Let me tell ya a little secret. In So-Cal, we have a little jewel of a track, and now you can go play on it on the cheap! Adams Cart Track, yes, a go-cart track, is open to street cars on tuesday and thursday nights. GO-CARTS? well, this is no indoor slick track. Adams is a .7 mile roadcoarse, with all the trimmings, the track surface is 30 to 40 feet wide, and features chicanes, and banked and flat curves. Tuesday night is “Grip” racing, or time-attack (autocross) and Thursday is Drifting. All street legal cars are welcome, tech is pretty simple, helmets required (you can rent for $5). Adams is in Riverside, off of the 60 fwy at Market st, north for 1/2 mi. Heres how it works. Show up, Sign up, pay $20 for a 1 hr session. 20 cars max per session. In groups of 4, the starter lets you out on a staggered set, about every 15 sec. You run one lap to warm up, one for time, and one to cool down, then exit to pit road and get back in line. you’ll get four timed runs per session, about 12 track laps. – Not bad for 20 bucks, and NO CHANCE OF A TICKET!!!!
Tue june 22: first time out for the bullit. Everything went pretty well I have changed from a GM p/s pump to a KRC pump from Motorstate. The cavitation at high RPM is gone, and I have consistant steering all around, way better than before. Well worth the 180 bucks. best lap 53.22 sec fast Miata’s rum 48 – 49 sec. the bullit has a bit of a push in the front.
Tues june 8: We took off the Shockwaves to try Romic coilovers. 550 lb in front, 250 in the rear, the rear is leveraged 1.65-1, so this is efectively about 170lb spring rate. It feels a little tighter, and more consistant, but has more push. The rear has much more grip, not sliding around any more ( I did spin once) best lap 52.87
Tues june 15: Ok, so the base set-up of a Wide-Ride IFS calls for 3 to 4 deg of caster. With a 10” wide front tire, I may need a bit more. By flipping the upper A-arms side to side, thecaster range changes from 2-6, to 6-10 deg. I swapped and set the caster to 6 deg. ( was 3), and went out. The truck goes in better but still has a bit of a push, less than originally had. after a few laps, i tightened up the rear rebound on the shocks, helped a bit. best lap 51.41sec. Now we’re getting there. Chad, an O.C. local who has a very nice pro-touring camaro showed up, so I stayed to cheer him on. He ran a few mild laps and then a 51.48. nice! I think he’s hooked.
There are many ways to tune out the push, but I only want to make one change at a time. And, I don’t want to cut/weld anything. So, I am going to try a smaller front sway bar. Now it has a 1 1/4” x .250”wall bar, I’m going to swap for a .188” wall bar. (mostly because I have one) I’ll let ya know what happens.
Wed. june 21: Last night went pretty well. The guys that organize the event changed the track layout, so it makes comparing times a bit difficult. We had to judge the sway bar change on feel, and how we did against the other cars. The track change addedtwo tight turns, a banked 220 deg right, and an immediat 90deg left, and a tight chicane on the mid-straight made of three stacks of tires. The tire stacks were pretty reasonable to negotiate, if you had a Miata, a Mini, or a skateboard. Needless to say, it was tough to get the truck through at any speed, and i did get some new ‘track graphics’ from some of the tires. The good news is that the truck feels more nuetral, and turned in better than ever. Fast lap for me was 57.19sec. fast lap of the night was 53.86. I am now beating some of the Miata’s and a few Z cars, and last night a new Shelby Mustang. Small, light cars with sticky 100 treadware tires have the advantage for sure, But I’m catching them, and have earned their respect now.
July 26: A great night, Some guys from pro touring .com came out to give it a try.The track was back to the usual set-up, and it was’t too hot (about 90). My change this week was to add more caster. i’m at 8deg now. WOW, it turns. I check tire temps with a heat gun after every run, and for the first time I’m getting even temps all around. Herb Adams bok makes a few comments about caster and wide tires, but is not to specific. Well ADD some MORE! I ran a fast lap of 49.25sec. and backed that with a 49.36. No fluke! At these speeds, a few things show up. I may need a stiffer front springs, also, I think i can now go back to the bigger sway bars. ONE at a time.