cmann's heading down the 1/4 mile

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cmann's heading down the 1/4 mile

Postby cmann250 » Mon Mar 11, 2013 7:15 pm

So...

I practiced some launches on a certified local drag strip (County Road 800S to be precise :lol:) and I'm aching to get it down the 1/4. I have a question about traction.
Note that I have 235s and a 2wd.
I currently have several hundred pounds of concrete hog slats (400-500 lbs if I were to guess). Are these giving me traction or weighing me down?

I was shifting on the column and I felt like I had a decent launch today. I didn't feed it too much boost and didn't spin the tires very much. I did have some junk slide off the dash on me :mrgreen:

What do those with drag racing experience think about this?
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Re: cmann's heading down the 1/4 mile

Postby oldestof11 » Tue Mar 12, 2013 4:08 am

Clean your bed out and only add the ballast you need (200 or so pounds) right at the tail gate.

FWIW, my old 2wd 93 could hook decent (5-10psi before doing a burnout) on the street with 255 MT. Once at the track a couple days later, it wouldn't hold more than 5psi.

Otherwise I would flat foot it once the bottom bulb lit. Being an auto, there wasn't much of a time difference.
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Re: cmann's heading down the 1/4 mile

Postby cmann250 » Tue Mar 12, 2013 2:57 pm

At lunch I took the hog slats out of the bed of my truck and took the long way home. Long story short, I need some weight back there. I have to reconfigure some things since my slats are 6' long and they won't fit side to side.

I know where some almost bald 285s are (prime for drag racing), but that's getting pretty serious and will just result in finding the weak link. I'd rather not do that.

Anyone have some thoughts here?
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Re: cmann's heading down the 1/4 mile

Postby oldestof11 » Tue Mar 12, 2013 4:18 pm

cmann250 wrote:I know where some almost bald 285s are (prime for drag racing),


Not really. Better than 235's but not enough to break something. Especially being 2wd.

Heck, I do 3500 rpm clutch dumps in 4wd and have yet to break anything. I also have 33x12.5's which is almost equal to a 285/75.
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Re: cmann's heading down the 1/4 mile

Postby cmann250 » Tue Mar 12, 2013 5:34 pm

It is true that I have a pretty efficient driveline sponge living behind the engine.
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Re: cmann's heading down the 1/4 mile

Postby Tacoclaw » Tue Mar 12, 2013 5:59 pm

My dragstri experience was similar to Jon's, in that I could marginally hook up on the street launching in 2wd (no front DS for a while), but once I hit the track it was like a sheet of ice. If you've got no locker on a legit track, put the weight against the back on the spinning tire's side and pray.
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Re: cmann's heading down the 1/4 mile

Postby PToombs » Wed Mar 13, 2013 4:49 pm

I was told don't let them wet the burnout box. The tires pick up the water, and while you are sitting on the line the water runs down under the tire. Spin city!
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Re: cmann's heading down the 1/4 mile

Postby oldestof11 » Wed Mar 13, 2013 6:21 pm

If they let you drive around it, DO IT!

If you have a posi and want to be a crowd pleaser, go ahead and drive right through it. The announcer and crowd were going nuts when I did a 100mph burnout like a dragster. The guy at the lights wasn't pleased but the announcer loved it. I think the announcer wins though, he owned the track.
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Re: cmann's heading down the 1/4 mile

Postby cmann250 » Wed Mar 13, 2013 6:22 pm

Yea, I'd stay away from water. Now that I think about it, I had all my weight on the passenger side (the side that tends to spin) originally when I had what I thought was a good launch. It's just spinning through 1 without weight. It comes on pretty good half way through 2 and through 3.

I need to put together a transmission worth its salt too :roll: Hitting the stall on the converter feels good, but I wish it was sooner.
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Re: cmann's heading down the 1/4 mile

Postby Sutter1stgen » Wed Mar 13, 2013 9:21 pm

I'd hang weight off the back. A buddy of mine took 1-1.5" plate and hung it from his tow package, and he spanned it across form frame rail to frame rail. It was all bolted on, so there was no welding. If it were me I'd do something similar. But I'd bolt it to the bed that way it would be easier to remove. I've seen old el caminos with lead ballasts that wrap the fenderwell in the bed.

And I've also found that stock converter autos and long burnouts don't = as hard a launch and pull. Especially on hot days. :lol:
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Re: cmann's heading down the 1/4 mile

Postby turboram » Thu Mar 14, 2013 7:49 am

I put my fuel tank across the back of the bed and also moved everything I could back there. removed everything up front possible even inner fenders . I built an adjustable panhard bar on the rear axle it would lift the LF tire at the drag strip and on good road it could launch at full boost and spin very little . this was a gas shortbed though ...... the truck pulled 1.56 60' with a 225 slant six
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Re: cmann's heading down the 1/4 mile

Postby RumbleFish » Thu Mar 14, 2013 9:15 am

Thres no reason for a big burnout with street tires. They just get greasy and slip more. Maybe turn it a couple times to dust it off and quit. Drive around the waterbox. You can also play with tire pressure to lower the wheel spin.
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Re: cmann's heading down the 1/4 mile

Postby cmann250 » Thu Mar 14, 2013 5:09 pm

The thing is, I'm not all that serious about this. It's just for fun. I can't loose leaves in the springs or do any suspension mods because this truck works. I'm not against traction bars, but I don't think I need them. It's just fun racing.

I think that aired down 285s on a spare set of rims on the rear is the ticket, followed by a locker or some sort if I don't get bored racing a stock truck. A locker probably won't happen soon :lol:

*whisper* I went 1-1-1 vs a Dmax last night. The loss was due to shifting into Neutral. :oops: He was in 2wd and beat me off the line, but the Dodge came on hard on the back half *whisper*

:jumpsmile:
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Re: cmann's heading down the 1/4 mile

Postby BC847 » Thu Mar 14, 2013 6:23 pm

cmann250 wrote:The loss was due to shifting into Neutral. :oops:

Been there, done that . .. . . . a couple a times or so. :roll:
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Re: cmann's heading down the 1/4 mile

Postby BC847 » Thu Mar 14, 2013 6:33 pm

Sutter1stgen wrote:And I've also found that stock converter autos and long burnouts don't = as hard a launch and pull. Especially on hot days. :lol:

This. Aftermarket converters as well.

Hot trans fluid is thinner than cold fluid. A cooler fluid will result in a somewhat "tighter" converter. If you hold the brakes and build boost to launch, DO NOT be the first to fully stage, build boost first thing and hold it while your opponent . . .gets around to it. You'll heat the fluid very quickly and you will go slower. A lot slower.

- Get pre-staged and wait for the other guy to do the same. Let him fully stage and you THEN quickly build boost to your launch figure, creep forward to fully stage (don't be slow doing this). Launch just before half-way through the third light.

>GIGGIDY<
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