Burnin rubber
 

ok this is kinda making me a little mad i have a 72 Jimmy w/ estimated 315 hp and i can't do a freakin break stand. any suggestions why i can't do one?

crappy gears.
I have quite a bit of power, but I have to try to turn the right rear on mine.

it takes a litlle more horse power than people think to roast the hides..an inexpensive way of doing it is to add a line-loc...under 100.00...it allows you to lock only the front breaks...other ways(besides making more Horse power) lower gears(higher numerical) a higher stall converter..shorter rear tires

Sorry, can't be of much help... check to the left under my name, quite explanatory. I will say that bigjimzlll is right, it takes more horsepower than most people realize.

I have 31" x 9.5" meats on my C20, and with the 3/4 ton drivetrain, and stock 327, it's a complete PITA trying to get the tires to break loose. Even when I power brake it, they just spin a little bit, and it doesn't lay down any rubber or smoke at all. Pathetic.

I think my main problem is horsepower. I just need to make alot more. I'm thinking new heads and cam should be at the top of my list. Anyone know what a stock '68 327 makes in HP?

Jeez, I feel sorry for you guys. Nothin done to my truck except a rebuild and HEI, and I can do an excellent power brake burnout. Heres my intruction list:

1). Find first gear (I have an SM465). This may take a while to do.
2). Dump clutch, hold brakes & gas.
3). Cough at the intense fumes.
4). Repeat as many times as necessary.

And there is an optional bonus step:

5). Laugh at your friends in their ricers who try to lay a patch but just chirp the tires.

Yeah, but it's easier to do with a manual tranny! :D

Can't you select a low gear on automatic trannies, like
P R N D 2 1? I'd think that'd work. If not...buy a stick shift, lol.

Sure, you can select a gear, but you can't dump the clutch. Makes a huge difference.

also the 1st gear on a sm465 is like 5 to 1..while an automatics 1st gear is 2.5-1...try doing the burn out in 2nd gear with a sm465..thats what its like with the auto..oh yeah dont dump the clutch

Park on some gravel or hose down the pavement :p

i have to disagree with most of ya'll about the amount of horsepower. in my dakota, i can roast them from a standstill, or power braking. of coarse, it is a stock r/t, 250 horses, 345 ft/lbs of torque. you have to have torque to push these bricks down the road, otherwise, you can have as much horsepower as you wish, but you won't go anywhere without torque.

actually 250 real HP and 345ftlbs of real torque would be enuff to do it...but in the real world, most dont have that much

are you talking 'bout at the rear wheels? those numbers that i quoted are from the engine alone. i'm not sure what the bwhp is on the dakota r/t, never took it to the dyno.

some of the HP ratings for a 350 were below 200HP..and if the engine is tired, with a new intake and carb+ headers..its not a whole lot more than that. That and the fact that are chevys have the best rear suspension, and hook fairly well

i agree that the chevy's have the best rear suspension. i'll have to see what mine does when i get done putting it together.

Here's what you do: Log chain the rear to a BIG tree, preferably dense hardwood like oak. Put a half quart of motor oil under each rear rubber and hit it! Recommend gas mask if you have sensitive eyes or lungs! LOL

you might want to take the slack out of the chain before you floor it!:D

Oooo...I, forgot to mention that. LOL!!

pickup an old windsheild washer bottle and pump, run the spray hoses back to just in front of your rear tires. When you want to smoke'em just give it a spray and press the pedal.

:burnout:

my camaro is only rated at 170 bhp and i can brake stand that all day. my truck has way more power and haven't tried the brake stand yet....don't trust my carrier bearing. but it will break loose at half throttle on dry pavement at a stand still.

I just did a little burn out..took the slicks off and put the 295-60-15s on...I let off at 100 yards. I was in third by 60 feet..the neighbors are'nt very happy...lol..:burnout:

i feel your pain,i have a healthy,non stock,327/350 in my truck with 3:73 gears in the back. all i get out of it is a chirp when i floor it. now my 97 z/28 6spd will lay all the rubber ya want all the way into 4th gear. so if i want to throw down some rubber i hop in the camaro,but if i want to thump around and smoke the same camaros like mine i hop in the truck :D cause as they are busy trying to get traction i am down the road before they hook.

A higher stall converter would help a lot . So would lower gears. Remember truck tires are a lot taller than passenger car tires so a typical 4.10 geared truck rear end would be the equivalent of a 3.31 or 3.54 under a camaro. Yet at the same time your'e trying to push another 1000 lbs down the road. Its the man conspiring to hold you down!

I figure I can get 50-70 yards of rubber stuck to the road off both rear tires before I get bored. 4.57's are sweet !

oh yeah i forgot to mention that that i have 33 X 12.5in Muds

My truck has no problem spinning if i get it sideways, and it will do a GREAT burnout if i powerbrake it, but if i am stopped and simply mash on it, it won't even turn over a tire. It has a fairly fresh 350 with about 275 hp and 375 tq, TH350, and 3.07 one-legger gears. The 255x50-15 tires i have right now won't spin from a dead stop w/o powerbrakeing, but the old 235x75-15 would spin for about 15 feet in the same situations. I think the coil springs help plant the power to the ground pretty good. Also, if you have positraction or a locker, it obvisouly won't spin near as good as a open diff. Which is good if you wanna go somewhere instead of make smoke :).

You need gears. 4.57's or at least 4.30's . If you have stock 3.73's or worse you'd have the equivalent to 2.73's or thereabouts in a passenger car. SUCK ASS GEARING !!!!!

Dont get me wrong. Hi gears have their place. If you want good gas mileage ... buy a Honda . Use the truck for what God intended. And that would be hauling ass!

I would also say a higher stall, I have a 3000 stall with 3.55 gears in mine and I have to actually try NOT to burn out at stoplights but I'll admit it's fun when it does he he!! I have to really be carefull, it spins into second too, and it's an auto Tranny!

Stuff in a 502HO with a 3.07 Posi--smoke without power braking.

Damn, that's another problem I forgot about: a posi diff. So, I have posi-traction, big tires, low HP, 3/4 ton drivetrain, TH-400 tranny, ALL WORKING AGAINST ME!!

EDIT: The only thing I've got going for me is my 4.57 gears :D

ANOTHER EDIT: I'm going on the assumption that it's posi-traction, but it's a Corporate 10-bolt, which is the same as an Eaton, right? In that case it could very well be a locker? The option listed on the options sheet says "NO-SPIN REAR AXLE". Hmmm, I have no freaking clue what I have...:(

YET ANOTHER EDIT: Ok, after reading about the characteristics of lockers vs. posi vs. open etc., I'm thinking it might be an Eaton locker, because the tires do make that "chirping around the corners". Yes, I know, not scientific analysis, but it seems most likely.

I've tried to power break too and no go. I can mash it from a stand still and leave a blackie for a at least a city block, but I can't power break. The 402 is makin about 425hp and 550ft.lbs. of torque, I don't think power is the problem. I can't find the happy medium, either I push the truck b/c breaks aren't pressed enough or they lock up and non of the wheels turn. I am running a stock TH400 and 3.54 gears and I figure a higher stall will do the trick.

A good way to tell if you have a locker in that eaton is to turn the truck off, put it in neutral and grab your rear driveshaft. If you can rotate it 30 degrees or so one way or another then you have a locker. If you had that much slop with an open rear end the thing would self destruct. With the locker you'll have that much slop between the cogs of the locker unit. If you notice when you are going down the road and you let of the gas quickly it will "clunk" a bit as the lockers cogs shift into their coast mode. Give it gas again and it'll clunk the other way.

You just need more power ....or a higher stall converter...or both .

Tonight on my way home from work I started from a dead stop in 2nd gear. I don't use 1st really at all, unless I am up to shenanigans or offroading, I start in 2nd when street driving. Didn't dump the clutch, but almost. Truck couldn't get traction to save its life. Big cloud of smoke, lots of spin & noise. Didn't move forward til I let off the gas. So it must be my truck is cooler than yours. lol

Edit: While doing this I also burned thru an 1/8th tank of gas.
Also, I let off the gas about 5500 rpm, I'm afraid to rev it higher than that. I heard that the redling is about 6 grand on a 350. I know I sound like an idiot doing this, I just want to explore my truck. In my normal driving, I never ever take it over 3 grand. I usually try to keep it under 2.5. I have 3.73 gears, or at least thats what the p/o told me. Originally 4.10's but were swapped, now speedo is off so I assume he's right.

yea..thats one bad mamajama you have there...ever feel like racing??????..lets see if I go to kansas to pick up a new engine..its not that much further to Ohio...lol

I don't know what you're complaining about. I wish my truck hooked up as good as yours. I've got 275/60's on the back of mine, and they'll go up in smoke. I wish I could get it to bite better. Everyones been talking about horsepower. It's torque you need to spin tires. :flag:

So that's what that clunking is!! I've been wondering forever why it did that! It was actually worrying me, thinking there was something wrong with the driveshaft or something :) Thanks Mike!

Now I'm gonna have to go out tomorrow (if it's not still raining) and check the slop in the driveshaft.

lol, I am taking it to the track tomorrow to see what I can do in the 1/4 mile. This will be my first time ever to drag race (believe it or not, in ANY of my cars) and I will prolly smoke the tires and do bad. But it's a fun thing my co-workers do, they have ran just about every kind of vehicle at the track...my buddy is runnin his new Kawasaki bike w/ us, and another in a brand spankin new F-150 4x4, not to mention my friends with ricers, and my 350+lb. manager in her primer and purple Mitsubishi Eclipse...lol. I don't really consider my GMC "badass," although I am being pitted against a S10 with a 2.8 V6 because my friends think my truck is so slow. I am 99% sure I will whip the S10, i think its stock...only advantage he has over me is that its an auto.

can someone explain how a power brake is done. Thanks ed ke6bnl So.Calif.

Put your tranny in 1st gear, hold down the brakes while you press the accelerator, then when the rpm's are high enough, you let off the brake and hopefully the tires break loose.

I think that's the simplified way of doing it; I've seen some people that have really good brake control and are able to let off the brakes just long enough to get the rear tires spinning, then tap on the brakes again to stop the vehicle from moving, but have the rear tires keep spinning.

This is all for an automatic transmission; if you have a manual, just dump the clutch :D

Thanks for the explanation. My boys 70 sb will easily smoke the tires without any help. I know from the $175 ticket he got because it was hard not to cherp the tires. He now carries 4 five gallon jugs of water tied to the back of the bed of the truck for better traction. That was with 275x60x15 tires 3.73 gears. Ed kebnl So. Calif.

My truck will spin the street tires a long ways.