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Old 08-22-2020, 06:57 PM   #1
flatjack9
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Default Took the 39 to the drag strip

Went to a car show today and they were having nostalgia drags. Ran the 39 with a best et of 18.55 at 72.4 mph. Calculated horsepower form these numbers and came up with about 90 hp at the rear wheels or about 106 at the flywheel. Ouch! On the bright side, I cut a .12 reaction time on my last run. I did have a ball. Haven't been a dragstrip in over 40 years.

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Old 08-22-2020, 07:02 PM   #2
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Default Re: Took the 39 to the drag strip

COOL. Always love to watch the drags. Glad you had a great time.
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Old 08-22-2020, 07:21 PM   #3
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Default Re: Took the 39 to the drag strip

Careful, Jack, you might get the bug to start "tweaking" the '39!
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Old 08-22-2020, 07:24 PM   #4
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Default Re: Took the 39 to the drag strip

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Careful, Jack, you might get the bug to start "tweaking" the '39!
Did cross my mind. It is 276 cubes with a 4 barrel.
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Old 08-22-2020, 11:06 PM   #5
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Default Re: Took the 39 to the drag strip

"Ouch" is right. I would think that your car would be in the 16's. In 1961, we ran a '36 Ford coupe with a junkyard '41 Merc with "heads 'n carbs" and ran 16.44. This was at Minnesota Dragways, which was an NHRA sanctioned strip back in those days. The guys with stock flatheads ran in the 19's.
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Old 08-23-2020, 02:07 AM   #6
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flatjack9 is the kind of guy that likely 'maintains' his car fairly well. This "episode" of Jack's should prove that it is possible to kind of 'lean-on' these old drive trains, IF ya KNOW what you're doing with a little 'finesse' and don't just 'HAMMER" on it stupidly with abandon. My God, I probably haven't seen a flathead go down a drag strip since about 1968 or '69. Jack....did they have you running something like G/Gas? DD
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Old 08-23-2020, 07:15 AM   #7
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Default Re: Took the 39 to the drag strip

I think Jack's E.T. is about right. I ran our tow car with a 286 engine a few times back in the early 1960's. It is a 1946 Merc 4 door with many spare parts and tools for the Dragster on board. My times were in the high 19's and low 20's. 4.44 rear gear and Columbia.
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Old 08-23-2020, 09:20 AM   #8
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Default Re: Took the 39 to the drag strip

IMG_0833.jpg
My '39 on the drag strip.
It faster than a VW.
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Old 08-23-2020, 09:58 AM   #9
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Default Re: Took the 39 to the drag strip

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flatjack9 is the kind of guy that likely 'maintains' his car fairly well. This "episode" of Jack's should prove that it is possible to kind of 'lean-on' these old drive trains, IF ya KNOW what you're doing with a little 'finesse' and don't just 'HAMMER" on it stupidly with abandon. My God, I probably haven't seen a flathead go down a drag strip since about 1968 or '69. Jack....did they have you running something like G/Gas? DD
Probably something like ?/Gas. Just grudge racing. I did beat my pal with a flattie in his Model A. I did have a little traction problem off the line and 2nd gear got rubber. Went through the traps at around 3500 rpm. Running a 3.70 Bronco rear. Did 11.80 in the 1/8th.
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Old 08-23-2020, 10:09 AM   #10
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Default Re: Took the 39 to the drag strip

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Attachment 439867
My '39 on the drag strip.
It faster than a VW.
It should. A stock 1970s VW 1300 is rated 34 to 50 HP
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Old 08-23-2020, 10:23 AM   #11
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Default Re: Took the 39 to the drag strip

When I ran my '34 more-door Sedan as a 16 year old at the 'Antique Nationals', with a new 286 cube flathead (first flathead I built), I ran consistent 15.21s, 15.22s with a 4.11 rear. In retrospect, I guess that wasn't too bad of a time for a big-fat sedan on 3 carbs and a kid's first drag race . . .

Somehow I managed to win my class/bracket - which was quite a thrill for a rookie. I think I was the only 'kid' with a car . . . most the guys were decades older than I was. Most of the people I met were very supportive, though a couple of the guys I beat were really pissed that a snot-nosed kid somehow beat them - which I thought was pretty funny at the time.

My mentor was Joe Reath . . . he came by in his big blue Lincoln, just to see how I did. What a great guy ole' Joe was to me . . . treated me like family, not as a 'customer'.

34FirstYearAntiqueNates5 copy.jpg

34FirstYearAntiqueNates6 copy.jpg

34FirstYearAntiqueNates3 copy.jpg

Hays003.jpg

Hays_2.jpg

IMG_0476.jpg

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Old 08-23-2020, 11:15 AM   #12
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Probably something like ?/Gas. Just grudge racing. I did beat my pal with a flattie in his Model A. I did have a little traction problem off the line and 2nd gear got rubber. Went through the traps at around 3500 rpm. Running a 3.70 Bronco rear. Did 11.80 in the 1/8th.

I forgot! Seems like it's coming back to me now...you have one of those RTS 3-speed + O/D transmissions, don't you? If so, which 1st gear ratio is in yours? DD
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Old 08-23-2020, 11:21 AM   #13
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Default Re: Took the 39 to the drag strip

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When I ran my '34 more-door Sedan as a 16 year old at the 'Antique Nationals', with a new 286 cube flathead (first flathead I built), I ran consistent 15.21s, 15.22s with a 4.11 rear. In retrospect, I guess that wasn't too bad of a time for a big-fat sedan on 3 carbs and a kid's first drag race . . .
Memories of the old days!
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Old 08-23-2020, 01:11 PM   #14
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Default Re: Took the 39 to the drag strip

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I forgot! Seems like it's coming back to me now...you have one of those RTS 3-speed + O/D transmissions, don't you? If so, which 1st gear ratio is in yours? DD
3.25 first gear
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Old 08-23-2020, 01:54 PM   #15
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Default Re: Took the 39 to the drag strip

3.25 1st gear with a 3.70 rear axle shouldn't be too bad off the line.
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Old 08-23-2020, 02:03 PM   #16
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3.25 first gear
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Old 08-23-2020, 02:08 PM   #17
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Default Re: Took the 39 to the drag strip

[QUOTE=Bored&Stroked;1923188]When I ran my '34 more-door Sedan as a 16 year old at the 'Antique Nationals', with a new 286 cube flathead (first flathead I built), I ran consistent 15.21s, 15.22s with a 4.11 rear. In retrospect, I guess that wasn't too bad of a time for a big-fat sedan on 3 carbs and a kid's first drag race . . .






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Old 08-23-2020, 02:10 PM   #18
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Default Re: Took the 39 to the drag strip

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Attachment 439867
My '39 on the drag strip.
It faster than a VW.
I found my old time slip.11.34 @ 61 MPH in the 1/8 mile.
265 cubic , 2 Holley 94, schnider f260 cam, EAB heads, T-5 Trans, 3.5 gear.

according to the drag strip calculator it should be about 120-130 HP.
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Old 08-23-2020, 06:55 PM   #19
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Default Re: Took the 39 to the drag strip

[QUOTE=Bored&Stroked;1923188]When I ran my '34 more-door Sedan as a 16 year old at the 'Antique Nationals', with a new 286 cube flathead (first flathead I built), I ran consistent 15.21s, 15.22s with a 4.11 rear.

I never saw a flathead run that well around Iowa, but I never saw one without the rear door handles either. Musta made a difference! LOL
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Old 08-23-2020, 07:44 PM   #20
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Default Re: Took the 39 to the drag strip

Weight is a big issue, there is a lot of weight difference between a full stock body and one that is stripped down. Something like a seat is heavy!
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