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Search: Posts Made By: PSk
Forum: GTA (1965-1975)   08-09-2019, 12:30 PM
Replies: 62
Views: 7,042
Posted By PSk
Goodwood allow replicas to race. While I agree...

Goodwood allow replicas to race. While I agree with what you are saying, Goodwood is not a good example of historic racing where rules are adhered to.
Pete
Forum: GTA (1965-1975)   08-05-2019, 11:48 AM
Replies: 62
Views: 7,042
Posted By PSk
Agree. Why you would buy a 50 year old...

Agree.

Why you would buy a 50 year old historic GTA and worry about winning just demonstrates what is wrong with historic racing.

Buy a modern Guilia if you want to win races.

A GTA should...
Forum: GTA (1965-1975)   12-06-2015, 08:48 AM
Replies: 62
Views: 7,042
Posted By PSk
I'm reasonably confident they would have known...

I'm reasonably confident they would have known about roll centres as Alec Issigonis did when he designed the original Mini.

But we are back in the maybe territory ... :)
So as these spindles are...
Forum: GTA (1965-1975)   12-06-2015, 12:29 AM
Replies: 62
Views: 7,042
Posted By PSk
Agree, but you need to also take into...

Agree, but you need to also take into consideration the fact that the inside tyre is unloaded so less temp or scuffing.

Now I think we can all agree that the primary reason was the roll centre...
Forum: GTA (1965-1975)   12-05-2015, 11:15 AM
Replies: 62
Views: 7,042
Posted By PSk
Alfanutsmurph, While you may be right...

Alfanutsmurph,

While you may be right regarding why your inner edge of your inside tyre wears on this track there is one problem with your theory that Alfa/Autodelta created the knuckle riser for...
Forum: GTA (1965-1975)   12-04-2015, 08:37 PM
Replies: 62
Views: 7,042
Posted By PSk
I did understand what you are saying but yep that...

I did understand what you are saying but yep that is a good picture too.

How does the other front tyre wear? evenly? Because of the mainly right hand corners you would expect that the left front...
Forum: GTA (1965-1975)   12-04-2015, 01:24 PM
Replies: 62
Views: 7,042
Posted By PSk
Yes. As heat causes tyre wear and the inside...

Yes.
As heat causes tyre wear and the inside tyre is unloaded and therefore not producing as much heat, wouldn't that wear you are talking about have been caused by the excessive negative camber on...
Forum: GTA (1965-1975)   12-04-2015, 12:22 AM
Replies: 62
Views: 7,042
Posted By PSk
True regarding braking but once cornering, ie....

True regarding braking but once cornering, ie. you have turned in, it is all about the outside wheel whether on full power or not.

Note in your excellent photo that the inside front wheel is close...
Forum: GTA (1965-1975)   12-03-2015, 09:47 AM
Replies: 62
Views: 7,042
Posted By PSk
Cornering speed is all about tyre contact patch...

Cornering speed is all about tyre contact patch but the load is on the outside wheel, so sorry don't agree that you need to worry about the inside wheel or keep it on the ground.

A car, or...
Forum: GTA (1965-1975)   12-02-2015, 09:47 AM
Replies: 62
Views: 7,042
Posted By PSk
Nobody cares what the inside wheel is doing, only...

Nobody cares what the inside wheel is doing, only the outside wheel that is doing the cornering work.
Pete
Forum: GTA (1965-1975)   10-12-2015, 09:45 AM
Replies: 62
Views: 7,042
Posted By PSk
In the old days with such soft rear springs,...

In the old days with such soft rear springs, would they not have ended up on the bump stops and therefore neutering the soft spring rate traction?

I've always understood that you should set your...
Forum: GTA (1965-1975)   10-09-2015, 10:55 AM
Replies: 62
Views: 7,042
Posted By PSk
Spring rates and body roll ??

When you look at old racing photos of the GTA's their body roll is enormous and inside wheels are often in the air. When you see these cars today they are usually cornering flat in the modern boring...
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