I'm just curious. I've been asking questions and stuff about my carb so my car can run it's best. I noticed today, as a few times before, on my last "test" run, I stopped, threw it down to first and floored it. The tires spun out but nothing "hard core." I didn't power brake it either, just floored it. They kinda screeched really quick and that was it. Some of my friends have told me that it's just because my car hooks with my tires...only thing is that their regular 275/60 BF T/As on 15x10s out back. I hear stories of guys leaving clouds of rubber smoke from their street tires...not that that's what I'm trying to do. I guess I kinda feel like, I've got a pretty decent and quick motor/car, but it seems like I can't do much of a burn out from a stand still and take off. I mean, I can do one while holding the brakes no problem, just doesn't "seem" much fun not bein able to fish tale and leave a loooooooong patch of rubber on the street tongue.gif :D

Sooooo...this leads me to question....how much hp does it take to "roast" your tires?

I filled the whole car up with smoke when trying out the line lock after installing it. :D

Had to make sure it works you know!

Depends on how big your tires are. :D

Originally posted by 71metbu:
Depends on how big your tires are. :D Yeah, when I had the 14x7 mags out back, I used to leave a couple blocks worth of rubber smoke. Not that easy anymore tongue.gif

Probably also depends on gear ratio and just how good of traction do the tires get on pavement.

I've got 4.11s out back and really great off the line :D As for traction, it's all the same factory except for the air shocks. Could the air shocks play a role in "roasting" the tires? I know they're not ideal for a street/strip car, but at the time of purchase, I thought that was the "thing to do." graemlins/clonk.gif

Its a combination of things. Gears, tires, power, road conditions, etc. My best friends dad (hard core ford guy) had a 3.00 geared mid '70's 1/2 ton ford truck with a bone stock '73 429 station wagon engine in it. Once the tires started spinning, they would roast forever. 405 feet stripes was the longest we ever got out of it.

257.5 Horse Power at the Wheels. Wanna prove me wrong?

How is it that someone with a Procharged anything can ask such a rediculous question?

Ummmm....I don't have a Procharged engine, that why its says "in the works"

Guess I better change it before I get told off for it tongue.gif

I had a '78 Le Mans back in the day with a junk yard SMOG 350 and highway gears with a peg leg. Let's just say I was on VERY good terms with the local used tire dealers and VERY bad terms with the local law enforcement.

Alex, my little ol' 350 can roast the 275/60 BFG TAs almost at will from a standstill, i bet the 2.73s help a bunch. Once they get going, they don't like to stop, lol.

Even the 305 could muster some decent pegleg lines. smile.gif

But it depends on a lot of things. Sometimes the 350 won't spin them worth a darn, just gets up and goes, sometimes I used to leave some nice marks.

You have a 388 in your car and its having problems roasting the tires? Must be one tame 388 espically if it cant do it with 410's. My 67 will BLAZE my 275-50-17's at a 35mph roll I would take a second look at your combo!

You have a 388 in your car and its having problems roasting the tires? Must be one tame 388 espically if it cant do it with 410's. My 67 will BLAZE my 275-50-17's at a 35mph roll I would take a second look at your combo!

'You working for the mafia? Got some dead bodies with concrete shoes in the trunk? :D

That's odd. I would have understood with 2.73's, but 4.11's? WOW! :eek: What stall speed converter do you have? Anything heavy (subwoofer, tools, etc)in the trunk?

Olli

Originally posted by 71velle_malibu:
'You working for the mafia? Got some dead bodies with concrete shoes in the trunk? :D

That's odd. I would have understood with 2.73's, but 4.11's? WOW! :eek: What stall speed converter do you have? Anything heavy (subwoofer, tools, etc)in the trunk?

Olli LOL, dead bodies....come to think it..... tongue.gif
well I used to have my 12" orion in the trunk, which weighed a good 40lbs or so (cousin made the wood box for me) but other then that, all I have in there is my spare tire, floor jack alllllllll my tools and some other junk. I'd say I have a good 100lbs or so in the trunk. Maybe that's my prob :confused: graemlins/clonk.gif

Well, with that motor and 4.11s you should be able roast them anyways, I would think? :confused:

But yes, weight in the trunk/back makes quite a difference, I can not spin the wheels for more than 15 feet when my fuel tank is full. With empty fuel tank I hardly get any traction at all.

Do you have any timeslips to share? I'd like to know how your car performs on the strip.

What about the stall speed?

Olli

ran 8.80@79mph on the 1/8 mile. Stall is a B&M Holeshot 2000. I was talking to Hot66SS, and he was saying part of the problem is because of the low stall. He thinks I should go with a 3K stall. I don't exactly have any cash right now to throw around, anything else you guys can think of? TIA

If you want endless tire smoke, you need a moderate amount of torque and highway gears. Once you get it up on the gear, you can spin them for a long time. Buddies Lincoln with a 429 was the best I ever saw. Would burn them as long as you wanted, but very little forward momentum.

Also new BFG's are surprisingly sticky. I put a set on my 5.0 because I didn't want the thing to ride like a rock anymore, and my tire spin problems almost went away. almost...

i think the question should be how much torque does it take to make a car a tire schreding monster answer:=not much

Explain Irony: You are upset because you can't smoke the tires at will with your 383 small block; I have been changing things one by one to get my 408BBC powered car under a 2.00 60' time because of excessive wheel spin!

I bet I could roast the tires in my minivan if I rev'd it high enough before slamming it in gear . . . about 165 HP would be my answer, but probably less . . .

all my small blocks and big blocks for that matter smolder the tire as long as your foot is in it with no brake and the one that dont its because its danglin the front wheels and draggin the rear bumper ahhhhhhhhhh

stall converter change will help. im not sure of your combo, but if it makes peak torque at 4000rpm and you stall at 2500(you said it will power break strong) the right conveter will cook the tires

Originally posted by 71velle_malibu:
...But yes, weight in the trunk/back makes quite a difference, I can not spin the wheels for more than 15 feet when my fuel tank is full. With empty fuel tank I hardly get any traction at all... More weight, more traction, right. But we're talking smoke not just spin. There's lot's of variables, I don't know for sure what makes the best combo but more weight = more smoke for me. 4 adults + trunk full of chairs and cooler = car full of smoke. By myself car launches better, tires hook up sooner = less smoke, assuming I get it on it the same. Trick is to get them spinning with little forward motion of car. With your setup maybe the only way is with braking.

All I can add is that before I redid the rear suspension, it had Cooper Cobra's on the back. 235/60s. I could lite them up at will, any gear, any speed. Once I put the new uppers in and tweaked the pinion angle, and repalced the old, hard Coopers with new 275/60 BFG T/As, I could NOT lite them up at will anymore.

I took that as a sign I moved in the right direction, suspension wise.....and that BFG's are pretty soft rubber ...

Check the sig, it still " smokes 'em , cause it's got 'em ", but not ridiculously like before.

If it really bugs you, install a line loc like Brian says. Even a 120 hp motor can smoke them if the front brakes are locked. Or find some hard compound tires, used!

I had a '68 Dodge SWB, stepside pickup with a slant-6, three on the tree, and a thimble sized carburetor. I couldn't tell you what the gears were, but they were pretty deep. I could heel/toe the brake/accelerator, rev her up, dump the clutch, and smoke the rear tires for a while!

That poor thing had very little power at the flywheel, but with the torque multiplication of the gears it could have pulled a house if I'd tried.

Well I guess at the "risk" of sounding even more graemlins/clonk.gif Maybe the main "factor" is my tires. I do know that with my old set of BFs I was able to light them at will, but these, but I've had these "new" ones for about a good 2 years or so. They've been normally street driven for 99% of the time I've had them. When I bought them I decided to keep away from the "horse play" because I didn't want to drive stupid and do burnouts left and right and waste them. Amazingly there is A LOT of tread on them, and now that I've been messing with the car trying to improve on its performance, they still seem to be hooking. Like I said earlier, I can light them up while holding the brake, as to the amount and thickness of the smoke, that's a different story, but trying to smoke out on take off is somewhat difficult. They'll chirp, screech, and squeal, but no smoke and very little, if any, patches of black.

I don't know if it's all the junk in the trunk, but no matter what, the front end loves to lift. As it was, while I was test driving my car yesterday, I was holding it in 1st and stabbing the throttle. Front end would rise and everytime it'd come down, you'd hear the tires squeek. Now if I can get one of my buddies to get it on tape :D

One of two things: Your combo is amiss somewhere and you're not making the power you should be, or you've lucked out and found a suspension/tire combo that hooks pretty damn well. A lot of us spend hours and weeks looking for that elusive combo to limit wheelspin.

My story: mild 454 with 3.70 posi and 225/60/15 would light up the tires pretty good, but it had a bunch of rotten bushings and bad shocks. Rebuilt suspension with stock parts, and it hooked a little better. Added 255/60/15 BFG radials on all 4 and it would get a little rubber and go. Switched to the 3.08 rear just prior to motor swap to break in the axle first, and it would barely spin the tires.
When I added the ramjet 502, keep in mind I had to use a stainless fuel tank that wieghs about 80 lbs empty. The car would at times sit still and smoke the tires in to oblivion without power braking. I have never had to deal with axle hop, but the wieght of the fuel tank made the rear end sit too low. I installed a pair of air shocks and the car will still spin the tires hard through first and some in second, but it does so with a lot more forward motion to it. I set the height with the air shocks so that the tread is even with the fender lip in the rear. No axle hop, and rides much better than before. Handling improved substantially. I have also found the BFG's are hooking better with age.
This is done with a turbo 400 tranny and a TCI saturday night special converter. (2000 stall?)
Tire temps and pavement temps, along with ambient temp will probably have huge effect on tire spin too. Cold weather allows longer and harder spins, hot weather reduces horsepower and increases traction right? Right after I rebuilt the tranny when it was still behind the 454 it was 30 degrees outside, with the 225 tires still on it. I burned through first and second and never hooked till it was in third gear. I wanted to make sure if the tranny was going to break it was gonna do it right then and there! Still holding up today!

Originally posted by saturnstyl:
Tire temps and pavement temps, along with ambient temp will probably have huge effect on tire spin too. Well it was pretty warm when I was testing and tunning....no 100s, but I'd say around 80s or so.

70 SS chevelle 540 830 hp 400 foot burnouts with 10" MT Drag slicks

-64 ss chevelle blown 540 1000+hp 1320 foot burnouts with mt 18.5" street slicks.(who has the biggest.... competition).still i too am more focused to traction and faster times than burning up expensive tires.

Originally posted by dart468:
still i too am more focused to traction and faster times than burning up expensive tires. It's like a right of passage for Horse Power enthusiasts. First you want to turn over your tires... then you want to actually accelerate once you realize that is a lot more fun.

Do a search on "burn outs" and I'm sure 90% will pertain to pre-launch ruitines and getting more TRACTION at the line. So perhaps the better goal is "how do I sixty foot better"... I think I may have read a thread or two-hundred on that.

smile.gif

Hmmmm.....I have NO PROBLEMS roasting my street slicks at the drop of the hammer.....500 or so HP helps also!!!
Brian

Put some bleach under your rear tires. Should have no problems.

LXS ... I agree with everyone else! You should be tearing the tires off that thing. I just replaced my drag radials with some 295 50 15's radial ta's . They are an inch wider than my drag radials but a harder compound and it still rips them off. You want to do a burnout, get yourself a biondo line-lock, 40.00 from summit? The best upgrade I've done for the money. My chevelle will smoke'm until I run out of gas or blow a tire. Granted, it's a 500hp small block in a well set up car, but it would do the same with the stock ZZ4. Good luck

Well I finished up messing around with my carb and she seems to burn out a little better....but then again, I was going up hill. I've noticed its easier to burn out going up hill then down hill....does that sound right to you guys? I didn't go around doing burnouts everywhere, I was just testing it out and stabbed the throttle a couple times and let off right away. The 2 or 3 tiny burnouts I did do were about a block away, but the wife heard them anyway graemlins/clonk.gif

Naturally it will be harder to burn out going down hill than up hill. While going up hill you have gravity pushing against you, downhill, gravity is working with you.

my friend has a sbc 350 w/ 320 rwhp to the ground and anything from 0 mph to 40 mph will light them up on demand....3.73 gears,posi, 3200 stall 255/60-15 tires.......(this car is great for show off action but try and race on the streets forget it....)

my z28 has about 360 rwhp if im lucky and on the right cement i can get a bark out of it from a rolling 5 mph....lol.....if i just stand on it from a dead stop on the street i get about 10 to 15 feet of black mark depending on the cement once again.....2.73 posi,2500 stall is what hurts me.
(this car is not a show off car but hook up with the car above and he will be sucking my exhaust fumes)(i have beat many cars that was faster then me by all means at the track ...but once on the street they are toast)

Don't feel bad,... I've had a few cars considering I'M only 18. My 2.8L 1984 Camaro could smoke the one tire pretty good. I have a Chevelle 396 with 3:73's and Mickey Thompson Sportsman tires that are 29X12.50X15 and although they dont smoke too much until there really heated, If I nail it from a stop I can get the wheels spinning all the way through Third gear on my TH-350. Oddly enought I had a 1985 Monte Carlo SS that I loved as my previous daily driver. It sucked gas like crazy for everyday use so I got rid of it, but it was still one of the fastest cars I think I've owned. It had a worked 350 with just about every bolt on you could imagine. It had a rebuilt TH-350 with a Racing shift kit, and BFGoodrich Radial TA's that were pretty massive. (Not as big as the Chevelle). Anyway with 3.55 gears, I kicked ass when racing imports light to light but was NEVER able to light the tires up, or even get them to chirp. The engine just bogged down and the brakes fought me. Could never quite understand that. Now, I have a 1997 Pontiac Grand Prix GT 3.8L V6. Front Wheel Drive my friends! Normally sucks,... but this particular car can leave skid markS (Posi I guess) longer then the Chevelle, and a hell of a lot more smoke. One day the car just disappeared in it! Its got stock tires! Never could understand burnouts