Help! 5.3/turbo/4wd-no traction
#21
TECH Veteran
I really doubt you're lifting the left front tire at only a 1.8 60'. Since your truck is a normal 4wd system, if you are spinning the front that hard, the back is also spinning. Do you have both rear wheels spinning? If you're only spinning the left front and right rear, traction will be a problem. If you are running a locker in the rear, maybe it's a problem with your tire choice. Honestly though the easiest fix is to just launch at less boost.
#22
TECH Junkie
Thread Starter
Originally Posted by zippy
I really doubt you're lifting the left front tire at only a 1.8 60'. Since your truck is a normal 4wd system, if you are spinning the front that hard, the back is also spinning. Do you have both rear wheels spinning? If you're only spinning the left front and right rear, traction will be a problem. If you are running a locker in the rear, maybe it's a problem with your tire choice. Honestly though the easiest fix is to just launch at less boost.
#23
TECH Veteran
Don't take my posting as knocking on you, mearly just covering base's. If leaving at say 4psi causes a smoother launch, it might be easier to handle than 6-7psi is my only thought on that. Remember, you're not lowering your overall boost, just your pre-laoded boost. Those Eagle LS2's aren't all that great for hooking as some of the Silverado SS guys have found. I would have someone check to make sure that the rear is locking in though, that can cause big problems with the front spinning. On the awd trucks, they can spin one driveshaft faster than others, on yours it is all equal speed. There have been some 4wd regular cabs getting 1.7 60's on the stock suspension with those tires, but they are launching off idle. With your suspension being pre-loaed, you are getting a different launch reaction. Are you heating the rear tires at all before making the pass? What tire pressures are you running?
#24
TECH Junkie
Thread Starter
I'm not heating the tires except on one run and I didn't get a 60', the timer wasn't working in that lane. I tried to let air out until they looked flat across the pavement, that was 35 front hot, 32 rear hot.
#25
TECH Junkie
Thread Starter
Adjusted the torsion bars and dropped the front end only about 2". New times in sig.
Ran a C6 ZO6, it would be almost my worst run of the night, he passed me at the 330 for a 7.879 in the 1/8th. I even let my wife make a few passes, her reaction time is killer, first time out, but she hasn't figured out how to leave on boost very well yet. When she does she'll be kickin' my ***. This truck is 7's for sure, just have to wait 'till cooler weather to find out how deep. There is a bit more in the 60', probably in the mid to high 1.6's. By the way, averaging 22.5-23 mpg on the highway at 70.
Ran a C6 ZO6, it would be almost my worst run of the night, he passed me at the 330 for a 7.879 in the 1/8th. I even let my wife make a few passes, her reaction time is killer, first time out, but she hasn't figured out how to leave on boost very well yet. When she does she'll be kickin' my ***. This truck is 7's for sure, just have to wait 'till cooler weather to find out how deep. There is a bit more in the 60', probably in the mid to high 1.6's. By the way, averaging 22.5-23 mpg on the highway at 70.
#26
9 Second Truck Club
iTrader: (16)
Originally Posted by ZO6Ted
Adjusted the torsion bars and dropped the front end only about 2". New times in sig.
Ran a C6 ZO6, it would be almost my worst run of the night, he passed me at the 330 for a 7.879 in the 1/8th. I even let my wife make a few passes, her reaction time is killer, first time out, but she hasn't figured out how to leave on boost very well yet. When she does she'll be kickin' my ***. This truck is 7's for sure, just have to wait 'till cooler weather to find out how deep. There is a bit more in the 60', probably in the mid to high 1.6's. By the way, averaging 22.5-23 mpg on the highway at 70.
Ran a C6 ZO6, it would be almost my worst run of the night, he passed me at the 330 for a 7.879 in the 1/8th. I even let my wife make a few passes, her reaction time is killer, first time out, but she hasn't figured out how to leave on boost very well yet. When she does she'll be kickin' my ***. This truck is 7's for sure, just have to wait 'till cooler weather to find out how deep. There is a bit more in the 60', probably in the mid to high 1.6's. By the way, averaging 22.5-23 mpg on the highway at 70.
#27
Staging Lane
Join Date: Aug 2007
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run spring clamps in the rear both front and rear of the axle. this will eliminate any axle warp and lock the rear so there is little to no weight x-fer to the rear tires
pull the torsion bar screws all the way out. the dancing left to right is the front unloading it can also lead to breaking 1/2 shafts as well
a stock LB7 300/520 or 250/420 at the tires will bend the tie rods. i knew there are alot of guys runnning 400/400 hp/tq at the tires.
just my .02 cents
pull the torsion bar screws all the way out. the dancing left to right is the front unloading it can also lead to breaking 1/2 shafts as well
a stock LB7 300/520 or 250/420 at the tires will bend the tie rods. i knew there are alot of guys runnning 400/400 hp/tq at the tires.
just my .02 cents
#28
TECH Junkie
Thread Starter
Originally Posted by stock48
Did you lower the rear too?
#29
TECH Junkie
Thread Starter
Originally Posted by malibu795
run spring clamps in the rear both front and rear of the axle. this will eliminate any axle warp and lock the rear so there is little to no weight x-fer to the rear tires
pull the torsion bar screws all the way out. the dancing left to right is the front unloading it can also lead to breaking 1/2 shafts as well
a stock LB7 300/520 or 250/420 at the tires will bend the tie rods. i knew there are alot of guys runnning 400/400 hp/tq at the tires.
just my .02 cents
pull the torsion bar screws all the way out. the dancing left to right is the front unloading it can also lead to breaking 1/2 shafts as well
a stock LB7 300/520 or 250/420 at the tires will bend the tie rods. i knew there are alot of guys runnning 400/400 hp/tq at the tires.
just my .02 cents
#30
Teching In
Join Date: Jul 2007
Location: Sunny California
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rare
Originally Posted by ZO6Ted
Adjusted the torsion bars and dropped the front end only about 2". New times in sig.
Ran a C6 ZO6, it would be almost my worst run of the night, he passed me at the 330 for a 7.879 in the 1/8th. I even let my wife make a few passes, her reaction time is killer, first time out, but she hasn't figured out how to leave on boost very well yet. When she does she'll be kickin' my ***. This truck is 7's for sure, just have to wait 'till cooler weather to find out how deep. There is a bit more in the 60', probably in the mid to high 1.6's. By the way, averaging 22.5-23 mpg on the highway at 70.
Ran a C6 ZO6, it would be almost my worst run of the night, he passed me at the 330 for a 7.879 in the 1/8th. I even let my wife make a few passes, her reaction time is killer, first time out, but she hasn't figured out how to leave on boost very well yet. When she does she'll be kickin' my ***. This truck is 7's for sure, just have to wait 'till cooler weather to find out how deep. There is a bit more in the 60', probably in the mid to high 1.6's. By the way, averaging 22.5-23 mpg on the highway at 70.