The Ford Barn

1928jalopy · 11-13-2023, 09:49 PM

I purchased what a gentlemen told me was a Winfield SU1A camshaft, but after closer inspection, it's definitely not. It looks to me to be a regrind that was probably preformed by Winfield just not at the SU1A specs. I have attached the camshaft spec card and would like to know some thoughts on type of performance I could expect. I'm going with the typical build - 59AB, 2x2 Carbs, 40 Over, heads etc.
Thanks

flatjack9 · 11-13-2023, 09:52 PM

Post a picture of the end of the camshaft. Is it stamped Winfield?

1928jalopy · 11-13-2023, 10:02 PM

I's not stamped with the Winfield logo. 5T F235 is on the end and that's why I believe it's just a regrind, which is totally OK. I'm really more interested in the overall performance characteristics.

petehoovie · 11-14-2023, 12:14 AM

Quote:

Originally Posted by 1928jalopy

I purchased what a gentlemen told me was a Winfield SU1A camshaft, but after closer inspection, it's definitely not. It looks to me to be a regrind that was probably preformed by Winfield just not at the SU1A specs. I have attached the camshaft spec card and would like to know some thoughts on type of performance I could expect. I'm going with the typical build - 59AB, 2x2 Carbs, 40 Over, heads etc.
Thanks

Pete · 11-14-2023, 01:47 AM

From the shape of the lobe and the tag numbers, it is a very mild street grind, somewhat like a 3/4 Winfield. Not much more than stock.
The genuine SU1A was a good all around hot rod street cam in it's day.
It did all things equally poorly. Here are the specs from an original ground by Ed himself.

Winfield SU1A (1953)
360 lift 280 duration on the intake 28-72
360 lift 286 duration on the ex. 74-32
111 degree lobe separation

1928jalopy · 11-14-2023, 09:58 AM

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Pete - Thanks for the information.

Ol' Ron · 11-15-2023, 03:06 PM

You have a small engine, thus low compression. For atreet use torque is better than HP, here you do;t have either. .360 lift max with 220 duration, this keeps the torque in the right place. Get g=the small 65 ccl heads for more CR.. Carbs don't do much on this size engine, get JWL;s book, save you alot of money and abetter engine./
Gramps

11-13-2023, 09:52 PM	#2
flatjack9 Senior Member Join Date: May 2010 Location: Oshkosh, Wi Posts: 4,526	Re: Winfield Cam Question Post a picture of the end of the camshaft. Is it stamped Winfield?

11-13-2023, 10:02 PM	#3
1928jalopy Junior Member Join Date: Dec 2010 Location: Keller, TX Posts: 16	Re: Winfield Cam Question I's not stamped with the Winfield logo. 5T F235 is on the end and that's why I believe it's just a regrind, which is totally OK. I'm really more interested in the overall performance characteristics.

11-14-2023, 01:47 AM	#5
Pete Senior Member Join Date: May 2010 Location: Wa. Posts: 5,408	Re: Winfield Cam Question From the shape of the lobe and the tag numbers, it is a very mild street grind, somewhat like a 3/4 Winfield. Not much more than stock. The genuine SU1A was a good all around hot rod street cam in it's day. It did all things equally poorly. Here are the specs from an original ground by Ed himself. Winfield SU1A (1953) 360 lift 280 duration on the intake 28-72 360 lift 286 duration on the ex. 74-32 111 degree lobe separation

11-14-2023, 09:58 AM	#6
1928jalopy Junior Member Join Date: Dec 2010 Location: Keller, TX Posts: 16	Re: Winfield Cam Question Sponsored Links (Register now to hide all advertisements) Pete - Thanks for the information.

11-15-2023, 03:06 PM	#7
Ol' Ron Senior Member Join Date: May 2010 Location: Chester Vt Posts: 8,860	Re: Winfield Cam Question You have a small engine, thus low compression. For atreet use torque is better than HP, here you do;t have either. .360 lift max with 220 duration, this keeps the torque in the right place. Get g=the small 65 ccl heads for more CR.. Carbs don't do much on this size engine, get JWL;s book, save you alot of money and abetter engine./ Gramps