A couple of buddies and I are heading to strip next weekend for 2 days of non-stop passes! It'll be interesting to finally see what my car runs, and hopefully what it weighs, as well as actually tune on it based on ET/MPH. I'm sure the carb could use some dialing in, along with fine tuning the timing. Anybody have any tips, tricks, suggestions, etc? I've raced all my life, but always circle track and road course stuff. I should have a set of slicks to run with (26x9), or a set of sticky autocross rubber (205/50/15, small I know). Anybody want to guess what it'll run? :beer
14.5 off the trailer and high 13's after a bit of a tune. I have no idea what your internals are. Just a guess based off the info in your sig.
Assuming you are going to Rock Falls. 14.7; Cedar Falls 15.1. Good luck! It will be fun no matter what you run!
Good luck! As far as tires go, try both but I like a short tire with low pressure...I run about 25 lbs with stock 225 radials, and that seems to work for me. Phil Roitman seems to be the king of the street radial launch with his 73 GS, he wrinkles his Firehawks like a top fueler, I'll ask him what presure he runs.... I hope you have a great time and dont break anything.... what does your car weigh?
Good luck Andy!!! Should be a great time. Only tip I have for you, is make only one change between passes! If you start tweaking multiple things between passes then it makes it hard to figure out what helped and what hurt and you end up chasing your tail. If you haven't been to the track yet in the car, make several passes on it before touching anything regardless of what it runs to get a good baseline and then go from there. I am curious to see what the car does as well. Also make sure to get all the weather conditions recorded cause those will tell you about the car as well. Temp, Humidity, Barometric Pressure(this is the big one), Wind Direction and Speed. With the Uncles race car, from what I am told and have found looking through his records is the car doesn't much car what the temp is for the most part, but the pressure makes the difference. But for what you are doing, if you can have two days of similar weather then you should have a productive weekend tuning the car.
I suppose it would help if I posted my full combo... ou: 401 bored .030 over, ~9.4:1 compression, relatively stock rebuilt heads, Thumpr cam, stock rockers, ported factory intake with 7/8" open spacer, Holley 850cfm DP, sealed ram air induction from cowl, ported exhaust manifolds with dual 2 1/4" Flowmasters (planning on running open exhaust though), recurved distributor with a Pertronix Ignitor III, manual valve bodied ST400 with an aggressive shift kit, V6 ST300 converter (flashes to about 3k), and a VERY TIGHT 3.23 posi from a low mileage '63 Wildcat. Were actually heading up to BIR. If I had to guess, it probably weighs 4000-4100lbs or so. I've done quite a few things which have lightened it up, like swapping in the ST400, removing the heaterbox & blower motor, and even converting to an alternator. It all adds up! I'd be damn ecstatic if I could run a sub 14sec pass. I think everything is going to have to be damn near perfect for that to happen, but that's the goal I'll be chasing.
http://www.wallaceracing.com/hp-correction-quarter.php This is a great calculator for figuring how the weather affects ET, and calculating rear wheel HP from ET.. From what I've been able to find, Brainerd is running a DA of about 2700 ft for late August. With that in mind, you'd need about 270 RWHP to get into the 14's. From your set up, you might be close....my 65 has a stock long block with 80k miles, Q-Jet and 2.5 exhaust (and other various Doc approved mods) and makes about 245 RWHP according to my best ET's and MPH. Unlike Johnny's uncle, my car is really affected by temps AND pressure....BTW, his advice for track tuning is right on the money... and I've broken those rules many times, only to screw myself. my only additional advice is mix in 5 gallons of 108 octane race fuel to be able to get full timing without detonation...at least thats what I have to do. If you've got traction and weight transfer, you should hit 14's just fine. Good luck and keep us posted!
Andy-there's usually quite a number of racers and it can get pretty backed up. They also used to have Weds evening drags, too=that wasn't so jammed and would allow more runs. Not sure if they still do that tho-good luck
I'm heading to the strip next weekend as well with my "Wildcat 2", so I'm keen to see how yours is going to do.
Gotta pay closer attention! Still, good luck and have fun. Some of the best racing I've had was also my slowest, just pitted against a guy (in a 68 Road Runner 383)who was exactly as slow as I was! keep us posted!
Hah, your not the first person who thought it was this past weekend! I'll admit I've been slacking. Moved two weekends ago, got married last weekend, and just got back from our honeymoon yesterday. Sticky rubber likely won't happen, or open exhaust. Even if I two day'd everything I wouldn't have time to get everything ready before I left. So all runs will be 100% street trim. Honestly it's probably better that way the first time out. Hell, I'm still trying to get my new truck ready to haul everything. I've got a spray in liner scheduled to go in Wednesday and then my buddy is helping me install a tonneau cover Wednesday night. Since it looks like I'll be launching on regular BFG Radial T/A's, anyone have a suggestion where to start with air pressure? I've got 255/60's out back with "some tread" left.
Andy - you've been busy enough! Congratulations. I'd start at 27 lbs pressure, then work your way down to 23 at the lowest...I generally go 25-26 and do fine on reproduction redline radials.....
Wow Andy, you have been busy. Congradulations...wife ,house, truck and trying to get ready for drag strip. Good luck ou::beer
