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LC 4 Software.

LC 4 transmission software.

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#1 neels Posted 12 January 2012 - 06:06 AM

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I am considering updating my LC 1 software on my 2008 JDM R35 to the LC4 software. I have done the Willall Racing upgrade on the transmission.
Has anyone upgraded their software from an older version to LC 4? Is it a good idea on an older model?
Thank you.


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Custom Targa Mid-pipe
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Willall 10W60 Engine oil
Jacks 800nm clutch (including welded baskets) and forward drive upgrade
Jacks transmission fluid
HKS transmission cooler

#2 JoeGr Posted 12 January 2012 - 09:52 AM

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It can be done, but you have to use the AccessPORT to do it. The EcuTek stuff can do it for you too. There are a number of users out there with the AccessPORT that are running LC4 on older GT-Rs and from I've heard they love it!

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#3 M O N S T E R Posted 12 January 2012 - 02:20 PM

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Does this mean that the LC4 is offered as an OTS map from Cobb?



#4 max_R35 Posted 12 January 2012 - 02:23 PM

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I believe it is still in Alpha stage, available to download but not available OTS


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View PostAMS, on May 18 2010, 04:52 PM, said:

We rarely are the first to market on the product but in our eyes we always produce the best product when we do finally release it :)

#5 Visconti Posted 12 January 2012 - 03:06 PM

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View Postneels, on 12 January 2012 - 06:06 AM, said:

I am considering updating my LC 1 software on my 2008 JDM R35 to the LC4 software. I have done the Willall Racing upgrade on the transmission.
Has anyone upgraded their software from an older version to LC 4? Is it a good idea on an older model?
Thank you.

Yes - many people have gone from LC1 --> LC4

Car drives around a lot smoother with LC4.

LC4 has launching back to back to back to back limitations - after 3 or 4 launchs you need to drive the car around for a mile.

Do some reading/searching and you'll see a lot of good feedback form people.

-John



#6 JoeGr Posted 12 January 2012 - 03:09 PM

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View PostJohn@TheShopCT, on 12 January 2012 - 03:06 PM, said:


LC4 has launching back to back to back to back limitations - after 3 or 4 launchs you need to drive the car around for a mile.
-John

We've taken care of that :)

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#7 Visconti Posted 12 January 2012 - 03:12 PM

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View PostJoeGr, on 12 January 2012 - 03:09 PM, said:

We've taken care of that :)

Joe

awesome!



#8 JoeGr Posted 12 January 2012 - 03:26 PM

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View Postmax_R35, on 12 January 2012 - 02:23 PM, said:

I believe it is still in Alpha stage, available to download but not available OTS
That is correct it is still in ALPHA testing until we finish adding the gear learning and touch point adjustments.

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#9 Dave@GotboostPerformance Posted 12 January 2012 - 04:39 PM

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View PostJohn@TheShopCT, on 12 January 2012 - 03:06 PM, said:

Yes - many people have gone from LC1 --> LC4

Car drives around a lot smoother with LC4.

LC4 has launching back to back to back to back limitations - after 3 or 4 launchs you need to drive the car around for a mile.

Do some reading/searching and you'll see a lot of good feedback form people.

-John

Yes LC 4 is much much smoother on take-off. I had to remove it and switch back to LC 2 because my clutches were slipping under hard acceleration. There is no way to adjust clutch capacities, so I feel it is very limited in cars with over 600wtq until gear learning and capacity adjustments can be made.


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#10 Church Posted 12 January 2012 - 06:15 PM

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View PostJoeGr, on 12 January 2012 - 03:26 PM, said:

That is correct it is still in ALPHA testing until we finish adding the gear learning and touch point adjustments.

And get the launch rpms down to 4100 AND get it to work on the 2010's.... right?

Edited by Church, 12 January 2012 - 06:15 PM.




#11 rutiger Posted 12 January 2012 - 06:40 PM

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View PostDave@GotboostPerformance, on 12 January 2012 - 04:39 PM, said:

Yes LC 4 is much much smoother on take-off. I had to remove it and switch back to LC 2 because my clutches were slipping under hard acceleration. There is no way to adjust clutch capacities, so I feel it is very limited in cars with over 600wtq until gear learning and capacity adjustments can be made.

how can you tell they're slipping?  as you know i'm making 600/600 and currently running the lc4 code.


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#12 Dave@GotboostPerformance Posted 12 January 2012 - 11:28 PM

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Ryan, I can hear it and feel it on full throttle shifts going into 3rd and 4th. It never did this until I loaded LC4.


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#13 neels Posted 13 January 2012 - 02:57 PM

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Thank you to everyone. This is very helpful.
I have a Cobb AP and after I had my transmission upgraded, they used it to reinstall the software (LC1) and adjust the touch points because the clutch packs aren't stock.
I may have to wait until touch points can be adjusted in LC4 before I upgrade.
Thans again.


2008 JDM R35
Cobb AP with Willall Tune
Custom Targa Mid-pipe
Willall Transmission Upgrade with Dodson Sensors , Dodson filter and Clips TSB
Willall 10W60 Engine oil
Jacks 800nm clutch (including welded baskets) and forward drive upgrade
Jacks transmission fluid
HKS transmission cooler

#14 Goonthree Posted 13 January 2012 - 04:38 PM

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One way is while in gear you hit fuel cut aka rev limiter because the clutch couldn't hold.  

View Postrutiger, on 12 January 2012 - 06:40 PM, said:



how can you tell they're slipping?  as you know i'm making 600/600 and currently running the lc4 code.




#15 CornedOutVR38 Posted 13 January 2012 - 06:29 PM

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Just so you guys know, you can adjust the touch points and clutch capacities with LC4. What you need to do first is uninstall and reinstall the Cobb AP; then load just the ECU map. Now you'll be able to adjust the TPs and CCs. And finally, you load the LC4 map. Works like a charm.


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#16 neels Posted 13 January 2012 - 08:06 PM

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Thank you very much!


2008 JDM R35
Cobb AP with Willall Tune
Custom Targa Mid-pipe
Willall Transmission Upgrade with Dodson Sensors , Dodson filter and Clips TSB
Willall 10W60 Engine oil
Jacks 800nm clutch (including welded baskets) and forward drive upgrade
Jacks transmission fluid
HKS transmission cooler

#17 neels Posted 13 January 2012 - 09:28 PM

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Does anyone know where the LC4 software can be obtained? Is it from Nissan or Cobb?


2008 JDM R35
Cobb AP with Willall Tune
Custom Targa Mid-pipe
Willall Transmission Upgrade with Dodson Sensors , Dodson filter and Clips TSB
Willall 10W60 Engine oil
Jacks 800nm clutch (including welded baskets) and forward drive upgrade
Jacks transmission fluid
HKS transmission cooler

#18 SCCAForums Posted 13 January 2012 - 10:24 PM

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Still waiting for LC4 for 2010... :(


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#19 Church Posted 13 January 2012 - 10:49 PM

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View PostCornedOutVR38, on 13 January 2012 - 06:29 PM, said:

Just so you guys know, you can adjust the touch points and clutch capacities with LC4. What you need to do first is uninstall and reinstall the Cobb AP; then load just the ECU map. Now you'll be able to adjust the TPs and CCs. And finally, you load the LC4 map. Works like a charm.

Not true….

Once you load the LC4 the CC and TP changes won't work anymore. It shows the values but they don't take effect. Try it, you will see.

Even if you set your CC and TP’s before you load the LC4 they will be overridden by the 2012 data.

There is still no way to adjust the settings with LC4 loaded.

2010 owner dreaming of a 4100 LC4 launch made possible by Cobb.



#20 Dave@GotboostPerformance Posted 13 January 2012 - 11:03 PM

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View PostChurch, on 13 January 2012 - 10:49 PM, said:

Not true….

Once you load the LC4 the CC and TP changes won't work anymore. It shows the values but they don't take effect. Try it, you will see.

Even if you set your CC and TP’s before you load the LC4 they will be overridden by the 2012 data.

There is still no way to adjust the settings with LC4 loaded.

2010 owner dreaming of a 4100 LC4 launch made possible by Cobb.

+1 this is true


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