A little bench racing

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with 3.23s depending on tire diameter and stall a 6k shift drops you to 3200 ish
1st 6k
2nd 5700
 
I have a 440 combo with a solid flat tappet,with more cam, more gear, and more converter. With minimally worked 906s, it revved nicely to 6500, so I shifted there.
Then I tried 6200. It got quicker
So, i tried 5800/5900. Stayed the same.
So I've quit beating it up. As head limited as my combo is, rpm is simply not needed, or helpful.
To the op. First, I would try 5500. It actually might be quicker. I would bet it won't be slower. If it stays the same.... 5300.
 
MomsDuster said:
I want to be able to know what it’s capable of,
Click to expand...
In it's current configuration, it's capable of 106 quarters; that won't change much with sticky tires.
ETs are money-pits. Fully prepped in SuperStock trim you are looking at about 1 second quicker

My Barracuda did about the same with the previous 223/110 cam, also at 3650 pounds but at 900ft elevation; even down to similar 60fts. 106 was fast enough for me. I only went to the track the one time with that combo in 4 years. I only went for the time-slip, to post it in the window at carshows.
People would tell me how great 340s were back in the day, you know, going 98 in the quarter and how I shouldda built a 340. So when they see 106, I don't have to put up with that, anymore.
My engine is 360 based, being 4.044 x 3.58=367.86 cubes .... so I finally started calling it a stroked 340, which ended all the ignorant comments.
Yeah, I know; 367.86 rounds to 368, but I call it a 367, cuz it sounds smoother to me than 368, lol.
>It seems to me that if;
your 440 (231/237/110 cam) is going 106@3600pounds,
on 3.73s with a 3000stall, shifting at 6000 and
my 368(223/230/110 cam) is going 106@3650pounds,
on 3.55s with a clutch and shifting at 7000
Something
is not
computing.......
If I remember right, to go 106 at 3650 requires just 365 hp, which I thought was high for my combo......, but hard to argue about. I only made the one run that day, because I was sorta dumbfounded at the numbers, lol. Oh I should probably tell you, I was running OOTB Eddies at something like 190+ psi CCP, which is somewhat higher than your numbers; 180 was it?
If yur doing 106 with iron heads, @180psi CCP, have you considered that your engine may be detonating?
I mean detonation would kill your power.
Jus guessing.
 
Last edited:
AJ/FormS said:
In it's current configuration, it's capable of 106 quarters; that won't change much with sticky tires.
ETs are money-pits. Fully prepped in SuperStock trim you are looking at about 1 second quicker

My Barracuda did about the same with the previous 223/110 cam, also at 3650 pounds but at 900ft elevation; even down to similar 60fts. 106 was fast enough for me. I only went to the track the one time with that combo in 4 years. I only went for the time-slip, to post it in the window at carshows.
People would tell me how great 340s were back in the day, you know, going 98 in the quarter and how I shouldda built a 340. So when they see 106, I don't have to put up with that, anymore.
My engine is 360 based, being 4.044 x 3.58=367.86 cubes .... so I finally started calling it a stroked 340, which ended all the ignorant comments.
Yeah, I know; 367.86 rounds to 368, but I call it a 367, cuz it sounds smoother to me than 368, lol.
>It seems to me that if;
your 440 (231/237/110 cam) is going 106@3600pounds,
on 3.73s with a 3000stall, shifting at 6000 and
my 368(223/230/110 cam) is going 106@3650pounds,
on 3.55s with a clutch and shifting at 7000
Something
is not
computing.......
If I remember right, to go 106 at 3650 requires just 365 hp, which I thought was high for my combo......, but hard to argue about. I only made the one run that day, because I was sorta dumbfounded at the numbers, lol. Oh I should probably tell you, I was running OOTB Eddies at something like 190+ psi CCP, which is somewhat higher than your numbers; 180 was it?
If yur doing 106 with iron heads, @180psi CCP, have you considered that your engine may be detonating?
I mean detonation would kill your power.
Jus guessing.
Click to expand...
Why would you say drag radials wont do much?
106 mph should be 1.8 1.9 60 foots that drops him and easy 5/10s best move in the book
thats and easy .50 doing nothing else .50 is alot
 
AJ/FormS said:
In it's current configuration, it's capable of 106 quarters; that won't change much with sticky tires.
ETs are money-pits. Fully prepped in SuperStock trim you are looking at about 1 second quicker

My Barracuda did about the same with the previous 223/110 cam, also at 3650 pounds but at 900ft elevation; even down to similar 60fts. 106 was fast enough for me. I only went to the track the one time with that combo in 4 years. I only went for the time-slip, to post it in the window at carshows.
People would tell me how great 340s were back in the day, you know, going 98 in the quarter and how I shouldda built a 340. So when they see 106, I don't have to put up with that, anymore.
My engine is 360 based, being 4.044 x 3.58=367.86 cubes .... so I finally started calling it a stroked 340, which ended all the ignorant comments.
Yeah, I know; 367.86 rounds to 368, but I call it a 367, cuz it sounds smoother to me than 368, lol.
>It seems to me that if;
your 440 (231/237/110 cam) is going 106@3600pounds,
on 3.73s with a 3000stall, shifting at 6000 and
my 368(223/230/110 cam) is going 106@3650pounds,
on 3.55s with a clutch and shifting at 7000
Something
is not
computing.......
If I remember right, to go 106 at 3650 requires just 365 hp, which I thought was high for my combo......, but hard to argue about. I only made the one run that day, because I was sorta dumbfounded at the numbers, lol. Oh I should probably tell you, I was running OOTB Eddies at something like 190+ psi CCP, which is somewhat higher than your numbers; 180 was it?
If yur doing 106 with iron heads, @180psi CCP, have you considered that your engine may be detonating?
I mean detonation would kill your power.
Jus guessing.
Click to expand...
I was having an audible detonation issue early on with 36* of timing. That was handled dropping timing 2* to 34* that being said I have noticed a couple of specks on the plugs the last time I pulled them. So it’s certainly a possibility.

image.jpg
 
According to Wallace racing calculator, BEST 60ft and et for 106.7 would be 12.42, / 1.74. That is for a perfectly set-up drag car, with the right gear, and the right converter.
Get your 60 down to1.95, I think you should run 12.65/70. Tires, and some shift rpm experimentation could get you there.
 
I will definitely invest in some good tires and know I gotta work on the carb tune.

My best run was the 13.04 @ 106.56 November of 21.

In the last two days I’ve made Two runs.
13.20 @ 104.67
13.49 @ 104.82

Lost 2mph

The only real difference is the change in the main bodies to annular. Since the idle and cruise tune is real nice, never been smoother or more responsive down low looks like I’m going play with the secondaries next while I save up for the tires.
Thanks for all the input folks :thumbsup:
 
I picked up 2 tenths just by switching from Cooper Cobras to BFG drag radials, no other changes on a mild 360/727 with 3.23 gears. There is a definite improvement to be had with your combination.
 
If you're not planning for a bunch of track time buy some steel wheels and put some slicks on it. That's cheaper than drag radials and they will last, so will your street tires.
 
That thing is well out of wind by 6,000RPM.

Try shifting at 5,500 and make 2 passes, assuming the difference you see between the two is no more than 0.0X, increase the shift point by 200RPM and make another pass. Did it go faster? Go up another 2 until it falls off or yields no positive change.
 
AJ/FormS said:
>It seems to me that if;
your 440 (231/237/110 cam) is going 106@3600pounds,
on 3.73s with a 3000stall, shifting at 6000 and
my 368(223/230/110 cam) is going 106@3650pounds,
on 3.55s with a clutch and shifting at 7000
Something
is not
computing.......
Click to expand...
FWIW the car has 3.23 gears not 3.73 not sure if that changes the computation.
 
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