Under hard acceleration in 1st, 2nd, and sometimes 3rd, my rear end wants to come around. What do I need, upper/lower control arms, just lowers, or a bigger sway bar? Someone point me in the right direction please.
Um...??? 3.73's put in a couple years ago but I'm not sure if they were messed with...How many miles on your trac-lok clutches?
I have the 555's.. What arms do you?Heck that's what makes these cars so fun! LOL
But anyway, upper and lower control arms and a pair of these sure helped me with that issue.
Nitto NT05's
However,,, My poor old tired T5 now hates me.
What are the specs on those wheels and tires bud?Heck that's what makes these cars so fun! LOL
But anyway, upper and lower control arms and a pair of these sure helped me with that issue.
Nitto NT05's
However,,, My poor old tired T5 now hates me.
I went cheap this time and bought these:http://www.latemodelrestoration.com...-Tubular-Rear-Upper-And-Lower-Control-Arm-KitI have the 555's.. What arms do you?
The tires are Nitto NT05 drag radials in 275/40-17's. I no longer have the wheels. They were the black '93 Cobra replica's in 8.5"x 17" from LMR.What are the specs on those wheels and tires bud?
Since you seem confused...if the clutches in the trac loc are worn out, it can cause one side slip a bit. This would push the car one way or the other. The 12 bolt in a Cutlass I used to have was that way. It was so bad, when I'd light 'em up one tire mark was always darker than the other.Um...??? 3.73's put in a couple years ago but I'm not sure if they were messed with...
How squeaky and rough are they?I went cheap this time and bought these:http://www.latemodelrestoration.com...-Tubular-Rear-Upper-And-Lower-Control-Arm-Kit
Made a huge improvement over the stock warn out originals and seem to handle what I got going on just fine.
Tires are new nitto 555's, the rear suspension is stock still. My suspension setup is basic - subframes connect, ford racing b springs, and kyb shocks/struts. As for power I'm not sure 300 maybe?? I was making 223 rear before 6-8lb boost was added. Yes, if I'm cruising easy in 3rd and mash the gas the tires will spin some.Even if the T-lok was worn out, the rear end shouldn't come around. A worn dif would pretty much make it an open differential and if too much power was applied, it would just turn into a 1 wheel peel smokeshow as the lack of friction material fails to transfer power to the other side. Usually the right wheel would spin. Drive a V6 Mustang in the snow and you'll see this happen. Drive a V8 with a good t-lok in the snow and if one wheel goes spinning, you can count on the other one joing it and the rear end stepping out.
Usually with a functioning T-lok, when one tire loses traction, the other one soon joins it and anyone who drives Mustangs know that two spinning rear wheels on a short wheelbase car is never a good thing.
If anything, the ease of which both tires spins makes me wonder if the t-lok is "tight" and gripping too much. Not enough friction modifier?
SO it leads me to two simple questions.
How good are your tires, how much horsepower is this car making, and what is the rear suspension setup like.
The 555's are descent on the street and mediocre at the track. I borrowed a set of the NT05's this summer for 2 passes. Way better track tire. I didn't use the bottle just a couple n/a passes. Ran them at 18+20# pressure launching at 3000rpm with a good amount of slipping the clutch. Got 2 sub 2.0sec 60(1.87 if I remeber right). Which with the 555's I couldn't get below a 2.00's. They like a little heat in them but not a crazy burnout. I liked them. They are softer/stickier and wouldn't last a long time(maybe a few thousand miles). Where the 555's you could possibly get 12000 miles out of a set depending on how many burnouts/track days you have. If you're looking for a track only tire they are ok but if go with a bias ply dot tire like the M&H. They are darn near as quick as a slick.
The diff isn't causing your tires to spin. It's power and the lack of suspension/tires. I would imagine with 6-&# boost you're over 300rwhp. Sounds like your suspension isn't allowing the axle to help plant the tires.Tires are new nitto 555's, the rear suspension is stock still. My suspension setup is basic - subframes connect, ford racing b springs, and kyb shocks/struts. As for power I'm not sure 300 maybe?? I was making 223 rear before 6-8lb boost was added. Yes, if I'm cruising easy in 3rd and mash the gas the tires will spin some.