COBB Access Port for 718 - Porsche 718 Forum
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post #1 of 29 Old 06-12-2018, 06:41 PM Thread Starter
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COBB Access Port for 718

PORSCHE 718 BOXSTER / CAYMAN POWER GAINS
Base models of the 718 Boxster and Cayman utilize a turbocharged 2.0L motor. The factory boost levels of around 20.3 psi is good for a rated 300 HP and 280 TQ. That translated into 301 HP and 303 TQ to the wheels for recorded baseline dyno runs. Our Stage 1 Off The Shelf Map is good for 346 HP and 326 TQ on 93 octane fuel. As you can see in the chart below, a power increase is realized across the entire power band.



PORSCHE 718 BOXSTER S / CAYMAN S POWER GAINS
The 718 S model cars get a nice bump in power over base cars, utilizing a VTG style turbocharger seen on the 911 Turbo which feeds boost to a 2.5L motor producing a 350 HP and 310 TQ rating. The more efficient motor is able to produce that power at a lower boost level than the base model cars, only utilizing 15.9 psi to achieve a measured baseline of 338 HP and 318 TQ. On 93 octane fuel, the COBB Stage 1 Off The Shelf Map produces 355 HP and 360 TQ to the wheels, seeing peak gains of over 17 HP and 41 TQ with no other changes. Boost is kept to around 19 psi as to not lean on the factory cooling system too hard.



PORSCHE 718 BOXSTER GTS / CAYMAN GTS POWER GAINS
The 718 GTS gets a slightly larger turbocharger than S model cars allowing power to hold out better up top where the S starts to fall off. Our test car spun the rollers to the tune of 345 HP and 328 TQ to the wheels in stock form. With a slight increase in boost pressure, we saw results of 378 HP and 353 TQ to the wheels. As you can see in the dyno graph below, power still holds on beyond 6000 RPM whereas the S above starts to see torque tail off due to the smaller compressor wheel.



MSRP is $1495. The initial release requires sending the ECU to COBB for 1 day and can then be reflashed any time by the owner or pro-tuner. We're including FREE overnight shipping both ways for a quick turn around.

Info on the COBB ECU Process.
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Last edited by [email protected]; 06-19-2018 at 11:39 AM.
post #2 of 29 Old 06-12-2018, 10:01 PM
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What are the estimated Pro Tune differences vs the OTS tune?
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post #3 of 29 Old 06-12-2018, 10:18 PM Thread Starter
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What are the estimated Pro Tune differences vs the OTS tune?
If there's an OTS map pro-tunes aren't going to make huge gains. COBB tunes very safely with their OTS maps and you typically have a Low Waste Gate->Normal->High Waste Gate map. They pretty much do what you'd expect; LWG runs less boost and HWG runs more boost than normal. This gives the end user a little wiggle room to compensate for altitude, temperature and aggressiveness. For example on my 2011 STI I ran a COBB Stage 2 (turbo back exhaust and tune) with a LWG 91 octane map. I did this because I tracked the car 30 days a year and wanted more power but also the highest safety margin I could get. Would a 93 Oct HWG make more power? YES. I didn't care. So these decision are all in your or your tuners hands. That being said where we suggest pro-tuning is with non standard mods or for higher octane fuels. If you're going to run 104 octane at the track we can take full advantage of that and make some power.


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post #4 of 29 Old 06-16-2018, 04:54 PM
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How much would it be with the flash loader? Or is that included in the price? I am deploying and will be having a friend who is “babysitting” my car mail out my ecu. I am going to do a downpipe at the same time, if that is an available option yet.

2017 Graphite Blue 718.
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post #5 of 29 Old 06-18-2018, 01:09 PM Thread Starter
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How much would it be with the flash loader? Or is that included in the price? I am deploying and will be having a friend who is “babysitting” my car mail out my ecu. I am going to do a downpipe at the same time, if that is an available option yet.
Everything is included for $1495 with free overnight shipping both ways. We do offer a 15% military discount..


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post #6 of 29 Old 06-18-2018, 08:04 PM
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Cool. I’ll be in touch when I’m ready to do it. Thanks!
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post #7 of 29 Old 06-19-2018, 11:39 AM Thread Starter
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Added link for COBB's ECU process.


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post #8 of 29 Old 06-19-2018, 02:09 PM
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Nice that Cobb isn't trying to blow smoke by saying the dealer can't detect this mod. Kudos !!

Peter
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post #9 of 29 Old 06-19-2018, 04:49 PM
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Quote:
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Nice that Cobb isn't trying to blow smoke by saying the dealer can't detect this mod. Kudos !!

Peter
I agree.
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post #10 of 29 Old 06-19-2018, 06:18 PM Thread Starter
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These are ready to go folks!!

Available here !!


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