[gnx7]

I have around 300 miles on it mainly in town breaking in the clutch and transmission with truly only about 30% throttle. The engine has 150K+ miles on it so it doesn't need any break in that's for sure. Andrew put a basic conservation tune on it and it drives GREAT. Even on cold starts with 45* water temps it starts right up without issue. I did notice when I would get on the freeway (50% throttle or so) and give it more throttle to actually make the turbo make a couple pounds of boost that the engine didn't seem happy and I was hesitant to give it more...

I added some TORCO to the 91 bringing it up to probably 93-94 octane on the last tank. Getting on the freeway it was doing the same thing.... didn't feel healthy.. Well after getting off the freeway and the car dying (near full tank of gas) with a struggle to get back to my shop.... I tested the fuel pump relay and thought maybe the tank was empty... same symptoms of the pump not powering up/prime upon start. I finally opened the trunk and found most of the wires going to the MSD solid state relay block were not tight. Well next test drive after tightening them going up the on ramp did the same style driving and the turbo comes on and blows the tires off (2nd gear) even with part throttle. The 5.3 doesn't seem to have any problem spooling this 76mm (1150hp rated turbo). I'm guessing the Holley was saving the motor as it was going lean (Dominator EFI). Part throttle it drives the same... but once in boost its painting a smile on my face now. Hope to do some more testing next month and break in miles on the transmission/clutch and then do some E85 and turn it up in spring.

I'm getting some tire rubbing out back going in/out of driveways... so I need to raise it a bit... and maybe space out the rims a little more. Other than that it really drives like a kitten and just needs more power.