Pat's 20 step Drag Racing

Buccanoles

Buccanoles

Member
Aug 14, 2006
348
0
16
57
Tallahassee, Florida
I dont know about other people but I didnt want to take my eyes off the track long enough to push the 2wd button. I just pushed it when I let off. I cant answer your question about tire pressure, I'm sure somebody will chime in. I couldnt air down my tires because I didnt bring a pump and the track didnt have one either.
 
TrentNell

TrentNell

Finally underway !!!!!
Jul 7, 2008
7,543
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44
slc tuah
Bako_Dmax said:
How about a list of what to log during a 1/4 mile run using Efi, and what to look for after the run.
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I log pretty much the imperial duramax pids( basic efi file) and all i really care about is being able to see what rpm/boost i launched at , actual rail, mm3, and like to watch all my shift points and just basically make shure it was consistant with all my usual runs .
 
Subman

Subman

Old Geezer
Jun 27, 2008
3,233
10
38
80
Madras, OR, Pahrump NV
Dozerboy said:
I always wondered about that I took out the tcase in my old truck. Shortly after hitting the button and gunning it with the front tires on pavement and the rear in a ditch.
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Didn't follow my own advise last weekend in Spokane, I was racing Rob in the finals of supersteet and only planned to launch to get a bit more practice on the .4 protreet. Anyway it went up in smoke on the launch, and I thought I had forgotten to engage the 4x4. I couldn't remember if I had hit the button or not. Embarrasing as hell. Anyway, next day on the way home I stopped for fuel and when I was turning the truck around I noticed it was in 4x4. I had driven over 100 miles in 4x4 and didn't know it. So make sure it engages by backing up a little. Mine is tough to get out as well, just letting off the fuel doesn't do it all the time. Have to come almost to a stop before it will pop out once in a while. Max'd Out has a manual T-case. I've wondered what would happen if you took it out say short of the 1/8. Probably nothing good with drag radials.:eek:
 
JustinD

JustinD

Plow Truck
Nov 21, 2008
2,067
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36
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Tiverton Rhode Island
I am also curious on tire pressure, I plan on going to the dragway tonight (unless it rains) I am going to run my 285 75 16's on PYO's I think they'll be better than my M/T ATZ's? I'm not sure how low to go with my 285's??
 
Subman

Subman

Old Geezer
Jun 27, 2008
3,233
10
38
80
Madras, OR, Pahrump NV
JustinD said:
I am also curious on tire pressure, I plan on going to the dragway tonight (unless it rains) I am going to run my 285 75 16's on PYO's I think they'll be better than my M/T ATZ's? I'm not sure how low to go with my 285's??
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Depending on how hard you launch, I'd start out with 30 in the front and 28 or so in the back. They feel a little mushy when you turn but can handle it. I've run as low as 22 in the back and 25 in the front
 
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