The 718 GT4 might be arriving sooner than you think!

The 718 GT4 might be arriving sooner than you think!

Author
Discussion

nudgerwilliams

247 posts

181 months

Friday 18th January 2019
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isaldiri said:
People are grasping at straws to explain the differences if the 4.0 is actually true. GT4 class regulations, engine weight...?! Neither are in the least plausible. the simple answer is at the moment I think no one has a damned clue....
I'll make up another theory - the 4.0 wasn't ready, and they needed to get the race cars out, so tuned 3.8 was the quick fix.

TDT

4,935 posts

119 months

Friday 18th January 2019
quotequote all
nudgerwilliams said:
isaldiri said:
People are grasping at straws to explain the differences if the 4.0 is actually true. GT4 class regulations, engine weight...?! Neither are in the least plausible. the simple answer is at the moment I think no one has a damned clue....
I'll make up another theory - the 4.0 wasn't ready, and they needed to get the race cars out, so tuned 3.8 was the quick fix.
So they did the same thing at the introduction of the 991 GT3. The race car had the old Mezger engine - the road car had the new 3.8 rev to 9k.

So maybe we are getting an all new engine - but they aren't sure about it for racing reliability yet, maybe the new engine is heavier for other reasons (not increase in capacity) - and because BoP is so important for racing, an updated 3.8 was the necessary solution for the race car. I'm not sure that the door on turbos is shut for the road car.... nobody is right until the car is announced.


Edited by TDT on Friday 18th January 11:39

Fokker

3,460 posts

222 months

Friday 18th January 2019
quotequote all
TDT said:
So they did the same thing at the introduction of the 991 GT3. The race car had the old Mezger engine - the road car had the new 3.8 rev to 9k.

So maybe we are getting an all new engine - but they aren't sure about it for racing reliability yet, maybe the new engine is heavier for other reasons (not increase in capacity) - and because BoP is so important for racing, an updated 3.8 was the necessary solution for the race car. I'm not sure that the door on turbos is shut for the road car.... nobody is right until the car is announced.


Edited by TDT on Friday 18th January 11:39
I was told it was new... how much new is anyones guess. Good theory though
I was also told recently that its heavier than the 3.8

Romo

320 posts

116 months

Sunday 20th January 2019
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tcsracing1 Rennlist member (who is a Porsche insider as I understand it, FWIW) states the following;


"For 2019 the 718 GT4 will have PDK"


6-7 weeks to go and we all know :-)

And I do hope the choice MT/PDK can be made.

Edited by Romo on Sunday 20th January 17:56


Edited by Romo on Sunday 20th January 17:56

Fokker

3,460 posts

222 months

Monday 21st January 2019
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Romo said:
tcsracing1 Rennlist member (who is a Porsche insider as I understand it, FWIW) states the following;


"For 2019 the 718 GT4 will have PDK"


6-7 weeks to go and we all know :-)

And I do hope the choice MT/PDK can be made.

Edited by Romo on Sunday 20th January 17:56


Edited by Romo on Sunday 20th January 17:56
Its definitely going to have a manual option, i think that goes without saying... I don't see the point in not having a PDK option but I was told manual only. Who knows with Porsche these days!

boxsey

3,574 posts

210 months

Monday 21st January 2019
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More 718 GT4 motorsport news to confuse the issue of what's coming:

https://www.pistonheads.com/gassing/topic.asp?h=0&...

RacerMike

4,205 posts

211 months

Monday 21st January 2019
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I heard through my super secret source who works in a premium car specialist in Halesowen that it's actually a development of the Golf R32 VR6 engine, but with the V angle increased to 180deg, and a stroker kit to make it up to 4.0L. They've had to delay the release though as they didn't think about the fact that RHD cars have to have the orientation of the valves swapped over to make sure the centrifugal force of the valvetrain doesn't cause dynamic issues with the differently mounted steering column. Crazy to think that Porsche could make such a mistake with their engineering prowess, but my source is really close to the sale of many premium cars up to and including MY2008 and he's even been to the Porsche Museum at Zurichshausen and saw one testing IN PERSON at the Nurenbergring last winter (!!!1!) so his insider info is second to none really. He even showed me some sketches of the 992 a couple of years ago and the profile was IDENTICAL to the car they launched the other week.

Edited by RacerMike on Monday 21st January 15:52

CrashBang

225 posts

155 months

Monday 21st January 2019
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RacerMike said:
I heard through my super secret source who works in a premium car specialist in Halesowen that it's actually a development of the Golf R32 VR6 engine, but with the V angle increased to 180deg, and a stroker kit to make it up to 4.0L. They've had to delay the release though as they didn't think about the fact that RHD cars have to have the orientation of the valves swapped over to make sure the centrifugal force of the valvetrain doesn't cause dynamic issues with the differently mounted steering column. Crazy to think that Porsche could make such a mistake with their engineering prowess, but my source is really close to the sale of many premium cars up to and including MY2008 and he's even been to the Porsche Museum at Zurichshausen and saw one testing IN PERSON at the Nurenbergring last winter (!!!1!) so his insider info is second to none really. He even showed me some sketches of the 992 a couple of years ago and the profile was IDENTICAL to the car they launched the other week.

Edited by RacerMike on Monday 21st January 15:52
smile As accurate as anything else on this thread!!

TrackNutz

164 posts

76 months

Tuesday 22nd January 2019
quotequote all
RacerMike said:
I heard through my super secret source who works in a premium car specialist in Halesowen that it's actually a development of the Golf R32 VR6 engine, but with the V angle increased to 180deg, and a stroker kit to make it up to 4.0L. They've had to delay the release though as they didn't think about the fact that RHD cars have to have the orientation of the valves swapped over to make sure the centrifugal force of the valvetrain doesn't cause dynamic issues with the differently mounted steering column. Crazy to think that Porsche could make such a mistake with their engineering prowess, but my source is really close to the sale of many premium cars up to and including MY2008 and he's even been to the Porsche Museum at Zurichshausen and saw one testing IN PERSON at the Nurenbergring last winter (!!!1!) so his insider info is second to none really. He even showed me some sketches of the 992 a couple of years ago and the profile was IDENTICAL to the car they launched the other week.

Edited by RacerMike on Monday 21st January 15:52
Amazing. That made my Tuesday. I salute you sir, the Internet is a better place with people like you.

TrackNutz

164 posts

76 months

Tuesday 22nd January 2019
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On a side note, I'd love to know how they simply developed a straight 6 engine (R32 is essentially a straight six (siamese V6) with one head as we all know) into a flat 6 engine.

Simply incredible work. Especially after all the work they put into the MA1 platform, fantastic news that they're going back to an old VW engine. smile Please tell us more.

anonymous-user

54 months

Tuesday 22nd January 2019
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TrackNutz said:
R32 is essentially a straight six (siamese V6)
I've not heard the word siamese used that way before.

I think a "siamesed" engine is one where two cylinders share the same inlet or exhaust port. VR6 is a narrow angle V6 cunningly packaged under one cylinder head rather than two and looks like a conventional crossflow head with 6 inlets and 6 exhausts.

On the other hand I'm definitely no expert in these things...

anonymous-user

54 months

Tuesday 22nd January 2019
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I'm looking forward to the car being announced so that we can get back to talking about values.


RacerMike

4,205 posts

211 months

Tuesday 22nd January 2019
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TrackNutz said:
On a side note, I'd love to know how they simply developed a straight 6 engine (R32 is essentially a straight six (siamese V6) with one head as we all know) into a flat 6 engine.

Simply incredible work. Especially after all the work they put into the MA1 platform, fantastic news that they're going back to an old VW engine. smile Please tell us more.
The nephew of a friends girlfriends husband who works some weekends for a leading Motorsport team (can’t say much more than that, but needless to say they’ve made some pretty big waves racing a certain small single make car made by the VERY SAME manufacturer that helped Sebastian Loeb win his many WRC championships...which rhymes with Bitroen B1 wink) knows the wife of the chief of the parts department in the development workshop at VW who knows someone who is actual personal friends with Andreas Preulinger, and the low down is as follows.

The WLTP regs mean that legally you have to have 2 cylinders per 1 pre WLTP. The second cylinder is needed to push the exhaust through the particulate filter. Rumour has it that none of the manufacturers knew this, so they’ve had to rush through the change quickly at the end of development. Fair play to Porsche....due to the sharing of VW parts (everyone knows the 991 and newer is based on the new Beetle platform) they were able to quickly raid the parts bin and fit the VR6 head/block. The extra cylinder is what’s costing the extra power in the final figures....crazy but true.

Anyway. I’ve already said too much. Needless to say time will tell so to speak wink Watch this space...

Fokker

3,460 posts

222 months

Wednesday 23rd January 2019
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That's some very interesting info. I was told that it was a new engine so perhaps not just a development of the old one then.


TrackNutz

164 posts

76 months

Wednesday 23rd January 2019
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Oh dear, my sarcasm soon escalated.

RacerMike

4,205 posts

211 months

Thursday 24th January 2019
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TrackNutz said:
Oh dear, my sarcasm soon escalated.
laugh

ChrisW.

6,299 posts

255 months

Thursday 24th January 2019
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And Porsche Post say that the Clubsport 3.8 is dry sumped. Is that in the same way that the GT3 engine is dry sumped ? Or in the same way that the 981 GT4 is not really dry sumped ... it just has an integral oil tank and a number of scavenge pumps to return oil from areas where it is pooling due to high G ...

??

TDT

4,935 posts

119 months

Thursday 24th January 2019
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Article is vague. It says dry sump.… but from the post of RL of those that have the race car they have not highlighted that the oiling system is any different than in the 981.

gtsralph

1,186 posts

144 months

Friday 25th January 2019
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ChrisW. said:
And Porsche Post say that the Clubsport 3.8 is dry sumped. Is that in the same way that the GT3 engine is dry sumped ? Or in the same way that the 981 GT4 is not really dry sumped ... it just has an integral oil tank and a number of scavenge pumps to return oil from areas where it is pooling due to high G ...

??
Copy and paste Porsche guff

Fokker

3,460 posts

222 months

Friday 25th January 2019
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718 GT4 is being announced in May apparently. Goodwood reveal then?