GT4 on track

Author
Discussion

Porsche911R

21,146 posts

264 months

Monday 30th May 2016
quotequote all
ShakMan said:
Back to topic before this degenerates in typical PH fashion ...

1). What is the maximum camber front and back that can be achieved without new toe-arms? (shims okay)

2). Can people share their experience with arb settings ... med front/hard rear I hear is causing car to be too oversteery. How does soft front and med hard work in comparison?

Thanks.
Keep it stock that is best so every one says ;-)

I run the hard rear it's great on the road and gives you a bit of over steer on track if you are early with the throttle , but in a controlled way.

richyd

281 posts

226 months

Monday 30th May 2016
quotequote all
My understanding was soft front, hard rear, if you want to rotate the car with the throttle..?

TBH I am happy so far with mine running stock. I have raised the rear spoiler and taken the front blocks out up front, and it ran pretty well in Spa once I'd done a couple of laps to get heat in the tyres.

Not knowing the car I was uber cautious in the morning, but got faster through the day, and once the tyres switched on, it was a lovely car on track.

Given that most of my miles will be on road (as the GT3 will carry on its track duty for me), I may dial a little more camber in, but will stick to the delivery components, thus limiting what can be done.

However, I am very tempted by a bigger throttle-body and remap to release a few more ponies.....

isaldiri

18,412 posts

167 months

Monday 30th May 2016
quotequote all
Porsche911R said:
Read the post !! Understeering out of every bend was a on track quote !
Really shouldn't bite but hell why not...

Porsche911R said:
I like to get the best from my cars and never run a stock car, it,s not all about trye wear, my cars far more exciting to drive on the road, it does not wash out and the rear comes into play out the bends rather than the stty understeer out of every bend when pushed.
The steering has far more feel which is welcome and turns in more direct with added weight.

I felt the car dull when driven hard at pec, and once I pushed it on the road the set up came to the front as a very weak link.
I see no mention whatsoever of anything on track and repeated emphasis of how the car behaves on the road. Also if you were on track, most people tend to say you were understeering out of a corner than 'a bend'.

I'll leave people to decide who's full of st.

Sam All

3,101 posts

100 months

Monday 30th May 2016
quotequote all
Polite response thumbup

RT3

71 posts

185 months

Tuesday 31st May 2016
quotequote all
Hi

Where do I buy the extra camber shims for my GT4? The rear toe steer arm is readily available but I can't find the shims.

Thanks!

braddo

10,399 posts

187 months

Tuesday 31st May 2016
quotequote all
Porsche911R said:
HokumPokum said:
My understanding is that in stock mode it oversteers on corner entry..
Did you see any over steer into bends at Anglesey ?

The only reason people are getting over steer into corner entry are the guys who say stock geo is ok so have to trail into the apex making the rear go light. ! !

This forum is funny ......
What do you have against trail braking?

Porsche911R

21,146 posts

264 months

Tuesday 31st May 2016
quotequote all
braddo said:
What do you have against trail braking?
nothing, but it unsettles a mid engine car imo and not needed ON EVERY SINGLE BEND like people are driving it, you don't do it in front engine cars as the weight is there.

then you get people saying the car over steers into bends, that's because they have taken the weight off the rear tyres !

911 drivers have to do it as no weight is over the front,the bloody things don't turn in and hence driving a 91 is different, not harder like people say, just different !

as the GT4 does not have traction like a 911 why make that worse by taking even more weight off the rear of the GT4 by trail braking , when if you set the car up well the car will turn into most corners with little or no trail needed.

You still have to do it, but not every corner , it's more a fine tune.

Edited by Porsche911R on Tuesday 31st May 14:36

Porsche911R

21,146 posts

264 months

Tuesday 31st May 2016
quotequote all
RT3 said:
Hi

Where do I buy the extra camber shims for my GT4? The rear toe steer arm is readily available but I can't find the shims.

Thanks!
OPC Reading, RSS, tarett etc etc.

Porsche911R

21,146 posts

264 months

Tuesday 31st May 2016
quotequote all
isaldiri said:
I see no mention whatsoever of anything on track and repeated emphasis of how the car behaves on the road. Also if you were on track, most people tend to say you were understeering out of a corner than 'a bend'.

I'll leave people to decide who's full of st.
ok you can think and do what you like, the net result is you don't run a stock car !!! but are now sticking up the a stock set up car !

ODD !
corner/bend who cares, you are just picking a fight now which is pointless.

lemmingjames

7,434 posts

203 months

Tuesday 31st May 2016
quotequote all
Porsche911R said:
you don't do it in front engine cars as the weight is there.
I had an instructor once when i was just a demi god in my Integra DC5 and he introduced me to trail braking in a FWD car, maybe he suggested it as i was too slow/fast and would make me quicker?

Steve Rance

5,435 posts

230 months

Tuesday 31st May 2016
quotequote all
Yep, you most definately do trail in many FWD race cars.

Sam All

3,101 posts

100 months

Tuesday 31st May 2016
quotequote all
Porsche911R said:
...you are just picking a fight now which is pointless.
Many on here do smile

Porsche911R

21,146 posts

264 months

Tuesday 31st May 2016
quotequote all
Steve Rance said:
Yep, you most definately do trail in many FWD race cars.
I was more thinking still RWD but front engine like a CSL etc.
drive an M3 and you don't have turn in issues etc, but you may need to balance the car at some point.

FWD is another thing.

at the end of the day every one "trails" but put in lay mans terms it's really "the timing and rate of release of the brakes" to get the car to do what you want it to do.

every bend is different and so is every car.

So you cannot say "you don't trail etc" or you do" every corner has needs

you should not have to trail a GT4 into a high speed corer as an example but people are

Steve Rance

5,435 posts

230 months

Tuesday 31st May 2016
quotequote all
Yep. Every corner is different. The trick is to know how to approach each one

lemmingjames

7,434 posts

203 months

Tuesday 31st May 2016
quotequote all
Steve Rance said:
Yep. Every corner is different. The trick is to know how to approach each one
Balls out doesnt apply?

Steve Rance

5,435 posts

230 months

Tuesday 31st May 2016
quotequote all
Flat everywhere. Dont lift, dont brake

isaldiri

18,412 posts

167 months

Tuesday 31st May 2016
quotequote all
Porsche911R said:
ok you can think and do what you like, the net result is you don't run a stock car !!! but are now sticking up the a stock set up car !
.
As you like to say 'read the post'. I'm not sticking up for the stock setup but merely pointing out all the crap you post about understeering on the public road on stock geo is laughable.

lemmingjames

7,434 posts

203 months

Tuesday 31st May 2016
quotequote all
Steve Rance said:
Flat everywhere. Dont lift, dont brake
Not even for small children and cute puppies?

Steve Rance

5,435 posts

230 months

Tuesday 31st May 2016
quotequote all
Mmmmm..tough call

footsoldier

2,251 posts

191 months

Tuesday 31st May 2016
quotequote all
I would go as far as to say that trail braking is the fastest way in almost all cars, other than those which have loads more grip than power (eg F3 cars) when momentum is most important factor, not 'stopping and starting'

As little time gap as possible, between being on the brakes and being on the power,