GT4 RS/ Spyder RS Experiences, Driving and Technical
Discussion
LiamH66 said:
You might wear the steels out while you are waiting for them though. Hoping to have a set on mine for the start of the season. Ordered in July...
I'd suggest you follow up on that with the reseller or maybe take your order else where. I have seen plenty of orders for ST kits after yours which have already been fulfilled - so seems strange that yours has not been.
Excellent video - and I directly recognise everything he says.
I found the car be much better to my taste being flatter also, taking some of the rake out of the car.
And then on the aero…. I did Oulton park at the back end of last year with aero in MdF in the AM and then HdF in the PM and PM the car was much more confident.
Just got back in from RS day at Oulton Park today, where the conditions came good in the afternoon. Car was set to MdF and it definitely was more flighty vs HdF on the previous event… because time was limited I didnt bother changing. But video comments confirm that there is quite an effective little package on the car already, and it can even be levelled up with few bits - if someone wants to go that way
LiamH66 said:
Silverstone International today for Porsche "Precision" experience, with the aforementioned PS4S's fitted to my GT4 RS. It wasn't wet, which I had expected, but it also wasn't warm.
PS4S was the perfect tyre for the conditions. I'd got them as road tyres so I could stick them on the original aluminium alloy wheels and put Cup 2s on the new set of mag wheels I bought last summer. But then realising my "low unsprung weight" conversion wasn't going to be ready in time, opted for PS4S on the ally wheels for the track day.
First of all, SO much less road noise. Not exactly relaxing, but a huge difference in general roar from the motorway on the 3 hour drive down.
Next, the PS4S's are REALLY forgiving on track, given the 7 degree temperature and need to get warmth into tyres. Once out on the track and tyres starting to warm up, the instructor said I'd reputedly be giving up 2 seconds a lap. Initially I said less than a second. But then once I'd bled the pressures down and got back onto my (slightly humble) pace, my opinion was that I'd be just as quick, maybe quicker, given the track is recovering from winter and it was still pretty cold. But I was still reluctant about firing up the Porsche Precision app, as I was probably only doing 1:18 ish laps, and my PB last year in the warm and dry on Cup 2s was 1:15.28.
Spent the second half of the morning tidying up braking points and getting the apex "attitude" and speed right for quick exits and straights, and over a ridiculously nice lunch, decided it was time to fire up the app and record a few lap times in the afternoon. Surprisingly, was in the low 1:16s pretty much straight off. With a little care and thought, got into the mid 15s by early afternoon, and recorded a new PB of 1:15.03 mid afternoon.
Could easily have spent a bit more time getting the car into the 1:14s, but the front left was taking quite a hammering, and they are supposed to be my road tyres for the year in that car. I was running 5 laps at a time maximum in the afternoon. Could have let more air out and stayed out longer, but definitely into diminishing returns, and the left rear had already been bled down by about 9 PSI.
Short summary is that as a road car, the GT4 RS seems an awful lot better on PS4S than Cup 2. As a track car, PS4S are fine when it's cold, but I think tyre temp/pressure management might be an issue once we get to proper spring and summer track temperatures.
I am still totally sold on the Suspension Secrets full kinematics package. Sitting a little too low as I haven't got around to getting ride height raised, but unless I'm on hige dips in country roads, no issues. The car is just ridiculously easy to drive on the limit, and so much more forgiving of my type errors than the standard setup.
As for carbon brakes, and shares in carbon brake manufacturing... Trying not to think about it! Next month's Oulton Park outing will likely be on mag wheels, Cup 2 tyres, and iron brake rotors.
Liam
Sounds like you had great fun! PS4S was the perfect tyre for the conditions. I'd got them as road tyres so I could stick them on the original aluminium alloy wheels and put Cup 2s on the new set of mag wheels I bought last summer. But then realising my "low unsprung weight" conversion wasn't going to be ready in time, opted for PS4S on the ally wheels for the track day.
First of all, SO much less road noise. Not exactly relaxing, but a huge difference in general roar from the motorway on the 3 hour drive down.
Next, the PS4S's are REALLY forgiving on track, given the 7 degree temperature and need to get warmth into tyres. Once out on the track and tyres starting to warm up, the instructor said I'd reputedly be giving up 2 seconds a lap. Initially I said less than a second. But then once I'd bled the pressures down and got back onto my (slightly humble) pace, my opinion was that I'd be just as quick, maybe quicker, given the track is recovering from winter and it was still pretty cold. But I was still reluctant about firing up the Porsche Precision app, as I was probably only doing 1:18 ish laps, and my PB last year in the warm and dry on Cup 2s was 1:15.28.
Spent the second half of the morning tidying up braking points and getting the apex "attitude" and speed right for quick exits and straights, and over a ridiculously nice lunch, decided it was time to fire up the app and record a few lap times in the afternoon. Surprisingly, was in the low 1:16s pretty much straight off. With a little care and thought, got into the mid 15s by early afternoon, and recorded a new PB of 1:15.03 mid afternoon.
Could easily have spent a bit more time getting the car into the 1:14s, but the front left was taking quite a hammering, and they are supposed to be my road tyres for the year in that car. I was running 5 laps at a time maximum in the afternoon. Could have let more air out and stayed out longer, but definitely into diminishing returns, and the left rear had already been bled down by about 9 PSI.
Short summary is that as a road car, the GT4 RS seems an awful lot better on PS4S than Cup 2. As a track car, PS4S are fine when it's cold, but I think tyre temp/pressure management might be an issue once we get to proper spring and summer track temperatures.
I am still totally sold on the Suspension Secrets full kinematics package. Sitting a little too low as I haven't got around to getting ride height raised, but unless I'm on hige dips in country roads, no issues. The car is just ridiculously easy to drive on the limit, and so much more forgiving of my type errors than the standard setup.
As for carbon brakes, and shares in carbon brake manufacturing... Trying not to think about it! Next month's Oulton Park outing will likely be on mag wheels, Cup 2 tyres, and iron brake rotors.
Liam
PS4S were definitely the right tyre for the AM at Oulton today.
But conditions came good in the afternoon and its was about ok enough to get heat into Cup2 and have them build and maintain stable pressure and performance, although my set are a little old from summer last year - but fine enough for season opener.
Transposed from the Oulton Park Thread...
I do think that has a lot to do with my spec though.. which is Non-WP - and I think that actually this is crucial to the internal sound. I think the Non-WP car does not have as harsh or as penetrating a noise as the WP car - It can still be loud and raucous at those high revs - but it isn't skull penetrating.
I'll have to get a few back to back rides with friends to confirm - but more than one other person has also said the same.
Esquire said:
Is the car more road compliant with the Manthey Suspension?
Yes, I do use the car on the road... I drive to all my track events and often take the car out for a b-road blast... the car can easily take a trip to the N'Ring - do laps and drive home - and its easy - and no any ill effects from noise or harshness - apart from being sat in the buckets for 5hrs straight.TDT said:
Road compliant could mean a lot... lol.
The Manthey Suspension for 4RS has 4-way adjustment for High/Low Compression and High/Low Rebound - so you can set it up for road work (within reason - its definitely a focussed sports car) or go FULL kill for track. Front Spring rate is 20N/mm stiffer - but is actually makes the front to rear balance better and the whole car work more cohesively.
The Manthey Suspension for 4RS has 4-way adjustment for High/Low Compression and High/Low Rebound - so you can set it up for road work (within reason - its definitely a focussed sports car) or go FULL kill for track. Front Spring rate is 20N/mm stiffer - but is actually makes the front to rear balance better and the whole car work more cohesively.
Esquire said:
Thanks , big learning curve for me !
Considering buying one.
Main use would be for road and 3/4 track days per year.
I'm no seasoned track expert so would need a car that I could also enjoy for 3k road miles.
I've had a good few GT P cars including a 996 RS a while back and no issues but of course our roads have gotten far worse.
Have considered the Spyder as an alternative.
May I ask if you do many road miles or just a track car ?
Last question if I may -
Is your car non WP?
Might be the better option for me .
Thanks once again
Considering buying one.
Main use would be for road and 3/4 track days per year.
I'm no seasoned track expert so would need a car that I could also enjoy for 3k road miles.
I've had a good few GT P cars including a 996 RS a while back and no issues but of course our roads have gotten far worse.
Have considered the Spyder as an alternative.
May I ask if you do many road miles or just a track car ?
Last question if I may -
Is your car non WP?
Might be the better option for me .
Thanks once again
I do think that has a lot to do with my spec though.. which is Non-WP - and I think that actually this is crucial to the internal sound. I think the Non-WP car does not have as harsh or as penetrating a noise as the WP car - It can still be loud and raucous at those high revs - but it isn't skull penetrating.
I'll have to get a few back to back rides with friends to confirm - but more than one other person has also said the same.
Gassing Station | Boxster/Cayman | Top of Page | What's New | My Stuff