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Cars that have thier instant center close to the neutral line can suffer severe body roll at launch. I know. It happened to me years ago. And that includes ladderbars, which i run. What happens is at the hit engine/driveline torque trys to roll the body of the car clockwise. The closer to the...

Rockinrobin, looking forward to some positive results, long term under all conditions! Keep us posted!

In your quest for consistant 60 ft, i had excellent results by launching at a low throttle setting using an ACD co2 throttle controller. When i graphed out my throttle position at the hit, i leave at 4000 versus a stall of 6200. That throttle controller takes .05 to open fully, then add a...

My Dart loves the slow power application of a CO2 throttle controller. With a 4,000 rpm setting (about 1/8 throttle opening) it takes .05 for the throttle to hit 100% opening on launch, 2.45 low, 33 10.5 or 33 15 15 tires very little difference,549 cubes, 2905 lbs race weight. 60 fts of 1.224...

Thanks Killer . I had no idea how they worked, thought you still needed a vacuum source.

Oh, and puppy likes to help,,,,,,

My wheel wells are just too tight, coupled with a 6 inch backspace 14 wide wheel. So,,,,,

I have thought of that, but am running a four magnet collar on my front yoke for the data logger, so not enough travel available to do that. I EVENTUALLY will get my behind back into the shop and get those pics!

Will post a couple today

I found the secret! Find a piece of plastic pipe ( 1 1/2 inch plumbing pipe works)you can ducktape to a shopvac hose, drill aproximately a 5/16 hole close to the end of the plastic pipe,, seal the end of that pipe with duck tape. Remove the valvestem core form the slick, slide the plastic pipe...

How far down rhe horsepower road do you all think you can push a normally aspirated, stock stroke 318 with good, light bottom end parts? Would it liv making enough power at only, say 322 cubes to run tens?

Not sure on the actual koss of ET. But knowing it was slipping some for part of all runs, maybe not much. Et may stay about the same,or inprove uf i launch harder. Mph may suffer a bit.

I got told by my tire guy(Hoosier dealer) that my tires are probably aged out. I bought them five years ago this sept . So on go new slicks, and wider. From 10.5 to 15 inch, same 33 tall.

IMHO you have the deadliest combo. A 10.00 or slightly less , but deadly consistant car, and great driver! Big congrats on your wins!

Ouch!

Thanks everybody. I can add a lot of what got me here came from these forums; the guys that helped educate me!

John, i confused the issue by saying the rpm of 7,000 set to trigger the airshifter. It winds up showing 7250 actual, and should i chose to loosen the converter, I think a spread of 400 to 600 rpm from stall to shift is close to optimum? A good converter builder would do me right. I understand...

ValiantS, i agree. At 7,000 shift point it would be above 8.50 by a fair amount with current settings. Things that would optimize this car: much more agressive launch. New tires that are 15 x 15 x33 are on order. The converter could be quite a bit looser, as it only stalls 6200 and max hp is...

For those who might consider such a max effort, the math says you could run a 7.1 long rod, 3.75 stroke, and a piston of 1.18 pin height. That would yeild a rod ratio of 2.11, which some experts consider an advantage. That would get the bob weight way down, and piston speed would be under 5000...

I post mainly on moparts. Not a lot of posts hear. For some history, google Northland Flyer, MoparMuscle June 2002. Two page spread on my Dart. https://www.motortrend.com/features/1965-dodge-dart/

I should have posted the last run numbers. 1/4 et was 8.564, but only 157 mph and a handfull, oulling towards the wall. It should run high 8.40s if i let it shift at about 7800. Also i am leaving at only 3900 rpm, with a 6200 stall converter. I run an air cylinder throttle controller, and it...

I copied my post from moparts: Went to Rockfalls WIS today to see what i could get out of the Dart. I made three runs, and unfortunately all three runs had an issue. The air was fair, at a DA of 2400 by my weather station. First pass, a water temp fitting decided to leak, causing spin in the 60...

Your weak link is the block strength. Study up on that! Every bit of weight you can remove from the rotating assembly will help.if it were my build, i would start by grinding the crank rod journals to 2.1 smallblock chev. Order BME aluminum custom rods in the longest length that would work with...

74 here, and i am at a point where three outings a year is about it. I started legally racing in 1971 in my 69 Charger RT, running 14s. Now my best will be 8.50, having gone 8.60 at 156.5 mph with issues. I just love going fast, and that has been ny main quest.I have decided to not upgrade the...

The simple, but very incomplete answer is a four link allows a change in the leverage, and angle it is applied. A ladder bar has a set leverage length of about 30 inch to 36 inch, from the axle center to the front bolt. The ladderbar angle change is fairly limited, usually higher or lower no...

When you get your pump body, make sure the end clearance is close to minumum spec. My NEW milodon high volume pump was at MAX .004 end clearance when i recieved it and would not pull a prime reliably. I reduced the end clearance to .0017 and all is well, dual line system on a BMP aluminum block.

To add to that, i moved the upper shock mounts out by fabbing up some weld on upper mounts, then to recess the fenderwell area back about three inches to gain turning radius, i cut out part of the wheelwell area in back and welded in a new piece of sheet metal, which created a fancy foot rest...

The early A cars just suffer with way too little room for that large 440. I have owned and raced a 65 dart/440 combo since 1981. A lot of work, but the best solution, is a different front suspension system of some sort. A Mustang 2 aftermarket kit will allow much more room. Subframe ties and a...

Sorry about coming late to the party, but wanted to contribute my 904 story in case you have not committed to a trans yet. I got a NEW 904 (actually a newer 1976 version) core from a friend and had it built for my 408 stroker combo. It had the 2.76 low gear set, and a modified valve body, still...

A thought, is there a beehive type spring that will compliment that cam? I am thinking it may work well, but may like a looser converter? on comparison, i went from a 590 flat tappet to a 286 @ 50, .750lift roller on a 535 with ported 906 heads many years ago. I went from 10.50s to 10.20s and...