Winfield grind on camshaft.

old-ford

old-ford

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