GT4 SPEC PROBLEMS

GT4 SPEC PROBLEMS

Author
Discussion

Scooty100

1,469 posts

117 months

Tuesday 23rd June 2015
quotequote all
Custard Beast said:
I have to say these forums are not helping the build up to getting this car....for me anyway. It is a bit like a car crash.... Horrific, but you cannot help but look incase you miss something! I look forward to the car arriving so I can spend more time driving and enjoying it rather than reading this!

The long gearing issue that seems to be a big talking point.... Every Porsche (modern at least) I have driven has had long gearing, clearly it is their philosophy and they're sticking to it! It was more noticable on my previous 981 Cayman S, but the adddional torque/capacity should remedy this....

Have had the buckets on my spec from the start and am sticking with them however long it takes. I have no reason to be overly concerned after talking to a chap from Reading, despite the various reports/information you see on here. Even now the folding bucket seat is now available (£300 more than the 918 seats) I won't be swayed.

A shame everyone isn't a bit more positive to be honest. If the gearing is too long, or the seats too uncomfortable, or it doesn't have enough downforce (!!) then buy something else!! I for one am very grateful I'm in a position and been offered to buy a car that a great number of people would love to. We are the chosen few people! :-)

Anyway rant over...
All fair comment

seawise

2,147 posts

207 months

Tuesday 23rd June 2015
quotequote all
Custard Beast said:
I have to say these forums are not helping the build up to getting this car....for me anyway. It is a bit like a car crash.... Horrific, but you cannot help but look incase you miss something! I look forward to the car arriving so I can spend more time driving and enjoying it rather than reading this!

The long gearing issue that seems to be a big talking point.... Every Porsche (modern at least) I have driven has had long gearing, clearly it is their philosophy and they're sticking to it! It was more noticable on my previous 981 Cayman S, but the adddional torque/capacity should remedy this....

Have had the buckets on my spec from the start and am sticking with them however long it takes. I have no reason to be overly concerned after talking to a chap from Reading, despite the various reports/information you see on here. Even now the folding bucket seat is now available (£300 more than the 918 seats) I won't be swayed.

A shame everyone isn't a bit more positive to be honest. If the gearing is too long, or the seats too uncomfortable, or it doesn't have enough downforce (!!) then buy something else!! I for one am very grateful I'm in a position and been offered to buy a car that a great number of people would love to. We are the chosen few people! :-)

Anyway rant over...
agree, but come on this is Pistonheads after all, moaning endlessly like spoilt children, matters.

Phooey

12,613 posts

170 months

Tuesday 23rd June 2015
quotequote all
PorscheGT4 said:
ok you up the ride height 10mm, and that will give you a given number for down force.

then you take out the front flaps and increase the rear wing tilt, that will give you more down force than the car had before, height for height !!

no rocket science going on here !



DMC2

1,834 posts

212 months

Tuesday 23rd June 2015
quotequote all
Phooey said:
PorscheGT4 said:
ok you up the ride height 10mm, and that will give you a given number for down force.

then you take out the front flaps and increase the rear wing tilt, that will give you more down force than the car had before, height for height !!

no rocket science going on here !
Hahahahahaha!

PorscheGT4

21,146 posts

266 months

Tuesday 23rd June 2015
quotequote all
lsb said:
I had hoped that you were joking, but clearly you were not.

Good luck with that.
thanks you clearly cannot read or understand my post :-)

Custard Beast

88 posts

193 months

Tuesday 23rd June 2015
quotequote all
I'm no expert but is anyone going to be able to notice 100kg of downforce in any situation that we may or may not put the car through at any track or road? Assume this figure is at top speed?

Understand 981's were prone to a bit of front lift at high speed, and this will eradicate that, but extra grip.....??!!

I understand 100kg is better than 0kg but struggle to believe us mere mortals will be able to notice much...

PorscheGT4

21,146 posts

266 months

Tuesday 23rd June 2015
quotequote all
Custard Beast said:
I'm no expert but is anyone going to be able to notice 100kg of downforce in any situation that we may or may not put the car through at any track or road? Assume this figure is at top speed?

Understand 981's were prone to a bit of front lift at high speed, and this will eradicate that, but extra grip.....??!!

I understand 100kg is better than 0kg but struggle to believe us mere mortals will be able to notice much...
as most cars have lift, it has to be good imo, never driven a car with real down force so , no idea. be nice if it did help to fight understeer on sweepers on track.

AT Spa last year at Pouhon I unsteered right off the track and st myself lol but a lot of cars do understeer there,

GaryF

970 posts

254 months

Tuesday 23rd June 2015
quotequote all
It won't be quite enough downforce to allow you to drive through tunnels upside down. I've just done some fag packet maths, but I think I'm right in saying that.

Custard Beast

88 posts

193 months

Tuesday 23rd June 2015
quotequote all
PorscheGT4 said:
as most cars have lift, it has to be good imo, never driven a car with real down force so , no idea. be nice if it did help to fight understeer on sweepers on track.

AT Spa last year at Pouhon I unsteered right off the track and st myself lol but a lot of cars do understeer there,
Yes but my point (hypothetical) is that if you could go through Pouhon at 180mph you might notice something... At 60/70/80/90/whatever mph there is no difference when the maximum on offer is 100kg. I don't know how downforce builds in relation to speed, but I should think is it minimal at the speeds a GT4 will achieve....

Anyway, I'm getting drawn into it now!

Phooey

12,613 posts

170 months

Tuesday 23rd June 2015
quotequote all
Unless you are Lewis Hamilton it's pub talk

bcr5784

7,118 posts

146 months

Tuesday 23rd June 2015
quotequote all
PorscheGT4 said:
as most cars have lift, it has to be good imo, never driven a car with real down force so , no idea. be nice if it did help to fight understeer on sweepers on track.

AT Spa last year at Pouhon I unsteered right off the track and st myself lol but a lot of cars do understeer there,
If you lift the car you will reduce downforce at the front significantly, but make little difference at the back. Increasing the back wing angle of attack will increase rear grip and therefore the net effect will be to make (aerodynamic) understeer significantly WORSE. Sure you are increasing mechanical grip at the front by softening the front arb, but I'm not sure the net effect will be a reduction in understeer on fast sweepers, more likely the reverse.

cc3

2,801 posts

117 months

Tuesday 23rd June 2015
quotequote all
Phooey said:
Unless you are Lewis Hamilton it's pub talk
Agree and I am sure everyone will be very impressed !

FrankCayman

2,121 posts

214 months

Tuesday 23rd June 2015
quotequote all
PorscheGT4 said:
ok you up the ride height 10mm, and that will give you a given number for down force.

then you take out the front flaps and increase the rear wing tilt, that will give you more down force than the car had before, height for height !!

no rocket science going on here !
Ha ha ha ha.....seriously made me laugh......you live in a dream world, mate!!

PorscheGT4

21,146 posts

266 months

Tuesday 23rd June 2015
quotequote all
Must be my bad English then as what I have written makes perfect sense to me.

Scooty100

1,469 posts

117 months

Friday 26th June 2015
quotequote all
The new folding bucket seats (P03) will only be available to customers with cars that will go to build before August and want bucket seats. They will be charged at £2,226.

From August onward the original bucket seats (launch seats) will be available and cars specified with bucket seats will be built with the original bucket seats from August onward. They will be charged at £1,907. At that point there will be no delays for waiting for bucket seats.

Was sent the above y'day.

Apologies if its a repost but thought worth sharing if not

SFO

5,169 posts

184 months

Friday 26th June 2015
quotequote all
Scooty100 said:
The new folding bucket seats (P03) will only be available to customers with cars that will go to build before August and want bucket seats. They will be charged at £2,226.

From August onward the original bucket seats (launch seats) will be available and cars specified with bucket seats will be built with the original bucket seats from August onward. They will be charged at £1,907. At that point there will be no delays for waiting for bucket seats.

Was sent the above y'day.

Apologies if its a repost but thought worth sharing if not
surprising that newer seats are cheaper

acey81

177 posts

111 months

Friday 26th June 2015
quotequote all
Scooty100 said:
The new folding bucket seats (P03) will only be available to customers with cars that will go to build before August and want bucket seats. They will be charged at £2,226.

From August onward the original bucket seats (launch seats) will be available and cars specified with bucket seats will be built with the original bucket seats from August onward. They will be charged at £1,907. At that point there will be no delays for waiting for bucket seats.

Was sent the above y'day.

Apologies if its a repost but thought worth sharing if not
However, the Clubsport Package is not available with the new P03 seats, which will still cause a lot of people problems.

IREvans

1,126 posts

123 months

Monday 29th June 2015
quotequote all
PorscheGT4 said:
ok you up the ride height 10mm, and that will give you a given number for down force.

then you take out the front flaps and increase the rear wing tilt, that will give you more down force than the car had before, height for height !!

no rocket science going on here !
So you're going to take weight off the front axle by lifting it 10mm, then increase weight on the rear axle by increasing wing angle...? You're mental...!

keep it lit

3,388 posts

168 months

Monday 29th June 2015
quotequote all
IREvans said:
PorscheGT4 said:
ok you up the ride height 10mm, and that will give you a given number for down force.

then you take out the front flaps and increase the rear wing tilt, that will give you more down force than the car had before, height for height !!

no rocket science going on here !
So you're going to take weight off the front axle by lifting it 10mm, then increase weight on the rear axle by increasing wing angle...? You're mental...!

PorscheGT4

21,146 posts

266 months

Monday 29th June 2015
quotequote all
IREvans said:
So you're going to take weight off the front axle by lifting it 10mm, then increase weight on the rear axle by increasing wing angle...? You're mental...!
I am doing no such thing ! ODD