You start with a quart of the 50/50 mixture and add the WD and/or the ATF to that. The automatic transmission sealer, when substituted for the ATF, opens the pores in the rubber and allows the other chemicals to do their job more deeply. I've heard of some pretty wild drops using the basic mixture plus diesel fuel as Harrym described - like he said, 60 down to pizza cheese; if you go that route, start out light on the diesel fuel and work up as you get a feel for how it's going to behave.you mix two 5 gallon buckets of toluene and xylene to gather then just add 4 ounces of sealer? or do you start with 2 pints of toluene and xylene?
Keep this in mind...different chassis's use the tires differently than others do. What i mean is, one guys kart may hook up and fly on a set of 33's prepped down to 35, while another guys kart may do just as good if not better on a set of 33's prepped to 45. Do you see where im going with this? The type of prep you choose to use plays a big part in how well your tires are hooked up and how the kart handles. If your on the wrong prep for the track conditions, you will either be out to lunch or will at least be a few tenths off from someone who has the righ tires and prep for those conditions. These last few weeks, i have been winning races left and right, so much that people actually accused me of cheating! And do you know how i won those races? I experimented with tires and preps until i found out exactly what worked best at that track and for what conditions, and as much as i hate to say it, goat pee is what has had me winning, along with tires that duro 40-45. Most people at this track wouldnt believe me even if i told them, mainly because i have never heard of anyone using goat pee at this track, or tires that soft, but truth is, thats what it has took to win races the last few weeks with the cold weather and this track. If you really want to drop the duro on those tires, get yourself some track tac BTGP red or SAA grape, either of those chemicals will drop a tire 15-30 points easy, but you have to apply with heat. First heat up the tire to about 90-100 degrees, then apply your prep, whether you wipe it or roll it on. After you prep them and they dry, check the duro. It may have dropped and it may not, most of the time you will not see the results you want from softening a tire until that tire has been on the track and had a heat cycle thru it. Im no expert tire man, but i do know what works and what doesnt and i do know how to soften tires. Hope this helps you out.Well here is the deal... I'm going to try this but a guy we run with showed up a week ago and I was talking to him and leaned over and put my hand on his tire and it felt like bubblegum, he wins all the time and the stuff he uses is very brown/black in color and has a yellow tint and it smells very prominent of pb blaster..... Any idea what that crap is?
Mixing industrial chemicals doesn't sound like a real good idea.Many quick acting home made preps are basically a 50/50 mixture of Toluene and Xylene; if you are in a hurry at the track, you use it as-is, if you wish to slow down the evaporation rate you add add 2-4 ounces of WD-40 to a quart of the mixture, if you want to slow it down a bunch more, you add 2-4 ounces of automatic transmission fluid to a quart of the mixture, with or without the WD-40. Here's where it gets to what you are looking for: instead of automatic transmission fluid, substitute automatic transmission SEALER, the stuff they sell to make the seals in old auto transmissions swell up and do there job again for a few more thousand miles before you need new seals (and probably a rebuild) because it's leaking so bad.
The automatic transmission sealer version of this old recipe is worth a try on your tires - go with the full 4 ounces. If you haven't played with home made preps before, Toluene and Xylene are paint thinners and can be bought at any paint store or found in the paint department at Lowes, Home Depot, Ace Hardware, and usually WalMart.