Cargraphic valve controller for 718 GT4 - Page 2 - Boxster/Cayman - PistonHeads UK

All has anyone fiited one of these please?

They do look quite a pain to fit in the Cayman, probably much easier in a Spyder where you’re not getting stuck on the roof/cage. Can you go in from underneath? I’ll just disconnect the vacuum hoses I think.

Rojibo said: They do look quite a pain to fit in the Cayman, probably much easier in a Spyder where you’re not getting stuck on the roof/cage. Can you go in from underneath? I’ll just disconnect the vacuum hoses I think. I'd get a mechanic to fit it. Would be nice to go normal mode for cruising etc.

https://youtu.be/lsFIEPHEfjc

ags11 said: https://youtu.be/lsFIEPHEfjc Yep, seen that. Does not do it justice IMO.

Found 2 new vids on it: https://youtu.be/kfCa7JSu9Yg https://www.youtube.com/watch?v=-HygaPuGeUM

MannyLon said: Found 2 new vids on it: https://youtu.be/kfCa7JSu9Yg https://www.youtube.com/watch?v=-HygaPuGeUM What do you think, now you’ve had it done?

TDT said: What do you think, now you’ve had it done? Very good. Like having a new exhaust. Good thing is you can switch to normal mode for quiet cruising. Sport button gives you a few pops and a growl through the rev range...

MannyLon said: TDT said: What do you think, now you’ve had it done? Very good. Like having a new exhaust. Good thing is you can switch to normal mode for quiet cruising. Sport button gives you a few pops and a growl through the rev range... Good to have full control all the time. People do talk about pulling the vacuum pipes also, but good to retain switch-ability for this IMO.

I think they're a decent option if you're keeping the standard exhaust. Not needed if you replace the silencer IMHO.

TDT said: Good to have full control all the time. People do talk about pulling the vacuum pipes also, but good to retain switch-ability for this IMO. Yes. I like it a lot. Valves open and it sounds like a track car, closed and it's back to standard.

Twinfan said: I think they're a decent option if you're keeping the standard exhaust. Not needed if you replace the silencer IMHO. Replaced silencer will still face the same issue of valves closing through the rev range, granted the sound will be better than stock. I may still change the exhaust, but not sure which part of the system to change next, low cell opf pipe, headers or backbox?

The valves just push the exhaust gases towards the silenced part of the system, which on a sport system doesn't make that much difference due to the reduced silencing in place. Hence my comment above

Twinfan said: The valves just push the exhaust gases towards the silenced part of the system, which on a sport system doesn't make that much difference due to the reduced silencing in place. Hence my comment above At 5k revs on a motorway you might want to still close the flaps to stop the boom.

Twinfan said: The valves just push the exhaust gases towards the silenced part of the system, which on a sport system doesn't make that much difference due to the reduced silencing in place. Hence my comment above Suppose it depends on the exhaust, but most of vids I've seen, you can hear the valves in the rev range.

Porsche911R said: At 5k revs on a motorway you might want to still close the flaps to stop the boom. With the stock controls they'll be shut anyway if the exhaust button is off? Or am I missing something?

Twinfan said: With the stock controls they'll be shut anyway if the exhaust button is off? Or am I missing something? They open under pressure or above 4K ish hence why the button is handy. My GT3 at say 85mph opens the flaps and is annoying, I keep meaning to buy the switch, but I don’t use my car much. Forcing them shut might not be a good thing oem but on after market free flow exhaust should not be an issue at 80mph odd to keep the gases diverted though the silencers to keep the boom down.

My understanding is that with Stock, PSE ON, valves Open at approx 4000rpm. With PSE OFF, valves still open, but at 5000rpm. What the Cargraphic Valve Controller offers is Valves always open, or Stock.

gt4_winchester said: My understanding is that with Stock, PSE ON, valves Open at approx 4000rpm. With PSE OFF, valves still open, but at 5000rpm. What the Cargraphic Valve Controller offers is Valves always open, or Stock. Thanks. Makes the valves button a bit less use than I thought it was if you're only getting the benefit at tickover and 3800-5000rpm. I believe there's also an option to have the valves closed all the time if you get the 3-way Cargraphic controller. Edited by Twinfan on Sunday 15th November 18:50

I believe the pressure build up of having them closed all the time can cause issues. I press the button every time I get in the car, I might as well just disconnect the vacuum lines. Though the car graphic controller would give my homelink buttons a purpose as they’re not compatible with the garage door...

Rojibo said: I believe the pressure build up of having them closed all the time can cause issues. I press the button every time I get in the car, I might as well just disconnect the vacuum lines. Though the car graphic controller would give my homelink buttons a purpose as they’re not compatible with the garage door... LOL, you’re afflicted with that too!!! So annoying.

TDT said: LOL, you’re afflicted with that too!!! So annoying. Yep. Well I’ve not taken delivery yet but having done some reading, not compatible with Hormann BiSecur, I could fit a relay to the operator but then am I lowering the security of my garage? What I should have done is save the bloody £250 and just gotten one of the James Bond style lighter socket transmitters.

Can anyone point me to a company that sells this in the UK.

Drop "Mannylon" a note, I think he's the only person on here with one fitted.

kdonaldson said: Can anyone point me to a company that sells this in the UK. Parr are the main UK importers for Cargraphic and can certainly supply you a Valve controller. They are very helpful https://parr-uk.co.uk/cargraphic You can order direct from Germany for lower cost but that might end up more expensive after import duty etc. There are other Cargraphic agents in UK if you look on the Cargraphic web site. Edited by Wollemi on Friday 14th May 19:16