When you click on links to various merchants on this site and make a purchase, this can result in this site earning a commission. Affiliate programs and affiliations include, but are not limited to, the eBay Partner Network.
Surprising but I take your word for it.
I just figured it will do everything better and I may have underestimated how hard it is to extract more Laptime out of the Turbo.
Just compared data from my 2RS from Manthey against the Manthey 3RS
Very interesting and explains a lot...
overall weight difference is c50kg (my car has PCM and AC but no lift, has xenons etc. Both cars on Mg wheels).
However, the 2RS is 39kg lighter at front, and 89kg heavier at rear!
weight distribution goes from 40/60 on the 3, to 36/64
I think some of that is down to the way they’ve redistributed the weight, but a quick reconciliation and it still looks like my car now has 70kg more out the back than a standard 3RS.
Last edited by Footsoldier; 08-25-2018 at 09:01 AM.
Just compared data from my 2RS from Manthey against the Manthey 3RS
Very interesting and explains a lot...
overall weight difference is c50kg (my car has PCM and AC but no lift, has xenons etc. Both cars on Mg wheels).
However, the 2RS is 39kg lighter at front, and 89kg heavier at rear!
weight distribution goes from 40/60 on the 3, to 36/64
I think some of that is down to the way they’ve redistributed the weight, but a quick reconciliation and it still looks like my car now has 70kg more out the back than a standard 3RS.
I find this fascinating and informative considering your vast history with tracking..Looks like Autocar is spot on when it concluded in its GT2 RS Roadtest that this car is a stage too far for what is essentially a standard 991 platform.The weight distribution variation between the .2RS and .3RS is pretty much self explanatory and backs up what you say 100%..
The next 992 GT2 RS will need to be more mid-engined like this years Le Mans Porsches..Ironically your car's balance would benefit from having around 10Kg of LEDs and Lift at the very front however only to a miniscule degree..
Just compared data from my 2RS from Manthey against the Manthey 3RS
Very interesting and explains a lot...
overall weight difference is c50kg (my car has PCM and AC but no lift, has xenons etc. Both cars on Mg wheels).
However, the 2RS is 39kg lighter at front, and 89kg heavier at rear!
weight distribution goes from 40/60 on the 3, to 36/64
I think some of that is down to the way they’ve redistributed the weight, but a quick reconciliation and it still looks like my car now has 70kg more out the back than a standard 3RS.
Yes that’s closer to the weight distribution of a turbocharged 911.. Intercoolers, turbos and other additional components in the GT2RS at the far rear end make the difference.
However, the 2RS is 39kg lighter at front, and 89kg heavier at rear!
weight distribution goes from 40/60 on the 3, to 36/64
Wow!
Thats massive?!!
Where does that huge weight loss come from on the front?
and are a couple turbo’s that much heavier? They are replacing two side mufflers that are 23lb? Each!
Just compared data from my 2RS from Manthey against the Manthey 3RS
Very interesting and explains a lot...
overall weight difference is c50kg (my car has PCM and AC but no lift, has xenons etc. Both cars on Mg wheels).
However, the 2RS is 39kg lighter at front, and 89kg heavier at rear!
weight distribution goes from 40/60 on the 3, to 36/64
I think some of that is down to the way they’ve redistributed the weight, but a quick reconciliation and it still looks like my car now has 70kg more out the back than a standard 3RS.
Originally Posted by TRAKCAR
Wow!
Thats massive?!!
Where does that huge weight loss come from on the front?
and are a couple turbo’s that much heavier? They are replacing two side mufflers that are 23lb? Each!
I don’t have any problem sharing the full set-up, but don’t think that’s fair to Manthey as it’s their intellectual property.
But just looking at the weight, here is my car, with 80kg driver ballast and 90litre fuel ballast:
1568kg
FL 279.0 FR 294.0 36.5%. Total 573kg .
RL 489.0 FR 506.0 63.5%. Total 995kg
(Diagonal 49.94%)
The Manthey 991.2 3RS is below.
On their .1RS, the weight had moved about 8kg towards the front over a standard car, so there is some margin for the set-up they’ve put on but probably not material. Also, they used a 75kg driver ballast so there’s 5kg to be knocked off these total weights. Both cars on Mg wheels
Front total 612kg (+39kg over my 2RS)
Rear total 906 kg (-89kg under 2RS)
Diagonal weight 3RS 48:52 2RS 50/50
front to rear 40/60 versus 36.5/63.5 on 2RS
these are both current generation cars, on same suspension, but tweaked to suit characteristics of each.
So they obviously start off with a big difference in weight distribution, and are also obviously optimised in different ways, but even as a non-engineer, I can see they ain’t the same!
Last edited by Footsoldier; 08-25-2018 at 11:57 AM.
^^ OK, thank you so much!
I understand now, they moved weight to the rear to accommodate the TQ delivery, thereby shifting he balance.
Thats a complex game, and it explains you experiencing the challenge of driving g at the limit.
Big boys car then when setup for max Laptime, instead of drivability
My .1RS is slammed down in front and it made a gigantic difference. Going opposite + 200HP and I understand very well...
Thanks for sharing the info footsoldier ~40+ KGs coming from turbo hardware. Also rear height on the GT2RS is setup lower by Manthey, if it’s the same as the specs they gave me.
I find this fascinating and informative considering your vast history with tracking..Looks like Autocar is spot on when it concluded in its GT2 RS Roadtest that this car is a stage too far for what is essentially a standard 991 platform.The weight distribution variation between the .2RS and .3RS is pretty much self explanatory and backs up what you say 100%..
The next 992 GT2 RS will need to be more mid-engined like this years Le Mans Porsches..Ironically your car's balance would benefit from having around 10Kg of LEDs and Lift at the very front however only to a miniscule degree..
yes and unfortunately the numbers are with a 90litre fuel ballast whereas we only have 60l in RHD cars, so another 20kg less on front in real life.
Roll on the extended-life water tank!
SDGT3 & Footsoldier: Re GT2RS Weighing and Balancing, you may find this YouTube video Interesting starting at 5:09.
It also shows the larger Water Tank Installation. See "Improving the 911 GT2RS" Below
Great info on the weights in 2rs. Last time on track, there were two 2RSs with owners driving 3RS as well and both complained on 2's behaviour at the limit. One got ahead of fastest 3RSs only after fitting Trofeo R tyres. And only by 1.5 s on a 4.35 km track.
08-25-2018, 08:36 AM
