Gibson Gtr

[phunky_monkey]

It doesn't really matter what's going around the track cause it's all entertaining Even the sound of an Alfa GTV climbing out of a corner with it's carby throat's wide open or the thump of the ol XD....... Sweet !

IMHO, these are race "CARS" ! Unlike those things that "look" like cars that race now days

I'm with ya mate!

I went to my first historics at Sandown last year, and it was a top experience. Sensory overload!

[Gts-t]

Light years difference in the cages and the way the suspension is set up...they spend scary amounts on shocks these days.

So Terry has fixed the ol RB20? Be good to see the cars out running around...is there a chance that both Sydney R31s will be coming down?

Ok so the cages are different but surely quality of cages these days cant make the car that much more ridgid.

Going by the smack that everyone is talking in here, u could put a 2000 onwards cage and shocks in a gtr and hose the gibson car.

somehow i dont think so...

[Roy]

Ok so the cages are different but surely quality of cages these days cant make the car that much more ridgid.

Going by the smack that everyone is talking in here, u could put a 2000 onwards cage and shocks in a gtr and hose the gibson car.

somehow i dont think so...

You would hose it the Gibson car. Remember back then you had Yoko fighting Bridgestone fighting Dunlop. So tyre development was helping the cars. These days with control tyres you are not going to get the tyre development.

Imagine a GTR with stiffer chassis so they can tune the better shocks to hold the road better and get more out of tyres that are much better then what they ran on in the day (Assuming the tyre design is suitable for the car)

On top of that you now have turbo technology that would allow them to run higher boost without bearing failure (should the rules permit more boost) and at a minumum more effecient turbos and ECUs.

I think there would be a few things that would add up to meaning that if you built a Grp A GTR today with what current practices and technologies they would be quicker.

Think about it, they only have to be half a second per lap quicker to win by 20seconds in a typical race...thats a killing

...and do we know for sure about the 3 R31s? I will confirm this weekend if the Vic car is to be run. I cant see him running it if he hasnt given a shakedown at Calder.

[dontfeelcold]

Mainly interested in seeing the layout of the car. The engine ebay looks very "clutter free" when I look into the engine bay of my GTR now, its cramped.

[Gts-t]

You would hose it the Gibson car. Remember back then you had Yoko fighting Bridgestone fighting Dunlop. So tyre development was helping the cars. These days with control tyres you are nto goignto get the tyre development.

Imagine a GTR with stiffer chassis so theey can tune the better shock to hold the road better and get more out of tyres that are much better then what they ran on in the day (Assumign the tyre design is suitable for the car)

On top of that you now have turbo technology that would allow them to run higher boost without bearing failure (shoudl the rules permit more boost) and at a minumum more effecient turbos and ECUs.

I think there would be a few things that would add up to meaning that if you built a Grp A GTR today with what current practices and technology are availabel they would be quicker.

Think about it, they only have to be half a second per lap quicker to win by 20seconds in a typical race...thats a killing

...and do we know for sure about the 3 R31s? I will confirm this weekend if the Vic car is to be run. I cant see him running it if he hasnt given a shakedown at Calder.

Cheers Roy,

going by these comments and others in the thread it seems as though u could make a gtr these days with the same peak power because everything else would be so much better u could put non slick tyres on it and still be faster

Now that would be cool.

[Roy]

I think a lot of the GTRs getting around Vic have similar power to the Winfield car. Difference is in the fact that they still typically run performance street suspension, not competition suspension and the weights and chassis rigidity of the cars are not as good.

And no disrespect to the owners but i think they will all concede they are 1-2 seconds off what a professional driver would get out of the cars.

That all said there are GTRs doing 1:18-19s at Sandown on road rubber and full weight and 1:30 flat at Winton and 1:42s at PI. So they are BS quick considering

[justinfox]

Are the Group-A GT-Rs like 1200kg? Or something like that. Under 1300kg's if I remember reading somewhere.

That's impressive. The Z-Tune, with all that carbon is still 1600kgs! That's damn heavy aye?

[Sydneykid]

I assume you guys have all seen the pictures I posted of the Gibson R32GTR's in this thread

http://www.skylinesaustralia.com/forums/in...4&hl=Gibson

cheers

[TokyoTaxi]

SK, they are nice pics, but you'd have to admit, there's nothing like seeing it in the flesh

I've spent so much time just looking over this car, admiring the craftsmanship and attention to detail. And as good as it is from the top, the underside is just as amazing ( which I think you've seen from memory ? ). It's funny though, how many people rock up and say it's much smaller than they expected

2630GTS, you have to remember what this car was built for and what was available / allowed at the time. I would LOVE to see what Fred Gibson & his crew would build with today's parts ( and a full Nissan factory budget ). Could you imagine his take on the R34 for an attack on Bathurst

Roy, I'll talk to Terry today and confirm the Sydney cars.

[PHaT MR30]

I heard that when a a V8 supercar is built the test how much twist the chassis has by using XX amount of force to make a 1 degree twist, after 12 months it is tested again and surpirsingly it takes something like 1/3 less force to make that 1 degree change.

Hence a 15-16 y/o care probably has a HEAP less rigidity.

im no expert on the situation, thats just what I was told by a guy who would know.

None the less I love the old Gibson GTRs and they will always be a favorite car to me.

[88silhouette]

scotty no doubt you've seen this bout the gibbo cars too

[justinfox]

http://www.skylinesaustralia.com/forums/in...st&id=41005

OMG that interior is so hot. I LOVE a race car interior!!!

[justinfox]

Damn nice pics SK. Cheers for them, so inspiration, how about these rear brake ducts hey?

Nice.

[TokyoTaxi]

I love all the pumps & coolers underneath too.

Oh, and whats not to love about race spec suspension

[Dale FZ1]

I went to my first historics at Sandown last year, and it was a top experience. Sensory overload!

I used to go and watch them when they were cutting edge touring cars, not historics. And yeah, it was a spectacle.

Quite a sight to see a Volvo 240GT two wheeling around the esses at Surfers Paradise

Great to see an M3 take the GTR under brakes into Hungry Corner at Lakeside

A bit deflating to see the relatively underpowered but pretty HR31 get belted by Sierra RS500s. There was only ever a max (that I can recall 3 HR31s running - two Peter Jackson Racing, and Murray Carter as a privateer)

And a lesson in engineering superiority also to see the GTR absolutely trounce everything off the line and then pretty much control race pace. Fast, professional, everything they should be, but sadly never hit the mark for aural entertainment like a V8.

[Dale FZ1]

Are the Group-A GT-Rs like 1200kg? Or something like that. Under 1300kg's if I remember reading somewhere.

I'd have to go back a bit to remember, but I believe on introduction they were over 1300kg - engine equivalence factor put them in the same weight class as the destroked 4987cc Commodore. Then they were ballasted and de-boosted to nobble the advantage. I believe that come Bathurst 92 they were weighing 1500kg and suffering brake problems as a result.

[frankxinyu]

the pics in sydneykid's thread are great....

i can see beerbaron's point now..

[justinfox]

Dale FZ1: Yup sorry you're right. Over 1200 for sure, more like 1325 (which is awesome).

[dontfeelcold]

What front bumper is the car in that pdf using? Looks like they have done a bit of fibreglassing or something to make it one piece.

[djr81]

A bit deflating to see the relatively underpowered but pretty HR31 get belted by Sierra RS500s. There was only ever a max (that I can recall 3 HR31s running - two Peter Jackson Racing, and Murray Carter as a privateer)

Hmm, maybe my memory is playing tricks on me, but I don't remember Murray Carter ever driving an HR31. I thought it was a DR30? Chris Lambden (Not sure of spelling) had an HR31 in Beaurepaires (Spelling not getting any better, is it?) colours. He now is editor/owner/something important in Motorsport News fortnightly magazine/newspaper.