Ecoboost quarter mile times and mod's
07-25-2012, 09:20 PM
#101
Senior Member
Last Friday I ran my truck in 2WD using the locker. I locked it in, did a short burnout, then staged the truck. I was only able to launch the truck at 1,800 rpm's, anything more and the truck starts blowin the tires off while still in the beams waiting for the tree to come down! Next time I go, i'm gonna air the rear tires down and see if I can get the truck to hold a higher launch and not blow the tire off thru the 60ft. I know there is a difference between how the locker functions between the 2011 and the 2012, may wanna look into that before you go out to the track!
Bob
Bob
07-25-2012, 10:05 PM
#103
Senior Member
Try 22 LBS that worked for me.
If you have a decent compressor (not one of those super cheapo cigarette lighter ones) that does not take forever to fill a tire, you might consider "airing up" the front ones as well to the maximum pressure. Less rolling resistance......you'd be surprised every little bit helps. I bought this one from Harbor Freight it's a step up from the cheapos and works fairly quickly.
http://tinyurl.com/4qud3xg
If you are at like 14.01 and trying to break into the 13's you could pull the air filter for a couple of runs, takes a a minute and might get you that 10th you are looking for.
Try not to show up with more than a 1/4 tank of gas, you don't need the extra weight.
Oh.....and fold your mirrors in!
If you have a decent compressor (not one of those super cheapo cigarette lighter ones) that does not take forever to fill a tire, you might consider "airing up" the front ones as well to the maximum pressure. Less rolling resistance......you'd be surprised every little bit helps. I bought this one from Harbor Freight it's a step up from the cheapos and works fairly quickly.
http://tinyurl.com/4qud3xg
If you are at like 14.01 and trying to break into the 13's you could pull the air filter for a couple of runs, takes a a minute and might get you that 10th you are looking for.
Try not to show up with more than a 1/4 tank of gas, you don't need the extra weight.
Oh.....and fold your mirrors in!
Last Friday I ran my truck in 2WD using the locker. I locked it in, did a short burnout, then staged the truck. I was only able to launch the truck at 1,800 rpm's, anything more and the truck starts blowin the tires off while still in the beams waiting for the tree to come down! Next time I go, i'm gonna air the rear tires down and see if I can get the truck to hold a higher launch and not blow the tire off thru the 60ft. I know there is a difference between how the locker functions between the 2011 and the 2012, may wanna look into that before you go out to the track!
Bob
Bob
Last edited by SICKQK; 07-25-2012 at 10:21 PM.
07-25-2012, 10:14 PM
#104
Senior Member
Try 22 LBS that worked for me.
If you have a decent compressor (not one of those super cheapo cigarette lighter ones) that does not take forever to fill a tire, you might consider "airing up" the front ones as well to the maximum pressure. Less rolling resistance......you'd be surprised every little bit helps. I bought this one from Harbor Freight it's a step up from the cheapos and works fairly quickly.
http://www.harborfreight.com/12-volt...sor-96068.html
If you are at like 14.01 and trying to break into the 13's you could pull the air filter for a couple of runs, takes a a minute and might get you that 10th you are looking for.
Try not to show up with more than a 1/4 tank of gas, you don't need the extra weight.
Oh.....and fold your mirrors in!
If you have a decent compressor (not one of those super cheapo cigarette lighter ones) that does not take forever to fill a tire, you might consider "airing up" the front ones as well to the maximum pressure. Less rolling resistance......you'd be surprised every little bit helps. I bought this one from Harbor Freight it's a step up from the cheapos and works fairly quickly.
http://www.harborfreight.com/12-volt...sor-96068.html
If you are at like 14.01 and trying to break into the 13's you could pull the air filter for a couple of runs, takes a a minute and might get you that 10th you are looking for.
Try not to show up with more than a 1/4 tank of gas, you don't need the extra weight.
Oh.....and fold your mirrors in!
Yea......I had a lil over 3/4 of a tank in it, coulda done without all the extra fuel!
Should have pulled the mirrors in too, forgot about that one! Pretty sure I can get her in the 13s now with a lil more seat time. Wonder where I should start at for tire pressure in the rears....any ideas???Bob
LOL
07-25-2012, 10:22 PM
#106
Senior Member
07-25-2012, 10:35 PM
#108
Senior Member
You want to try to get the very best out of the truck while your there so you might as well pull out all the stops, especially if you are just doing it once in a while.....IMO.
Honestly with the SCT 93 tune I'm running.....I'm not real confident that it will hook next time. With the 012's and forward the 2wd E-locker may be the ticket with the tires aired down and if the track is prepped decent.
-Mark-
07-25-2012, 11:09 PM
#109
Senior Member
I've been to the track only once back in the fall. I made 3 passes. I started a 25 lbs. in the rear and had a little tire spin. I lowered it to around 22 and hooked without any spin. I have a 2011 and the E-locker only works in 4wd so this was with an open rear. I didn't air up the fronts, remove the air filter, or fold the mirrors...I will next time.
You want to try to get the very best out of the truck while your there so you might as well pull out all the stops, especially if you are just doing it once in a while.....IMO.
Honestly with the SCT 93 tune I'm running.....I'm not real confident that it will hook next time. With the 012's and forward the 2wd E-locker may be the ticket with the tires aired down and if the track is prepped decent.
-Mark-
You want to try to get the very best out of the truck while your there so you might as well pull out all the stops, especially if you are just doing it once in a while.....IMO.
Honestly with the SCT 93 tune I'm running.....I'm not real confident that it will hook next time. With the 012's and forward the 2wd E-locker may be the ticket with the tires aired down and if the track is prepped decent.
-Mark-
Yea....gonna be a lil more prepared next time. Clean the truck out, less fuel in the tank, mirrors etc... I want that 13 second timeslip! Thanks for the help Mark.
Bob
07-26-2012, 12:55 AM
#110
Later Mark.