what is an average 1/4 mile time for a relatively stock 302 in a 1971 grabber. The 302 has a 4 barrel intake with carb?
There are so many things that would effect the Et and mph, it would be real hard to predict. Tire size, gear ratio, trans type and many other factors. Just for a good all around figure I would guess about 15 to 17 seconds on a bone stock car. Some drivers could cut that to less and some more, track condition and weather also play a big part in the equation.
One piece of advice from me would be to take the car out to a track on a relatively good day (low humidity, not too windy, not to hot) and see how you run. I have a V-8 with intake, 4 barrel carb, headders, and a newly rebuilt engine, otherwise it is stock (tranny, differential, gears, etc) and I only ran a 17.4. Everyone will tell you that their mav ran 15.0 stock but that is a point to ponder. More often than not it takes a lot of money to run less than 16.0. Just my 2 cents.
Hey jerilyn. You should take a look at your combination. Maybe a carb too big? My bros 91 escort ran a mid 17 quarter mile with 90 horsepower. My mav with a 2 bbl carb and 302 with a dead cylinder will run that. Please don't take this as insult, sounds like you have a real awesome combination, and you have done all the right things, now you need to tune it. Try going to the track again, I bet those times will drastically improve with practice
my times I have run a quickest of 13.04 secs qtr. mile... running a 306 w/4spd toploader and 4:11 rear. Suspension is stock with some slapper bars added and my tried and proven frame connectors. I will tell you this that running below 14 secs for me takes all my concentration and getting the car to settle down when I hit second gear takes patience. I go thru the traps at a little over 100 mph usually and the rpms are usually in the 7200 range. This info tells me I am making my speed up on the tail end of the track. Getting out of the hole with street tires and a 4 speed is a chore, but I wouldnt change it for anything. It is still the biggest thrill out there for me. Dan
Jerilyn I agree with jeremy. Your car has some kind of problem. It shouldn't take a lot of money to get in the 15s. Of course it depends on your definition of 'a lot'. But something in your combination is off, maybe too big a cam, timing off, too big a carb, or something else.
I know that I need to tune my car, I think that with a little adjustment to the timing I could be doing a lot better. All I was saying to the original post was to watch out for people who say that their car goes "so fast" bone stock. By the way I don't have a cam, I wanted to keep the gas mileage I have and I know that if I had one in there my wheel spin would be even worse than it is already. Also I live in a semi high altitude about 3200ft above sea level at a track that is majorly windy all the time, and the temp stays about 95-107 degrees from June until Halloween. Taking all of these things into consideration I am not doing too badly. And one more thing my engine is barely broken in (about 1000 miles) so with time I can probably get it a little faster. I think that my main problem is timing. Thanks Jeri
Not to worry, you have a good running combo and will get better with time and maybe a little extra money. The "My cars faster than yours" theory is a natural reaction by most gearheads, it is the compitition element in all of us. Do you have a time slip to post or could you give the info to us? My assumption is that your are a little slower on et's because of the launch times, tire spin etc. Are you just blinking the stage light on or are you bumping into it a little? A lot of racers bump in a little to better their reaction time but this also slows down the et because of the roll out factor of the front tires at the starting beams. If you go to Prestage.com there are several articles on this and also a good practice tree for reaction times(NetHoleshot) Have been at this racing stuff for some 50yrs and I still learn something new at every race meet. I think you will find that it takes time and some money to gain a tenth or so. The faster the car goes the more money it takes to increase it's potential just a few hundreths. You are on the right track and just be patient and work at it slow. The main thing is try not to get to frustrated and "Have fun" thats the name to the game.
Thanks Dave, Basically I just wanted to be extra clear. I am very aware of what I need to do. I just seems that some of the new people who come to the board asking for help sometimes get, in my opinion, somewhat unrealistic answers. Some of these people are kids with little to no money and they ask what times they can expect to run and some people, please let me stress not all, some tell them unrealistic et times. Also to most people (especially those new to fixin up their car) to spend a thousand bucks on mods that will not do a whole lot but maybe a few tenths is a lot of money. I understand that to some people on this board they have it to spend so it doesn't seem like a whole lot to them but keep in mind that some of us are high school/college students with very little money. Thanks Dave
jerylin, your right it does cost a lot to go fast. however in bracket racing your probably better off trying to make the car more consistent. i know, everyone, including myself wants to go faster. but that's why they call it bracket racing. i run low to mid 13's with my maverick and 2 weeks ago i got beat by a 19 second car. that's the fun of it, any one has a chance. good luck, maybe we'll see each other at a track sometime.
having fun yet??? ET slips is the only real truth. Anything else is just quessing. Even the old 60s and 70s "musclecars" were driven with pro drivers and after pro tuners and done their thing. Even then they lied about the numbers. The older musclecars rarely ran in the high 13s. Most did mid 14s on a good day. If you're running in the 15s be happy. 16s, the gears, trans, and engine need some tuning. Driver tuning is also a big factor.
Stock 1/4 miles In the January 1971 issue of Motor trend in a comparison test of the Comet GT, Nova SS 350, Dodge Demon 340, and a Hornet SC 360, the Comet with the floor mounted three-speed and 302 took 8.7 seconds to 60, and 16.3@83 mph in the quarter. It was also the least expensive car in the group, and the only one with two barrels, not four!
Maverick Time Slip Thought I would take the 73 4dr Mav to the strip last saturday for test & tune. Bought this car a couple of years back for 500.00, 6cyl. auto with 87000 mi. Have done nothing to it but drive and show it. Thought the time was pretty good considering spinning off the line with one tire. Add about another second and a half for the last 320ft(1/4mile total). Made two passes at almost same times and then it started to rain. Fun is the name of the game anyway.
