Aussie V8 top speeds?

I ran an online race with our DTM guys(Nascar heat mod) and I used an Aussie V8 Supercar. It was like an F1 compared to the DTM slugs, top speed was waaaay beyond what the DTM mod cars produced. What is the top speed a real Aussie V8 gets on the straights of Bathurst? (I think we need to either bump up the dtm's or tone down the Aussie-cars) thanks dave henrie

In article <J3YH8.31993$352.2571@sccrnsc02>, [email hidden] says... > I ran an online race with our DTM guys(Nascar heat mod) and I used an > Aussie V8 Supercar. It was like an F1 compared to the DTM slugs, top speed > was waaaay beyond what the DTM mod cars produced. What is the top speed a > real Aussie V8 gets on the straights of Bathurst? (I think we need to > either bump up the dtm's or tone down the Aussie-cars) I'd expect to be seeing V8 supercars around 280kph - 300kph down Conrod. Cheers, Rod.

"Rod Prince" <[email hidden]> wrote in message news:MPG.175b03c66629e530989cf9@news-server... > In article <J3YH8.31993$352.2571@sccrnsc02>, [email hidden] says... > > > I ran an online race with our DTM guys(Nascar heat mod) and I used an > > Aussie V8 Supercar. It was like an F1 compared to the DTM slugs, topspeed > > was waaaay beyond what the DTM mod cars produced. What is the top speeda > > real Aussie V8 gets on the straights of Bathurst? (I think we need to > > either bump up the dtm's or tone down the Aussie-cars) > > I'd expect to be seeing V8 supercars around 280kph - 300kph down Conrod. I believe that Glenn Seton broke 300kph in qualifying a few years ago down conrod. I think they still do about the same top speed (but I missed bathurst this so I'm not too sure). They'd easily hit 290kph David Corless

Dave Henrie wrote:

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> I ran an online race with our DTM guys(Nascar heat mod) and I used > an Aussie V8 Supercar. It was like an F1 compared to the DTM slugs, > top speed was waaaay beyond what the DTM mod cars produced. What is > the top speed a real Aussie V8 gets on the straights of Bathurst? (I > think we need to either bump up the dtm's or tone down the Aussie- > cars) thanks > dave henrie

They crack about 300 clicks in qualifying trim just before "The Chase" on Conrod Straight

"Mobsy" > > They crack about 300 clicks in qualifying trim just before "The Chase" on > Conrod Straight > Ok a short comparison: Aussie V8 Supercar 5.0L 620hp top speed approx 300+kph Trans Am V8 5.1L 640Hp top speed 290kph Winston Cup Stockcar: 5.8L 725HP top speed 323kph 2001 Dome Judd LeMans LMP 900 top trap speed 335kph. Without knowing the in/outs of the hp generation in Nascar Heat, it would 'appear' as if the Aussie V8's are using a Nascar engine with a a much lighter chassis. The speeds I got with a full tank in the Aussie car rivals that of the fastest LeMans protoypes on the chicaned Musanne(although the air restrictions on the LMP cars probably means the Aussie Supercars have more HP) dave henrie

>I'd expect to be seeing V8 supercars around 280kph - 300kph down Conrod. > >Cheers, >Rod. Yeah, they can just hit 300kph at the end of Conrod straight if they are really going well in qualifying, but in the race they're normally arounf 270 or 280 kph. On other tracks without such a long straight they usually reach around 230 to 260 kph or so. Rafe Mc

Realisticly dave, they are getting for example at Eastern Creek which is a fairly long straight away 250-260kmh. Because the bathurst straight is so long and it has 2 downhill parts to it it has a really high top speed with is about 290kmh... A bike sim, now thats what the sim racing world really needs, and not an arcade race like GP500, a GPL for motorbikes! :) Luke -=87=- "Dave Henrie" <[email hidden]> wrote in message news:J3YH8.31993$352.2571@sccrnsc02... > I ran an online race with our DTM guys(Nascar heat mod) and I used an > Aussie V8 Supercar. It was like an F1 compared to the DTM slugs, topspeed

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> was waaaay beyond what the DTM mod cars produced. What is the top speed a > real Aussie V8 gets on the straights of Bathurst? (I think we need to > either bump up the dtm's or tone down the Aussie-cars) > thanks > dave henrie > >

"Luke Phillips" <(NOSPM)[email hidden]> wrote in message news:0V6I8.180220$[email hidden]...

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> Realisticly dave, they are getting for example at Eastern Creek which is a > fairly long straight away 250-260kmh. Because the bathurst straight is so > long and it has 2 downhill parts to it it has a really high top speed with > is about 290kmh... A bike sim, now thats what the sim racing world really > needs, and not an arcade race like GP500, a GPL for motorbikes! :) > > Luke

GP500 was arcade? Blimey....seemed as tough as old nails to me!

"Dave Henrie" <[email hidden]> wrote in message news:1u_H8.32771$352.2057@sccrnsc02... > > "Mobsy" > > > They crack about 300 clicks in qualifying trim just before "The Chase"on

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> > Conrod Straight > > > > Ok a short comparison: > Aussie V8 Supercar 5.0L 620hp top speed approx 300+kph > Trans Am V8 5.1L 640Hp top speed 290kph > Winston Cup Stockcar: 5.8L 725HP top speed 323kph > 2001 Dome Judd LeMans LMP 900 top trap speed 335kph. > > Without knowing the in/outs of the hp generation in Nascar Heat, it would > 'appear' as if the Aussie V8's are using a Nascar engine with a a much > lighter chassis. The speeds I got with a full tank in the Aussie car

rivals > that of the fastest LeMans protoypes on the chicaned Musanne(although the > air restrictions on the LMP cars probably means the Aussie Supercars have > more HP) > dave henrie The aussie v8s are not a nascar engine. The crummydores run a 4980cc (308cu inch) chev small block, and the fords run a 4949cc(302cu inch) ford engine. From what I understand, nascar engines are larger (about 358 cubic inches or about 5800cc) and I vaguely remember them racing at bathurst one year and getting higher tops speeds than the aussie cars (despite the fact that they had the brake about a kilometre before them) The aussie v8s weigh either 1300 or 1350kg (I can't remember which), and the nascars weigh more like 1500kg. I doubt that the Aussie v8s have much more power than the Le-Mans cars - they are running 5L pushrod v8s, and there is only so much you can do with 1960s technology. David Corless

"David Corless" > >

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> > Ok a short comparison: > > Aussie V8 Supercar 5.0L 620hp top speed approx 300+kph > > Trans Am V8 5.1L 640Hp top speed 290kph > > Winston Cup Stockcar: 5.8L 725HP top speed 323kph > > 2001 Dome Judd LeMans LMP 900 top trap speed 335kph. > > > > Without knowing the in/outs of the hp generation in Nascar Heat, it

would > > 'appear' as if the Aussie V8's are using a Nascar engine with a a much > > lighter chassis. The speeds I got with a full tank in the Aussie car > rivals > > that of the fastest LeMans protoypes on the chicaned Musanne(althoughthe > > air restrictions on the LMP cars probably means the Aussie Supercarshave > > more HP) > > dave henrie > > The aussie v8s are not a nascar engine. The crummydores run a 4980cc(308cu > inch) chev small block, and the fords run a 4949cc(302cu inch) fordengine. > From what I understand, nascar engines are larger (about 358 cubic inchesor > about 5800cc) and I vaguely remember them racing at bathurst one year and > getting higher tops speeds than the aussie cars (despite the fact thatthey > had the brake about a kilometre before them) > The aussie v8s weigh either 1300 or 1350kg (I can't remember which), andthe

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> nascars weigh more like 1500kg. > > I doubt that the Aussie v8s have much more power than the Le-Mans cars - > they are running 5L pushrod v8s, and there is only so much you can do with > 1960s technology. > > David Corless >

Agreed, the numbers I quoted were from real-world press sites that gave either estimates or actual outputs...Thus the speed of the Aussie car is probably slightly higher than the American Trans Am even tho the TA car has more HP. I suspect the higher top end derives from the fact no Trans Am track has a straight as long as Conrod so they have optimised downforce as opposed to top speed. What I meant by saying the Aussie car had a Nascar engine was.... that IN the mod, the characterics of the speeds was such that the Aussie V8 is way to fast. I was guessing the modmakers, rather than use actuall horsepower figures, had used #'s that were very close to the original outputs that MGI used for it's simulated Stock Cars.(hence my confusing reference to Aussie cars using a Nascar motor.) I should have clarified that I meant the simulated V8 Supercars modeled in the mod were overpowered. I have emailed one of the modmakers, he said they had lots of problems getting the cars to behave and I suspect they made these compromises to acheive some degree of drivability. As far as the 60's tech being overwhelmed by modern engines...make a V8 big enough and the tiny turbos will still be humbled. I remember some 10 or 15 years ago, a magazine compared a Turbocharged Imsa car against a boxy Winston Cup car on an oval. The Cup car won. Who knows what a similar comparison today would produce, but pushrod doesn't always =slower. :) now back to my original thesis...I was hoping to convince the V8 modders to alter their physics to more closely match the real-world output, but they do not, it is their project and I won't go against their wishes. on to other topics. dave henrie

In article <cWgI8.773$[email hidden]>, phonos[@]hotmail.com says... > I doubt that the Aussie v8s have much more power than the Le-Mans cars - > they are running 5L pushrod v8s, and there is only so much you can do with > 1960s technology. That 1960's technology can still pump out the fastest accelerating passenger vehicle made by man so it can't be all that bad! Cheers, Rod.

"Rod Prince" <[email hidden]> wrote in message news:MPG.175c68cc45c9ecb5989cfe@news-server... > In article <cWgI8.773$[email hidden]>, phonos[@]hotmail.com > says... > > > I doubt that the Aussie v8s have much more power than the Le-Mans cars - > > they are running 5L pushrod v8s, and there is only so much you can dowith

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> > 1960s technology. > > That 1960's technology can still pump out the fastest accelerating > passenger vehicle made by man so it can't be all that bad! > > Cheers, > Rod.

I'm not knocking the V8 (I love it), just the fact that you can use the thing with cams and so on (Mr. Holden, I'm talking to you here). I little addition to my previous figures, I just remembered that the aussie v8s are limited to 7500 rpm, which obviously limits their power, but I guess a high revving v8 wouldn't have quite the same "thunder" that the current ones have. David

Hmm yes very. I race motorbikes professionally and i can say that it gives it away as soon as you leave the pits, you can go full lean angle on a bike at any speed in a straight line without crashing. This is not true because the gyroscopic forces of the wheel spinning etc makes the bike harder to steer the faster you go. Also the fact that at full lean angle that you can use more than 20% throttle is absolute crap too. I race Formula Xtreme/Superbike in Aus and our bikes have 165-175hp at rear wheel at weigh around 165-170kg, and attempting to do that even on my bike would be an instant hi-side. A 2stroke 500 has 190hp and weighs less than 140kg. Add in the power of the bikes feels drasticly under done. A 500 will lift the front in 4th gear even if the rider is tucked in behind the screen. The bikes handle worse than a standard street bike.... If on a real bike you were at full lean angle and got as little steering as you do in GP500 you would seriously be leaving your team. 100% lean angle is not used very often, only on a few shorter corners or long radius corners and as i said before, if you are travelling at the maximum cornering grip of the tyre just with corner speed, you can hardly touch the throttle untill you pick the bike up onto the fattest part of the tyre which is around 45degrees (such is why you visibly see riders pick the bike up on exits of corners). I could go on forever but if i was comparing it to a game with similar handling but with cars (ive been playing racing sims since indy500 days), i would say need for speed porsche unleashed or a bit less.... Luke -=87=-