Bad-Boy 92 inch 1952 Pan

[Dragstews]

After the breakin don't be surprised to see 2% or less leakage ...

Could see that right off the bat with a bit more prep work on the wall finish ...

Plateau honing is a process that improves cylinder wall surface finish by gently removing tiny peaks of torn or folded material and increasing bearing area. A plateau finish is desirable because it allows lubricant to collect in the remaining valleys, improving lubrication control and retention.

And using this for wall lube ...



Say ...
Wanna yak bout your Super-B some ??





Might be fun .. ??

[farmall]

Old faithful still has tight throttle bushings after over 100K miles on my stock displacement FXR and ran fine when pulled.

I ran an adjustable enricher, Superbowl accel pump and sliced off most of the idle screw "wings" (less weight = less to vibrate and wear threads, did that in 1988 and it worked as they're still tight). I through drilled the backing plate (works on Bs but not E's as theirs fail to be flat) for full length screws and lock nuts because piss on slinging cover screws (even with Loctite dat cover is heavy). Common screws replaced with stainless socket heads because to hell with that cheap annoying trash (socket heads stay on the hex key during bowl removals and allow greater force to be applied).

I've several carbs and really should finish the "extended Amal tickler" mod I began (then got distracted by life and not needing it at the time) and buy some Teflon balls or rod as tickler tips to protect the S&S floats. (I really like Amal ticklers and always wanted one on an S&S). (EDIT, Teflon ordered. Will get on it and post pics.)

Any recommended driveability mods? I have one or two bodies with Thunderjets but found no benefit on the street.

Is the bombsight mod worth doing? What is the measurable effect of the Panifold in your experience?

Suggested starting jet numbers if not the usual .295 low/30something main?

[Dragstews]

By all mean the DaVinci bombsight work wonders ...



"DaVinci Performance FirePower Booster Kit

DaVinci Performance, the leader in carburetion, has combined all the technology and skills that have been used over the years in the racing industry to produce the DaVinci FirePower Booster kit for use on Harley Davidsons. The booster kit design is a small venturi inside a larger one; akin to a smaller carb inside a larger one. This assembly, when installed in a carb’s venturi, increases the air velocity and signal at the fuel source. The special booster insert, with its multi-port outlet, then helps atomize the fuel into fine particles, promoting a more powerful fuel/air mixture entering the engine cylinder. The solid brass emulsion tube assembly meters the amount of fuel entering the carb by various sized main jets (Stock S&S jets). Air is also introduced into the fuel as it travels up the tube to the booster. This helps the fuel travel faster and also helps to break down the fuel too. If you are looking to add reliability and power, while decreasing hesitations or dead spots, then this modification is for you. It will provide increased power and drivability, is easy to install, and is affordably priced. Kits include all necessary parts and installation instructions. You can expect gains of up to 15 additional horsepower. With the right booster kit, your carb will become more efficient and will make for a smoother ride."

... No longer made by Dan VaVinci since Sifton started making them ... Same Gig .. Difference Continent ..

Another mod that is worth doing is the main jet air bleed ...



Adds the ability for tuning ...

Air Bleed on a "Super-B" .....

** Mid-Range Tuning **

The Air Bleed is an air passage connected to the Main Jet emulsion tube that allow air to mix with fuel before it is pulled into the carb throat ..
You may have found now that by increasing the low speed jet size, the motor responds better off idle but now has a stutter or hesitation (flat spot) as the rpm rises to a level that recognizes the carb's main jet ..

All Super-B's are manufactured with a fixed size air bleed passage. By modifying the carb to accept jets will allow you to adjust the main jet air bleed size for more control over the main jet circuit signal timing and fuel volume ..

Takes drilling, tapping and spot facing to accomplish the install of the air bleed jet ..
The original air bleed size is .042"; suggested range is .054-.072" .. Use S&S main jets for this application ...

Bore with a 1/4" drill until you reach the cross drill in carb body. (DO NOT GO PAST CROSS DRILL !!)
Spot face the area with a 1/2" end mill for mating surface of the jet.
Use 5/16-24 starter tap in hole and then remove to use a 5/16" bottom tap to finish the job ...

[farmall]

Have mill so can do air bleed. Have grinder so turning spare tap to bottoming tap no problem.

So does the bombsight decisively cure the "Spit & Sputter" S&S are famous for? Does it have any effect on required jetting or just work nicer with proper jets?

They're originally race carbs of course so that didn't matter but smooth is always nice and minor top end flow loss won't matter since this one likely won't spend much time at full throttle. Me want midrange roll-ons.

[Dragstews]

It does and with you having the Superbowl acc. pump you'll be .....

[Dragstews]

Had a two hole crank pin in the crank ...
It mic-ed out great, going to reuse it ..



Your sprocket shaft on the left and soon to be a shaft close to the one on the right will be added to the soup .. (Once the S&S order gets here and T&O does their magic)

About the S&S Gen idle gear ...
You sent the Oem gear, appears to be in grand shape .. The bushing is like new with the fit on shaft ..
I really don't see the need for the S&S gear, the money it would cost could be spent elsewhere where it would be a plus ..
Although the S&S does have a better design by running two bushings (Added support) oppose to the stock gear having only one ...
But how often does the Oem gear gives up the ghost ... 200,000/300,000 miles ??



As always, your call .... Boss

[Dragstews]

Rods and bearings will also be reused ...

... /// https://youtu.be/BkwjjMiHoCI \\\ ...

[Dragstews]

Here's an oldie but is a goodie ....



*Cobra (112) Cam* .. Power in the 2500-5000 RPM range. Works best in motors up to 86".

It's used but far from used up ...

Just might be a great choice for the 48 ....

[farmall]

Might as well keep the idler gear but as for cams and tappet rollers/tappets I prefer new since they're so highly loaded.

That does beg the question who makes the best quality cams these days. That grind or similar and RPM range is on the money.

[Dragstews]

That does beg the question who makes the best quality cams these days. That grind or similar and RPM range is on the money.

I been using Leineweber's for more years than I can remember ...
Jimmy/Justin offers many grinds, have a look ..

... /// https://www.leinewebercams.com/PG4_S...4wfall2016.pdf \\\ ...

Interesting "Family History" Jimmy told me ...
His family roots are from Chicago, his Grandfather owned a Cigar shop across the street from the Biograph Theater ..



John Dillinger was existing the theater as Melvin Purvis (FBI Agent) stood by the front door and signaled Dillinger's exit to his men by lighting a cigar. A cigar that was bought from Jimmy's Grandfather on July 22, 1934 ....

Another side of the Dillinger story is the "Woman in Red" Anna Cumpănaș ..



BTW ... That's ^^ not Anna, that be Fiona Johnson ...
__________________________________________

Bout the cam ...

Make a pick and I'll run the Accelerator program for that grind ...



Had a chat with Leineweber, both of us think the L-31 would be a great choice for a kick start scooter sporting those cubes ..
Lets see what the program thinks bout that grind, shall we ??



(Going to need race valve springs for that grind)



These springs ain't going to cut the cheese .. !!

[Dragstews]

Morris Mag parts showed up ...

Jumped too getting it nailed on the 52 ...



Thought that the 1/4" X 24 bolts that Morris sent might be a tad long ... But they went in without bottoming out ...



Lubed the Bad-Boy up, and installed new points & condenser set to .015"



And timed it ...





That chore is now done .... Waiting on the Alum Goodson Mag Cap to show up ...

[Dragstews]

Working the heads is next ...

Since these castings have the hump for the rivet that the 48 to 54 heads used on the intake manifold rings, won't be having a need for that hump ... A bit of grind time to net a better look will go down in that area ...



Most likely a few other spots will need to be worked ...
Getting around to doing that work today .. I hope .. ??



... Hump be gone ...

I really like these re-pops ..
Look at how much more fin area they have over the Oem heads ..





With all that added meat, these puppies must weigh a pound or two more than the stock heads ...

Well, I had to know ...





Front head got blended ...



... /// https://youtu.be/cw2Dn9a8sQ4 \\\ ...





Going to look fantastic with the shine up top .. !!
(Don't look Farmall)
Ohh Hell, go ahead cause those are your heads on that motor ..

... /// https://youtu.be/-UHHc7POovg \\\ ...

[Dragstews]

Bet that Gen would be toast if I tried to Powder coat it ...
400 degrees is "Hot as a Fresh F*cked Fox ina Forrest Fire" .. !!

Sumthin sure needs to be done with it ... ??



Need a bigger Horn !


... /// https://youtu.be/ecvIZ3agcLQ \\\ ...

[flatman]

Motor Porn! Any secrets on the blended finish, sandblast, 60 grit and hammer? That motor is really nice!

[Dragstews]

Any secrets on the blended finish, sandblast, 60 grit and hammer?
That motor is really nice!

Thanks

What I did was only the roughing in, from here polishing will go down, the heads will match the shine that's on the lower end ...
At first we didn't intend to build a fully polished out motor, but, as the build was going together it started to Snowball ...

36 grit works pretty good too ...