991.1 C4GTS - IPD Plenums and ECU Re-Map
Discussion
Hi All
Some help or advice needed please.
Recently purchased my 2015 991.1 C4GTS and found it to be a little lacklustre with throttle response, especially when in the lower rev range and not in any Sport Modes when i'm driving around town or when wanting to nip off at traffic lights or a roundabout. It's a bit of an intermittent thing and only I notice it because of the other Porsche's I have owned and driven. I had a 981 Cayman S before this C4GTS and that had a better throttle response. Yes the C4GTS is bigger, heavier etc but i'm somehow feeling that the C4GTS could and should be as equal or even better in this throttle response than my previous Cayman S. (twice as much money twice the car?)
Just had a major (main dealer) service carried out - filters spark plugs brake fluid etc...and i have noticed a slight improvement but not a great one.
I'm therefore thinking of getting an IPD Plenum installed and if that doesn't appease me possibly having a stage one ECU Re-Map.
Has anyone got any advice on this as it seems a lot of money for a start, or am I just being too picky or fussy ?And am I risking further headaches with engine problems and warning lights and reliability if I start messing ??
Help if you can..
Some help or advice needed please.
Recently purchased my 2015 991.1 C4GTS and found it to be a little lacklustre with throttle response, especially when in the lower rev range and not in any Sport Modes when i'm driving around town or when wanting to nip off at traffic lights or a roundabout. It's a bit of an intermittent thing and only I notice it because of the other Porsche's I have owned and driven. I had a 981 Cayman S before this C4GTS and that had a better throttle response. Yes the C4GTS is bigger, heavier etc but i'm somehow feeling that the C4GTS could and should be as equal or even better in this throttle response than my previous Cayman S. (twice as much money twice the car?)
Just had a major (main dealer) service carried out - filters spark plugs brake fluid etc...and i have noticed a slight improvement but not a great one.
I'm therefore thinking of getting an IPD Plenum installed and if that doesn't appease me possibly having a stage one ECU Re-Map.
Has anyone got any advice on this as it seems a lot of money for a start, or am I just being too picky or fussy ?And am I risking further headaches with engine problems and warning lights and reliability if I start messing ??
Help if you can..
You might want to take a bit of time to get used to the characteristics of the 3.8 before you start playing around with it.
In your GTS you also have the X51 PowerKit as standard which already includes a modified plenum, intake manifolds and exhaust manifolds.
It may be a little more ‘cruise-y’ at lower revs and then will pick up, and come on stronger and harder all the way to the top of the rev range.
3.4 will be sharper lower down but then run out of puff later on. Also as you say a lighter car, which will add to the sense of relative get up and go.
I certainly noticed a difference in delivery moving from a 997.2 GTS to a 981 GTS. Just take some time to understand it first.
Do you have PDK or manual?
In your GTS you also have the X51 PowerKit as standard which already includes a modified plenum, intake manifolds and exhaust manifolds.
It may be a little more ‘cruise-y’ at lower revs and then will pick up, and come on stronger and harder all the way to the top of the rev range.
3.4 will be sharper lower down but then run out of puff later on. Also as you say a lighter car, which will add to the sense of relative get up and go.
I certainly noticed a difference in delivery moving from a 997.2 GTS to a 981 GTS. Just take some time to understand it first.
Do you have PDK or manual?
Remapping a PowerKit Porsche with 7 valves in the plenum is not a trivial matter and I don't who in the UK I'd trust to do any remapping.
The engine has a flatter torque curve than the S version and revs quite freely; I had a previous generation 997.2 GTS and I never found a flat spot. Coming out of the Goodwood chicane I had a choice of 2nd or 3rd and it happily towed out faster in 3rd.
The engine has a flatter torque curve than the S version and revs quite freely; I had a previous generation 997.2 GTS and I never found a flat spot. Coming out of the Goodwood chicane I had a choice of 2nd or 3rd and it happily towed out faster in 3rd.
I have the PDK gearbox.
As I said i'm not displeased with the vehicle, who would be it's a fantastic bit of kit, I just feel maybe some minor adjustments may make a slight difference to the perkiness of the motor.
I was looking at Design 911 in Hutton near Brentwood to do the work for me as having read plenty on here they have got a fairly solid reputation....all be it a little expensive.
Any further comments greatly much appreciated.
Cheers
As I said i'm not displeased with the vehicle, who would be it's a fantastic bit of kit, I just feel maybe some minor adjustments may make a slight difference to the perkiness of the motor.
I was looking at Design 911 in Hutton near Brentwood to do the work for me as having read plenty on here they have got a fairly solid reputation....all be it a little expensive.
Any further comments greatly much appreciated.
Cheers
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