2016 Porsche Cayman GT4 - Carmine Red & Track-prepped - 40k in mods
For Sale2016 Porsche Cayman GT4
Jun 15, 2021, 06:36 PM | Replies: 30 | Views: 11742
Rennlist Member
Join Date: May 2018
Posts: 361
-
Price
$106,500• OBO
- Location Denver, CO, 80204, USA
- Condition Used
- VIN WP0AC2A88GK192021
- Mileage 9,000
- Engine 6 cyl
- Drive Type 2WD
- Transmission Manual
- Vehicle Type Hatchback
- Exterior Color Red
Description:
I am the 2nd owner of this fantastic track-prepped Carmine Red 981 GT4. This is a turn-key track car set up for any level of driver. It is registered and street legal and actually rides quite well if you turn the compression all the way down for street driving.
The only reason I am selling after only purchasing it 12 months ago is because I've been fortunate enough to be in a position to pull the trigger on a 991.2 GT3 that recently came up for sale (but not fortunate enough to own both at the same time). Otherwise, I would have continued down the upgrade path and probably ended up with a 4.5L beast.
The first owner was a PCA member in the Northeast and had the car serviced at Bodymotion who is well known for their experience running GT4 Clubsports in IMSA. That is to say, this car has an excellent service history and has been under the ownership of two experienced car/track enthusiasts with a no-expense-spared attitude toward the hobby. I have all of the service records and receipts on hand for interested buyers.
The car has obviously been tracked and about half of the odometer miles are track miles. I've only put about 1,400 miles on it over 5-6 track days and it has been obsessively maintained.
The body has a couple of small blemishes - one small ding above the windshield (dime sized, could be PDR'd) and one of similar size on the rear right quarter (also could be PDR'd).
I've done some of the work on the car myself and have entrusted Honest Assembly Garage here in Denver with any work that I don't have time for. The car has been fully set up (corner balance / alignment) and can run 1:56s at High Plains Raceway on street tires. My intention with this build was to build a light car with medium downforce with enough power to take advantage of the mechanical and aero grip. The car weighs in at 3130lbs with a half tank of gas in its current setup and makes over double the amount of stock downforce.
All decals will be removed prior to delivery to new owner.
Full disclosure:
The car did undergo a cylinder head replacement on Bank 1 (passenger side) last year due to the VarioCam adjuster bolts shearing on that side.
This is a well-documented issue on the 9A1 engines, and steel bolts have been installed to prevent this from happening again in the future. Bolt specs per BGB were used. See thread here: https://rennlist.com/forums/gt4-spyd...is-a-must.html
Porsche good-willed the repair (I was just a couple weeks out of warranty and they are aware of this issue), and in the process re-sealed the whole engine. The whole cylinder head assembly on Bank 1 was replaced (including cams, valvetrain, and VarioCam components) along with the valve covers on both sides. The car should be leak-free for a very long time, and I have put several hundred track miles on the engine without any issues at all. In fact, it makes a healthy amount of horsepower with the mods!
Transmission recall was done about 1600 miles ago, so the diff and trans are fresh.
The original owner spec'd the car as a driver's car -- minimal options for the lightest weight outside of PCCBs which are not desirable for track use.
Prod Month: 2016-04-01
VIN: WP0AC2A88GK192021
Price: $94,950.00
Exterior: Carmine Red
Interior: Partial Leather with Alcantara® Black (Stitching
BASE Cayman GT4
085 Fuel tank 64-litre
0L Carmine Red
28 Leatherette with alcantara, Black (stitching in Platinum Grey)
509 Fire Extinguisher
643 Sport Chrono Package incl. Porsche Track Precision App
802 Wings in Black
P11 Lightweight Bucket Seats
Here is the mod list:
Engine:
718 GT4 Clubsport Intake plenum/runners/low profile starter
BMC Air Filters
Dundon Race Headers
Dyno tuned remotely by PE Tuned in Chicago, IL - 423whp / 315 wtq – 50whp over stock
Added additional factory 9A1 heatshields for ignition coil longevity
VarioCam bolts replaced with steel units
Suspension:
Adjustable Shocks: 981 JRZ RS Pro Sport 2 way adjustable with remote canisters Front and Rear
650lbs/in Front and 750 Rear, Eibach springs
JRZ Adjustable front and fixed rear camber plates
RSS Rear adjustable toe links
Tarrett Solid Front Thrust Arm Bushing
RSS Camber shims for front/rear control arms
Interior/Safety:
BBi StreetCup Roll Bar in flat black
Steering wheel swapped to 991.2 GT3 unit with red 12 o'clock marker with black inserts and trim (this is how it comes on the 718 GT4)
Schroth Profi II harnesses, driver/passenger
Cantrell Motorsports submarine belt bar
Rennline harness anchors
Rennline aluminum floor pans in black
OE Radio delete bin
Wheels/Brakes:
OE Satin Platinum 20" wheels with Yokohama A052 tires on them at about 40% life
Girodisc 2 piece rotors
Pagid RSL29 pads
Tarett Brake Caliper Stud and bolt kit
AutoQuest Titanium brake caliper piston insulator pucks
SS Braided Brake Lines
MSI Wheel Studs and Black Phostate lug nuts
Coolant Tank:
Upgrade from Stock Coolant Tank
Exterior:
DBJ 1450RS Rear wing
DBJ Canards
DBJ Front Splitter w/ reinforced mounts
DBJ Rear diffuser
PPF on front bumper, headlights, hood, fenders, lower rockers/side scoop, rear wing/end plates, partial rear bumper
Side Scoop Screens per Porsche Motorsports
Replaced tail lights with OE 981 GTS tinted/clear housings
OE Clear LED front sidemarkers
Original parts included:
Intake plenum / throttle body / runners / starter
Headers w/ cats
PASM suspension
Stock wing
Front diffuser duct inserts
Stock PCM head unit
Original side mirror glass1
I have another set of GT4 20" wheels in Gloss Silver with A052s on them that only have about 10 laps on them that would be $4000 additional.
I was also going to convert the car to be able to run 18" wheels for much broader tire options, so I have a set of 18" APEX EC-7R Forged wheels in gold that would go with the car for $2600.
I am located in Denver, CO.
No trades
$109,900 OBO
I am not in a huge hurry to sell and would like to see the car go to someone who can enjoy and appreciate the time and work that has been put into it. Also not looking to part anything out.
Please feel free to PM me with any questions.
Last edited by lawlence; Sep 8, 2021 at 05:49 PM.
Reply
Thread Starter
Rennlist Member
Joined: May 2018
Posts: 361
Likes: 71
From: Denver, CO / Belfair, WA
Thread Starter
Rennlist Member
Joined: May 2018
Posts: 361
Likes: 71
From: Denver, CO / Belfair, WA
425whp, although I do think the SAE compensation at elevation make the numbers a bit wonky and a bit inflated. The baseline and tune were done on two different DynoJet dynos here at around 5200ft elevation, and the baseline looked quite high to me as well. Based on feel alone, I think it's probably closer to 390whp on 91 at sea level, and a probably closer to 400 on 93 based on my experience at COTA.
It feels about as fast as a stock GT4 does at sea level at 5200ft and actual non-corrected dyno numbers showed as much, and we're at about 85% sea level density here, so roughly 15% gains which is in line with the stock power. I discussed this with my tuner and Dundon, and they agreed that atmospheric density generally scales linearly with power output.
The delta, however, is in line with the gains that people have found with a non-catted header and the 718 Clubsport intake (about 50whp peak and 25-40 wtq throughout the rev range, with wtq peak not changing much).
The intake helps with low end torque as well and you can really tell on the street. There were many places where holding 2nd or 3rd from a slow roll would bog the engine down, and that behavior was much improved after installing the intake. We were also able to scoop back most of the mid range torque that was lost through tuning (within 2-3 wtq), and as you can see, the gains on the top end are huge.
It feels about as fast as a stock GT4 does at sea level at 5200ft and actual non-corrected dyno numbers showed as much, and we're at about 85% sea level density here, so roughly 15% gains which is in line with the stock power. I discussed this with my tuner and Dundon, and they agreed that atmospheric density generally scales linearly with power output.
The delta, however, is in line with the gains that people have found with a non-catted header and the 718 Clubsport intake (about 50whp peak and 25-40 wtq throughout the rev range, with wtq peak not changing much).
The intake helps with low end torque as well and you can really tell on the street. There were many places where holding 2nd or 3rd from a slow roll would bog the engine down, and that behavior was much improved after installing the intake. We were also able to scoop back most of the mid range torque that was lost through tuning (within 2-3 wtq), and as you can see, the gains on the top end are huge.
Last edited by lawlence; Jun 15, 2021 at 11:56 PM.
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Verdad Gallardo
Rennlist Member
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Nothing left to be done here. I've done all the same mods except aero, CS runners, and the JRZs. Perfect track weapon setup. Under 10k too, which is a very good thing given how the market is trending for 981s.
The last horizon is *maybe* BGB short gearing. That would be the chef's kiss . . .
The last horizon is *maybe* BGB short gearing. That would be the chef's kiss . . .
Thread Starter
Rennlist Member
Joined: May 2018
Posts: 361
Likes: 71
From: Denver, CO / Belfair, WA
In case anyone needs more convincing, here’s a good example of the exhaust note with the car on the dyno.
