991.2 Cobb Accessport, post your results
02-21-2020, 03:49 PM
#226
It's not limited to GTS... I have a base and encountered the same issue. My discussions with Cobb indicate that it's generally focused on the GTS, but they have seen even a few base and S's that have the same issue... fwiw, the base and S's did dyno a bit higher than their normal counterparts
Fancy PDK transmission comes with fancy new issues.
02-23-2020, 08:28 AM
#227
Rennlist Member
Thread Starter
So after yesterday I would say the seat of the pants meter I give stage 1 a 5. It seems more snappy and quicker with the power. Theres not really a WOW factor but it is noticeable, You can feel the beast of the this car on the verge of showing up. I will have time to try the stage 2 before I leave and will report back. BTW I still have the Sprint Booster (SB) pedal controller in place and it creates an even more responsive throttle, Lets just say its very snappy on the SBs sport mode. Race mode on the SB puts the car into a Sport plus mode holding the revs/shifts even though I only have it in Sport in the Chrono. I still think for short $$ the SB is a great mod that livens up the car without altering the ECU. @Robdokwon you might try the SB first before spending 1700. I have SBs in 3 of my cars right now, 17 911 4s, 18 Panamera Turbo and 19 Ram 1500.
The following users liked this post:
thesaintusa (02-23-2020)
02-23-2020, 11:09 AM
#228
So after yesterday I would say the seat of the pants meter I give stage 1 a 5. It seems more snappy and quicker with the power. Theres not really a WOW factor but it is noticeable, You can feel the beast of the this car on the verge of showing up. I will have time to try the stage 2 before I leave and will report back. BTW I still have the Sprint Booster (SB) pedal controller in place and it creates an even more responsive throttle, Lets just say its very snappy on the SBs sport mode. Race mode on the SB puts the car into a Sport plus mode holding the revs/shifts even though I only have it in Sport in the Chrono. I still think for short $$ the SB is a great mod that livens up the car without altering the ECU. @Robdokwon you might try the SB first before spending 1700. I have SBs in 3 of my cars right now, 17 911 4s, 18 Panamera Turbo and 19 Ram 1500.
Nice to hear that you are happy.
Curious to know how the Sprint Booster 'tricks' the car into holding a gear longer preventing/delaying the upshift.
I like a linear throttle pedal, and when I had a tune on my C63 specifically asked for the changes in throttle mapping to not be included on my tune.
02-23-2020, 11:58 AM
#229
Three Wheelin'
I’m having a hard time understanding why anyone would want to stack hyper throttle and a tune together.
The Porsche throttle is crisp out of the box. I can see using a sprint booster on a Tahoe, raptor, or big suv/truck with a delayed throttle. But on the 911 with a tune? You must be at full throttle 1/4 press of pedal?
I remember Bmw turners use to change the throttle pedal mapping and I hated it. Because it gave a false sense of tune speed increase.
I don’t know if the Cobb tune alters the throttle Pedal mapping. But if it does. I would not want a sprint booster on top.
In my Bmw tune experience that’s just way too much hyper throttle for me.
The Porsche throttle is crisp out of the box. I can see using a sprint booster on a Tahoe, raptor, or big suv/truck with a delayed throttle. But on the 911 with a tune? You must be at full throttle 1/4 press of pedal?
I remember Bmw turners use to change the throttle pedal mapping and I hated it. Because it gave a false sense of tune speed increase.
I don’t know if the Cobb tune alters the throttle Pedal mapping. But if it does. I would not want a sprint booster on top.
In my Bmw tune experience that’s just way too much hyper throttle for me.
The following users liked this post:
Trapperj (03-16-2020)
02-23-2020, 12:48 PM
#230
Rennlist Member
Join Date: Jul 2001
Location: Marineland FL
Posts: 12,511
Likes: 0
Received 3,434 Likes
on
2,348 Posts
So after yesterday I would say the seat of the pants meter I give stage 1 a 5. It seems more snappy and quicker with the power. Theres not really a WOW factor but it is noticeable, You can feel the beast of the this car on the verge of showing up. I will have time to try the stage 2 before I leave and will report back. BTW I still have the Sprint Booster (SB) pedal controller in place and it creates an even more responsive throttle, Lets just say its very snappy on the SBs sport mode. Race mode on the SB puts the car into a Sport plus mode holding the revs/shifts even though I only have it in Sport in the Chrono. I still think for short $$ the SB is a great mod that livens up the car without altering the ECU. @Robdokwon you might try the SB first before spending 1700. I have SBs in 3 of my cars right now, 17 911 4s, 18 Panamera Turbo and 19 Ram 1500.
02-23-2020, 01:08 PM
#232
Rennlist Member
Join Date: Jul 2001
Location: Marineland FL
Posts: 12,511
Likes: 0
Received 3,434 Likes
on
2,348 Posts
02-23-2020, 04:06 PM
#233
Just go part throttle, but the extra power is there if you want it.
02-23-2020, 04:23 PM
#234
I’m having a hard time understanding why anyone would want to stack hyper throttle and a tune together.
The Porsche throttle is crisp out of the box. I can see using a sprint booster on a Tahoe, raptor, or big suv/truck with a delayed throttle. But on the 911 with a tune? You must be at full throttle 1/4 press of pedal?
I remember Bmw turners use to change the throttle pedal mapping and I hated it. Because it gave a false sense of tune speed increase.
I don’t know if the Cobb tune alters the throttle Pedal mapping. But if it does. I would not want a sprint booster on top.
In my Bmw tune experience that’s just way too much hyper throttle for me.
The Porsche throttle is crisp out of the box. I can see using a sprint booster on a Tahoe, raptor, or big suv/truck with a delayed throttle. But on the 911 with a tune? You must be at full throttle 1/4 press of pedal?
I remember Bmw turners use to change the throttle pedal mapping and I hated it. Because it gave a false sense of tune speed increase.
I don’t know if the Cobb tune alters the throttle Pedal mapping. But if it does. I would not want a sprint booster on top.
In my Bmw tune experience that’s just way too much hyper throttle for me.
i prefer to control the throttle with the right pedal, and dislike when throttle pedal mapping is altered to make the car seem more 'peppy/powerful'.
Curious to know what COBB does, but I have no doubt that even an OTS Cobb tune will make a big difference.
Want to see how the APR tune treats the GTS.
02-23-2020, 05:54 PM
#236
Rennlist Member
Join Date: Jul 2001
Location: Marineland FL
Posts: 12,511
Likes: 0
Received 3,434 Likes
on
2,348 Posts
The following users liked this post:
B Russ (02-23-2020)
02-23-2020, 05:59 PM
#237
02-23-2020, 06:41 PM
#239
03-06-2020, 06:27 PM
#240
I have a 17 4S, PDK I did the stage 1 93 yesterday. Put about 150 miles on it since and so far its not an Oh **** moment by any means. The power is linear and is strong through the range but Its really hard to quantify in this car since its a very quick car stock. Were getting into difficult territory here with cars that exceed the speed limits in seconds to begin with. Im not sure how much more pull I need in this car but will drive this stage 1 for a while then try the stage 2. Only problem is Im with the car for a week then away from it for 2 so it becomes difficult to compare when I come back. Im also comparing it to my 4.0 Turbo Panamera that is a major beast with 20 lbs of boost stock and tons of pull.
Car feels maybe a bit more responsive, but ultimately not even sure I would be able to tell in a blind test where I didn't know which tune was loaded.
My dyno numbers pretty much back that up.
Run 1: Cobb Stage 1 - 93 octane in Sport Plus
Run 2: Cobb Simulated Stock in Sport Plus
Run 3: Cobb Stage 1 - 93 octane in Sport Plus
Long term I'll consider high flow cats and a pro tune, but if there are any other stock S's owners out there, I'd lower your expectations if you're buying an Access Port.
I'd highly recommend Base owners get an AP. A friend with a C2 Base PDK running Stage 2 93 octane map topped my dyno numbers by a bit, and it was night and day versus his stock numbers.
