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1974 chevy. Ova
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Discussion Starter #1
new best tonight of 7.94 at 89.5mph. finally got my 60fts down to 1.8. i thought this would slow down my mph but it keeps going up! there's a long story here, and tomorrow i'll post the timeslips but right now it's time for bed. so close to a 7.89...i've got three weeks to mull over the details and decide my next move. i'm pumped!
 

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thats awsome, its always sweet to reach your goals. too "bad" it always on to the next best et or mph :D
good job
steve
 

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Right On!! Your times sound alot like mine last year. 1.87 60ft. 7.99 1/8 @ 87.9 mph. We would have had one sweet race.:)
Brandon
 

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Discussion Starter #6
ok here's the best one

r/t- .244
60'-1.850
330'-5.190
1/8-7.949
mph-89.51

we had a lot of carb trouble last week but by the end of the night had managed an 8.15 and an 8.17. i felt like we had most everything figured out but when we were unable to hit even an 8.3 we decided to switch carbs (from an 850dp downleg boosters dual power valve to a 650dp straight leg boosters single power valve) and it picked up to 8.22 right away. next was a 7.98, then a 7.94, 8.05, and 8.01. the last two i was ruffled...a guy cut me off to get into the lane he wanted and i nearly nailed him. he was in a yellow TA and when we got to the return road (myself a full three seconds ahead of him) i gave him some sign language going around the corner onto the return road. anyway, my burnouts weren't as good because i was stewing about it and so i lost a tenth off of my 60ft.

dave, i haven't played with my suspension at all. i've got summit drag shocks front and rear and slapper bars (tightened down against the eye, but no further) on stock leaf springs. i've been through motors too fast to work on my suspension. just when one gets dialed in it blows and i have to start over. so that's on the agenda. i could see a torque converter change as necessary too. i may not have the bottom end torque for this one...altogether i think i could see a tenth or two off of the 60ft, and that should add up to one or two at the end of the track. that could put me at a 7.6! that would put me right where i want to be (still in the sportsman brackets and out of rollbar territory). i have a set of 4.56's but i don't want to put them in because i know a certain car that's setup very well hooks better than mine with the same gears i have now ;)

p.s.7.89 is significant only because it begins with 7.8 :D. baby steps dave, baby steps....
 

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Congrats. I was pumped too last year when my car with a 396 motor turned a 7.96 at 86 mph. This year I've made the 6's now.
 

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Not to bad talk ya or anything but what does a 7 in 1/8 transform in 1/4 mile time?? 14's

I've never ran an 8th mile track and get 13.10's in the 1/4 which is fairly decent, I think.
 

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NIGHTSHADE said:
Not to bad talk ya or anything but what does a 7 in 1/8 transform in 1/4 mile time?? 14's
i just ran his numbers into an online calculator and got this.

1/8th ET of 7.949 sec = 1/4 Mile ET of 12.47 sec
1/8th MPH of 89.51 MPH. = 1/4 Mile MPH of110.99 MPH

i know these are rough calculations, but i bet its kinda close...
 

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Discussion Starter #12
i know it's not all that quick, it's all about the journey getting there. with this mph i think there's 7.50 potential (12.0's). we've struggled a lot to get the car tuned in with breaking parts, time constraints, and vast amounts of inexperience :D.

i crunched the numbers and came up with some averages:

avg range
60ft- 1.921 1.85-2.05
60-330ft- 3.343 3.308-3.349
330-660ft- 2.766 2.742-2.801
mph- 88.996 88.21-89.79

this is all with the 650dp on there. ET's ranged from 7.94-8.05 with the 650 (after the initial 8.22 run). the 850 numbers are all crappy 60fts (2.10's) because it would bog like hell when i punched it. it was cutting out and really struggling when i tried to get up on the converter. it may be a power valve or accelerator pump deal. when i'm home in two weeks i'll spend some time dinking with it. 60-330ft times are slow by a tenth with the 850 but 330-660's are only half a tenth slow. the differences get smaller toward the end it seems. if i can get it worked out it may eventually run better with the 850.
 

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Discussion Starter #13
oh and i need a new helmet. apparently mine expired 7 years ago. whoops...what's the new rule on helmets? i've seen it up here before i think but forgot what it was. 2000 rating?
 

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Helmet rating is snell 95 and up. I would get the most current Snell rating, as the 95's are only good for this year.

My .02 here, but I think the 850 will be way too big for that engine. I would recommend a 750. I think you will have better consistency with that than the 850.
 

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When I was running 7.20s in 1/8 mi I was going 11.50s in 1/4 mi. Not sure about the MPH since that was a long time ago.
 

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12.40's is decent. The only reason I asked earlier is because I don't know how to do the math.:eek:

I'm just hoping that the 'Bringer will be in the mid 12's when I'm finally stripable!
 

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Discussion Starter #17
yeah i've been planning on a pro systems 750 and have been building the funds to purchase it.

how long will the 2000 rated helmet last? i can get a 2005 for about $40 more but if the 2000 will expire in two years it's more than worth it. i'm pretty sure my head is done growing :D
 
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