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Old 20th June 2016, 10:26 AM   #1 (permalink)
-SeanS is burning petrol like there's no tomorrow!
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Smile New Owner - 1st GTR

Hi All

Just last week agreed a deal on my first GTR! It's 2012 Daytona Blue GTR running an SVM Stage 4.25 tune with 16k miles. I was meant to pick it up on the 18th but the dealer messed up (long story) which means I've now got a long wait until next Saturday

Counting down the days!
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Old 20th June 2016, 11:29 AM   #2 (permalink)
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The day will arrive soon enough

Hope you enjoy it, 4.25 is a good stage, but remember, modding is a slippery slope and even worse in the GTR You will soon be saying "but I need 1000hp!!!"
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Old 20th June 2016, 11:37 AM   #3 (permalink)
-SeanS is burning petrol like there's no tomorrow!
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The day will arrive soon enough

Hope you enjoy it, 4.25 is a good stage, but remember, modding is a slippery slope and even worse in the GTR You will soon be saying "but I need 1000hp!!!"
Hahah you're telling me! I've already been looking at what mods to do and I haven't even picked her up yet.

I'm sure the power will be enough for me, the most I've ever had is 230hp in my daily driver so will be quite a jump
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Old 20th June 2016, 12:02 PM   #4 (permalink)
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230bhp to 640bhp....... without sounding patronising, be careful dude.

Performance mod wise there isn't anywhere to go now that wont cost you £10's of thousands!!

Saturday will come around plenty quick enough
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Old 20th June 2016, 12:27 PM   #5 (permalink)
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230bhp to 640bhp....... without sounding patronising, be careful dude.

Performance mod wise there isn't anywhere to go now that wont cost you £10's of thousands!!

Saturday will come around plenty quick enough
Thanks, no offence taken I certainly intend to take it steady for a while whilst I get used to the car.

Mods wise you're right and short of maybe switching to ecutek from COBB I don't really plan on doing anything performance orientated. My plans are mainly subtle cosmetic things such as the MINES steering wheel etc
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Old 26th June 2016, 08:41 AM   #6 (permalink)
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Had a great time yesterday collecting the car from Scotland. Tested the car in the dry and some fairly heavy rain and was extremely impressed with how capable and planted it is, especially in the wet considering the power it has. Nothing prepared me for how fast it feels, it's utterly savage!

One thing that I'm watching that I'd appreciate your thoughts on is in third gear when I'm approaching about 5500rpm, I've had a sudden drop/cut in the power 3 times. The first couple times I assumed it was just a traction issue however not once did I get the ESP light flash up. I've read of problems with the boost cutting off due to overboosting but I'm not very technically minded so I'm not sure! Does anyone have any ideas? I didn't get the COBB handset with the car so can't do any data logs etc either.

Here's a pic just before I set off

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Old 26th June 2016, 10:00 AM   #7 (permalink)
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Could be anything causing a dip in power, if it was fuel cut due to over post it would feel like you were being punched through the back of your head and out of the windscreen, fuel cut is brutal lol

Get the boost gauge on the MFD and watch it on a third gear pull (in a straight obviously)

Find someone with a Cobb near you to log it or swap out to ecutek...... The Cobb is useless without the handheld and the handheld is useless without this car as it clearly hasn't been unpaired properly lol

Car looks lovely!!
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Old 26th June 2016, 07:01 PM   #8 (permalink)
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If your car was mapped recently with cobb it will have safety parameters built into the map ie knock / stft / etc - it will go into a safe mode until you back off - think its less than 5% throttle - it will then reset and go back to full power - the map will need tweaking - also check if the unit is in the floor panel by the passenger seat - makes no sense for someone to keep it
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Old 26th June 2016, 11:09 PM   #9 (permalink)
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Personally I would swap it to an ecutek set up and book it for some dyno time so they can mapped it fully bespoke for your car with clear before and after.
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Old 26th June 2016, 11:55 PM   #10 (permalink)
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Personally I would swap it to an ecutek set up and book it for some dyno time so they can mapped it fully bespoke for your car with clear before and after.
What he said, Change to Ecutek and get it mapped by a tuner

#Bestcolour though I have the same MY12 in Daytona Blue Welcome to the club

You can even ask them for goodies such as pops and bangs, flames, Rolling launch etc ;-) Ecutek is where it's at unless you want to go silly bhp
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Old 27th June 2016, 06:32 AM   #11 (permalink)
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Each to their own - would it be worth the cost of a licence then dyno time then £300 for gearbox software to swap over -would be more cost effective to tweak safety parameters thats if the op can get the accessport

Agree nice car and the best colour
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Old 27th June 2016, 06:35 AM   #12 (permalink)
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Why would people offer advice to swap to Ecutek when there is a Cobb on it? Doesn't make sense where most talk about their own personal preference.

Get the car to SVM and have them diagnose it and look at getting a used hand controller so things can be fixed on the fly. It could be down to a number of things ie base map install which needs updating via a quick cobb flash via the internet/etc. If there are no codes then look at getting a hand tuner and downloading one of the updated maps online. Even could be a vac leak at any rpm or an IC leak, who knows until someone takes a quick look at it.

I have ecutek also but would much prefer the hand tool to self diagnose things instead of hooking up a laptop, as a new owner don't be swayed by the loyalty to a single brand is my advice. I would much preferred to have all options available to me when I took mine to 4.25 instead of sticking with a single tuning tool.
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Old 27th June 2016, 07:45 AM   #13 (permalink)
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I really do think a lot of people would prefer the ease of use of the new cobb accessport if they actually tried one ( everything is at hand on the dash ) -cobb does not get pushed over here.I think there is more profit for the tuners with ecutek but thats another story
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Old 27th June 2016, 03:34 PM   #14 (permalink)
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Thanks for the comments guys. I did a quick few runs earlier on in the bone dry and I'm lead to believe this is a traction issue. The car is running a 275/305 MPSS setup at the minute and I've seen the ESP light kick in a few times during pulls on a bone dry surface in 3rd gear, which depending on the way you look at it is/isn't surprising. Obviously it's got a lot of power but I would have thought the huge tyres would get it down in the bone dry on a 3rd gear pull. Equally at other times, I still get the drop in power with no ESP light, but it is the same feeling of the ESP limiting the power. As I say I'll keep an eye on this and experiment with the suspension settings also to see if that helps, perhaps VDC in R mode will prevent the traction control kicking in too prematurely?

One thing I would say is it can feel very squirrely/bouncy when you push on, to the point where it can become a little scary on an A/B road even at non-silly speeds. You certainly have to be switched on with this thing as it's pretty full on!

Re the COBB map, I did chat with the previous owner earlier and he said it was the owner before him that had it tuned and he wasn't given the AP either. As it stands I may get it remapped in the near future but am undecided as to whether to switch to Ecutek. My thinking cost wise is, if I were to purchase a COBB AP I will need to get it remapped anyway won't I? As such by the time I'm done I may as well have paid for the Ecutek license etc. From what I've seen the Ecutek cars are making more power and have some nice features like rolling boost/pops and bangs etc - The big kid in me wants those
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Old 27th June 2016, 04:00 PM   #15 (permalink)
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This ones on COBB - has pops and bangs too


https://www.youtube.com/watch?v=nczHCdTg6CU
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Old 27th June 2016, 06:15 PM   #16 (permalink)
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If you can get hold of a handheld you might well need to map but you won't be pying for licenses etc, you get a handheld and remap for 500ish......

Personally I prefer the ecutek but that's just me.
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Old 27th June 2016, 06:58 PM   #17 (permalink)
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Tyres

People rave on about MPSS but I've found them very squidgy in fast corners
I'm now on Dunlop runflats and find them much more stable but with a lot more road noise
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