i went to Epping NH earlier tonight, ran the sedan for the 1st time.G35x bone stock using manumatic and torque braking. i got the time shown below. what can i do to improve my time as a driver

R/T.... .781
60' .... 2.372
330 ... 6.536
1/8 ... 9.875
MPH .. 73.31
1000 . 12.748
1/4 ... 15.150
MPH ... 94.16

 

You need to work on your launch (practice it more) and you should be able to get it down to 2.15-2.2 and that will get you into the 14's. What rpm are you launching at?

 

yea pressing the brake and giving a little gas deffinitily helps the launch in my opinion.

 

power braking to 4k, thats the most the car will rev up to with brakes.
i got a better times when i shifted as appose to leavinig it in D.

 

Yep, RT is the key. A buddy of mine has an 05 sedan (not the X) and a 6 speed but is running like a 14.8 (approx) but he like myself was in the low 15's origianally. It takes alot of practice and you have to experiment with different teq. Good luck

 

RT has nothing to do with ET. You could technically sit at the starting line for a week and it won't effect your ET. Not until the car breaks the timing beams do the clocks start.

 

ok i think i am a pro at this now, i pull 2.1s all day lol i have a 04 5AT

my 60 foot times are slower if i try to give it any gas when i am staged, i hold my brake down and then just floor it, i dont give it any gas at the line, it seems to bog a bit if you give it gas before you launch at the track, i have ran my car about 30 times now so i have tried all different stuff


also helps with a hundred shot as soon as it grabs traction in first, hehehe
also i have noticed that in auto mode it shifts too early, you really need to take third gear all the way out, i leave it in 3, take off let it shift for me in second and into third, hold out third and shift it into 4th. also have noticed that sometimes if i try to shift through all the gears, it has trouble shifting from first to second, bounces off the rev limiter about 4 or 5 times

14.2 stock, with a 2.1 60' time

i almost think that when you launch giving it gas first, it rolls a bit, trips the light to start your time, hesitates and then takes off IMO

 

Dave is absolutely right. Why is this such an unknown? R/T is important, but only in competition. At test & tunes (99% of the people here) it makes no difference what so ever.

The most important thing in the 1/4 is the 60', which I'm seeing our car don't do so well.....

A good torque converter does wonders for the autos. Nothing but practice will help the manuals.

2.0 60' and above are not good. These G's seem very mod UNfriendly, until you step up to FI.

 

Same technique I use. I stage and then as the ambers start to fall, I push down on the brake, then floor the gas, and release the brake a split second later. The rpms seem to jump to around 2200-2400rpm or so. My G manages low 2.2s and they feel so slow compared to the low 2.2s my old Maxima consistently pulled off. The G launches without drama where as the Maxima was a torque steering wheel-hopping tire spin nightmare.

Like you, I hold 3rd. I also manually shift the 2-3, but not the 1-2. If I try to manually shift the 1-2 at WOT above 6000rpms, there's a slight bog. It's a torque management system reducing a some power to save the tranny. I find it annoying and unnecessary seeing that there's no bog when you let the tranny shift itself on the 1-2.

When my G launches at the track, it doesn't even spin a tire. About 10' out and as the rpms hit 3000rpm or so, the car lays down, and then takes off hard after hitting 4000rpms (it's almost a light turbo boost sensation). I hate the trait in the 5ATs. Clearly this is something Nissan designed to hold back the sedan's performance. These cars could be so much quicker without that programmed bog. Hopefully I'll be able to pull of some 2.1s in the cooler Fall air. I'm going to pump up my tires to see if I can induce some much needed to spin to get out of that bog.

 

i hold 3rd till the end of the run.no need to go in to 4th. when i left the car in D it would trap @ 91 mph evry run, but if i shift i get 95 mph for E.T.

 

Many cars have the luxury of do-it-yourself ECU tuning. Plug in the laptop, make changes, and if you don't like them, go back. You won't believe how much an auto can gain by deleting the torque management. Not to mention rev limiters, A/F ratios, etc.

I wish someone would do this for the Japanese cars.......

 

went to EPPING tonite again, this time 14.81 @ 95.1
didnt torque brake this time and it got me a better time,,
thanx alot the tip.

 

no problem for the tip, i really have done this enough to practice different methods, thats just the method that my car has lower times...

 

If you get an ecu/chip, can't that get take the timing retard in between shifts off?

 

I would take a look at your tach again.....4k is WAY too high with the stock t/c. 2500-2700 is more like it.

MM was worth a solid tenth for me.

On the X cars, you should be brake-torquing as hard as you can, side-stepping the brake on the last yellow.

Pull the brake light fuse and see if your 60' comes down.