Trying to plant the rearend better....
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Junior Member
Joined: Apr 2004
Posts: 15
Likes: 0
From: Wisconsin
Car: 82 Trans Am T-top, Red
Engine: 305 Crossfire
Transmission: Metric 200
Trying to plant the rearend better....
does anyone know of anything that will help me get a little better traction short of moving the engine and drive train back a foot or more? Would the after market torque are help any?, is there something else that would help?
Im running a 427 small block chevy, with a 700R4, 4.11 gears with a detroit locker.
~Nick~
Im running a 427 small block chevy, with a 700R4, 4.11 gears with a detroit locker.
~Nick~
Senior Member
Joined: Sep 2004
Posts: 532
Likes: 0
From: Laguna Beach, Ca
Car: Gutted 92' RS TRACK ONLY / '86 Mustang gt 'vert / 1982 Yamiaha xs400 Cafe Racer
Engine: L03; TBI is IT! / 5.0HO (306) SFI / 400cc air cooled twin
Transmission: 700-r4 / WCT5/ 6-speed close ratio
um...suspension work...tires....moving the engine/trans back a foot seems a bit extreme....
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iTrader: (13)
Joined: Dec 2002
Posts: 2,535
Likes: 17
From: Bowdon, GA.
Car: 1988 Camaro
Engine: 355, 10.34:1, 249/252 @.050", IK200
Transmission: TH-400, 3500 stall 9.5" converter
Axle/Gears: Ford 9", detroit locker, 3.89 gears
I'm fighting traction probs myself, but moving engine back is the wrong idea. That's great for a tube chassis car thats still being build, but for a door slammer no way. Too much work cutting out the floor pan, firewall, adding a full cage, tube type engine crossmember, etc etc
You need to look for the real fix not a bandaid.
Weight transfer and placement
non flexing chassis and suspension
sticky tires
Remove as much nose weight as you can, add move more weight to the rear if you can.. (glass hood, battery in rear, alum engine parts, etc ect)
Bind free front A- arm bushings, no front sway bar, "drag" type front shocks, "drag" type rear shocks
Sub frame conn., poly lower controll arm bushings, aftermarket lower controll arms, lower controll arm brackets, stronger flex free aftermarket torque arm, poly TQ arm mount/bushing, set pinion angle right so it's at 0* when you launch (to do that it has to be -2-4* sitting still)
Tires, tires tires, and tires again. Just a point.. I went from BFG t/a street tires to yoko avid s/t street tires. Both the same size, and my 60' times went down .03 sec.
Later i'm gonna try some nitto 555R drag radials. Those should drop my 60' atlest .2-.3 sec, being i'm still spinning the yokos for alittle over 60' and rolling into the throttle too
If you have to keep a "street tire" on it then look into the drag radials like the nitto, BFG, etc
If it's not a street car then look into like M/T streets, or hoosier quicktimes
If you don't race in a D.O.T tire class go all out and get a set of slicks
You need to look for the real fix not a bandaid.
Weight transfer and placement
non flexing chassis and suspension
sticky tires
Remove as much nose weight as you can, add move more weight to the rear if you can.. (glass hood, battery in rear, alum engine parts, etc ect)
Bind free front A- arm bushings, no front sway bar, "drag" type front shocks, "drag" type rear shocks
Sub frame conn., poly lower controll arm bushings, aftermarket lower controll arms, lower controll arm brackets, stronger flex free aftermarket torque arm, poly TQ arm mount/bushing, set pinion angle right so it's at 0* when you launch (to do that it has to be -2-4* sitting still)
Tires, tires tires, and tires again. Just a point.. I went from BFG t/a street tires to yoko avid s/t street tires. Both the same size, and my 60' times went down .03 sec.
Later i'm gonna try some nitto 555R drag radials. Those should drop my 60' atlest .2-.3 sec, being i'm still spinning the yokos for alittle over 60' and rolling into the throttle too
If you have to keep a "street tire" on it then look into the drag radials like the nitto, BFG, etc
If it's not a street car then look into like M/T streets, or hoosier quicktimes
If you don't race in a D.O.T tire class go all out and get a set of slicks
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iTrader: (1)
Joined: Apr 2002
Posts: 4,671
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From: Waterloo, Iowa
Car: 86 firebird with 98 firebird interi
Engine: pump gas 427sbc Dart Lil M 13.5:1
Transmission: Oldani TH400 w/ BTE 9" convertor
Axle/Gears: 31 spline Moser/full spool/4.11Rich
Pretty much what nightrider said. IMO running that 427sbc with goobs of torque, combined with the 700r4's deep first gear and 4.11 cogs your in a extreme case of pushing any traction to the limits. That's an awuful lotta power to send to a granny first gear set-up and I bet your shift light comes on about as soon as youo react to the tree turning green.
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