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Actually, not breaking the tires loose isn't really a bad thing. You WANT traction. However, my guess is that the stall on the converter isn't high enough to get up to the RPM with the power needed to spin the tires. After the engine has warmed up, put your foot on the brake and hold it while you give the car gas. At the point the car starts to over power the brakes, pop your foot off the brake while you slam the gas to the floor. See if that helps.
I am assuming it is an auto........You probably need more power.......You could always drop a different gear and stall converter in it..........Say a 3:73 gear and a 2500 stall...My car will burn the tires off.........catch a vicious second and chirp a third. Before I started modding it would barely spin them on wet pavement :lol:
After the engine has warmed up, put your foot on the brake and hold it while you give the car gas. At the point the car starts to over power the brakes, pop your foot off the brake while you slam the gas to the floor.
It's pretty common to break engine mounts when you're powerbraking (so I have been lead to believe anyway). At some point solid engine mounts (Mine are Moroso) would be a good thing, especially if you're going to be in there changing torque converters and such anyway. My '73 L48 with the smog pump and airconditioning removed, electric fan instead of clutchfan, Holley 650 DP spreadbore, wouldn't break the tires loose (or just barely) if i just drove away, but if i powerbraked it would leave two 8-10 foot stripes (not real dark but you could tell they were there, and the posi worked great cause they were exactly the same length). It's cool, the rear end kinda slides to the right and you steer into it and then it hooks up and... :D
pretty soon I'll have the 396 in there (the stamp number says it came with 410footpounds, now has big domed pistons and an RV cam) should be no problem smoking the tires with that one :eek: .... oh, my dad broke an engine mount in our '68 3/4ton truck... the 327 lifted up on the drivers side and pulled itself to full throttle and stayed there! He just shut it off and went coasting for a while...
I couldn't burn too much rubber either (even with a ZZ4) a little bit but not much. Then I swapped carburetors...now it spins the tires, pulls harder and will even chirp a little going into second. :thumbs:
Part of the problem is the way the rear end is set up compared to a straight rear end which would spin easier.
One trick you can do when your at a stop sign/light and need to turn, punch it and you should get some spinning going around the corner. The pos. rear end seem to spin good around corners.
As mentioned earlier if you get a higher stall convertor it should make them spin a lot better.
PureSilver:
He was cuting donuts on an open road :nonod: . At the beginning it looked like he was going to do a donut right into the woods. I would also like to point out that his rear end (posi packs specifically) is not going to last very long.
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