Search found 5296 matches

by THE FRENCHTOWN FLYER
Fri Aug 17, 2018 9:12 am
Forum: 240-300 "Big Block" Six Performance
Topic: My 300 hits a wall when accelerating.
Replies: 8
Views: 429

Re: My 300 hits a wall when accelerating.

Melted / plugged catalytic converter?
by THE FRENCHTOWN FLYER
Wed Aug 15, 2018 9:10 pm
Forum: 240-300 "Big Block" Six Performance
Topic: 300 torque build 85 Bronco
Replies: 51
Views: 2560

Re: 300 torque build 85 Bronco

Well maybe Ted. It sure wouldn't be the first place I'd look to reduce weight. Under the dome; around the pin bosses, tapered pins...
by THE FRENCHTOWN FLYER
Wed Aug 15, 2018 9:06 pm
Forum: 240-300 "Big Block" Six Performance
Topic: 300 torque build 85 Bronco
Replies: 51
Views: 2560

Re: 300 torque build 85 Bronco

What are the downsides to having that gap between rings? A couple First, as I implied, the unburned gasses are driven by pressure into that space and as cylinder pressure is reduced (exhaust valve opening) those gasses escape out the exhaust pipe in the form of unburned and partially burned hydroca...
by THE FRENCHTOWN FLYER
Wed Aug 15, 2018 6:38 pm
Forum: 240-300 "Big Block" Six Performance
Topic: 300 torque build 85 Bronco
Replies: 51
Views: 2560

Re: 300 torque build 85 Bronco

What is the purpose of the large relief below the top ring land? That would give emissions engineers apoplexy.
by THE FRENCHTOWN FLYER
Wed Aug 15, 2018 12:58 pm
Forum: Vintage Ford Sixes
Topic: BONNEVILLE LSR ATTEMPT - Vintage Ford six
Replies: 1
Views: 52

BONNEVILLE LSR ATTEMPT - Vintage Ford six

I am following this team's LSR attempt with a Vintage Ford inline six. Very interesting, especially in view of the fact that it is going on right now, with real time updates. I am not connected with the effort. Enjoy https://www.jalopyjournal.com/forum/threads/the-xo-pp-virginia-hamb-special-is-read...
by THE FRENCHTOWN FLYER
Sun Aug 12, 2018 5:35 pm
Forum: 240-300 "Big Block" Six Performance
Topic: Tri Power Again
Replies: 93
Views: 3882

Re: Tri Power Again

Tell me if my thinking here is correct. The afr was too rich at idle and cruise. Then I realized with 3 carbs at 60 mph I don’t think I’m out of the idle circuit yet. I adjusted the idle screws and can now cruise at 12.5 and 14 afr. That is a quite common occurrence on small engines with tri-power....
by THE FRENCHTOWN FLYER
Sun Aug 12, 2018 5:32 pm
Forum: 240-300 "Big Block" Six Performance
Topic: Tri Power Again
Replies: 93
Views: 3882

Re: Tri Power Again

xctasy wrote:.. So its got about 20 cc's of fuel drop per stroke.

If its rated like Holley and Ford rate their accelerator pumps that would be 20 cc per ten strokes.
by THE FRENCHTOWN FLYER
Sat Aug 11, 2018 10:41 pm
Forum: 240-300 "Big Block" Six Performance
Topic: Street 300 L6 Motor
Replies: 205
Views: 18735

Re: Street 300 L6 Motor

You're using screw-in studs with adjustable rocker lock nuts. As long as the contact pattern on the tip of the valve is reasonable I do not think .020 or .030 difference from optimum length will make any noticeable / measurable difference.
by THE FRENCHTOWN FLYER
Sat Aug 11, 2018 10:29 pm
Forum: 240-300 "Big Block" Six Performance
Topic: VINTAGE CHAMP CAR REPLICA BUILD
Replies: 22
Views: 1375

Re: VINTAGE CHAMP CAR REPLICA BUILD

I misplaced the contact info for the gear sets. I'll hunt it up. The block pictured was modified by me to mimic the Ford design. To insure it stayed in place I only counterbored part way into the oil gallery so there was no chance the tube could migrate down into the oil passage and leak. Truth be t...
by THE FRENCHTOWN FLYER
Sat Aug 11, 2018 2:09 pm
Forum: 240-300 "Big Block" Six Performance
Topic: DIY - Best Harmonic Damper Puller. Ever.
Replies: 6
Views: 234

Re: DIY - Best Harmonic Damper Puller. Ever.

Good idea BigBlue94. That way others can chip in with their neat ideas too. Good sticky subject matter.
by THE FRENCHTOWN FLYER
Sat Aug 11, 2018 10:56 am
Forum: 240-300 "Big Block" Six Performance
Topic: Street 300 L6 Motor
Replies: 205
Views: 18735

Re: Street 300 L6 Motor

Sounds good to me.
by THE FRENCHTOWN FLYER
Sat Aug 11, 2018 10:47 am
Forum: 240-300 "Big Block" Six Performance
Topic: Pulling Cam & Crank Gears
Replies: 13
Views: 322

Re: Pulling Cam & Crank Gears

This makes the job of installing the cam gear so easy. https://farm1.staticflickr.com/896/41521888421_d128eb975b_z_d.jpg https://farm1.staticflickr.com/920/41521888611_80da18a47b_z_d.jpg https://farm1.staticflickr.com/797/41521888731_6c111b3438_z_d.jpg
by THE FRENCHTOWN FLYER
Sat Aug 11, 2018 10:16 am
Forum: 240-300 "Big Block" Six Performance
Topic: VINTAGE CHAMP CAR REPLICA BUILD
Replies: 22
Views: 1375

Re: VINTAGE CHAMP CAR REPLICA BUILD

On to the cam installation. I degreed the cam in. I will be starting with the stock cam. It has 110 LSA. I installed it at 112 degrees. I will be using a set of prototype steel adjustable cam drive gears. They have straight-cut teeth so they will be very strong. But they will be noisy. And that's wh...
by THE FRENCHTOWN FLYER
Sat Aug 11, 2018 9:18 am
Forum: 240-300 "Big Block" Six Performance
Topic: DIY - Best Harmonic Damper Puller. Ever.
Replies: 6
Views: 234

DIY - Best Harmonic Damper Puller. Ever.

Have you struggled to remove the harmonic balancer off the front of a 240 / 300 engine? I have. So I decided to make a puller that addressed all the shortcomings of the store bought ones I have tried. https://farm1.staticflickr.com/938/43072340545_290a17c01f_z_d.jpg Problem 1 How do you prevent the ...
by THE FRENCHTOWN FLYER
Fri Aug 10, 2018 5:54 pm
Forum: 240-300 "Big Block" Six Performance
Topic: Street 300 L6 Motor
Replies: 205
Views: 18735

Re: Street 300 L6 Motor

looks good
Will your springs clear the shoulder on the valve spring seat?
by THE FRENCHTOWN FLYER
Sat Aug 04, 2018 10:25 pm
Forum: 240-300 "Big Block" Six Performance
Topic: Cracked 300 6 block
Replies: 4
Views: 249

Re: Cracked 300 6 block

It is most likely cracks caused by freezing water in the coolant jacket. I have repaired a block with a similar crack. The engine I repaired had a very special block with a lot of machining done to it. If your block is just a garden variety block it may be easier to just find another good block and ...
by THE FRENCHTOWN FLYER
Fri Aug 03, 2018 10:43 pm
Forum: 240-300 "Big Block" Six Performance
Topic: Doing a motor swap. Identical motors. Have questions
Replies: 20
Views: 523

Re: Doing a motor swap. Identical motors. Have questions

IMO that makes no sense. And the analogy to the impact wrench is not relevant. The sum total of all the forces in the torque wrench example has to equal zero. Torque in = torque out. If not, where did the "lost torque" go? In the example of the air impact wrench that is a totally different...
by THE FRENCHTOWN FLYER
Fri Aug 03, 2018 1:35 pm
Forum: 240-300 "Big Block" Six Performance
Topic: Doing a motor swap. Identical motors. Have questions
Replies: 20
Views: 523

Re: Doing a motor swap. Identical motors. Have questions

94f150rules wrote:

If you use a chrome extension on youre torque wrench you do lose some torque.


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by THE FRENCHTOWN FLYER
Fri Aug 03, 2018 9:18 am
Forum: 240-300 "Big Block" Six Performance
Topic: Permanent 300 Six Cyl Head CFM solutions- A Work in Progress
Replies: 248
Views: 13881

Re: Permanent 300 Six Cyl Head CFM solutions- A Work in Progress

Thank you for your insight Sick6Turbo. I have some very distant plans for a 300 turbo build. Will you please PM me your contact information as I have nil "dirty fingernail" experience with performance turbo applications and I will need lots of guidance if you are interested.
by THE FRENCHTOWN FLYER
Thu Aug 02, 2018 8:07 pm
Forum: 240-300 "Big Block" Six Performance
Topic: Permanent 300 Six Cyl Head CFM solutions- A Work in Progress
Replies: 248
Views: 13881

Re: Permanent 300 Six Cyl Head CFM solutions- A Work in Progress

... Not a single person believed me that I had 2.75 gears in the sleeper when they went for a ride. It was a beast with those gears because the stall converter put me into a usable powerband right now, and the gears loaded the engine and put me in boost right now. Sick6, My 11 second RPU drag truck...
by THE FRENCHTOWN FLYER
Thu Aug 02, 2018 7:56 pm
Forum: 240-300 "Big Block" Six Performance
Topic: "Night shift" gets a new motor.
Replies: 8
Views: 424

Re: "Night shift" gets a new motor.

Good luck
I know you are under time constraints but - Don't Rush It.
by THE FRENCHTOWN FLYER
Tue Jul 31, 2018 5:27 pm
Forum: 240-300 "Big Block" Six Performance
Topic: Air Filters- Paper vs. Gauze
Replies: 10
Views: 316

Re: Air Filters- Paper vs. Gauze

good point JR.
by THE FRENCHTOWN FLYER
Tue Jul 31, 2018 5:22 pm
Forum: 240-300 "Big Block" Six Performance
Topic: Alternator requirements
Replies: 17
Views: 581

Re: Alternator requirements

Yes, and Yes. The variable displacement program was using Eaton cylinder disablers on a U-flow head. The turbo program was on a crossflow head (there may have also been a U-flow turbo program - the memory fades). This engine was the real deal - Carillo rods, forged pistons, etc. and reportedly ran l...
by THE FRENCHTOWN FLYER
Tue Jul 31, 2018 7:44 am
Forum: 240-300 "Big Block" Six Performance
Topic: Doing a motor swap. Identical motors. Have questions
Replies: 20
Views: 523

Re: 94f150 rules.

I was pretty excited when I looked at the outside of the lower after I removed the top and didn't see any cracks. Unfortunately as you can see from the picture, the top bolt at #6 cyl is broke. Imagine #1 son did that when he replaced the gaskets. https://ibb.co/cs81yo That is a common failure poin...
by THE FRENCHTOWN FLYER
Mon Jul 30, 2018 2:57 pm
Forum: 240-300 "Big Block" Six Performance
Topic: Performance intake manifold.
Replies: 4
Views: 231

Re: Performance intake manifold.

What Harte3 said.
Start with an exhaust system upgrade instead.
by THE FRENCHTOWN FLYER
Mon Jul 30, 2018 2:55 pm
Forum: 240-300 "Big Block" Six Performance
Topic: Doing a motor swap. Identical motors. Have questions
Replies: 20
Views: 523

Re: Doing a motor swap. Identical motors. Have questions

Keep the clutch master cylinder full. Its a bugger to bleed the system.
by THE FRENCHTOWN FLYER
Mon Jul 30, 2018 2:30 pm
Forum: 240-300 "Big Block" Six Performance
Topic: Alternator requirements
Replies: 17
Views: 581

Re: Alternator requirements

It won't hurt a thing to let it heat up after shutdown. All mine do. [EDIT: Although, concerns over fuel injectors being "cooked" after shutdown is what led Ford to develop their crossflow head design for this engine. Ultimately, in the short term, Ford added a little squirrel-cage blower ...
by THE FRENCHTOWN FLYER
Mon Jul 30, 2018 2:27 pm
Forum: 240-300 "Big Block" Six Performance
Topic: Heavy Duty Exhaust Manifold
Replies: 3
Views: 193

Re: Heavy Duty Exhaust Manifold

I'd go with the 3-bolt flange and, yes, run the flange across a belt sander. It will be more securely positioned than with the ball flange method.
by THE FRENCHTOWN FLYER
Mon Jul 23, 2018 11:11 pm
Forum: 240-300 "Big Block" Six Performance
Topic: Speed pro h519h hyper pistons, Compression ratio?
Replies: 24
Views: 526

Re: Speed pro h519h hyper pistons, Compression ratio?

I Am I giving up any longeveity in exchange for power with the metric ring pack? All the Ford modular engines - and probably those designed after I left the 'MoCo - use skinny, low tension rings for improved economy and performance, as well as raising the ring flutter rpm threshold. As long as regu...
by THE FRENCHTOWN FLYER
Mon Jul 23, 2018 9:58 pm
Forum: 240-300 "Big Block" Six Performance
Topic: Speed pro h519h hyper pistons, Compression ratio?
Replies: 24
Views: 526

Re: Speed pro h519h hyper pistons, Compression ratio?

The downside to using those pistons in a high performance application is that the ring pack is old school - 5/64, 5/64, 3/16 - which limits your choices as far as a good ring pack. While I do recommend these pistons for a stock or moderately built engine if you are going to really lean on the engine...
by THE FRENCHTOWN FLYER
Sun Jul 22, 2018 3:57 pm
Forum: 240-300 "Big Block" Six Performance
Topic: My 300 hits a wall when accelerating.
Replies: 8
Views: 429

Re: My 300 hits a wall when accelerating.

All 300s, carbed or EFI start to "nose over" at 4000RPM. The best improvement to start out with is a freer flowing exhaust system / muffler.
by THE FRENCHTOWN FLYER
Sat Jul 21, 2018 9:04 am
Forum: 240-300 "Big Block" Six Performance
Topic: Really low fuel pressure
Replies: 5
Views: 287

Re: Really low fuel pressure

It turned out I had a couple pin holes in the line coming from the sending unit to the fuel pump. The funny part is I had no visible leaks, an older mechanic told me to start checking the fuel lines. Yup. My dad had a '61 Ford inline six that started consuming oil. We couldn't find the leak. While ...
by THE FRENCHTOWN FLYER
Thu Jul 19, 2018 8:52 pm
Forum: 240-300 "Big Block" Six Performance
Topic: Really low fuel pressure
Replies: 5
Views: 287

Re: Really low fuel pressure

Gasoline weighs about 6.3 lbs per gallon. A well tuned engine has a brake specific fuel consumption at WOT of about .500 lb/hp-hr. A pump delivering 25 gph would be delivering 157.5 lb/hr (25 x 6.3). At .50 BSFC that pump will support 315 hp (157.5/ .50). The 35 gph should support 440 hp. The 25 gph...
by THE FRENCHTOWN FLYER
Thu Jul 19, 2018 8:37 pm
Forum: 240-300 "Big Block" Six Performance
Topic: 1963 Fairlane Drag Race Project!
Replies: 36
Views: 5837

Re: 1963 Fairlane Drag Race Project!

At the very least I'd see if the current owner wants the pink slips. You may be able to recoup something and maybe network into a deal down the road.
by THE FRENCHTOWN FLYER
Wed Jul 18, 2018 8:26 pm
Forum: 240-300 "Big Block" Six Performance
Topic: VINTAGE CHAMP CAR REPLICA BUILD
Replies: 22
Views: 1375

Re: VINTAGE CHAMP CAR REPLICA BUILD

I arrived home inspired to make another little accessory - an external fuel pressure pump. I made a wood pattern and used a chunk of a failed aluminum race car driveshaft (that is a story unto itself) for the body. https://farm1.staticflickr.com/848/42593381495_bc57b50928_z_d.jpg https://farm1.stati...
by THE FRENCHTOWN FLYER
Tue Jul 17, 2018 6:25 pm
Forum: 240-300 "Big Block" Six Performance
Topic: VINTAGE CHAMP CAR REPLICA BUILD
Replies: 22
Views: 1375

Re: VINTAGE CHAMP CAR REPLICA BUILD

I just got back from a trip out to the American Museum of Speed in Lincoln NE. I will post some pertinent pictures of details I saw. I learned a lot. I also met with another gentleman who is building a car similar to mine but with a '41 Lincoln V12 complete with exceedingly rare speed equipment.
by THE FRENCHTOWN FLYER
Sat Jul 14, 2018 9:25 am
Forum: 240-300 "Big Block" Six Performance
Topic: two barrel carb on one barrel intake
Replies: 29
Views: 2249

Re: two barrel carb on one barrel intake

Yours are darn close to my champ car. For others contemplating similar mounts the biscuit assemblies are available from Speedway and others and are like OEM flathead V8.

by THE FRENCHTOWN FLYER
Fri Jul 13, 2018 7:08 pm
Forum: 240-300 "Big Block" Six Performance
Topic: THE 240 / 300 WHERE ELSE WERE THEY USED? OTHER APPLICATIONS
Replies: 85
Views: 9214

Re: THE 240 / 300 WHERE ELSE WERE THEY USED? OTHER APPLICATIONS

I started off this thread with a pic of a similar concrete pumper - the first I'd seen.
by THE FRENCHTOWN FLYER
Fri Jul 06, 2018 9:24 am
Forum: 240-300 "Big Block" Six Performance
Topic: Checklist for 300 engine that was smoking
Replies: 6
Views: 290

Re: Checklist for 300 engine that was smoking

If it has sat around for 6 months or longer the battery is toast. Better bring another.
by THE FRENCHTOWN FLYER
Wed Jul 04, 2018 4:09 pm
Forum: 240-300 "Big Block" Six Performance
Topic: Setting up my intake and carb
Replies: 9
Views: 400

Re: Setting up my intake and carb

I would make a sheet metal "stove" and mount it spanning two primary pipes. The Ford OEM system is actually pretty sophisticated having a thermostatically controlled temperature regulating flapper door and some even have a coolant temp controlled turn off feature.
by THE FRENCHTOWN FLYER
Wed Jul 04, 2018 4:04 pm
Forum: 240-300 "Big Block" Six Performance
Topic: Question about 300 heads
Replies: 12
Views: 553

Re: Question about 300 heads

In order to keep the fast burn qualities of the EFI cylinder head you want to keep the mask clearance - the distance between the edge of the intake valve and the combustion chamber shrouding - somewhere around 1.75 - 3.00 mm. Once you increase the clearance past 3 mm the fast burn qualities of the h...
by THE FRENCHTOWN FLYER
Mon Jul 02, 2018 6:37 pm
Forum: 240-300 "Big Block" Six Performance
Topic: Lifter kit recomendation
Replies: 9
Views: 310

Re: Lifter kit recomendation

You may be using the wrong terms to describe your problem. If the engine actually was in valve float, i.e., the valves are not following what the cam lobe and valve train is dictating in terms of duration and lift, it would behave the same way at any given RPM whether you were on or off the throttle...
by THE FRENCHTOWN FLYER
Mon Jul 02, 2018 6:55 am
Forum: 240-300 "Big Block" Six Performance
Topic: Offy DP Intake Adapter to Autolite 2100 Two Barrel ?
Replies: 13
Views: 419

Re: Offy DP Intake Adapter to Autolite 2100 Two Barrel ?

I'm surprised nobody has suggested just hogging out the inside of the DP, making it one large plenum volume.
by THE FRENCHTOWN FLYER
Mon Jul 02, 2018 6:49 am
Forum: 240-300 "Big Block" Six Performance
Topic: Setting up my intake and carb
Replies: 9
Views: 400

Re: Setting up my intake and carb

My experience with aluminum intakes is that you do not need water under the intake. To totally eliminate carb icing you will need to run warm AIR ducted from your exhaust manifold (header?) to the carb inlet, similar to a stock air cleaner.
by THE FRENCHTOWN FLYER
Mon Jul 02, 2018 6:39 am
Forum: 240-300 "Big Block" Six Performance
Topic: Lifter kit recomendation
Replies: 9
Views: 310

Re: Lifter kit recomendation

Usually a stock engine will run out of power well before "valve float" sets in. Do you know the RPM at which valve float occurrs? Maybe you have a broken valve spring - did you check for that? Also, lay a straight edge across the tops of the tips of the valves to see if one or more valves ...
by THE FRENCHTOWN FLYER
Mon Jul 02, 2018 6:23 am
Forum: 240-300 "Big Block" Six Performance
Topic: 1969 240 Modist HP & Torque Gains
Replies: 9
Views: 449

Re: 1969 240 Modist HP & Torque Gains

For me, I do as old28racer says and open up the area under the carb to make the transition from 1V to 2V as smooth and gentle as possible. I use an "inverted christmas tree" cutter bit to radius the underside of the throat of the intake so the air can easily turn the corner going down the ...
by THE FRENCHTOWN FLYER
Fri Jun 29, 2018 3:41 pm
Forum: 240-300 "Big Block" Six Performance
Topic: 1969 240 Modist HP & Torque Gains
Replies: 9
Views: 449

Re: 1969 240 Modist HP & Torque Gains

The 2100s have a larger mounting surface and bolt pattern than the 2GC. Both are good carbs readily available. Linkage on the 2GC may be easier as some have a push-me-pull-U linkage so you can pull from the top or bottom whichever works easier.
by THE FRENCHTOWN FLYER
Fri Jun 29, 2018 8:20 am
Forum: 240-300 "Big Block" Six Performance
Topic: 1969 240 Modist HP & Torque Gains
Replies: 9
Views: 449

Re: 1969 240 Modist HP & Torque Gains

Early points distributor caps used 7 mm wires. You will need 7-to-8 mm adapters to use the 8 mm wires with that cap. Or adapt a later model rotor and cap to your points distributor.

A Rochester 2GC carb is probably a better choice if you plan to just use the existing stock intake hogged out.
by THE FRENCHTOWN FLYER
Fri Jun 29, 2018 8:13 am
Forum: 240-300 "Big Block" Six Performance
Topic: Modest gains?
Replies: 7
Views: 484

Re: Modest gains?

Thank you! Everything OK from the CAT forward? Is there anything to be gained there? I know there are aftermarket catalytic converters out there that bill themselves as "high flow". I do not advocate the elimination or replacement of cats and upstream plumbing because they have the dual f...
by THE FRENCHTOWN FLYER
Thu Jun 28, 2018 9:31 pm
Forum: 240-300 "Big Block" Six Performance
Topic: Modest gains?
Replies: 7
Views: 484

Re: Modest gains?

A free flowing exhaust system from the cat back offers the biggest bang for the buck.

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