Good info thank you, I would imagine subframe connectors would be a must?Its a little tougher with a Mopar, especially an A-body because of the short front segment of the leaf springs. It results in a short instant center above the squat line, meaning it wants to lift the rear of the body and plant the tire (not a bad thing), but that also cuts down on front end lift. It's a physics thing.
That situation can be changed a bit with Calvert or assassin bars, but if you want a nice big wheelie..... long low ladder bars will do it.
Check out Kevin Wilson's leaf spring tutorial on you tube.
Be careful what you wish for. Your next post could be " How do I keep it down".
That's kind of a tough question because I'm in transition. I want to go through my 340 this winter so I have options. The builds will be between 450 and 500 horsepower with about the same torque. Gear ratios 391 tire size is 26 in 275 50 15 drag radials, 4 speed car , clutch rated for 450 horsepower, drive shaft rated for 500 horsepower, 741 , 8.75, new 6 leaf spring packs, solid motor mounts.
Torque + Traction = wheelie.
How you get there is the tricky part.
Lots of ways to skin a cat.
Okay your hypothesis is boring the problem with calculations is one or two wrong numbers and it all goes to s*** so thanks for telling me how I could better ask a question LOL but if you don't tell me how to ask my questions I won't tell you how to answer them.Cope says torque
which means torque at the rear wheels....
After it comes out of the trans and out of the rear axles....... so it really means TM/ Torque Multiplication.
With an automatic, that must also include what is coming out of the TC..
If you had an automatic to go with those 3.91s, your TM might be
Crank torque x TC ratio x2.45 first gear x3.91= say
400 x 2.0 x 2.45 x 3.91 =7663 ftlbs. But with an A833, it looks like
400 x 1.0( noTC) x2.66 x3.91=4160 ftlbs. or about 54% So don't hold yur breath.
What you need is a Commando box and 4.30s for
400 x 3.09 x 4.30 =5315, or about 69%
But hang on; that TC ratio of 2.0 is gonna diminish the instant that the car starts to move. By the top of First gear, it might be down to say 1.2 ish, so then 7663 becomes 4598.
But wait the torque is not a fixed number but changes continuously with rpm. So 30 ft out say, anything could be anything, and you don't have a convertor anyway, so all this is relatively useless information.
For low ET; You gotta gear your car to trap at a favorable rpm, so that Fourth gear can put the power down, on that long long haul to the traps. That means, with a 4-speed, whatever you get out of the hole is whatever it is. If you don't get enough air to satisfy your craving, yur gonna need a bigger engine. Or at least, more torque. Or maybe a Torque Convertor.or a power-adder.
But without the other factor Cope mentioned, namely "traction"; if the tires spin yur screwed.
I might have a better question and it goes like this;
What do you have to do to your car, to get yur 60ft down low enough, in order to get X-amount of air under the front tires.
I'll go first
2.2 to 2.4= zero air, lol; but still went 93 in the Eighth.
I would just like a couple nice pics of my 340 swinger with the front wheel snatched about a foot off the ground I don't need to be dragging the back bumper .Is this a one and done bucket list item, or a repeatable life adventure?
I would just like a couple nice pics of my 340 swinger with the front wheel snatched about a foot off the ground I don't need to be dragging the back bumper .
Cope says torque
which means torque at the rear wheels....
After it comes out of the trans and out of the rear axles....... so it really means TM/ Torque Multiplication.
With an automatic, that must also include what is coming out of the TC..
If you had an automatic to go with those 3.91s, your TM might be
Crank torque x TC ratio x2.45 first gear x3.91= say
400 x 2.0 x 2.45 x 3.91 =7663 ftlbs. But with an A833, it looks like
400 x 1.0( noTC) x2.66 x3.91=4160 ftlbs. or about 54% So don't hold yur breath.
What you need is a Commando box and 4.30s for
400 x 3.09 x 4.30 =5315, or about 69%
But hang on; that TC ratio of 2.0 is gonna diminish the instant that the car starts to move. By the top of First gear, it might be down to say 1.2 ish, so then 7663 becomes 4598.
But wait the torque is not a fixed number but changes continuously with rpm. So 30 ft out say, anything could be anything, and you don't have a convertor anyway, so all this is relatively useless information.
For low ET; You gotta gear your car to trap at a favorable rpm, so that Fourth gear can put the power down, on that long long haul to the traps. That means, with a 4-speed, whatever you get out of the hole is whatever it is. If you don't get enough air to satisfy your craving, yur gonna need a bigger engine. Or at least, more torque. Or maybe a Torque Convertor.or a power-adder.
But without the other factor Cope mentioned, namely "traction"; if the tires spin yur screwed.
I might have a better question and it goes like this;
What do you have to do to your car, to get yur 60ft down low enough, in order to get X-amount of air under the front tires.
I'll go first
2.2 to 2.4= zero air, lol; but still went 93 in the Eighth.
I would just like a couple nice pics of my 340 swinger with the front wheel snatched about a foot off the ground I don't need to be dragging the back bumper .
Step one, procure bucket.
Step two, fill said bucket with money.
Step three, dump bucket of money in hole where you existing engine was.
Step four, repeat steps two through three.
Well, I kinda hate to mention it, considering the recent threads on 8 3/4 strength..... but the first thing I would do in your shoes is put in a Dana or a nine, before you bust up your 8 3/4 and it's not saleable.I would just like a couple nice pics of my 340 swinger with the front wheel snatched about a foot off the ground I don't need to be dragging the back bumper .
Well, I kinda hate to mention it, considering the recent threads on 8 3/4 strength..... but the first thing I would do in your shoes is put in a Dana or a nine, before you bust up your 8 3/4 and it's not saleable.
Find this girl.lol.RJLet me clarify, what's the secret to pull the front wheels you know doing wheelie. How much horsepower would it take and what other supporting staff would help accomplish it in the 1970 swinger. It's one of my bucket list.
Yep, that guy had hook and gear working for him.Get your factory steel bumper and take it off and fill it completely with lead...
Put it back on and see what happens lol..
You can probably do it with a slant six LOL.. it's called ballast.... Or balance LOL...
I remember being at PIR in the right lane and racing this Camaro in the left lane. The last yellow light flashes and I cut loose the clutch... I look over to the left and he's doing a ginormous wheelie and I'm thinking COOL!!!.. and that's the last I seen of him as I was gone while he was doing his wheelie...
Doing a wheelie was never my concern, coming down was always a bigger one...
This guy's mustang was like a 13 or 14 second mustang...
Sometimes it's not always the horsepower...
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