Island Dragway Run
5.3 6L80
I have about $30k into her with all the mods (suspension, audio, wheels, etc)
Whipple 2.9 with upgraded intercooler pump
MightyMouse Xtreme catch can
Kooks stepped 1 7/8" stainless headers
offroad Y (catless)
Borla touring exhaust
Circle D triple disk 3k stall
Custom aluminum 1 piece driveshaft rated for 1k lbs/ft
OEM rear rebuilt with Yukon guts and Eaton Trutrac carrier & 4.11s
Atomic Fabrication poly motor mounts - 1" shorter
Tune (obviously)
The above run was done on the factory rear with the stock 3.08 gears and 24" wheels. She was running consistently between 14.01~14.2 at 98-99. My r/t was not so good. My best was a .699 which is pitiful, but like I said the last time I was at the track I was 20 with an 86 IROC.
The rear is now sporting 4.11s and have a set of 22's with low profile tires. I will eventually get a drag pack. I should easily be pulling down a 13.7 or better although I haven't been to the strip since I did the rear. This is a 2WD Burb.
I daily drive the truck plus auto cross it which is why i have like $7k+ in suspension.
I have done absolutely ZERO work to the motor and am only considering it now to get rid of the mechanical AFM components PLUS I am out of fuel. In order to make more power out of the 5.3 I need to upgrade the fuel system otherwise it will run lean. Need to replace the in tank pump, the cam with the 32% fuel lobe, the L86 high pressure fuel pump or the LT1 pump, plus injectors. without touching heads or changing the pully the tuner said I can easily get another 50hp out of the stock motor with fuel upgrades.
As for suspension, I have a 2"\4" drop on the truck courtesy of Belltech 2" drop spindles and eibach coils out back. All the suspension links in the rear are Spohn components. Eibach sways F&R, DJM sway links F&R Eibach rear coils, and DJM relocation bracket for the lower trailing arms in the back. Bell tech adjustable shocks in the 4 corners. Front suspension are Mevotech boxed aluminum a arms u/L, poly bushings from a Silverado and custom sleeves. Again DJM links attach to the Eibach sway. The only component left from the factory are the front coils.
The Whipple is a blast to drive. With the 4.11s installed, its an absolute beast from a dig. Its a violent launch but with the 24s it actually grabs pretty good. If I had motor work done first instead of the SC, I don't think I would have such a dramatic increase in power for the $$$ spent. 60k miles later and I am itching to improve it but I don't need much more to keep those smiles per mile coming.