Originally Posted by DaveB

My recommendations:

1) Put the OEM intake back on. The Stillen intake doesn't add power and it could be allowing the motor to ingest very hot underhood air (150 degrees+). With you're other mods and no tuning, there is the possibility you could be running very lean to the point that timing is being reduced and the A/F richened. Both kill power. Put the OEM intake back on

2) Let the car shift itself on the 1-2. It will shift quicker. Simply put the car in "2" when you get to the line. Once it completes the shift, hold 2nd until 6400rpms, then shift to 3rd. Hold 3rd the rest of the run. Shifting to 4th will increase ET by .15 to .2 second and reduce MPH by 2mph. Been there, done that. 3rd is good to 101mph on OEM size tires.

3) Shallow stage. That means roll up to the line and set the prestage light. Then creep up until the stage light comes on and STOP. This will give you about 1 foot of roll out before the timers start. It's not good for reaction time, but it does have a small effect on ET and MPH.

4) When the tree starts to fall, hold the brake and mash the gas to the floor. This should get you to around 2500rpms on the launch. Release the brake. This should all take around 1 second.

5) Run with less than a 1/2 tank of fuel and get all the crap out of the car. Being 300lbs isn't helping you at all. A 150lb driver will be at least .15 seconds and 1mph faster in your car.

Originally Posted by Boston03G35

I took my 2003 G35 to New England Dragway on Friday night..

CAR:

5AT
90,000 miles
Stillen Cold Air kit with Box
Z Tube
5/16 Motordyne Spacer
3" Single Catback with Flowmaster 44 muffler
Street Tires

TRACK:

90 ft above sea level
70 degrees out
DA calculated at 633 ft

1st Run
Ran in Auto, Tires at 30psi

R/T - .304
60' - 2.336
330' - 6.400
1/8th - 9.738
MPH - 73.75
1000' - 12.606
1/4 - 15.018
MPH - 93.00

2nd Run
Ran in Auto, Tires at 22psi

R/T - .180
60' - 2.340
330' - 6.387
1/8th - 9.720
MPH - 73.92
1000' - 12.579
1/4 - 14.987
MPH - 93.11


I had a few more runs that night all trapping between 92-93.71mph, ranging between 14.98-15.3 ET's and ALL runs with a 2.3 60 foot time...


My concern is that i thought these cars ran low 14's at mid 90's stock. My car dyno'ed at 223rwhp before the setup.

Does something seem off to you?


Thanks for any interpetation

Dave

Originally Posted by DaveB

2) Let the car shift itself on the 1-2. It will shift quicker. Simply put the car in "2" when you get to the line. Once it completes the shift, hold 2nd until 6400rpms, then shift to 3rd. Hold 3rd the rest of the run. Shifting to 4th will increase ET by .15 to .2 second and reduce MPH by 2mph. Been there, done that. 3rd is good to 101mph on OEM size tires.

Originally Posted by TurTLe*

i'm not following here. i think i'm dumb...

i understand letting the car shift 1-2. but when you go line up place it in 2? will it go into 2 at the line waiting to launch? why not just leave it in D for the launch and 1~>2 shift and then once in 2nd switch over to MM.

Originally Posted by Dsskyline

I think you can only do Dave's trick with the earlier sedans like he has. I know I can't do that in my 04 coupe I've tried.

Originally Posted by ajcool2

Those times are really slow. I understand its his first time but g35's shouldnt be running 15's.