The Ford Barn

old-ford · 04-01-2018, 04:35 PM

Hello.
I`m building a G28T (german model B engine with full oil pressuring)
The spec is 0.30 over, 1.7 intake valves, ported intake, lightened flywheel, winfield aluminium head, 7:1 compression. Planing a single 94 Ford/holley on an Ansen intake.
I have the choice of a Winfield 1r or a Winfield 1a camshaft. The engine is going in a lightweight speedster. The use of the car wil mostly be driving on the streets. So the question is who of these camshaft to use? Will the 1a be to radical for road use?

Chuck Sea/Tac · 04-01-2018, 10:48 PM

I’m running an SU 1, and I like it. Will cow hop at idle in first. Not a parade car.

Dodge · 04-01-2018, 11:05 PM

Send a PM to Jim Brierley and ask, if he doesn’t chime in here soon.

BILL WILLIAMSON · 04-02-2018, 09:15 AM

Search "WINFIELD"---LOTS of interesting HISTORY!!!
Bill Curator

Jim Brierley · 04-02-2018, 10:53 AM

The 1R is quite mild, a good touring cam although many restorers think it idles too unlike a stock cam, it was a track grind when new but times have changed. The 1A is a lot more radical, idles lumpy, looses a little power at lower RPM's but more than makes up for it on the top end. It was popular for dry-lakes racing back in the day. I run the 1A in my speedster and like it, you just have to drive it a little differently. I dynoed my speedster with the 1R and peak HP was at 3900. That was with three 81 carbs and stock size valves. Haven't dynoed the 1A but suspect its peak would be near 5,000?

johnneilson · 04-02-2018, 10:57 AM

Sponsored Links (Register now to hide all advertisements)

Jim will probably chime in here anyways

1A is 285° .362 lift
1R is 266° .350 lift

more duration means less low end power usually

IMHO, if driven on street go smaller, easier to drive

John

old-ford · 04-02-2018, 11:29 AM

Thanks for good comments. Think I'll try the 1a and see how it works.

Pete · 04-02-2018, 06:06 PM

A far better choice would be a 1007B.
Short duration, HIGH rate of lift.
More torque at low rpm.

Jim Brierley · 04-03-2018, 12:12 PM

johnnielson is right, completely.

nick c · 04-03-2018, 12:14 PM

Is the 1007B available in a regrind?
thanks nick c

old Tom · 04-03-2018, 05:26 PM

Pete can grind it for You.

04-01-2018, 04:35 PM	#1
old-ford Junior Member Join Date: Mar 2011 Location: Norway Posts: 6	Winfield grind on camshaft. Hello. I`m building a G28T (german model B engine with full oil pressuring) The spec is 0.30 over, 1.7 intake valves, ported intake, lightened flywheel, winfield aluminium head, 7:1 compression. Planing a single 94 Ford/holley on an Ansen intake. I have the choice of a Winfield 1r or a Winfield 1a camshaft. The engine is going in a lightweight speedster. The use of the car wil mostly be driving on the streets. So the question is who of these camshaft to use? Will the 1a be to radical for road use?

04-01-2018, 10:48 PM	#2
Chuck Sea/Tac Senior Member Join Date: May 2010 Location: Between Seattle & Tacoma Posts: 2,354	Re: Winfield grind on camshaft. I’m running an SU 1, and I like it. Will cow hop at idle in first. Not a parade car.

04-01-2018, 11:05 PM	#3
Dodge Senior Member Join Date: Nov 2011 Location: Sonoma, CA. Posts: 1,496	Re: Winfield grind on camshaft. Send a PM to Jim Brierley and ask, if he doesn’t chime in here soon.

04-02-2018, 09:15 AM	#4
BILL WILLIAMSON Senior Member Join Date: Dec 2010 Location: FRESNO, CA Posts: 12,560	Re: Winfield grind on camshaft. Search "WINFIELD"---LOTS of interesting HISTORY!!! Bill Curator __________________ "THE ASSISTANT GURU OF STUFF"

04-02-2018, 10:53 AM	#5
Jim Brierley Senior Member Join Date: Jun 2010 Location: Temecula, CA Posts: 4,085	Re: Winfield grind on camshaft. The 1R is quite mild, a good touring cam although many restorers think it idles too unlike a stock cam, it was a track grind when new but times have changed. The 1A is a lot more radical, idles lumpy, looses a little power at lower RPM's but more than makes up for it on the top end. It was popular for dry-lakes racing back in the day. I run the 1A in my speedster and like it, you just have to drive it a little differently. I dynoed my speedster with the 1R and peak HP was at 3900. That was with three 81 carbs and stock size valves. Haven't dynoed the 1A but suspect its peak would be near 5,000?

04-02-2018, 10:57 AM	#6
johnneilson Senior Member Join Date: Jun 2010 Location: 34.22 N 118.36 W Posts: 1,054	Re: Winfield grind on camshaft. Sponsored Links (Register now to hide all advertisements) Jim will probably chime in here anyways 1A is 285° .362 lift 1R is 266° .350 lift more duration means less low end power usually IMHO, if driven on street go smaller, easier to drive John __________________ As Carroll Smith wrote; All Failures are Human in Origin.

04-02-2018, 11:29 AM	#7
old-ford Junior Member Join Date: Mar 2011 Location: Norway Posts: 6	Re: Winfield grind on camshaft. Thanks for good comments. Think I'll try the 1a and see how it works.

04-02-2018, 06:06 PM	#8
Pete Senior Member Join Date: May 2010 Location: Wa. Posts: 5,407	Re: Winfield grind on camshaft. A far better choice would be a 1007B. Short duration, HIGH rate of lift. More torque at low rpm.

04-03-2018, 12:12 PM	#9
Jim Brierley Senior Member Join Date: Jun 2010 Location: Temecula, CA Posts: 4,085	Re: Winfield grind on camshaft. johnnielson is right, completely.

04-03-2018, 12:14 PM	#10
nick c Senior Member Join Date: Aug 2010 Posts: 260	Re: Winfield grind on camshaft. Is the 1007B available in a regrind? thanks nick c

04-03-2018, 05:26 PM	#11
old Tom Senior Member Join Date: May 2010 Posts: 195	Re: Winfield grind on camshaft. Pete can grind it for You.