Projects My 31 cdan before, disaster, and rebuild.....lol... S$$$ happens...

before the fire... white rat...

 

now it's grey with a little patina touch...fried rat

 

so back in the day, I used to run a woody gilmore front engine dragster...it had a 383 stroker ,3 deuces (stromberg 97's) and a glide trans.... nothing but fun to run... but heres the question... what jets to start with?????? the stromberg that was on has jets with no numbers,... but I still have my jet index tool so I think they are 40's...... could be another equipment deal???? no number jets so people didn't mess with them??? would also explain why it was laying down mid range..... no spark, and no fuel...

 

Luck was with you for sure I see you still have the tank on your lap. Not much scares me but fire does ever since I was a kid my mom and I were filling gas in her wagon when we heard some backfire from the garage the guy filling the car said they were trying to get the old tow truck started for the old man that owns the station then another pop and we saw a guy running out on fire head to toe they trough him to the ground and put out the fire never want to see that again. Glad your ok cars can be replaced.

 

just went out and indexed the jet, tool is in MM... so.... 1.05 mm sooo.04133 inches ??? correct???? that seem awfull small

 

That's a great looking Mordor!
1-4 & 2-3 evens out the exhaust pulses. Each pair is 360 deg apart.

Wow that could have been way worse!

 

they make a conversion to put a 32 style fuel tank on the rear of a 31,.... that tank in my lap scares me,...I drove F.E.D's (front engine) dragsters most of my younger life... started A/ fuel, , injected alchol, my last pass with the alchol one I blew the crank out the bottom end and window the block about 3/4 track
went threw the lights a ball of flames covered with hot oil... hit the fuel shut off and kill switch and the flame went out... safari crew was there the secound I got the car stopped.... wife and kids watched it happen,... when I got back to the pits my wife says....you know that schiada you wanna buy??? go get it cause your not doing this anymore...

 

from what it looks like to me is, ford just mated two of there 2 clys motors together... heres my thought... when #1 fires, # 2 fires 90 degrees later... seems like it would up the torque?????

also I'm gonna run 2 lake pipes....


but I'm thinking more on these lines...

 

looks to me like they took 2 2 bangers, and turned the other around to make it a 4 banger... with # 4 firing 180 from # 1 bet they did that to tone down vibration???

 

Dang! You are a lucky/blessed dude! Thank goodness!!!

 

Couple of fallacies in your reasoning. Since a 4 cyl. has uses a flat plane crank, with its throws paired 180* from each other, it's going to be a neat trick to get #2 to fire 90* after #1. Since #1 and #4 are paired and come to the top together, they can't fire at at 180* interval. They have to fire either together or at a 360* interval (most common). 720* in a four stroke cycle, divided by 4 equals 180* apart. Possible firing orders 1-3-4-2 (Most common and probably with less vibration and stress on the crank.) or 1-2-4-3. As Outback said a 1-4/2-3 pairing evens out the exhaust pulses in the pipes.

 

thanks for the reply,... the model A/B is a weird bird,..cam profile is gonna tell the firing order..

but, being a have to know, and love to learn guy,.. but here's my finding on the motor,.. it's fact that the firing order is 1243... correct??? here's where I based my header design...off cam rotation... and I verified from the crank.... put #1 tdc , turn the crank 90* and #2 fires.. turn 90* more and #4 fires, 90* more and #3 fires...correct???? ....no doubt I'm missing something, and gotta go out a re check my line of thought.. but at the same time, every pic of a race type banger with split exhaust manifold is 1/2 & 3/4 ... I own a fab/ muffler shop in vegas ,so I can have it my way... and even do it over... but like I said,... I wanna at least know what I'm doing... so the crank turns 2 to 1 on the cam??? correct???? and dist. turns same rotation as the cam??? so 90* of cam rotation is 180 degrees of crank rotation...???? correct??? firing order is based off cam profile???? correct... and not off crank, and though the crank turns 720* the cam only 360*.. the motor fires every 90* of dist. rotation.... the way I was taught about exhaust is this... when the first fires, the suction in the pipe pulls the air out of the next... and with a long enough collector/ tail pipe that not too big there is allways the drafting effect..

too big of pipe and exhaust is allways pushing .....mateing 1&4 and 2&3 going to a one pipe collector would probley work fine.... but splitting the manifold is gonna be total different?????

and I sure appreciate you jumping in on this "before" I do it... you sure got me thinking...

 

I own a complete automotive shop, and here's a way more common problem than one would think,.. guy comes in with his 69 camero on the trailer... states this.... it was running, and i put a new mallory dist in and now it won't start....99 out of 100 it's the dist. is 180 out... putting the crank on the tdc mark is a 50/50 chance of working... it has to be on the compression stroke to fire....

the b motor is easy as you can pull the plug and see the piston... that how i found out the B motors have 10* advance on the timming pin...



so me talking 90* was cam, not crank

 

I'

i'd like to see the same car going up the hill.....

 

also., I bought and installed one of these nu rex timing degree tabs....



and a battery timing light,.. so I'll be able to see full timing from the steering lever..

my guess is about 30* total??

 

this one is split 1-3/2/4...???

 

can't get the link to work,... but way worth the watch...motor sounds sweet to me!!!


Video: Hot Rod Racing at El Mirage in 1946 | Mac's Motor City Garage (macsmotorcitygarage.com)

 

I still say the 4 banger was 2 model t motor hooked together... and gmc copied the idea and mated 2 351's together to make their 702 ci motor...

 

Model Ts are 4 cylinders. If you hooked two together you'd get a straight 8. I don't think Ford ever made a gas 2 cylinder.

 

I think you are counting degrees of distributer rotation as degrees of crank rotation. Firing each cylinder at 90* intervals would complete the 4 stroke cycle in one crank rotation instead two. Ninety degrees of crank rotation from TDC puts all the pistons half way down the cylinder.
Again like Outback said, a 1-4/2-3 split gives you 360* intervals between exhaust pulses. A 1-2/3-4 split gives you a 180*/540* intervals.

 

1903 model A's had 2 banger motors...101 ci.... but I think the motors where built by fiat????

 

Microsoft Word - 1903A-Tonneau.docx (earlyfordregistry.com)


In Feb 1903, the Dodge Bros. agreed to manufacture 650 engines and drive trains for Henry Ford by June 1903. The Dodge units were to be delivered to the Ford Motor Co. factory on Mack Avenue in Detroit, MI where the first Ford cars would be assembled. In July 1903, the first Model A was sold. The car had a short 72” wheelbase and was powered by an 8 HP, 2 cylinder horizontal engine designed by Henry Ford. Noticeable characteristics of the first Ford’s were the small 4 x 4 horizontal core radiator, a closed rear end and 28” x 3” wheels. The rear seating body option was detachable. Of the 677 units that were made, there are only 8 cars that still exist with the original Model A features. During the 16 months of the Model A production (1903 and 1904), 1,808 units were assembled and sold. These cars provided the cash flow that allowed Ford Motor Co. to develop new and better models that led to the 1909 Model T Ford (The

 

but you are right, and I have no idea where i got that info... someone told me that bout 30 years ago when I was pulling the 4 banger out of my 28 roadster pickup...

1903 Ford Model 'A'
Engine no. 280

101ci Twin-Cylinder Engine
2-Speed Transmission
Chain-Drive Live Rear Axle
Full-Elliptical Leaf Spring Suspension
Mechanical Brake System

 

I am running a straight pipe off of my header and its not any louder than a stock engine with muffler.
And I have a high compression head

 

and don't forget the "F" bomb... fords model F also was 2 banger...

Model F
Year
Production
Wheelbase
Engine
Prices
1905 Model F

84.00 in.
2 cyl., 127.00 CID., 16.00hp
$1,000 - $1,250
1906 Model F

84.00 in.
2 cyl., 128.00 CID., 10.00hp
$1,100 - $1,100

 

then there was the model K....



The Model K had a six-cylinder engine displacing 405 cubic-inches and delivering 40 horsepower, and the Model N had a 149 cubic-inch four with approximately 15 horsepower.

 

Lol ok I guess they did make a 2 cyl. But it has nothing in common with the Model T's 4 cylinder.

 

these guys are on the dyno try'n to make HP....

 

NO! DODGE BROTERS built the early motors and many parts for Ford up to about 1913.