Track results for a fat truck...
07-25-2016, 10:27 AM
#1
Track results for a fat truck...
Well, first off I feel like a dope because I made my two passess WITHOUT having installed my Black Bear 91+ Octane tune! DOH! That's what I get for being technically challenged. On the other hand, I get to go back to the track to see what difference the tune made since it is installed now. I just have to wait for another 75*F day to go, which could be a while.
So...this is what my truck had done to it when the following passes where made. For whatever reason the 1/4 trap speed wasn't working. Temp was 75*F. Like I said, she's fat and slow.
2004 Chevy Crew Cab Short Bed Z-71 4wd 5.3L LM7 / 4L60E / 3.73 gears
Magnaflow Muffler # 11229 3” SI/SO
AEM Pro Flow Dry Air Filter (oem panel style)
Airaid M.I.T.
left off idle,
left @ 1,200 rpm,
So...this is what my truck had done to it when the following passes where made. For whatever reason the 1/4 trap speed wasn't working. Temp was 75*F. Like I said, she's fat and slow.
2004 Chevy Crew Cab Short Bed Z-71 4wd 5.3L LM7 / 4L60E / 3.73 gears
Magnaflow Muffler # 11229 3” SI/SO
AEM Pro Flow Dry Air Filter (oem panel style)
Airaid M.I.T.
left off idle,
left @ 1,200 rpm,
Last edited by LOBO2; 01-25-2017 at 08:00 AM.
08-13-2016, 08:21 AM
#7
I was going to try to wait until I could hit the track with the same weather conditions as the last time, but that'll be several months away. Besides, I really don't think I can wait that long.
Now I just have to find the time and the weather has to cooperate, which it hasn't been doing lately.
Last edited by LOBO2; 08-13-2016 at 08:27 AM.
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08-13-2016, 10:52 AM
#8
Staging Lane
Join Date: Jul 2016
Location: SLC, Utah
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I went to the track last night and was super surprised at how slow it went lol.
03, z71, 5.3/4l60e, 285/50/20 wheels tires, electric fan, intake, cat back and an EFI tune. I only made 1 pass, but left in 4x4 for fear or burning off the rears. Measly 2.6 60' with a 16.9@83mph. I'm not sure if 4x4 helped or not, but I couldn't believe how terrible the 60' was. It feels like a solid 14.9 second truck on the street. I need to swap my 4l80e in with my 3200 stall converter. That should bring it off the line much harder.
03, z71, 5.3/4l60e, 285/50/20 wheels tires, electric fan, intake, cat back and an EFI tune. I only made 1 pass, but left in 4x4 for fear or burning off the rears. Measly 2.6 60' with a 16.9@83mph. I'm not sure if 4x4 helped or not, but I couldn't believe how terrible the 60' was. It feels like a solid 14.9 second truck on the street. I need to swap my 4l80e in with my 3200 stall converter. That should bring it off the line much harder.
08-15-2016, 08:24 PM
#10
TECH Junkie
The track hurts a lot of feelings for sure lol. Wallace track calc. shows 15.96 for an 83 mph and a 10.07 in the 1/8th. Not bad at all for such a big truck. My stock 07 RCSB4x4 went only 10.39 on 20's btw. The track is a great measuring tool for mods so now that you've got a baseline just keep track of weather and track conditions. Just stay after it and have fun improving. That's all we're after anyway. Congrats! 