The Ford Barn

Neil Mylar LakewoodCA · 02-24-2015, 04:21 PM

I am buying a 1928 Tudor Sedan, soon.

I plan on putting a high compression police head on it (B on the head).

I have the option of adding either a 3:27 R&P or a 3:54 R&P.

In an earlier thread I asked if the police head would be enough to propell the 3:27 R&P in a light weight pickup truck. The concenses seemed to be yes.

As you know a Tudor is a heavier body. Would it be better to use a 3:54 in the Tudor or would the police head be enough to propell the 3:27?

Also, most parts houses sell a speedometer gear for the 3:54. No one seems to have the correct speedometer gear for the 3:27. As a default, some recommend the same speedometer gear as for the 3:54, which probably means that the speedometer would be off a little. Can anyone comfirm this?

Thank you,
Neil

Tom Wesenberg · 02-24-2015, 04:49 PM

Bert's has the correct speedometer adaptor for the 3.27 ring and pinion, and that's the gears I'd like to put in my 29 Tudor.

Synchro909 · 02-24-2015, 05:00 PM

I am seriously considering putting a set of 16" wheels on my A with 195 - 80 tyres. That means they will be smaller than the originals but to compensate, I'm also considering changing to a 3.54 diff. Any comments/recommendations?

modelAtony · 02-24-2015, 05:02 PM

Quote:

Originally Posted by Neil Mylar LakewoodCA

I am buying a 1928 Tudor Sedan, soon.

I plan on putting a high compression police head on it (B on the head).

I have the option of adding either a 3:27 R&P or a 3:54 R&P.

In an earlier thread I asked if the police head would be enough to propell the 3:27 R&P in a light weight pickup truck. The concenses seemed to be yes.

As you know a Tudor is a heavier body. Would it be better to use a 3:54 in the Tudor or would the police head be enough to propell the 3:27?

Also, most parts houses sell a speedometer gear for the 3:54. No one seems to have the correct speedometer gear for the 3:27. As a default, some recommend the same speedometer gear as for the 3:54, which probably means that the speedometer would be off a little. Can anyone comfirm this?

Thank you,
Neil

Neil, I have 31 tudor and have been running 3:27 gear since 2001. This was when my car had orig head and only modification was electronic ign. and alternator. I was running this gear when everyone was saying it was to high of a gear. I was still able to pull off from a stop sign in 2 nd gear. This was the first major change I did and I'm glad I did. check on my avatar and see the other changes I made. You will only get 7 mph more speed and not the 10 mph they all advertise. The new speedometer gear you will need is the 17 tooth gear. Have fun modelAtony tony white Lafayette, LA

BRENT in 10-uh-C · 02-24-2015, 05:03 PM

Based on my experiences installing several 3.27 ratios, it is not the head that makes or breaks the deal. It is the cam. I have installed one 3.27 ratio with a stock head (milled only to true it up) and an IB330 cam and it did fine in a '30 Coupe albeit not as agile as one with better breathing and more compression. I have also installed a 3.27 in a '29 Roadster that had a rebuilt engine with a Brumfield head and a 'touring' cam. It was a 'slug' IMHO.

Those two cars and their drive train were not totally comparing apples-to-apples, but it has allowed me to form an opinion that camshafts create better driveabilty than what a hi-compression head does. Note I did not say more horsepower, just better driveability.

qmdv · 02-24-2015, 05:15 PM

Sponsored Links (Register now to hide all advertisements)

I had a 3.27 in a 29 roadster pickup with 750x16 tires. Engine was a B motor, C crank, Cook 4 port head and two Winfield carbs. Ran great. Could still kick but on a Porsche 914 that I encountered on way home from work. He hated me.

Tim

BRENT in 10-uh-C · 02-24-2015, 05:18 PM

Quote:

Originally Posted by modelAtony

Neil, I have 31 tudor and have been running 3:27 gear since 2001. This was when my car had orig head and only modification was electronic ign. and alternator. I was running this gear when everyone was saying it was to high of a gear. I was still able to pull off from a stop sign in 2 nd gear. This was the first major change I did and I'm glad I did. check on my avatar and see the other changes I made. You will only get 7 mph more speed and not the 10 mph they all advertise. The new speedometer gear you will need is the 17 tooth gear. Have fun modelAtony tony white Lafayette, LA

Yes, the speed difference is only about 16%, ....which equates out to 60 MPH with the 3.27 when previously driving 52 MPH.

ModelAMike1930 · 02-24-2015, 06:27 PM

I have 16's on my pickup, but never go fast enough to make any difference on the speedometer--lol

Patrick L. · 02-24-2015, 07:00 PM

I would think terrain comes into play here.

modelAsteve · 02-24-2015, 07:15 PM

Brent- What is an IB330 cam?

Mitch//pa · 02-24-2015, 07:21 PM

Quote:

Originally Posted by modelAsteve

Brent- What is an IB330 cam?

here is some info

http://www.fordgarage.com/pages/stipecamshaftspecs.htm

BRENT in 10-uh-C · 02-24-2015, 07:47 PM

Quote:

Originally Posted by Patrick L.

I would think terrain comes into play here.

To a certain extent it does, but I live in the mountains of Tennessee, so our terrain is a good representative of how these gears will perform in the mountains.

tbirdtbird · 02-24-2015, 07:56 PM

"What is an IB330 cam?"

it is a thing of beauty. we have installed several of them, including my own car. really wakes the motor up. Stock motor breathes very poorly, and labors going thru the gears. With the IB330 the car just wants to go with hardly any throttle; you can hear and feel that it is not laboring. It is a takeoff on what Ford did for the Model B engine, only better still

BRENT in 10-uh-C · 02-25-2015, 07:49 AM

Quote:

Originally Posted by tbirdtbird

"What is an IB330 cam?"

it is a thing of beauty. we have installed several of them, including my own car. really wakes the motor up. Stock motor breathes very poorly, and labors going thru the gears. With the IB330 the car just wants to go with hardly any throttle; you can hear and feel that it is not laboring. It is a takeoff on what Ford did for the Model B engine, only better still

Here's a thought, ....what do we do for cams should these ever become unavailable?

tbirdtbird · 02-25-2015, 12:13 PM

Jim Brierley has masters that he has regrinds done from. He just posted some of his specs on a couple cams. We have installed a couple of his cams and they are very nice also!

Dave in Boise · 02-26-2015, 04:02 PM

I would think it depends on terrain as indicated above as well as if you are planning on doing any "Parade Crawls".. You'll wear out your knee constantly taking it in and out of gear in a long parade.. Touring on the flats would be a hoot though

MrBruce · 02-26-2015, 04:11 PM

I've been running 3:54's in my 31 S/W Town Sedan with a stock B motor (soon to be built up for touring). We have put thousands of miles on it and it's good for flat roads but not for long hills with the current power situation. Once the new head and downdraft are on, I'm sure it will be much better on the hills. The Tudor is a little lighter than our S/W Town Sedan which should help.

02-24-2015, 04:21 PM	#1
Neil Mylar LakewoodCA Senior Member Join Date: May 2010 Location: Lakewood, CA Posts: 1,346	3:27 or 3:54 ?? I am buying a 1928 Tudor Sedan, soon. I plan on putting a high compression police head on it (B on the head). I have the option of adding either a 3:27 R&P or a 3:54 R&P. In an earlier thread I asked if the police head would be enough to propell the 3:27 R&P in a light weight pickup truck. The concenses seemed to be yes. As you know a Tudor is a heavier body. Would it be better to use a 3:54 in the Tudor or would the police head be enough to propell the 3:27? Also, most parts houses sell a speedometer gear for the 3:54. No one seems to have the correct speedometer gear for the 3:27. As a default, some recommend the same speedometer gear as for the 3:54, which probably means that the speedometer would be off a little. Can anyone comfirm this? Thank you, Neil

02-24-2015, 04:49 PM	#2
Tom Wesenberg Senior Member Join Date: May 2010 Location: Mpls, MN Posts: 27,582	Re: 3:27 or 3:54 ?? Bert's has the correct speedometer adaptor for the 3.27 ring and pinion, and that's the gears I'd like to put in my 29 Tudor.

02-24-2015, 05:00 PM	#3
Synchro909 Senior Member Join Date: Jun 2014 Location: Melbourne, Australia Posts: 7,497	Re: 3:27 or 3:54 ?? I am seriously considering putting a set of 16" wheels on my A with 195 - 80 tyres. That means they will be smaller than the originals but to compensate, I'm also considering changing to a 3.54 diff. Any comments/recommendations? __________________ I'm part of the only ever generation with an analogue childhood and a digital adulthood.

02-24-2015, 05:03 PM	#5
BRENT in 10-uh-C Senior Member Join Date: May 2010 Location: Eastern Tennessee Posts: 11,521	Re: 3:27 or 3:54 ?? Based on my experiences installing several 3.27 ratios, it is not the head that makes or breaks the deal. It is the cam. I have installed one 3.27 ratio with a stock head (milled only to true it up) and an IB330 cam and it did fine in a '30 Coupe albeit not as agile as one with better breathing and more compression. I have also installed a 3.27 in a '29 Roadster that had a rebuilt engine with a Brumfield head and a 'touring' cam. It was a 'slug' IMHO. Those two cars and their drive train were not totally comparing apples-to-apples, but it has allowed me to form an opinion that camshafts create better driveabilty than what a hi-compression head does. Note I did not say more horsepower, just better driveability. __________________ . BRENT in 10-uh-C . www.model-a-ford.com ...(...Finally Updated!! ) .

02-24-2015, 05:15 PM	#6
qmdv Senior Member Join Date: Dec 2012 Location: Payette, ID Posts: 937	Re: 3:27 or 3:54 ?? Sponsored Links (Register now to hide all advertisements) I had a 3.27 in a 29 roadster pickup with 750x16 tires. Engine was a B motor, C crank, Cook 4 port head and two Winfield carbs. Ran great. Could still kick but on a Porsche 914 that I encountered on way home from work. He hated me. Tim

02-24-2015, 06:27 PM	#8
ModelAMike1930 Senior Member Join Date: Oct 2013 Location: Illinois Posts: 382	Re: 3:27 or 3:54 ?? I have 16's on my pickup, but never go fast enough to make any difference on the speedometer--lol

02-24-2015, 07:00 PM	#9
Patrick L. Senior Member Join Date: May 2010 Location: Largo Florida Posts: 7,225	Re: 3:27 or 3:54 ?? I would think terrain comes into play here.

02-24-2015, 07:15 PM	#10
modelAsteve Senior Member Join Date: Nov 2010 Location: Penn Valley (Nor-Cal) Ca Posts: 128	Re: 3:27 or 3:54 ?? Brent- What is an IB330 cam?

02-24-2015, 07:56 PM	#13
tbirdtbird BANNED Join Date: May 2012 Location: inside your RAM Posts: 3,134	Re: 3:27 or 3:54 ?? "What is an IB330 cam?" it is a thing of beauty. we have installed several of them, including my own car. really wakes the motor up. Stock motor breathes very poorly, and labors going thru the gears. With the IB330 the car just wants to go with hardly any throttle; you can hear and feel that it is not laboring. It is a takeoff on what Ford did for the Model B engine, only better still __________________ '31 180A

02-25-2015, 12:13 PM	#15
tbirdtbird BANNED Join Date: May 2012 Location: inside your RAM Posts: 3,134	Re: 3:27 or 3:54 ?? Jim Brierley has masters that he has regrinds done from. He just posted some of his specs on a couple cams. We have installed a couple of his cams and they are very nice also! __________________ '31 180A Last edited by tbirdtbird; 02-25-2015 at 12:25 PM.

02-26-2015, 04:02 PM	#16
Dave in Boise Senior Member Join Date: May 2010 Posts: 330	Re: 3:27 or 3:54 ?? I would think it depends on terrain as indicated above as well as if you are planning on doing any "Parade Crawls".. You'll wear out your knee constantly taking it in and out of gear in a long parade.. Touring on the flats would be a hoot though

02-26-2015, 04:11 PM	#17
MrBruce Senior Member Join Date: Oct 2014 Location: Charlotte, NC Posts: 310	Re: 3:27 or 3:54 ?? I've been running 3:54's in my 31 S/W Town Sedan with a stock B motor (soon to be built up for touring). We have put thousands of miles on it and it's good for flat roads but not for long hills with the current power situation. Once the new head and downdraft are on, I'm sure it will be much better on the hills. The Tudor is a little lighter than our S/W Town Sedan which should help.