G-Tech Testing (In both directions!)

kctrading · January 1, 2002

I've been testing my quater mile in one direction thinking it was pretty level...so I thought!

Today before getting to work I thought I'd test in going the other direction in my local test area which is located way out of town on a remote area...here are the results:

Also put the tailgate down on this run. Alt is 1600 feet above sea level. 4HI Launch first 30mph then 2WD.

3.73 gears on 32" 285/75R16 tires. 5200lbs

North to South run: 13.65 @103.5 MPH!

South to North run: 13.94 @99.8 MPH (gate was up)

Average: 13.79 @101.65 (new best time!)

Average/Corrected Sea Level: 13.54 @103.5 MPH

North to South run 0-60mph 5.05 seconds!

South to North run 0-60mph 5.28 seconds

Average 5.16 seconds! (new best time!)

Corrected Sea Level... 5.09 seconds!

CONCLUSION: If your running a g-tech you need to test in both directions in the same conditions...no matter how level it looks!!! You may be faster or slower depending depending on which side the angle favors you.

Remember when I was running low 15's at the track and with my g-tech with 8psi of boost? Here are the mods I've done since then to get where I am today:

Insulated Water Injection Tank

Installed dual 3" cats to 4" exhaust system

Installed Crane Cams LX91 coil

Replace spark plugs... NGK TR6 gapped 35ths

Install Dual elec fans

Installed Procomp rear bars (+40lbs)

Took off rear bumper (-67lbs)

Clean GMAF Sensor

Replaced Fuel Regulator, inside intake

Match Ported BBK TBI 80mm to adapter plate and intake

Biggest improvment came from the bigger exhaust system by far! Back Pressure was 6psi...now around .5 to 1.0psi at WOT 5,300rpms

Per Smokemup.com here is what they say my HP is.

http://www.smokemup.com/utilities/calc.cfm

Your car weighs about 5200 pounds and has a 1/4 mile time of 13.79 seconds, 22% drivetrain loss. That calculates to approximately 391.92 HP at the wheels, and about 502.46 HP at the flywheel. Sea Level Time would be even more

Ken

www.kctrading.net/sierra/ <<