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Vettezuki · 01-25-2009, 02:36 PM

BREAK IN
The head guy was pretty emphatic that you had to be strict about break in procedure for a solid flat tappet cam. Someting to the effect of once installed the motor needed to go straight to 2,500rpm and stay there for 20 minutes. How the heck do you do that on a new motor that isn't tuned for the intake and carb etc. Can you just get it in the ball park with the existing mild hydraulic cam so it start and runs relatively smooth and rich enough not to melt down, then switch the cams and do the break in, then final tuning.

BALANCED ROTATING ASSEMBLY
Since the principle advantage of the Solid Flat Tappet is spinning the motor towards 7k, maybe a little higher, doesn't the assembly need to be fully balanced?

HEAD PORTING
In order for the heads to continue flowing efficiently at this high RPMS, don't they need to be ported?

01-25-2009, 02:36 PM	#398
Vettezuki I, Vettezuki Join Date: Feb 2006 Posts: 14,754 Tweet	IF Solid Flat Tappet BREAK IN The head guy was pretty emphatic that you had to be strict about break in procedure for a solid flat tappet cam. Someting to the effect of once installed the motor needed to go straight to 2,500rpm and stay there for 20 minutes. How the heck do you do that on a new motor that isn't tuned for the intake and carb etc. Can you just get it in the ball park with the existing mild hydraulic cam so it start and runs relatively smooth and rich enough not to melt down, then switch the cams and do the break in, then final tuning. BALANCED ROTATING ASSEMBLY Since the principle advantage of the Solid Flat Tappet is spinning the motor towards 7k, maybe a little higher, doesn't the assembly need to be fully balanced? HEAD PORTING In order for the heads to continue flowing efficiently at this high RPMS, don't they need to be ported? __________________ Motorgen on To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts. Motorgen on To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts. Motorgen Project Car To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts. (active) Motorgen Project Car To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts. (back burner)