31mm valve seat
- Thread starter FirePowerMinis
- Start date
- Tags 31mm seat valve
where did you get the seat cutter? Did it locate off of the valve guide. I have heads and oversize seats to install but do not know how to do it. Tried to bore out a seat with my boring head on a bridgeport but it did not cut well with the old seat in. Think I need to remove old seat first and now realize I need a cutter that uses guide to keep bored hole concentric with the guide.
found it looks like I would have to buy the whole fast cut system adding up all the parts needed it is over $1000.00 dollars. according to the catalog cutter 1995 has a range of .551 to .850 isn't the seat hole you bored over 1" ? or is that measurement the radius of the hole? Sorry for all the questions.
Those seats look real good! Im getting ready to build a head myself. Im just gonna circular interpulate the valve seat pocket on a cnc mill. How much interference fit do you use between the seat and the diameter of the pocket? I figure a good .005" will keep that seat in there. Should be easy enough to grow that alum head that much to get that seat in there.....right???
Thanks.
Port area to curtain, bore/wall shrouding, mass v flow, keeping short side active, the usual. <200cc build, just for fun, to get a baseline. Not sure how "in" I'm gonna get with these. You do some nice stuff. That's where my bike stuff ends up. 170cc, 26hp@12,800 air-cooled 2v. So far. Switching to methanol this year.
Port area to curtain, bore/wall shrouding, mass v flow, keeping short side active, the usual. <200cc build, just for fun, to get a baseline. Not sure how "in" I'm gonna get with these. You do some nice stuff. That's where my bike stuff ends up. 170cc, 26hp@12,800 air-cooled 2v. So far. Switching to methanol this year.
