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One of the advantages of stiffer spring rates is the ability to run an Aero package and not overwhelm the front end. I'm now running the Ventus package on my car and topped my PB at LS by close to a second first time out inspite of being on worn out Maxx Race 2s with 6 track days on them. First time over the top at turn 1 LS with the Tractive and full aero had me grinning ear to ear. Going to Sonoma next week on new AR1s and can't wait. The car feels perfect to me now.
We have the same taste in wheels my friend. My favourite two.
BBS FI-R EVO GE1-R
Originally Posted by RDCR
One of the advantages of stiffer spring rates is the ability to run an Aero package and not overwhelm the front end. I'm now running the Ventus package on my car and topped my PB at LS by close to a second first time out inspite of being on worn out Maxx Race 2s with 6 track days on them. First time over the top at turn 1 LS with the Tractive and full aero had me grinning ear to ear. Going to Sonoma next week on new AR1s and can't wait. The car feels perfect to me now.
I want to do the strakes. To do the Ventus front underbody tray, I think I’d need to change the GT3 front black plastic surrounds to GT3-RS? Which means i’d probably need to do the vented guards as well.
I want to do the strakes. To do the Ventus front underbody tray, I think I’d need to change the GT3 front black plastic surrounds to GT3-RS? Which means i’d probably need to do the vented guards as well.
The Ventus front splitter is a direct fit to the bottom of the .2 GT3 OEM plastic. While it will work on a .1 like mine it requires some finagling to fit it.
The Ventus front splitter is a direct fit to the bottom of the .2 GT3 OEM plastic. While it will work on a .1 like mine it requires some finagling to fit it.
Wait, are you saying it will directly bolt to a .2 GT3?
I thought they were for RS. Whilst the RS has the same coloured bumper, the black plastic surrounds are very different.
How do you finetune for High/low comp/rebound settings for the earlier DSC (997) models which does not have the ride height sensors to enable the velocity section of the DSC?
I've run the Tractive Suspension for a full track season on my 991.2 GT3 RS with the 130/200 springs.
I run mostly Hoosier R7's. I have kept all my data and video and have compared it to my times and data from the year before at the same tracks.
In general, it took me 2-3 months to trust the car and make adjustments in my driving style, sway bar settings, and aero adjustments.
Before I give my feedback - the bottom line is that apples to apples - same tires - same tracks - same driver - I was ultimately 3 - 4 seconds faster per lap consistently at a long track (Watkins Glen) and 2 - 2.5 seconds faster at shorter tracks such as (NJMP).
In all cases - I beat my best former best track times at all the tracks with all other variables being similar as to before the suspension upgrade. An additionally benefit is that tire wear was more consistent. I basically felt much more comfortable in the car.
Improvements:
- braking zones - even bumpy areas - felt more composed
- curbing - at first I didn't trust the car because of the firmer springs - however, later, I proved in the data that I could carry more speed through the apex curbing
- corner entry - this is where the car really shines - less roll - more stability - nose points decidedly where you aim
- Apex - make sure that you're on power aggressively to take advantage and transfer the load
Cautions:
- I experimented all season with sway bar adjustments and ended up right back to my original set-up (middle / middle) for the best lap times.
- When I applied more rear bar (full stiff or 1 rear side full stiff and the other in the middle) I induced too much early corner entry oversteer - in both high and low speed turns.
- Full stiff rear did get me to point the front of the car better and quicker - and I could straighten any oversteer by applying more throttle - but the data clearly demonstrated that this did not generate the fastest lap times (I looked like a "drifter" on the track).
Cool Stuff:
- The car has a very low aggressive stance
- The compliance is amazing - even in the "bumpy" areas on track
- No surprises in the brake zones
- Curbs (what curbs?) I don't even fell them but occasionally get airborne (entry to the "bus stop" at the Glen),
- Very little appreciable body roll - didn't have to wait for the car / suspension to take a "set"
- Get to full throttle earlier
- the dampers compensate for increased aero loads in real time
- very good ride around town
Noise:
- front helper spring gets bound up on the strut mount when unloaded at very low speeds over bumps on the street
Other Pro's:
- having Tom at TPC provide continued guidance and support as needed!
Do you run helpers or tender springs with your 130/200 setup? If so, what rates are the tenders? What rates did you have before.
I’m still thinking 120/170 or 120/180. But with proper tenders, not just the helpers i currently have with 100/150 and tractive and dsc.
Many times I have made inquiries about the spring rates of the MR setup, just ti be ignored. So here is a little message from Eibach. 🤣
Its the weirdest thing. I have gone almost 20% stiffer amd the ride seems softer. I think I am finally stiff enough for tractive to actually do its thing.
Sorry to hear ur ignored by manthey. Officially the MR setup on the gt3rs is 120/150 and gt2rs is 120/170.
Cheers,
Yes thanks. I sifted through many images of them and finally confirmed it. My car is a highly modded GTS with up graded TiAL M800 turbo’s. Pretty much putting out similar power to the GT2-RS. So i went 120/170.
It’s surprisingly compliant on the street. I’m am hitting the track this Friday night.
I wonder why they went 120/150 on the 3-RS? Surely there isn’t that much difference in Aero between 2-RS and 3-RS. I mean in actual downforce, not looks?
Yes thanks. I sifted through many images of them and finally confirmed it. My car is a highly modded GTS with up graded TiAL M800 turbo’s. Pretty much putting out similar power to the GT2-RS. So i went 120/170.
It’s surprisingly compliant on the street. I’m am hitting the track this Friday night.
I wonder why they went 120/150 on the 3-RS? Surely there isn’t that much difference in Aero between 2-RS and 3-RS. I mean in actual downforce, not looks?
991.2 gt3rs has more down force than the gt2rs... 20% or so more.
Then it doesn’t make sense to have the stiffer rear in the 2-RS. Unless it’s a much heavier car?
You usually go the softest spring rate, that can handle your Aero. So as Aero increases, so should spring rate.
The GT2 RS has 40kg more weight than the GT3 RS all slung over the rear axle which affects weight distribution and balance. The Spring rates on the rear of the GT2 RS are less than the GT3 RS because of this more rear biased weight distribution otherwise you would have excessive understeer on high speed corners.
This is the info I was given so don't shoot the messenger.
04-02-2022 | 11:51 AM
