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Discussion Starter · #1 ·
Well spend the day with Sassy on the Dyno. 25 pulls over 8 hours.

At the wheels stock she was 335 hp and her 0-60 mph time was 4.1. Today we made 376 hp and 398 torque at the wheels and her 0-60 was 3.4. This was with a Soul Sport Down Pipe and COBB Pro Tune on a 2018 Cayman 718 S with the GTS center radiator installed. It seems we are at the limited with this platform unless we deal with the turbo, intercoolers.
 

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Thanks for the report. BTW, did you have to send your ECU in or have they eliminated that need yet? I have a base, but if I could get an additional 41 hp out of it on my rare track days, that would be a big help on the straight. I'd also want to add the Soul Sport Down Pipe also some day (does that take it to a level 2 tune?).
 

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No longer required. We can just send you an Accessport with one of our OTS maps and Pro-tune remotely :D

Thanks for the report. BTW, did you have to send your ECU in or have they eliminated that need yet? I have a base, but if I could get an additional 41 hp out of it on my rare track days, that would be a big help on the straight. I'd also want to add the Soul Sport Down Pipe also some day (does that take it to a level 2 tune?).
 

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Discussion Starter · #5 ·
Thanks for the report. BTW, did you have to send your ECU in or have they eliminated that need yet? I have a base, but if I could get an additional 41 hp out of it on my rare track days, that would be a big help on the straight. I'd also want to add the Soul Sport Down Pipe also some day (does that take it to a level 2 tune?).
No longer required to send in ECU. From my experience and knowledge gain from having my car on the Dyno in stock and modified I don’t believe you will see a Stage 2 tune for these cars. From talking to Adam we are pretty well at the limit with this platform as is.
 

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Well spend the day with Sassy on the Dyno. 25 pulls over 8 hours.

At the wheels stock she was 335 hp and her 0-60 mph time was 4.1. Today we made 376 hp and 398 torque at the wheels and her 0-60 was 3.4. This was with a Soul Sport Down Pipe and COBB Pro Tune on a 2018 Cayman 718 S with the GTS center radiator installed. It seems we are at the limited with this platform unless we deal with the turbo, intercoolers.
Thanks for the report. Sounds reasonable, except the 376 RWHP you’ve got with downpipe and custom tune is the limit. I hoped to reach 10-15 more in my build.

Can you please clarify what is the gas (91/93) you use and what was the original tune you’ve started the protune? Was it v2.00 or still the v1.xx you mentioned in another post?

Also I will appreciate if you confirm what is the kind limitation you’ve cane to... boost pressure with stock turbo?
 

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Discussion Starter · #10 ·
Thanks for the report. Sounds reasonable, except the 376 RWHP you’ve got with downpipe and custom tune is the limit. I hoped to reach 10-15 more in my build.

Can you please clarify what is the gas (91/93) you use and what was the original tune you’ve started the protune? Was it v2.00 or still the v1.xx you mentioned in another post?

Also I will appreciate if you confirm what is the kind limitation you’ve cane to... boost pressure with stock turbo?
Here in Canada we can get 94 Octaine gas, most of the performance crowd use this fuel. My accessport came with the old v1.03 and I was using this when I got my 3.5 0-60 time. I then realized there was an updated version v2.00, I also notice on COBB site was a note about Canadians using 94 Octaine that we should be on the v2.00 91 tune.

I am not an expert in this so have ask the tuner if he could write something about his experience with tuning my car, he is really busy at the moment so not sure, but he did about 25 pulls on the Dyno plus the ones we did last year in stock form. What my understanding is and I need to talk more with him about this was boost level we’re were having knock issues that I believe why he cut back the boost. When I talked to him about were we go from here for more power is we need to look at bigger turbo, inter coolers and to deal with the heat possibly with Meth / water injection. From talking to the tuner heat is a big issue. I am comfortable with the tuner, they build and run a 8 second Toyota, AFR Autoworks, are on Facebook etc.

He did mention he possibly could have gotten a bit more but thought wise not too. It’s maybe possible I could have got more if I went with maybe a catless downpipe and straight pipe exhaust, I don’t really know?

Hope this helps.
 

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Here in Canada we can get 94 Octaine gas, most of the performance crowd use this fuel. My accessport came with the old v1.03 and I was using this when I got my 3.5 0-60 time. I then realized there was an updated version v2.00, I also notice on COBB site was a note about Canadians using 94 Octaine that we should be on the v2.00 91 tune.

I am not an expert in this so have ask the tuner if he could write something about his experience with tuning my car, he is really busy at the moment so not sure, but he did about 25 pulls on the Dyno plus the ones we did last year in stock form. What my understanding is and I need to talk more with him about this was boost level we’re were having knock issues that I believe why he cut back the boost. When I talked to him about were we go from here for more power is we need to look at bigger turbo, inter coolers and to deal with the heat possibly with Meth / water injection. From talking to the tuner heat is a big issue. I am comfortable with the tuner, they build and run a 8 second Toyota, AFR Autoworks, are on Facebook etc.

He did mention he possibly could have gotten a bit more but thought wise not too. It’s maybe possible I could have got more if I went with maybe a catless downpipe and straight pipe exhaust, I don’t really know?

Hope this helps.
Thanks. I use 94 also. Same worries about that note, but in fact, when tried my logs were perfect on Stage 1 v2.00. Almost no knock at all in WOT conditions. Only partial throttle which is OK. The performance diff was noticeable. 91 tune reduced my 0..124mph from 10.4 to 10, then 93 map cut another 0.4s to 9.6s. And it is very stable.

The good thing about v2.00 is COBB found most likely same tables as APR found which helps to increase cooling by internal ventilator and keep heat under control much longer. My car never exceeded 115*C so far during aggressive road runs.

Also I’m going to have 2 tunes: one more conservative for track, another - more for several drag/roll-on pulls in normal real road conditions. For last wine with 94 I hope to get 385-390rwhp with stock turbo bit with downpipe.

BYW, it would be amazing if you can measure 1/4 with your setup and 0..124mph or 120..
 

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Well spend the day with Sassy on the Dyno. 25 pulls over 8 hours.

At the wheels stock she was 335 hp and her 0-60 mph time was 4.1. Today we made 376 hp and 398 torque at the wheels and her 0-60 was 3.4. This was with a Soul Sport Down Pipe and COBB Pro Tune on a 2018 Cayman 718 S with the GTS center radiator installed. It seems we are at the limited with this platform unless we deal with the turbo, intercoolers.
I know this is an old thread but did you have fans of some sort blowing into the heat exchangers in the 1/4 panels of the car? Those are the primary coolers for the air to water intercooler. You may already know that but I seen a few dynos where people just have a fan on the front radiators. That will cause heat soak for sure on a Dyno.
 
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