The 718 GT4 might be arriving sooner than you think!

The 718 GT4 might be arriving sooner than you think!

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Discussion

RBT0

1,476 posts

120 months

Monday 14th January 2019
quotequote all
Fokker said:
For those who doubted me. 100% confirmation today that the road going GT4 doesn’t have the clubsports 3.8.

Power is apparently almost the same though. I don’t have an exact figure.
Pdk?

Fokker

3,460 posts

223 months

Monday 14th January 2019
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I’m waiting on that news. I doubt it personally but I’ll see what my source says

RSVP911

8,192 posts

134 months

Monday 14th January 2019
quotequote all
Fokker said:
I’m waiting on that news. I doubt it personally but I’ll see what my source says
Spyder ? Cheers smile

GT4P

5,215 posts

186 months

Monday 14th January 2019
quotequote all
Fokker said:
For those who doubted me. 100% confirmation today that the road going GT4 doesn’t have the clubsports 3.8.

Power is apparently almost the same though. I don’t have an exact figure.
Personally I think it will be a shame if they have gone 4.0l and same power!
Perhaps it is the f4 with 425hp;)

JayK12

2,324 posts

203 months

Monday 14th January 2019
quotequote all
RBT0 said:
Fokker said:
For those who doubted me. 100% confirmation today that the road going GT4 doesn’t have the clubsports 3.8.

Power is apparently almost the same though. I don’t have an exact figure.
Pdk?
What engine have you been told it has?

Fokker

3,460 posts

223 months

Tuesday 15th January 2019
quotequote all
My source has always said it’s a 4 litre plus that’s what Walliser told me. Not the gt3 motor though obviously.

Might it be possible that the 3.8 is lighter hence the use for racing. I’ve been told the new engine is heavier. Make of that what you will.

Fokker

3,460 posts

223 months

Tuesday 15th January 2019
quotequote all
RSVP911 said:
Fokker said:
I’m waiting on that news. I doubt it personally but I’ll see what my source says
Spyder ? Cheers smile
No more on the spyder R other than it’s more of a gt product as against an GTS this time / x51 etc

Porsche911R

21,146 posts

266 months

Tuesday 15th January 2019
quotequote all
Fokker said:
the road going GT4 doesn’t have the clubsports 3.8.

that's a shame.

there were a load of new shots posted 2 days ago, shocked no ones posted them.

Edited by Porsche911R on Tuesday 15th January 10:52

Dr S

4,997 posts

227 months

Tuesday 15th January 2019
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On the Clubsport model:

The car is apparently not living up to the lap time improvement of around 10 seconds that was expected for the Ring. Root cause appears to be that the additional power is all in the top of the rev range - no increased torque lower down.

Does anyone have info?

FTW

532 posts

177 months

Tuesday 15th January 2019
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anonymous said:
[redacted]
Ever since the introduction of power to weight classifications. Most do not include a torque to weight limit.

Torque is also important in multi-class racing for negotiating and overtaking traffic.

The 981 Clubsport was also dog slow at launch!

Porsche911R

21,146 posts

266 months

Tuesday 15th January 2019
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like for like cars, the one with the most torque at corner exit will post the faster lap, it's that basic, race cars don't live at max revs !!

I see the new CS has upped the peak torque rpm over the older car from 6k to 6.6k but the same 420nm.

Acceleration is directly proportional to the torque put through the wheels.

I don't think the moose man gets Torque, reading what he posts about torque the last 10 years, it's all about the high rpm for him.
and if he thinks a race car enters a bend at max RPM one can under stand why he has never got it !





Edited by Porsche911R on Tuesday 15th January 12:40

isaldiri

18,607 posts

169 months

Tuesday 15th January 2019
quotequote all
FTW said:
Ever since the introduction of power to weight classifications. Most do not include a torque to weight limit.

Torque is also important in multi-class racing for negotiating and overtaking traffic.

The 981 Clubsport was also dog slow at launch!
But there isn't really a power to weight classification for BoP in gt4. It's set on a 'representative' laptime the car is supposed to be capable of. SRO are supposed to have their own pro drivers driving the car to set that laptime. If the 981 was dog slow at launch, it wouldn't be due to lacking torque as it already produced the bulk of it's power way before the rev limit and it wasn't power restricted. Neither afaik is the 718 going to be so presumably it's going to be carrying even more weight.

If the new gt4 was really 10s faster at the ring it'd just have been restricted down anyway to be closer to what the other gt4 class cars are running. Political manoeuvring apart, BoP is supposed to allow the cars to compete on a relatively even basis. Spending a heap to produce a much faster car isn't the point of GT class racing.

Porsche911R

21,146 posts

266 months

Tuesday 15th January 2019
quotequote all
isaldiri said:
. Political manoeuvring apart, BoP is supposed to allow the cars to compete on a relatively even basis. Spending a heap to produce a much faster car isn't the point of GT class racing.
BoP just allows the correct car to win in the years they want to win, bit of a fix as they can choose which car wins these days, that's not racing.
Porsche won in the correct year as did Ford and so on, bit of a joke Bop, makes you wonder what back handers go on with BoP regs when you see cars down the straights leaves other standing !

Porsche911R

21,146 posts

266 months

Tuesday 15th January 2019
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anonymous said:
[redacted]
I was also gong to add in my last post you will post some impossible engine configuration, it's a given, and funny as ****, it's also a given you don't under stand how to get a lap time, what torque is or where a engine on track spends most of it's life in the rev band.

race cars don't spend much time at max bhp as they don't live at the peak revs ! race cars are in the most accelerating or braking, hitting max bhp very few times a lap. what is key is the skill in corner entry to get on the throttle as early as possible to max corner exit speeds and thus as I stated Acceleration is directly proportional to the torque put through the wheels at that point when the car is at 6k revs, bhp will give you the speed at the end of the straight.

Torque wins races hence turbo base non GT cars lap faster than NA GT cars if they had cups 2 on.
a 718 GTS would lap faster than a GT4 with like for like weight, rubber and geo but the 718 is way down on BHP over a GT4.



Edited by Porsche911R on Tuesday 15th January 13:12

pete.g

1,527 posts

207 months

Tuesday 15th January 2019
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The fastest way to drive is to keep the engine it in its power-band - that's why cars have gearboxes.

Torque is the rotational product of the initially linear force from the output shaft - it's not a separate mysterious force that helps with cornering.

The easiest example for me would be the screaming two stroke motorcycle and kart engines of my youth - very narrow power-band, hence lots of revs in order to go quickly.

isaldiri

18,607 posts

169 months

Tuesday 15th January 2019
quotequote all
anonymous said:
[redacted]
It seems that is lost on a lot of people tbh. Well that and the reason why gearboxes exist....

Taffy66

5,964 posts

103 months

Tuesday 15th January 2019
quotequote all
Power at the wheels at a given speed is a proponent of both Torque and Revs..Power is simply a multiplication of Torque x Revs.What counts in real life is the area under the curve which is directly related to the formula above.
As an example:

Car A produces 400 Torque at say 3k revs
Car B produces 350 Torque at say 3k revs
Car A produces more WHP at 3k revs.

Edited by Taffy66 on Tuesday 15th January 13:55


Edited by Taffy66 on Tuesday 15th January 13:59


Edited by Taffy66 on Tuesday 15th January 14:00

FTW

532 posts

177 months

Tuesday 15th January 2019
quotequote all
isaldiri said:
anonymous said:
[redacted]
It seems that is lost on a lot of people tbh. Well that and the reason why gearboxes exist....
Having raced a GT4 spec car in a power to weight classification race series I can ensure you that when power is capped and torque isn't, torque becomes king! It also gives you more options. It can be quicker to be in a lower gear further down the power curve but have more torque as you save the time on completing an up shift through this device you call a gearbox.

We had this exact scenario at Brand Hatch.

Torque gives you more options in traffic where you can find yourself in the wrong gear or between the ideal gear ration to be maintain peak power. Having more torque also makes a car quicker during a race especially in a converted road car using road car gear ratios that are not optimised for each circuit.


isaldiri

18,607 posts

169 months

Tuesday 15th January 2019
quotequote all
FTW said:
Having raced a GT4 spec car in a power to weight classification race series I can ensure you that when power is capped and torque isn't, torque becomes king! It also gives you more options. It can be quicker to be in a lower gear further down the power curve but have more torque as you save the time on completing an up shift through this device you call a gearbox.

We had this exact scenario at Brand Hatch.

Torque gives you more options in traffic where you can find yourself in the wrong gear or between the ideal gear ration to be maintain peak power. Having more torque also makes a car quicker during a race especially in a converted road car using road car gear ratios that are not optimised for each circuit.
Well yes I agree if power is being limited more torque allows for the maximum allowed power to be reached earlier. However as I said the BoP adjustments exist to allow cars to do similar laptimes. That, in theory is being taken into account.

Was the 981 gt4 cs even limited in power anyway in gt4? I don't think the ginetta that is a couple of hundred kg lighter is limited much if at all and it's 355hp vs 380 as the 981 was allowed more grip (bigger tyres).

Steve Rance

5,448 posts

232 months

Tuesday 15th January 2019
quotequote all
FTW said:
Having raced a GT4 spec car in a power to weight classification race series I can ensure you that when power is capped and torque isn't, torque becomes king! It also gives you more options. It can be quicker to be in a lower gear further down the power curve but have more torque as you save the time on completing an up shift through this device you call a gearbox.

We had this exact scenario at Brand Hatch.

Torque gives you more options in traffic where you can find yourself in the wrong gear or between the ideal gear ration to be maintain peak power. Having more torque also makes a car quicker during a race especially in a converted road car using road car gear ratios that are not optimised for each circuit.
You will also use less feul so you can run longer in endurance events without the need to pit. The downside is that too much of it can eat your driven tyres and may consiquently lead to a compromised driving style. On balance, for a BOP scenario i'd be with you but to cam an engine for max torque generally means sacrificing power which, without BOP regs would be what you would prefer and just gear it appropriately.