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Go Back   Hummer Forums by Elcova > Hummer H2 Discussion Forums > Technical Discussion and Customizing your H2

 
 
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Old 06-27-2007, 12:54 PM
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Join Date: Nov 2004
Location: Little Rock, Arkansas
Posts: 1,784
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Default Re: For those with superchargers...Need technical advice

Before I added SC but, with a tune. I had Dynatech catback header system, throttle body spacer, electric fans and all the other stuff I had on it when i did add SC and I ran 400/407 at the wheels using a G-Tech Pro unit. Book said to make 3 to 5 runs and average. I ran 10 passes 5 from each direction and still stunned me. I called support over and over asking them how reliable is this and got different person each call and they said sir please trust the unit. Our units are what NASCAR and NHRA are now going to while running G force tests and preliminary HP and torque check tests etc. They are getting rid of the $10,000 electronic units they had been using for the same purpose.

I was stunned because i new i was chirping wheels before SC. I was running down little foreign rigs with 20lbs. of boost all the carbon fiber the dudes could hang on the ride making them so light it would be easy to blow them over on there backs with a strong wind while parked.

The torque steering was rough before SC and became unreal after SC. With SC on I beat my cousins new 2005 vette late summer after adding SC in a 0 to 60 run. If it had been to 75 or 100MPH he may have run me down. I jumped him so far out of the hole at launch I thought his engine must have died or something. He did not have the upgraded engine package but, whatever a vette runs well period.

People can believe whatever but, these H2's and some better than others, just as in the muscle car days when some built on a certain day it all came together right, the H2 can do more than imagined if pushed and done right. All the wheels pulling get's you moving allot sooner than the others smoking their tires or pedaling the throttle to get their rig to hook up.
It has surprised me for sure looking at these beast. I made a believer out of myself and still have allot of pushing yet to do when i get better.

TAZ
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05 H2 SUV cus. paint, Magnuson SC 6/12lb boost, cowl hood scoop, 12" dash touchscreen, GM elec. fans, HPTuners.com tuning soft., Dynatech headers dual catback exhaust Jet Hot chrome front to back Flowmaster Super 40's, Diamo 8 Karat rims & 325X60-20" Toyo, 4 OEM Captain seats Katzkins leather, rear console computer inside running all AV/NAV etc., Infinity component system 3 amps Tsunami Caps, rear flip down 12" monitor, headrest monitors, overhead console boost, fuel pressure, & A/F ratio gauges
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