qualifies as a "Mean accelerating car" already. Adjustable aerodynamic braking shouldnt be much of a concern either since they pull over a G from aero-braking alone from top speeds. Top speeds arent that impressive anyway, 180s/190s isnt all that fast, not like they have a lot of huge straights to use a top speed anyway. Formula 1 is won in the S's not the straights.

I made a boobo in my last post, the 80's cars were 1.5s not 2.5s

Well, teams are working 24/7( literally) in the windtunnels to minimize the drag of the cars while retaining the downforce since almost all of the passing in f1 comes at the end of the straights due to one car having a higher top speed, moveable aerodynamic devices would be a HUGE advantage. In a recent exibition the BAR honda ran somewhere around 280mph(i forget exactly) on the salt flats because they took most of the wing off the car. Also, at Monza, the cars hit around 230mph last year, some even hit about 215 at the end of the straight in Indy. If anyone gets a chance to go to indy for the usgp sit at the end of the main straight during practice and to see these cars haul down from around 210 to 70 hitting the brakes at the 100 meter mark, it really is incredible. oh, and 0-100-0 in 5 seconds...



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