Dave walks us through performing a pocket port on a RB26. He shows the tools he uses and the techniques! headgamesmotorworks.com/colle... headgamesmotorworks.com/colle...
Same here from malaysia! I learned a lot from these videos and slowly learned about theories of porting then succesfully increased power of the bikes i’ve built💪🏻
@headgames I built one in 2017 that made almost 1000hp. Nice big oil drain on the back of the head. Oil flow restrictor to the head and a proper billet oil pump with a collar on the crank. I would have liked to do a main bearing brace as the blocks like to crack where the oil feed is on the side of the block. The brace eliminates that.
Do you use the same percentages valve/throat on the intake and the exhaust? Or can you increase the percentage for the exhaust since the charge is being pushed out?
if you mean where the seat is kinda appearing bigger than the casting? Like there is casting you can't get to. I suggest always to just leave it. There is not enough gains to go through the trouble of trying to fix it.
like at the throat of the valve seat, the casting is larger on one side. you can't port because its already too large but you know there will be some turbulence from the incoming air at that point which slows down air.@@headgames
yeah but the alternative is pulling seats out, welding, reshaping, cutting new seats in. Not worth all that effort and certainly don't think a customer is paying for it. We could theorize what happens to that area but I have never seen it stop an engine making power. @@azizkhan1180
I could show you how to remove them, and even putting them in. BUT they do not come sized on the inner diameter. That is where you need a machine shop with tooling to resize the guide for valve to guide clearance. I don't think there is an advantage of doing that yourself.
Sorry bud. They sell fast and take forever to get them back in stock. If you fill out the "get notification" of when they are in stock you would be ahead of the pack.
