Using my G-timer, which are generally fairly accurate ,these are some times I'm getting with the car. All performed in DS with VDC Off

0-60:
Fastest I've gotten is a 5.4 flat, but averaging more like a 5.45 to 60. Slowest was a 5.7 with quite a bit of wheelspin.
- Seems pretty accurate

1/4 Mile:
13.67 at 101.4
13.77 at 102.6
- These may be a tenth or two quick judging by what other people are recording with official time slips at drag strips. However, this may be the more correct time since the G-Timer officially starts timing when the vehicle begins to move

 

how are you launching your car? power braking or whatever its called (pushing the gas down to a certain rpm while brakes are engaged and then letting brakes go?)

 

i think with proper launch you can get to 5.2 secs on that 0-60 time.

 

yea i noticed that quicker times are with DS mode. what are you pullin with manual mode or D? i wonder what comparisons are.

 

That's also when the time starts ticking at the drag strip. Senses when the front wheels leave the line before timer starts ticking.

 

5.2 is with a 1 ft rollout, as per publications. More than easily possible.

1/4 mile times will increase as you get some miles on the car and the engine breaks in.

 

i was looking on myg37.com and they have a similar thread...however, the members there are posting 14.4 numbers for the 1/4...ouch

 

as far as mile how many miles are you refering this break in process?

 

Your engine will continue breakin process probably upwards of 10,000 miles and will continue to see performance changes in that time frame. From there it's generally a continual downhill struggle as compression slowly is lost throughout the engine's lifespan.

 

Are you sure? In the first VQ, think it was C&D that tested a '95 Maxima at delivery, then again at 40k miles. At 40k it was faster, due to engine broken-in, mufflers packed out, etc.

 

If they'd tested at delivery versus 10k miles they probably would have seen the same improvement. The breakin does take a few thousand miles but it's definately not going to take as long as 40k miles.

 

Yep, power braking to around 2k rpm I believe

 

The break-in period definitely isn't that long, but after that many miles - performance is improved. Check out the Car and Driver long term wrapup.
With 40k miles on their 6MT tester the 0-60 improved .1 and the 1/4 mile .2. Stopping distance increased a meager 3 feet and the handling remained at .89g.

I have just over 5K on my car.

I've only done a few launches, I'll try to get the 0-60 time down into the 5.3 range with power braking.

 

yeah, so you new g37 sedan owners don't even think about messing with us higher-mileage G's

 

In my experience, modern Japanese engines take at least 15k miles to break in.

My G35 continued to increase in power until it was Totalled at 39k miles.

My 2005 s2k continued to increase in power, even at 86k miles. I originally baselined it at about 1k, which had an increase before my second baseline at 10k, (fast forward NA mods, and then back to stock for a final baseline before going FI) and then at 35k before I went SC. Post SC, Post tune, I dynoed again at 60k, which had an increase over the original dyno. At 86k, the car was parted out, and I did a final dyno @ the buyer's request. This 'back to stock' NA dyno was higher than the final baseline at 35k before I went SC.

To my knowledge, the VQ takes a MINIMUM of 15k to fully break in, and will continue to gain power, possibly still gaining (although minimal) at 60k+

The NSX is one of the few cars with enough dynos, that shows 100k + mile cars dynoing higher than when new.