08-06-2009, 06:10 PM
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#3 (permalink)
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Track Member
Join Date: Dec 2008
Location: Melbourne
Posts: 586
Drives: 370z Titanium 6MT
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Quote:
Originally Posted by frost
I don't want to sound like a conspiracy theorist, but with the "black box" tracking more and more of what we do every couple years, don't be surprised if you start seeing warranty issues denied due to not following their break in rules in the future.
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For sure...it's all about the dealer walking away from a claim = save money
Quote:
Originally Posted by In2Deep
An engine-builder friend once told me that over the first 1,000 miles
- Drive a new motor as you would normally around town
- For a performance engine -- run her through some higher rpm's every 75-100 miles, but not to redline. Ever. So, 10-12 run-throughts up through higher rpms within the first 1000 miles
- NEVER drive for a long period at the same speed (long trip) during this 1000 miles. but...
- take a 250 mile drive somewhere, on the freeway without stopping, and spend 10 minutes at a time holding various speeds, faster and slower. something like this.
10 mins at 55...then speed to....
60....10 minutes at 60...then speed up to...
70....10 minutes at 70...then slow to.....
55....10 minutes at 55...then speed up to...
75....10 minutes at 75...then slow to...
50....10 minutes at 50...then speed up to...
60....
Repeat.
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Thats exactly right, although it was more important for older engines that had crosshatched honed bores and not so perfect diameters. I am not sure about the laser finished bores these days. Nissan doesn't do things in halves, so their engine build quality will be up there with the best. They always run the engine on an engine dyno before it gets installed. By the time we get it, it's pretty right to drive hard.
Quote:
Originally Posted by mrrrkva
Also isnt Nissan VOIDING warranties in the GTR if the owner takes off the VDC during launches? Must be something in the black box
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Yep have seen it here in Oz. I think they have even changed the launch control firmware on Aussie GTR's to stop people launching them too hard.
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