Nothing significant to report.  Just documenting changes and discoveries.

I noticed that the front driver's side brake was dragging.  Turns out the caliper pins, bushings and sleeves need to be lubricated now and then.  Lubed them and no more dragging.  Went ahead and did the passenger's side, too.

I don't know if this was taking place during my last trip to the track but if it was, it was slowing me down.

Edit 04/29/16
I noticed that it still wasn't rolling like I thought it should even after lubing the caliper pins.  I remembered something else I had not done in a while, adjust the parking brake cable.  Now it's rolling a lot better.  Gotta remember to think of the whole package
Limited slip added about a-month-and-a-half ago

Edit 06/28/2017
Last summer - winter, I made and installed a windage tray, crank scraper and oil pickup primarily to address an oil pressure drop at high rpm.  The engine does seem more responsive.
I'm thinking that since I've made so many changes since my last good run, I'm going to do a couple more things that should help.  At this point I won't know what hurt or helped, anyway.

Edit 09/13/2017
Made a sort of antenna delete since the radio does not currently work and I could not hear it if it did.
Filled in the plenum slot of the Blue Thunder intake.  Smoothed transition from carb to ports / plenum.  Improved port match between intake and heads.

Edit 10/18/2017
Reinstalled K&N stub stack.  This was used during my best run so far, but it was not installed at the very last run because it would not fit with the new air cleaner base.  I figured out how to make it work with the new base so I figured I would include it in the updates.

Edit 4/27/2018
Installed 17" aluminum rims and tires.  New tires are 25.7" diameter.  Old tires were 28" diameter.  About equivalent to going to a 4.03 rear gear.  New tires should be better in all aspects, including traction.

Edit 4/25/2019
Installed Holley 670 because the 570 developed idle problems.  The engine does need something bigger, anyway.


Lawrenceville, GA

I thought you had those when you were at Columbus.  They eliminated the wheel hop, and that is a good thing.



Lawrenceville, GA

Charley, I made set of Cal-Trac copies and they stopped all the axle hop...I haven't tried them at the strip yet
            I've got a small engine/electrical problem we're trying to iron out........check out the latest issue of :Hot Rod"
            nice hi-dollar "Slick" in there....

Bill

Pelham,Al

It is slick at times ,but workers just tell you to adjust your vehicle to track!

I have the repop blower cam.
I'll test spacers some day, but the next trip to the track has to have everything the same, with the exception of positraction.  I'd also rather address a traction issue with something that increases traction, rather than doing something that decreases torque.  My plan, ultimately, is to inject and turbocharge, so I'm going to need the traction.  May as well take care of it now.  I've contacted Moser, and their 31 spline axles will do the job for my plans.
Not concerned about slipping and sliding as it will do that just fine right now.  Hopefully, by it's very nature, positraction will reduce the number of instances of that slipping and sliding.
The gears will definitely need to be shorter for racing, and since I have a 9", I can easily swap between street and strip gears.  I suspect that I will also need shorter gears for the street, to fit the power band of the engine and tall overdrive better.



Lawrenceville, GA

I've heard great things about the cal-tracs. Alternatively Nascar uses truck arms, these seem interesting.
I would consider an open spacer for the drag strip and maybe for the street if your wheel spinning there too.
And consider if your having traction issues now, when you do change the diff and both wheels become engaged be prepared to slip and slide when it spins, especially in the wet.
Taller diff gears could help too if you plan to stick with low rpm torque.
I'm pretty keen to fit my posi too.
What cam are you running again?

I had considered that.  It's so close to the end of the season now, and so busy that there really isn't much time for tuning, so I picked what I thought would do what I wanted and it didn't.  My hope, given that I know I do not have the traction for any kind of launch, was that the 4-hole spacer would help me get off the line quicker, and perhaps all of the other things would at least keep the top end the same as before.
I have lots of spacers now, so I hope to get there during a less crowded day to try different ones.

Looking back at past time slips, this run is one of the slowest 60' I've had, 2.703 (best 2.428) but near the top in mph, 89.94mph, 1.14mph slower than my best.



Lawrenceville, GA

I'd be surprised if a 2" 4hole spacer helped at the dragstrip. Probably feels good on the street with added power at low rpm but high rpm power will likely suffer.

http://ford-y-block.com 

20 miles east of San Diego, 20 miles north of Mexico

Spinning is nothing new, but it seemed to be happening more easily, even on the street.

My friends had not arrived for my first run, so I did that with the spare tire, some tools, and a few spare parts, maybe 150-200lbs extra, and my 60' was .200s better than the unloaded 2nd run.  MPH and et was about the same.  If it were a better, more experienced driver, that would definitely mean something, but I'm not that good, yet.  There is still the chance that the result suggests traction is at least a part of the issue.

Of all the things I've changed, the only things that are really ambiguous are the secondary jet change, carb spacer change and required air filter change to fit the spacer.  Those are easy enough to put back to the old configuration for testing.  Everything else, with the exception of the water pump pulley should increase output.

Thanks for the link, CK.  This truck will probably not have a 4-link ever, so I won't be able to put much of that to use.  I do have what I think are the best traction bars available, Cal-tracs, and when setup with the right combination of parts, these handily get vehicles into the 11's, faster than I ever plan to go in the truck.  They do have a few adjustments to play with, which I will play with at some point, but not like a 4-link.  First I will get some form of positraction so that both wheels can contribute to the forward motion.  Hopefully that will be enough for now that traction can be eliminated as a reason it is slowing down.  That will be a good, relatively easy winter project, so I can try to get back to the track soon after it opens next year.



Lawrenceville, GA

So spinning the two tries was a little something new. Perhaps you are making more hp and its effecting your traction. Time to get serious about that. Chuck

Y's guys rule!
Looking for McCullouch VS57 brackets and parts. Also looking for 28 Chrysler series 72 parts. And early Hemi parts.

MoonShadow, 292 w/McCulloch, 28 Chrysler Roadster, 354 Hemi)
Manchester, New Hampshire