SMF - Just Installed!
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We used to have a line lock wired too, but he hasn't had issues rolling through the lights, so he doesn't use it
He's obviously never raced at Beaver Springs...lol But instead of rolling through the lights, you roll backwards.
I don't use my line lock to stage, just to do the burnout. It got old doing the old clutch drop stab the brake dance.
Are you launching on a rev limiter? We've had good luck on a 440 inch Rat that runs about the same times by holding it to the boards and letting the limiter hold it on a launch pill. Takes one less movement out of the equation
That should be able to push enough fuel to not lean out. Might look at the pump shot. Start the car, run it to your launch rpm and see how far the throttle is open. Then shut it off. Compare that setting to how much pump shot is left, even on the back side. I would likely bet you aren't that far into the throttle to use up the pump shot. Maybe move the pump cam to the next spot and see if that gives you a later shot. Cheap way to test it.
What carb are you running?
The more pressure you run in a DR the quicker it goes, up to some point. So here's another problem to consider - if you want to induce some spin in your launch program, you may need to switch to slicks. DRs do not recover well from spin like a slick. They dead hook or blow off, not much in between.
...If something breaks, then replace it with something stronger.
Yup, the higher the RPM, the quicker it is recovering/less bog and it will go faster.
You have 3-4 more tenths in it if you can get it moving. I used to go 11.5's at 116-117 mph.
what rpm are you dropping the clutch at on the tree?
For a quick change, take off the 90/10's and put a stock shock back on. That might slow the front end down and help take some of the bite out.
How tight is the gap on the slapper bars? Make it tight, so it doesn't allow the tire to dig in as much.
I'll also add that you'd only want to go to a taller tire to increase your contact patch, as in having traction - spin - problems. If you are not having spin issues, then go up a gear and leave the tires.
My guess is the Close ratio toploader is causing all the problems. They were fine if you have 4.88 gears in the back and slicks from the 60's that spin real easy.
What for shocks are you running? Traction devices? You need to tighten things up to not allow so much bite. Tighten the front end so it doesn't rise, tighten the rear so it doesn't plant the tire.
How about no burn out? Skip the water, just stage and go. A heavy clutch and no gear ratio is hard to get moving.
So is the car bogging off the line, is that the reason you want a deeper gear? Yes, putting a bigger tire and equally more gear is not going to help, likely make it a bit worse. You need some tire rotation(spin) to help keep the motor up in the power.
If you think about it, there has to be a way to disengage it after launch. You just need to invent it...
