781 GT4 Recommended mods
781 GT4 Recommended mods
Author
Discussion

MannyLon

Original Poster:

2,025 posts

229 months

Tuesday 11th August 2020
quotequote all
Experienced input required here please. What are the recommended mods in order of cost effectiveness for track / fast road use?
Can we please not let this descend into opinions on how rubbish the 718 is and only comment if you have tried the suggestions on the 718 GT4.

Porsche911R

21,146 posts

288 months

Tuesday 11th August 2020
quotequote all
Get a Geo

depending if you want a more track focused geo you will need a set of rear adjustable Tow links.

upgraded pads.

Drive it.

Job done.

MannyLon

Original Poster:

2,025 posts

229 months

Tuesday 11th August 2020
quotequote all
Porsche911R said:
Get a Geo

depending if you want a more track focused geo you will need a set of rear adjustable Tow links.

upgraded pads.

Drive it.

Job done.
Thanks

TDT

6,125 posts

142 months

Tuesday 11th August 2020
quotequote all
Porsche911R said:
Get a Geo

depending if you want a more track focused geo you will need a set of rear adjustable Toe links.

upgraded pads.

Drive it.

Job done.
Yep...

Its the same chassis platform as the 981... so all the same existing options apply.
The above is all that is required... you can spend more at the end of the day - but the above is enough.

Edited by TDT on Tuesday 11th August 15:22

Rojibo

1,747 posts

100 months

Tuesday 11th August 2020
quotequote all
Have you already got yours yet?

Delivery in December, I'm planning on getting the geo done when I take it for an oil change at ~1200ish miles. I'm thinking -2 camber on the fronts, -1.6 on the rears, toe in. Is that achievable with the stock parts?

I believe the ARB is medium/medium from the factory too, you could go soft/medium, or medium/hard. I also believe most people change the angle of the wing to the more aggressive angle and remove the pair of vents at the front to match, for the maximum downforce setting.

MannyLon

Original Poster:

2,025 posts

229 months

Tuesday 11th August 2020
quotequote all
TDT said:
Yep...

Its the same chassis platform as the 981... so all the same existing options apply.
The above is all that is required... you can spend more at the end of the day - but the above is enough.

Edited by TDT on Tuesday 11th August 15:22
Thanks again TDT

MannyLon

Original Poster:

2,025 posts

229 months

Tuesday 11th August 2020
quotequote all
Rojibo said:
Have you already got yours yet?

Delivery in December, I'm planning on getting the geo done when I take it for an oil change at ~1200ish miles. I'm thinking -2 camber on the fronts, -1.6 on the rears, toe in. Is that achievable with the stock parts?

I believe the ARB is medium/medium from the factory too, you could go soft/medium, or medium/hard. I also believe most people change the angle of the wing to the more aggressive angle and remove the pair of vents at the front to match, for the maximum downforce setting.
Hope to get mine in November, but like to plan ahead. Dealer told me it was Oct build.
Would be good to get some recommended settings noted.
Thanks again for all input.

Twinfan

10,125 posts

127 months

Tuesday 11th August 2020
quotequote all
Don't think there are aero adjustments on the 718 GT4, I've certainly not found any on mine!

My geo is -2 up front and -1.5 at the rear. The front needed shims, the rear didn't.

I'm going to add an exhaust then that's it for me for road use.

Porsche911R

21,146 posts

288 months

Tuesday 11th August 2020
quotequote all
Twinfan said:
Don't think there are aero adjustments on the 718 GT4, I've certainly not found any on mine!

My geo is -2 up front and -1.5 at the rear. The front needed shims, the rear didn't.

I'm going to add an exhaust then that's it for me for road use.
did you say -1.5 was the max on oem parts rear? for the poster above who wants -1.6

Rojibo

1,747 posts

100 months

Tuesday 11th August 2020
quotequote all
I thought the rear wing had two settings, one more aggressive angle. Maybe it was just the 981?

Wow Mad Scientist, I take it that’s with the stock suspension geo? Anyone know what the factory settings are?

TDT

6,125 posts

142 months

Tuesday 11th August 2020
quotequote all
Mad Scientist said:
Definitely get a geo.

I can’t get in to Centre Gravity until September so in the mean time I will continue to kill tyres.

Bedford on Saturday where I’m going to play around with the roll bars.

Front left after 2 x Silverstone GP, 1 x Donnington evening session and 1 X Oulton looked like this:

Yikes... i've never had a tyre like that on my car!!.

Did you rotate side to side at all - to help balance/manage?

MannyLon

Original Poster:

2,025 posts

229 months

Tuesday 11th August 2020
quotequote all
Twinfan said:
Don't think there are aero adjustments on the 718 GT4, I've certainly not found any on mine!

My geo is -2 up front and -1.5 at the rear. The front needed shims, the rear didn't.

I'm going to add an exhaust then that's it for me for road use.
Have you decided on exhaust?
I was thinking of getting a exhaust flap controller first.

TDT

6,125 posts

142 months

Tuesday 11th August 2020
quotequote all
Twinfan said:
Don't think there are aero adjustments on the 718 GT4, I've certainly not found any on mine!

My geo is -2 up front and -1.5 at the rear. The front needed shims, the rear didn't.

I'm going to add an exhaust then that's it for me for road use.
For the aero - there should be a small section in front of each front wheel - that can be taken out... two small screws holding each piece in.
On the Rear, the wing can be adjusted... its in the track driving documentation.

Twinfan

10,125 posts

127 months

Tuesday 11th August 2020
quotequote all
MannyLon said:
Have you decided on exhaust?
I was thinking of getting a exhaust flap controller first.
I'm just going with an exhaust, I don't want to mess with the electronics so the exhaust flap/valve mods aren't for me.

Twinfan

10,125 posts

127 months

Tuesday 11th August 2020
quotequote all
Porsche911R said:
did you say -1.5 was the max on oem parts rear? for the poster above who wants -1.6
Depends on what toe and ride height you want to run. Mine is -1.55 degrees with 20mins toe running standard ride height.

Twinfan

10,125 posts

127 months

Tuesday 11th August 2020
quotequote all
TDT said:
For the aero - there should be a small section in front of each front wheel - that can be taken out... two small screws holding each piece in.
On the Rear, the wing can be adjusted... its in the track driving documentation.
Cheers TDT - must have missed that. Will check the manual...

MannyLon

Original Poster:

2,025 posts

229 months

Tuesday 11th August 2020
quotequote all
Twinfan said:
I'm just going with an exhaust, I don't want to mess with the electronics so the exhaust flap/valve mods aren't for me.
Cool. Any thoughts on which one?

Twinfan

10,125 posts

127 months

Tuesday 11th August 2020
quotequote all
MannyLon said:
Cool. Any thoughts on which one?
Yep, I know exactly which one. I'll be finalising some details tomorrow or Thursday and should be having it fitted sometime next month.

MannyLon

Original Poster:

2,025 posts

229 months

Tuesday 11th August 2020
quotequote all
Twinfan said:
Yep, I know exactly which one. I'll be finalising some details tomorrow or Thursday and should be having it fitted sometime next month.
Okay, please let us know when finalised.

BrotherMouzone

3,169 posts

197 months

Tuesday 11th August 2020
quotequote all
Mad Scientist said:
I did. I’ve never had this before either, almost delamination. We’ve sent pics to Michelin to find out if my driving is worse than I thought or if they will offer something as an incentive on new boots.

Regardless, it was fun doing it!
cool