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Old 14th September 2011, 03:55 PM   #121 (permalink)
JoeGr is working on 2012 EDM support
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Great stuff Cobb, rapid progress, any luck with getting tp/cc working yet??
Will and I are working on it.

Joe
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Old 14th September 2011, 05:22 PM   #122 (permalink)
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Off topic, apologies...how long until the MY11 timing code is working, ie not using previous years code?

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Old 14th September 2011, 05:32 PM   #123 (permalink)
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Off topic, apologies...how long until the MY11 timing code is working, ie not using previous years code?

Anders
It's in the ALPHA software that Will and I sent to the tuners yesterday.

Joe
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Old 14th September 2011, 08:56 PM   #124 (permalink)
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It's in the ALPHA software that Will and I sent to the tuners yesterday.

Joe
Nice one
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Old 14th September 2011, 09:32 PM   #125 (permalink)
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Will and I are working on it.

Joe
Great Stuff Joe, can't wait
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Old 14th September 2011, 10:35 PM   #126 (permalink)
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The boys at COBB have been busy and have released a TCM update for us AP NIS006 owners.

This ALPHA release allows 2009/2010 GTRs to flash their transmission (TCM) to use the 2011 model software.




My 2009 EDM has had some frustrating TCM quirks which were..

- Transmission R mode would be disengaged whenever the driver flipped form Manual to Auto, or vice-versa.

- Low speed bunny hopping in 1st gear.

- Low speed gear choice is frustratingly slow. Way too slow to engage 1st gear at low speeds.

- Downshifting through the gears was laboured and never dropped quick as I needed when shifting down to 2nd from higher gears. Always seemed to plonk me into 3rd when 2nd was needed.

- My 3rd gear clutch slippage had meant I'd adjusted my touch points and capacities to +1 to negate this, albeit with the increase in snatchy gear shifting which came with it.


Well I updated my TCM to this modifiied software and I am very, very impressed. I can see why Clarkson thought the gearbox was new on the 2011 models. All of my annoyances are now gone!

- R mode stays, whever I'm auto or manual. Nice.

- Low speed bunny hopping is no more.

- Trans changes to 1st gear at 3mph now rather than 0mph as before. Doesnt sound like a lot, but boy what a difference at junctions.

- Downshifting is a revelation. Snappy quick changes, and if I pull that paddle 3 times, I get 3 gear changes now. Brilliant!

- I've reset all my points to 0 and there is no clutch slippage at all, especially in 3rd gear.

- Even upshifting is silky smooth. No snatchy changes now.


All in all, COBB better get this out as an official update asap. Those of you with NIS006 APs are gonna want this.

In fact you need this.


I shot a quick video of the launch RPMs but I havent launched myself as the roads around me have been way to busy for burning up tarmac!

My big, big thanks to the COBB team. This is what the AP is all about.


LOL, at last - youv'e got what I have always had !!!!

Well done Cobb, but I bought a car with a LC at 4,500 from the factory !!!
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Old 14th September 2011, 10:39 PM   #127 (permalink)
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Thanks,

We've got to get the clutch learning sorted, then we'll move it from ALPHA to BETA and release.

Joe
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Old 14th September 2011, 10:53 PM   #128 (permalink)
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LOL, at last - youv'e got what I have always had !!!!

Well done Cobb, but I bought a car with a LC at 4,500 from the factory !!!
......and the potential for wheel hop and a shagged transmission Steve.

LC4 found on MY2011 cars is a completely different animal to LC1 on Jap cars and has a very refined algorithm to keep stress on tranny internals to a minimum.

It's not about launch revs, but how the clutches engage along with boost control.

So Steve, we have something you do not have - 3 years of Nissan's work on improving the TCM logic and now happily installed on 2009 EDM cars.

Get Iain at Litchfields to install you a TCM update and you'll really see what the fuss is about.
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Old 14th September 2011, 10:59 PM   #129 (permalink)
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OK I'll have a word with Iain, but I don't feel and never have had a need to launch my car, even when I was invited to Wings & Wheels and got the award of the day for the fastest car up the Dunsfold (Top Gear) Runway.

But fuss away and I will find out ! LOL
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Old 14th September 2011, 11:05 PM   #130 (permalink)
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OK I'll have a word with Iain, but I don't feel and never have had a need to launch my car, even when I was invited to Wings & Wheels and got the award of the day for the fastest car up the Dunsfold (Top Gear) Runway.

But fuss away and I will find out ! LOL
Probably should add that I'm not arsed about LC too but COBB is really trying to get LC working without VDC for the big power guys mainly in the US who, as we know, love a drag strip!

It's the improvement in all round manners of the transmission that is a huge step forward for me. Daily driving is now so smooth and refined.

I cant wait to get on track with it tbh as changes up and down are now super sweet.

Whether you get the update with Cobb or Ecutek bothers me not, the more competition the better as far as I'm concerned, but seriously get your TCM updated and you'll never look back.
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Old 14th September 2011, 11:10 PM   #131 (permalink)
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LOL same hymn sheet then as the drag queens don't do anything for me either.

OK when she next goes for "some work" I will investigate the TCM update

Cheers

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Old 15th September 2011, 08:03 AM   #132 (permalink)
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Ok looks like we are getting close. A couple of questions for Joe, or Thistle or anyone else that knows?

1) Can you explain the difference between how LC4 launches and the previous launch systems? I am assuming that 1 to 3 are similar but with differing revs / clutch engagement agressiveness?

2) Having used the Level 2 3750RPM launch at Brighton I have to say it was very impressive. No wheel spin or hop, and although the G was impressive it did not feel harsh.

So my question. Once the alpha is installed is it still possible to load this launch map, or can only LC4 be used with it now?


3) Has anyone compared the Level 2 3750RPM to the LC4. Putting aside kindness to the car, are they similar in performance or has one got the edge over the other.

4) Ok so the gear changes are very smooth but has anyone checked that they are just as fast? Smooth is good, but fast is better.

Finally, in case anyone doubts the value of Launch Control here is a graph of 3 launches at Brighton.




Speed on the left scale & G on the right.

Green was my Top 6 run in the wet using RRR & just coming off the brake & flooring it. 11.68 seconds

Blue is The second run, slightly damp, RROff so only let the revs rise to around 3000 RPM before launching. 11.35 Sec, 2.06 64Ft,

Red was my practice run, dry RROff ( Unfortunately I did not log the best 10.98 run) Launched at around 3500 RPM. 11.03 Sec 1.9 ec 64 Ft.

You can see that on this run there is G in excess of 1 for about 1.5 seconds


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Old 15th September 2011, 08:28 AM   #133 (permalink)
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Also do we know if the MY11 update for 09/10 cars carries over the Economy mode or does it maintain the Snow mode they came with from factory?
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Old 15th September 2011, 09:22 AM   #134 (permalink)
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Also do we know if the MY11 update for 09/10 cars carries over the Economy mode or does it maintain the Snow mode they came with from factory?
Good question!

I really like Snow mode. Made the car safer than an SUV in the snow and helped when it was reluctant to reverse gently up an incline (although hopefully that won't be an issue with the new software anyway).

Eco map can be one of the switchable maps.
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Old 15th September 2011, 09:28 AM   #135 (permalink)
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The 2011 has different engine economy maps which it uses when you select Save mode. You need to add these maps to the 09/10 ecu to get the same changes as well.
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Old 15th September 2011, 09:40 AM   #136 (permalink)
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The 2011 has different engine economy maps which it uses when you select Save mode. You need to add these maps to the 09/10 ecu to get the same changes as well.
How easy is that to do, or would it just be simpler and as fuel efficient to use your ECO map?

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Old 15th September 2011, 09:49 AM   #137 (permalink)
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would be best of both worlds to retain snow mode and have access to your economy maps through your map switching
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Old 15th September 2011, 10:51 AM   #138 (permalink)
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would be best of both worlds to retain snow mode and have access to your economy maps through your map switching
Think this is what I have now!

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Old 15th September 2011, 11:07 AM   #139 (permalink)
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Dave, you coming to play in that slow ol car of yours at CC on the 4th Oct ?

Did send you a txt !!! you might have some real competition as I may get the R 33 back and bring that out to play !
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Old 15th September 2011, 12:48 PM   #140 (permalink)
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LC4 lol


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