G8 GT: New Mods Yield New Best
09-15-2011, 03:09 PM
#1
G8 GT: New Mods Yield New Best I bought my car new in September of 2008 and drove it for over 2 years in stock form. I was itching to throw some mods at it, but I always had something else to do to my Z28, so the G8 stayed stock. At the beginning of this year my Z28 suffered breakage that put it out of commission for the remainder of this year, so I decided it was the perfect opportunity to start playing with the G8. Hey, if it was going to be my only toy for a while then I might as well make it fun!
My last trip to the track with just a cold air, axleback, and dyno tune had me running 13.17 @ 106 mph with a 2.04 60'. The car never spun, I would just do a small burnout, bring the rpm up to just over 1000, and mash the gas.
Recently I added ARH long tube headers with catted x-pipe, and an SLP underdrive pulley, and had the car retuned for the new mods.
I went to LVD last night with hopes of coming home with a 12.99 timeslip. I was also hoping that the extra power would be enough to get me a 1.99 60'.
According to dragtimes.com the DA was between 1800 and 1200 last night.
First pass in I ran a 12.82 @ 108.4 mph with a 1.98 60', but I forgot to hold the trans in 3rd gear and it was in the middle of shifting into 4th as I was crossing the line. For the rest of the runs I held it in 3rd.
The runs went as follows:
12.75 @ 110.04 with a 1.959 60'
BEST PASS
60': 1.954
330': 5.429
1/8: 8.251
mph: 87.50
1000: 10.670
1/4: 12.708
mph: 110.41
12.749 @ 109.96 with a 1.958 60'
12.713 @ 110.19 with a 1.956 60'
12.715 @ 110.71 with a 1.970 60'
Overall I couldn't be more pleased with the car as I easily hit and passed my goals for it. I might take it back later in the year and see if I can improve on the numbers in better air, but as far as mods go I think I'm done until my Z28 is back on the road.
My last trip to the track with just a cold air, axleback, and dyno tune had me running 13.17 @ 106 mph with a 2.04 60'. The car never spun, I would just do a small burnout, bring the rpm up to just over 1000, and mash the gas.
Recently I added ARH long tube headers with catted x-pipe, and an SLP underdrive pulley, and had the car retuned for the new mods.
I went to LVD last night with hopes of coming home with a 12.99 timeslip. I was also hoping that the extra power would be enough to get me a 1.99 60'.
According to dragtimes.com the DA was between 1800 and 1200 last night.
First pass in I ran a 12.82 @ 108.4 mph with a 1.98 60', but I forgot to hold the trans in 3rd gear and it was in the middle of shifting into 4th as I was crossing the line. For the rest of the runs I held it in 3rd.
The runs went as follows:
12.75 @ 110.04 with a 1.959 60'
BEST PASS
60': 1.954
330': 5.429
1/8: 8.251
mph: 87.50
1000: 10.670
1/4: 12.708
mph: 110.41
12.749 @ 109.96 with a 1.958 60'
12.713 @ 110.19 with a 1.956 60'
12.715 @ 110.71 with a 1.970 60'
Overall I couldn't be more pleased with the car as I easily hit and passed my goals for it. I might take it back later in the year and see if I can improve on the numbers in better air, but as far as mods go I think I'm done until my Z28 is back on the road.
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09-16-2011, 09:34 AM
#8
Thanks!
I'm sure I COULD get decent gas mileage 
Seriously though, GM's attempts to get the gas mileage up on these cars is my biggest complaint. The stock 2.92 gears and wuss DOD cam really kill the performance. Imagine if this car was rated the same 400 horsepower as an LS2 and came with 3.23 gears stock?
Seriously though, GM's attempts to get the gas mileage up on these cars is my biggest complaint. The stock 2.92 gears and wuss DOD cam really kill the performance. Imagine if this car was rated the same 400 horsepower as an LS2 and came with 3.23 gears stock?
