582 replies to this topic

[a9x868]

Jesus !! After reading all these pages and the schoolgirl biatching about the L34 and A9X I've come to the conclusion ur all gay ! I love Toranas ! Period. Whoo my c$@k is bigger than yours ! Blah ! Blah F ing Blah!
I'm a member of a Torana club and attend as many meetings and shows as I can. Why? Because I love to see everyone else's Torries in all their glory and enjoy just as much hearing from their owners and their love affair for their baby.
P.S who gives a dogs ball bag about the p3!

i for one would love to have an xy phase 3
sitting in the shed next to my a9x hatch
but could not agree more with all your other statements
cheers
davemc

[xu2308]

The big spoiler kit was to hide its real reason for been there, Harry was sly testing it for the Bathurst Race later in the year, he put it in the sports sedan race so the press and ford dident know what he was upto, them big spoilers were for disguise nothing else, and not for the road production car.
I guess ask Larry if u ever run into him red, he was the driver of it on open roads testing, and conrod straight was alot longer in 72 than the V8 Supercars use now, and Mark Skaife hit 300 km/h on conrod in 2006 at Bathurst on a demo lap, its on youtube

[REDA9X]

My 253 SS was a great little car and was certaily a better performer than the larger cars with the 308. It was just a 253 bored 40thou, mild cam, bigger valves, flat tops and L34 rods, standard 308 intake manifold, rochestor and VK Group A aircleaner, standard exhaust manifolds.

[REDA9X]

The big spoiler kit was to hide its real reason for been there, Harry was sly testing it for the Bathurst Race later in the year, he put it in the sports sedan race so the press and ford dident know what he was upto, them big spoilers were for disguise nothing else, and not for the road production car.
I guess ask Larry if u ever run into him red, he was the driver of it on open roads testing, and conrod straight was alot longer in 72 than the V8 Supercars use now, and Mark Skaife hit 300 km/h on conrod in 2006 at Bathurst on a demo lap, its on youtube

A V8 Supercar has 650HP, it's more aerodynamic, has more downforce, handles better, has more grip and has 6 gears to get it up to speed final ratio 1:1 and revs to 7500RPM. Diff ratio is 3.15:1 at Bathurst and yes Mark Skaife hit 300km/h, but Glenn seton was the first in a touring car to do it back in 1996. The fact is though the majority of the time they are hitting about 288km/h down Conrod under the current rules.
The XU1 V8 would have 350HP if lucky considering Harry was getting that from the race L34 on a good day, it would be lighter than the V8 Supercar, but have far less grip and would be no where near as stable at speed, 4 speed gearbox with 2.78 ratio diff, lets call it 7000RPM max and all the aerodynamics of a brick.
A9X race car in 79 with 400HP, fatter tyres so more grip, maybe a little heavier, 3.08 ratio rear 4 speed gearbox 1:1 final ratio 7000RPM absolute maximun revs and 260KM/h down Conrod.

Even with the extra length of Conrod, the car would not get up to speed anywhere near as quick as a V8 Supercar, would have to brake much earlier not to mention be unstable and you'd have to back off just before the last hump.

[TerrA LX]

Anyone who has had a Torana cruising over 200kph knows very well how light they get. Now can you say crosswind? If you watch the bonnet once your in that 200kph range you will see the trapped air lifting the front end. One of the biggest issues to get to 300kph and beyond is to find ways to increase downforce and streamline the underbelly airflow.

I had never had any problems with cruising at the 200kph range.

[xu2308]

Harry would of used the old formula of 7000 rpm in top gear and 13" wheel size and diff ratio of 2.78 etc to give him his theoretically high speed of 170 mph, then put Larry Perkins in the Car to test it on open road testing in 1972 to see if it would do it, as highways in 1972, in Australia had open speed limits, now there stories the A9X's only used the 3.08 diff ratio at the bathurst race track and not the 2.60 ratio, so no wonder its top speed was not as fast as a car with a 2.78 ratio diff

[REDA9X]

Harry would of used the old formula of 7000 rpm in top gear and 13" wheel size and diff ratio of 2.78 etc to give him his theoretically high speed of 170 mph, then put Larry Perkins in the Car to test it on open road testing in 1972 to see if it would do it, as highways in 1972, in Australia had open speed limits, now there stories the A9X's only used the 3.08 diff ratio at the bathurst race track and not the 2.60 ratio, so no wonder its top speed was not as fast as a car with a 2.78 ratio diff

Harry would have used a formula ? So what you're saying is it's a theory not fact. As I said before, rolling tyre diameter has a lot to do with your final rev's VS Speed. When I brought the arguement up a few years ago about the A9X not using the 2.60 diff at Bathurst everyone said i was wrong because Brock said thats what they used. It was holomogated with the A9X to use at Bathurst beacuse the L34's were running out of revs with the 2.78 diff, but the rear tyres rollong diameter also changed with the A9X being able to fit bigger bag tyres. Bigger rolling diameter meant being able to change the diff ratio. The 2.60 diff was tried in 1977 and found to be too tall with the new bigger tyres. Harry swapped the diff out of the promo car and it failed in the race. Bob Morris tried the 2.60 diff in practice and found it too tall, but they had the 3.08 centre in amongst their spares.
Read the story on the Bowdens running the A9X at bathurst with Brock in 2004 and again later with Dick Johnson and the diff ratio they used on each occasion.

[xu2308]

No its was fact, the car hit 7000 rpm in top gear at the Easter Bathurst in 1972, and on road tests in 1972

[REDA9X]

I still seriously have my doubts it would be anything close to 170MPH on Conrod. Where does it say it hit those speeds, sounds like Harry being a little generous with the facts to me.

[xu2308]

Hi Red
Harry says it on page 53 in issue 9 the V8 XU-1 Story (A.M.C Mag) its at the start of the page and Harry talks about it in the HDT Chevron DVD and talks about Larry Perkins road testing the V8 XU-1 Prototype at high speed road testing.
Now maybe the "H" is talking it up, or maybe not, a XU-1 with its light weight and small frontal area with a modified 308 V8
will achieve high speeds easy, i have had my V8 LJ to 6500 rpm in top gear, running a 2.75 ratio 9" diff, and it feels like its doing 150 mph or faster, so the 'H' might be correct if they did get 7000 rpm in top gear.

[REDA9X]

I was just watching Topgear and they had a Posche twin turbo 3 litre flat six and an Audi 5.2 litre Lamborgini engined R8 on that both topped out at 190MPH. A "factory stock" XU1 V8 doing 170MPH I doubt more than ever. Harry is talking it up. The thing with AMC is they research stories and do a very good job compiling the information, however (and rightly so) they interview people like Harry and put what he says into the magazine. There is no way in Hell they would every interview someone and then quote them and say nah that can't be right. Stories from people like Harry at to the article, whether the facts be right or wrong. We all remember when Brock wrote into AMC and told them the Champion car was the real 05, look how that turned out. Harry also claimed HDT only ever had 2 L34 race cars and thats not true either. Sorry but it's 40 years ago now and no ones memory is that good.

[REDA9X]

The difference is everything he put up was from 40 yers ago when the cars were new, so faded memories really don't count now do they. A bit different to trying to remember it for an article today.

[xu2308]

The Engine in the V8 LJ XU-1 was not going to be stock, Holden had a letter dated the 30/6/1972 that they were testing the currant model XU-1 with a modified V8 Engine and Brocky told me about the engine in the Pink V8 Prototype was very modified. so not stock the engine in the V8 XU-1 if released, as they had to follow the C.A.M.S Rules of 1972

[REDA9X]

Since you're quoting Harry he says the engine in the car used at Bathurst was basically stock and putting out 290HP. A far cry from a V8 Supercar with more than twice the power. Again, 290HP supposedly reving to 7000RPM pushing the XU1 V8 to 170MPH (273km/h), an A9X race car on the same length of road at 400HP at around 160MPH (260km/h) and a V8 Supercar on a lightly shorter bit of road but with 650HP reving to 7500RPM , six gears to get it up as quick as possible and able to put the power to the ground much better with 11" racing rubber doing 180mph (289km/h).
Reading Harrys story he said Larry held it at 7000RPM for around 30 miles on the way to Bathurst!! Please explain to me how 17 years later while they were still holding the Revs of the 308/304 race cars at no more than 7000RPM peak. It just doesn't add up that 17 years of technology couldn't keep up with harrys basically stock 290HP engine from 1972.