breaking tires loose on second gear

[yannick47]

this probably sounds like a stupid question but i think i should be able to break loose my rear tires under woot on second gear??or cant i?
i can break loose them rear tires on first 3 gears as long as i want if i dump the clutch



440 .30 over
kb 237 pistons
eddy rpm heads 84cc closed chamber
luncati 60304 cam
wieland 8009 intake
msd ignition and summit module box
750 holley carb(vacuum secondary)
3.55 open rear end

 

[RustyRatRod]

I assume it's a 4 speed. Either one of two things then. ...and I don't mean this in a smartass way. Either you don't know how, OR somethin is wrong. If a big block in front of a 4 speed cannot roast tires in 2nd gear, there's a problem. Whether it's a mechanical problem, or a bad connection between the seat and steering wheel remains to be seen. lol

 

[yannick47]

thanks rusty for pointing out the problem ..lol but well i can brake them loose even on third if i dump the clutch....but like while crusing on 2nd 20 mph and then wooot ..... doesn't break loose the tires if you get what i mean

I assume it's a 4 speed. Either one of two things then. ...and I don't mean this in a smartass way. Either you don't know how, OR somethin is wrong. If a big block in front of a 4 speed cannot roast tires in 2nd gear, there's a problem. Whether it's a mechanical problem, or a bad connection between the seat and steering wheel remains to be seen. lol

 

[RustyRatRod]

I get what you're sayin. When you make the 1-2 shift and THEN yam the gas, no tirespin in 2nd. It should be gettin sideways and meltin the tires. A stock 383 HP would do it.

 

[yannick47]

so what could be wrong??

I get what you're sayin. When you make the 1-2 shift and THEN yam the gas, no tirespin in 2nd. It should be gettin sideways and meltin the tires. A stock 383 HP would do it.

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could the open rear end make a difference?

 

[Hemi Rebel]

I dont know about all that. If your in second at around 20mph and stomp on it youre gonna need some serious low end grunt to break them loose. And if the tires are anything but hard as a brick its probably gonna bite.

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If anything, an open rear should make it easier.

 

[D575]

Have you got oil all over the clutch from that leaky main seal ? { don't they all ? }

 

[Cranky]

Fairly big heads, low rpm @ 20 mph, crap Holley 750 vacuum secondaries, kinda of a large cam is your problem. What's your initial timing set at and what is your total advance and at what rpm is it all in? And I bet you are not really into the low range of where that cam operates at when in 2nd gear doing 20? Put a 750DP on that thing or even an 800DP. You have a 4 speed so they will work very well with it. I've NEVER liked Holley vacuum carbs....

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Have you got oil all over the clutch from that leaky main seal ? { don't they all ? }

No....

 

[67 coronet]

statment of problem does sound kind weird.if you are doing 20mph in second,down shift!exactly what cranky said,your setup is not a low end torq monster,use your power band.

 

[yannick47]

ive got on pretty wide back tires on now...and the weather down here is seriously hot......
like i stated if i shift from 1st gear around 4000rpm and then stomp on 2nd it does rip the back wheels off...
just wanted to know if its normal(or i have some issues related to timing etc)
and the rpm range on my cam is 2200 -6400 if im not wrong

 

[RustyRatRod]

Shift from 1st to 2nd without taking your foot off the gas.

 

[Jasoncoronet]

I dont know what your driving but any relative stock car with a big block or small block will no break the tires loose in second gear under acceleration. It take some serious power to do that. Maybe if you dump the cluth after shifting you might get it to break loose but I dont think so.

 

[RustyRatRod]

I don't know what yall are smokin. Charles who is part owner here has a 71 383 4 speed Super Bee and he can roast um in 2nd rolling. STONE stock 383 HP, but we did put the super tune on it.

 

[Hemi Rebel]

I don't know what yall are smokin. Charles who is part owner here has a 71 383 4 speed Super Bee and he can roast um in 2nd rolling. STONE stock 383 HP, but we did put the super tune on it.

What tires? Rear end gears? Does it have ralley wheels or magnum 500's? Or stamped steels? I bet its sexy isnt it?

 

[RustyRatRod]

It's actually a survivor. It has about 75% of its original butterscotch paint. It has 3.55 gears. He's just got some old junk wheels with some kinda 60s on the back I think. I'll get some pics next time he drives it.

 

[court9155]

What tires and how much does the car weigh? Id bet it has more to do with ignition timing and your carby than anything.

 

[yannick47]

ive got mastercraft 295/50 in the back on 15 " wheels and no idea about the weight of the car (1974 roadrunner)

 

[D575]

ive got mastercraft 295/50 in the back on 15 " wheels and no idea about the weight of the car (1974 roadrunner)

3600 lbs. It needs to go on a diet



http://www.mymopar.com/vehicleweights.htm

 

[HT413]

ive got mastercraft 295/50 in the back on 15 " wheels and no idea about the weight of the car (1974 roadrunner)

Those tires are 12" wide, and at 20 mph in 2nd you're in the neighborhood of 1200 rpm. With those wide tires, that relatively tall gearing and your setup, it's no wonder it's a dog doing 20 in 2nd gear. Hell i dont think you should be thinking about 2nd gear until 30 mph cruising, closer to 55 or 60 when racing.

 

[67 coronet]

I don't know what yall are smokin. Charles who is part owner here has a 71 383 4 speed Super Bee and he can roast um in 2nd rolling. STONE stock 383 HP, but we did put the super tune on it.

i am sure the"super tune"had a ton to do with that one.there is also some driving finness to burnouts.just getting into a stone stock ride and hitting the gas is not always a good judgment of the cars potential.cars have power bands that they like.has as much to do with weight,gearing and tires as it does the motor.