RIP Porsche Cayman (going electric in 2025)

[EAGLE5]

Originally Posted by Yoshoobaroo

I'm curious if some performance cars will start making the electric motors less muted. Not sure if it's the type of motor or how it's integrated, but some electric motors are loud as hell. I'd love to hear what the sound is like in a lightweight 'sports' EV. Formula E cars sound cool:

The sound in that video is part straight-cut gear whine and part dying tires. If there's any motor sound, it's likely totally drowned out. So I suppose if you want the mechanical sound in an EV, you can always swap the differential for something with straight cut gears. You'll even improve efficiency a little!

[NoHaveMSG]

Originally Posted by EAGLE5

The sound in that video is part straight-cut gear whine and part dying tires. If there's any motor sound, it's likely totally drowned out. So I suppose if you want the mechanical sound in an EV, you can always swap the differential for something with straight cut gears. You'll even improve efficiency a little!

A lot of that noise is the motor. Our SEPeX and brushless setups make the same noise, even with no drive train attached to them.

[Irace86.2.0]

Originally Posted by EAGLE5

The sound in that video is part straight-cut gear whine and part dying tires. If there's any motor sound, it's likely totally drowned out. So I suppose if you want the mechanical sound in an EV, you can always swap the differential for something with straight cut gears. You'll even improve efficiency a little!

[EAGLE5]

Yup, pretty quiet.

[WolfpackS2k]

Originally Posted by wbradley

I wonder if the CEO at Porsche had a complete meltdown when he caught wind of the Tesla Plaid model. Maybe not, after all they got massive electrification press from the 918.

They have to make a better product and will continue to retain the knowhow to build track capable cars and sedan or SUV spin-offs at the upper end of the mass market.

Interesting that Toyota CEO Akio Toyoda presented to a huge Japanese automotive trade committee, over which he presides informing the members that elimination of ICE production in Japan will result in loss of 5 million jobs by 2030. He went on to explain current and upcoming hybrid technologies have increasing environmental performance that will maintain prominence going forward.

Light metals, ie lithium ion batteries entering the market are all recyclable. Not sure the percentage return on lithium when recycled but like steel, the more that gets manufactured then recycled, the bigger the available quantity of that commodity. Not sure.the limiting factor is lithium availability at least in the short term. Perhaps we will deplete lithium rather than oil from the planet at some point until another ion transfer element is used.

That may be true, but the lithium batteries aren't even the long term (overall still short term) solution - most likely the next leap in battery won't even utilize the material.

Originally Posted by serialk11r

https://rennlist.com/forums/718-gts-...l#post16683176

The lightest 718 configurable from the factory is 3200lbs lol (that guy has PCCBs and bucket seats, -80lbs between the two). Pretty sure most 718s on the road are closer to 3300, so it's not a big difference to get to 3600.

The lightest water cooled Porsche ever was I think the 987 Boxster Spyder at 2850ish actual (2700 claimed).

EDIT: I'm wrong, the Boxster Spyder M/T is apparently 100lbs less, and the normal Cayman is a little over 3100lbs.

My Cayman S was 2996 lb. But yes, despite Porsche's claims to the contrary (they're pretty great liars), every successive model (981, 982) has gained weight.

Originally Posted by nikitopo

It says 718 GT4. I would say it is the other way around, meaning it is the heavier 718 model (6-cyl vs. 4-cyl).

The Cayman/Boxster GAINED weight when it went to a 4 cylinder engine. It didn't lose weight.

Let's be honest here, leaving small volume lightweight sports cars alone would be just fine - and has zero impact on the environment (given their usage and output). Either kill them off entirely or just introduce an EV alongside and see which people choose. The fact that Porsche has applied for a waiver in the EU for the 911 to soldier on with ICE indefinitely shows just how much hypocrisy is involved.

[Irace86.2.0]

Originally Posted by EAGLE5

Yup, pretty quiet.

Skip to 1:40. Literally talks about the sound being noticeable. Yes, it is quiet and there is less NVH, but most motors aren’t too loud at 20% throttle cruising down the road unless they are straight piped or something.

[nikitopo]

Originally Posted by WolfpackS2k

My Cayman S was 2996 lb. But yes, despite Porsche's claims to the contrary (they're pretty great liars), every successive model (981, 982) has gained weight.


The Cayman/Boxster GAINED weight when it went to a 4 cylinder engine. It didn't lose weight.

I'm not sure if they are lying about the weight of 4 cyl. or not. In general people like to add random parts when ordering a new car or if it'll happen to weight it on scales they don't check the fuel level. So, it could appear an older model to be lighter and a newer model to be heavier.

[WolfpackS2k]

Swapping out a NA flat 6 engine for a 4 cylinder with all it's related HX and turbo hardware doesn't save any weight. Especially when applied to a vehicle that was designed around a 6 cylinder, not a 4 cylinder.

They pull all sorts of stuff, like making the (previously standard) 17 gallon fuel tank an option, instead gave a smaller one standard.

[Irace86.2.0]

I think the efforts to compare weights are futile. The cars typically get heavier every year despite any change in displacement unless major changes in metals were utilized to spare weight. They are always adding technology or making the vehicle bigger. The new 718 Caymans have much more performance; a new Cayman S is faster, about equal or barely behind the 981 GT4 in several head to head comparisons, so there is no sense in comparing weight when the 981 Cayman S would need need more displacement to equal the 718/982’s performance.

[EAGLE5]

I blame the specification and track time obsession for the weight. A wider, bigger-engined car is a faster car around a track, but width is less fun on a canyon road.

[nikitopo]

Originally Posted by Irace86.2.0

I think the efforts to compare weights are futile. The cars typically get heavier every year despite any change in displacement unless major changes in metals were utilized to spare weight. They are always adding technology or making the vehicle bigger. The new 718 Caymans have much more performance; a new Cayman S is faster, about equal or barely behind the 981 GT4 in several head to head comparisons, so there is no sense in comparing weight when the 981 Cayman S would need need more displacement to equal the 718/982’s performance.

They increase constantly the percentage of aluminium used in the chassis to keep the weight low. I believe the newest chassis uses something around 60% of alloy.

[EAGLE5]

I read somewhere that the grip advantages weight brings are useful in overall grip.

[Irace86.2.0]

Originally Posted by nikitopo

They increase constantly the percentage of aluminium used in the chassis to keep the weight low. I believe the newest chassis uses something around 60% of alloy.

Right. It is hard to compare. Like we can try to compare the weight of the 718 GTS 4.0 vs S, but they have different features besides the engine, so we would need to compare feature by feature. The 2015 Ford EcoBoost vs V6 Mustang were virtually identical in features, performance and weight, so that gives credence to the idea that the larger displacement motor wouldn’t weigh more or that the 4T is lighter, but then again, the 4T had more hp and tq.

On a related, but separate note, adding power to a 4T requires minimal change in weight. A simple boost controller and tune could net more power. The NA motor would need probably much more weight worth of modifications.

[nikitopo]

Originally Posted by Irace86.2.0

On a related, but separate note, adding power to a 4T requires minimal change in weight. A simple boost controller and tune could net more power. The NA motor would need probably much more weight worth of modifications.

Nah.. the majority of Porsche guys won't get this. The entry level 4T car nailed even in stock form the previous generation same level car with the NA motor and people were just complaining about losing the sound.