Valve lifters…solid/hydraulic/roller tappet/flat tappet?

[zrayr]

Originally Posted by blykins

Try to explain that to the pulling truck guys running 557ci BBF's (4.420" bore, 4.500" stroke) turning 8000 rpms....

There are lots of spoken generalities with engines that are not always the case.

I just edited my last post to include, "...That said, for example I am much more happy riding the long stroke 650cc Triumph vs. the short stroke 650cc BSA..."

which is exactly the same as the example you provided. ha ha. Especially on the dirt track , the long stroke, high torque Triumphs ruled. Lower torque, higher rpm machines consistently ate their dust & finished out of the running

Z.

[DAVID GAGNARD]

Thanks David, for more of the real world comments.
Can you tell me why you decided on flat tappets?
Cheers,

Because back in the mid 90's when I built this engine, it was to be a street cruiser/show car/sunday driver and I was dirt poor and the camshaft with lifters from SUMMIT at that time was about $79.00!!!!!!!!!!!!!!

Every street engine I've built for myself since has gotten a hydraulic roller camshaft....
My race engine uses a solid lifter,roller camshaft.......

The hydraulic roller camshafts just have so much more to offer,it's a no-brainer for me...

David