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official 1/4 mile track times

Originally Posted by andre12031948 1) If you're shifting into 5th before the finish line, you are losing at least a 1/10th! Never go into 5th! 2) Find out if shifts

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Old 06-08-2012, 09:06 AM   #646 (permalink)
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Quote:
Originally Posted by andre12031948 View Post
1) If you're shifting into 5th before the finish line, you are losing at least a 1/10th! Never go into 5th!
2) Find out if shifts are quicker when driver shifts or when the car does the shifting(your shop/auto trans people). Use the quicker shifting method!
3) Factory nissan power peek is at 7,000 rpm. Car should shift/be shifted 300 to 500 rpm ABOVE H.P. peek. Example 7300 to 7500 rpm. The reason for that is that after every shift, the rpm drops. You DON'T want it to drop too low! Keeping the peek h.p. in the middle produces best results! As a bonus, it also keeps the car from going into 5th.
4) I don't know all your mods, but if you have after market exhaust plus other mods, your H.P. peek is no longer at 7000 rpm. It could be 7300 to 7500 rpm range. Now you or your shop should correct/change the shifting into the 7500 to 7800 rpm range.
It is pretty good advice for most people that arent aware of how their powerband works. I've yet to take my car to the track since my tune, but I can tell you this, at 7600-7700 it was still making power on the dyno. So I will be shifting around 8k, at least for one run
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Old 06-08-2012, 07:25 PM   #647 (permalink)
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Nice runs!

Is your Z a base or touring? sport package?

And could you post a higher resolution pic of the time slip?

Quote:
Originally Posted by secondnissan View Post
Went to the track back at the end of april . Mods are M370 intake manifold, stillen gen 3 intake, and I ran with the hypertech stillen gen 3 tune. I ran the car 6 times. 3 times on the hypertech, followed by 3 times on the stock tune. The hypertech tune produced my fastest run of the day, but i only had two runs with perfect traction, and they were both on the hypertech tune. As the sun went down behind the tower the track conditions got bad. best hypertech run - 12.856 at 106.25 1.944 60 best stock tune run - 13.205 at 105.82 2.071 60 . Trap speeds were within .5 mph. I returned the hypertech programmer within the 30 day window as the gains were minimal.
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Old 06-08-2012, 07:27 PM   #648 (permalink)
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Originally Posted by gaveup View Post
It is pretty good advice for most people that arent aware of how their powerband works. I've yet to take my car to the track since my tune, but I can tell you this, at 7600-7700 it was still making power on the dyno. So I will be shifting around 8k, at least for one run
One thing to keep in mind: your tachometer might not be 100% accurate. I know mine is off by 200 rpm. at 8000 rpm mine reads 8200 rpm.
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Old 06-09-2012, 01:27 AM   #649 (permalink)
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my car is a touring non sport.

Blades - I run on the stock 18 inch wheels with stock yokohama tires. As for launching I just sidestep the brake and floor it quickly but smooth. I've tried bringing up the revs on the foot brake and then launching, but it doesn't seem to help my sixties. Then again I haven't tried pulling the brake fuse yet. I've got exhaust on order and I just bought a pair of drag radials for the track. I wind the tach all the way to redline every gear. It's hard to time the shift perfectly before the rev limiter. I can't stand the soft rev limiter in this car. Hard to tell you hit it until it's too late. If I hit the limiter then shift i get a thud and slower et's.

One quick - I'm not on chicagoz, never heard of it until now..haha. Havent been to any meets either, I'm out your way near Joliet. I've only had the car for a year now.
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Old 06-09-2012, 01:31 AM   #650 (permalink)
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Oh and blades... You have lowering springs correct? I think the reason you can't match your stock times are due to the springs. The increase in rear camber has got to kill traction.
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Old 06-09-2012, 01:28 PM   #651 (permalink)
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.4 out of a n/a tune is as good of a gain as you could ever expect. I wouldn't of returned it.

My best Time in my 6sp 12.92 was done on open diff. Lol

Seems base models always go .1-.2 quicker
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Old 06-09-2012, 11:48 PM   #652 (permalink)
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chuckd - best run on hypertech tune was at 33 psi. I decreased the tire pressure later in the day hoping for better traction. On the best mph stock tune I was at 28 psi ( more rolling resistance ) and the difference between tunes was 106.25-105.82 . Throttle response was better on the stock tune. Times were slower because I had more wheel spin on the stock tune runs. So even if hypertech gave me 6 hp or so...which I really dont believe, the car drove better on the stock tune. Plus I got my money back and may use it for uprev.
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Old 06-10-2012, 12:12 AM   #653 (permalink)
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updated the rankings, secondnissan you go the #3 spot now.
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Old 06-10-2012, 12:29 AM   #654 (permalink)
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Quote:
Originally Posted by secondnissan View Post
my car is a touring non sport.

Blades - I run on the stock 18 inch wheels with stock yokohama tires. As for launching I just sidestep the brake and floor it quickly but smooth. I've tried bringing up the revs on the foot brake and then launching, but it doesn't seem to help my sixties. Then again I haven't tried pulling the brake fuse yet. I've got exhaust on order and I just bought a pair of drag radials for the track. I wind the tach all the way to redline every gear. It's hard to time the shift perfectly before the rev limiter. I can't stand the soft rev limiter in this car. Hard to tell you hit it until it's too late. If I hit the limiter then shift i get a thud and slower et's.

One quick - I'm not on chicagoz, never heard of it until now..haha. Havent been to any meets either, I'm out your way near Joliet. I've only had the car for a year now.
Cool. Yeah I forgot that my camber is like .3-.4 degrees out more after I got my car lowered. Even so, I've gotten my 60' times down to 2.0x which is about 0.03 s away from my best.

I also haven't tried pulling the brake fuse and I probably never willl. I usually put my foot on the brake and rev up to around 1500-2000 rpm and simultaneously let go of the brake and floor it. I think I tried just holding the brake and not revving up once before, but it didn't help much. I'll have to try it again the next time I go.

I think tires are the main thing holding my times back. These all seasons just don't grip as good as a summer tire, but I'm still determined to get into the 12's with them. Just need to wait for a night with some low temps.
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Old 06-10-2012, 03:42 PM   #655 (permalink)
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Default 370z bolt on -11.99 112 mph

I'm seriously thinking of getting a 370Z & next spring trying for that magic 11.90 1/4 time(bolt on class).
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Old 06-10-2012, 04:38 PM   #656 (permalink)
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The Z is going to the track june 23.
only change will be art pipes
i have the new converter but the VB is not ready for the built tranney.
will install them at the same time. Too much money to install then sperately.
the SC goes on right after i run the tranney and new converter.

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Old 06-27-2012, 12:08 AM   #657 (permalink)
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I went to ATCO Raceway NJ tonight the best I could lay down was;

R/T .618
60' 2.193
330 5.833
1/8 8.787
MPH 83.76
1000 11.320

E.T. 13.467
MPH 105.64

Other 2 runs were 13.8's @ 105's


I have 2011 MT6 Sport w/ Post MAF Tubes, K&N Drop ins, Invidia TP, UPrev Tune. Car pulled 309.89 RWHP & 263.13 TQ on Dyno.

I was shifting into 4th right @ the end of the 1/4 rest of shifts were @ around 7700 RPM.

I am a little disappointed but I am sure it was just driver error.

I have F.I. exhaust ordered and plan on getting Boosted Performance turbo kit as soon as I can order it..so we will fix this.
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Old 06-27-2012, 07:34 AM   #658 (permalink)
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Nice

Planning on going this Friday night. Finally have summer tires on my car now so hopefully I can finally beat my stock time
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Old 06-27-2012, 08:10 AM   #659 (permalink)
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Quote:
Originally Posted by Sysopz View Post
I went to ATCO Raceway NJ tonight the best I could lay down was;

R/T .618
60' 2.193
330 5.833
1/8 8.787
MPH 83.76
1000 11.320

E.T. 13.467
MPH 105.64

Other 2 runs were 13.8's @ 105's


I have 2011 MT6 Sport w/ Post MAF Tubes, K&N Drop ins, Invidia TP, UPrev Tune. Car pulled 309.89 RWHP & 263.13 TQ on Dyno.

I was shifting into 4th right @ the end of the 1/4 rest of shifts were @ around 7700 RPM.

I am a little disappointed but I am sure it was just driver error.

I have F.I. exhaust ordered and plan on getting Boosted Performance turbo kit as soon as I can order it..so we will fix this.
"I am a little disappointed but I am sure it was driver error"
So how is a tubo going to fix that?
sorry, I can't help it
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Old 06-27-2012, 08:19 AM   #660 (permalink)
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Made a little fun, now I can help you.

Your 60' sucks & you're just getting into 4th at the finish.

Solution,
You get 4:08 gears & a good set of drag tires.
With your H.P. & those two additions will get you easily into the 12's....
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