GT4 Clubsport Set Up
03-09-2016 | 10:51 PM
#16
Instructor
Joined: Dec 2013
Posts: 200
Likes: 15
From: San Diego
Awesome info! Do you know how the ride height is measured on the GT4's? Would be great to get a sense on the recommended ride height as compared to stock and what i am running now (3 turns lower all around). Also even more useful is to compare rake between stock and the Clubsport.
https://rennlist.com/forums/gt4/8972...t-results.html
Spec for the car is:
F 106mm (+-10mm =96-116)
R 133 (+-10mm=123-143)
Spec for the Club Sport version is:
F: 79mm
R: 105mm
So -- it seems like you would be at 101.5mm front and 128.5mm rear.
I am running 97mm front and 124mm rear.
Looks like the CS has 1mm less rake than the Road going version, but they have changed springs, tires, bushings, track, tires (Volume, grip, etc.), so I don't know that there is much one can draw from that.
Not sure what the Circumference of the Club Sport 18" wheels and tires are, but they probably reduce the ride height by quite a bit.
03-09-2016 | 11:24 PM
#18
Drifting
Joined: Aug 2005
Posts: 2,432
Likes: 124
From: New York, NY
03-09-2016 | 11:50 PM
#19
Rennlist Member
Joined: Mar 2009
Posts: 5,661
Likes: 963
the one I touched with my own hands did not feel like a wrap - wraps have a rubber dampening texture to them.
Guys all we need is a flap, it's a proven technique to get more force with less conversion to drag. You could make your own and use 3M body 2-sided tape out of aluminum extruded L-beams.
What particularly interesting about the porsche design is that the lip angles towards the front of the car, I've never seen one like that before. I'm assuming it has a purpose - and to replicate that will require a bit more work for someone.
Guys all we need is a flap, it's a proven technique to get more force with less conversion to drag. You could make your own and use 3M body 2-sided tape out of aluminum extruded L-beams.
What particularly interesting about the porsche design is that the lip angles towards the front of the car, I've never seen one like that before. I'm assuming it has a purpose - and to replicate that will require a bit more work for someone.
03-09-2016 | 11:58 PM
#20
Rennlist Member
Joined: Oct 2008
Posts: 8,557
Likes: 1,389
03-10-2016 | 12:01 AM
#21
Rennlist Member
Joined: Oct 2008
Posts: 8,557
Likes: 1,389
I believe that is due to the airfoil shape of the wing. I think the Gurney Flap is a 90 degree piece that sticks up about 10 mm above the wing.
03-10-2016 | 01:12 AM
#22
Rennlist Member
Joined: Mar 2009
Posts: 5,661
Likes: 963
02-09-2017 | 04:51 PM
#25
Rennlist Member
Joined: Sep 2004
Posts: 2,244
Likes: 240
From: SF Bay Area, CA
Stock Ride Heights:
https://rennlist.com/forums/gt4/8972...t-results.html
Spec for the car is:
F 106mm (+-10mm =96-116)
R 133 (+-10mm=123-143)
Spec for the Club Sport version is:
F: 79mm
R: 105mm
So -- it seems like you would be at 101.5mm front and 128.5mm rear.
I am running 97mm front and 124mm rear.
Looks like the CS has 1mm less rake than the Road going version, but they have changed springs, tires, bushings, track, tires (Volume, grip, etc.), so I don't know that there is much one can draw from that.
Not sure what the Circumference of the Club Sport 18" wheels and tires are, but they probably reduce the ride height by quite a bit.
https://rennlist.com/forums/gt4/8972...t-results.html
Spec for the car is:
F 106mm (+-10mm =96-116)
R 133 (+-10mm=123-143)
Spec for the Club Sport version is:
F: 79mm
R: 105mm
So -- it seems like you would be at 101.5mm front and 128.5mm rear.
I am running 97mm front and 124mm rear.
Looks like the CS has 1mm less rake than the Road going version, but they have changed springs, tires, bushings, track, tires (Volume, grip, etc.), so I don't know that there is much one can draw from that.
Not sure what the Circumference of the Club Sport 18" wheels and tires are, but they probably reduce the ride height by quite a bit.
