Rotor Cutting Info
Senior Member
Joined: Dec 2003
Posts: 162
Cool info, as that tells me how much I can safely remove to lighten rotors. Thanks for sharing it. I will have to file that away for future reference.
Didn't however answer my original question, and I now realise that I didn't word it very well.
So lets try again.....
The ports are opened and closed by the outer edge of the rotor. But if you look closely, its effectively the side sealthat really closes off the port as there is a tiny gap between the side of the rotor and the side housing (and if that gap reaches zero bad things happen).
So in 'theory' if you remove metal from the rotor above the side seals you can improve the flow in that first/ last 10-20 degrees of the inlet cycle which will effectively extend the duration without having to go as far as a bridge port.
Bill
Didn't however answer my original question, and I now realise that I didn't word it very well.
So lets try again.....
The ports are opened and closed by the outer edge of the rotor. But if you look closely, its effectively the side sealthat really closes off the port as there is a tiny gap between the side of the rotor and the side housing (and if that gap reaches zero bad things happen).
So in 'theory' if you remove metal from the rotor above the side seals you can improve the flow in that first/ last 10-20 degrees of the inlet cycle which will effectively extend the duration without having to go as far as a bridge port.
Bill
Thread Starter
Senior Member
Joined: Dec 2002
Posts: 947
From: Bayou-self Louisiana
Originally Posted by bill shurvinton' date='Dec 23 2003, 02:59 AM
Cool info, as that tells me how much I can safely remove to lighten rotors. Thanks for sharing it. I will have to file that away for future reference.
Didn't however answer my original question, and I now realise that I didn't word it very well.
So lets try again.....
The ports are opened and closed by the outer edge of the rotor. But if you look closely, its effectively the side sealthat really closes off the port as there is a tiny gap between the side of the rotor and the side housing (and if that gap reaches zero bad things happen).
So in 'theory' if you remove metal from the rotor above the side seals you can improve the flow in that first/ last 10-20 degrees of the inlet cycle which will effectively extend the duration without having to go as far as a bridge port.
Bill
Didn't however answer my original question, and I now realise that I didn't word it very well.
So lets try again.....
The ports are opened and closed by the outer edge of the rotor. But if you look closely, its effectively the side sealthat really closes off the port as there is a tiny gap between the side of the rotor and the side housing (and if that gap reaches zero bad things happen).
So in 'theory' if you remove metal from the rotor above the side seals you can improve the flow in that first/ last 10-20 degrees of the inlet cycle which will effectively extend the duration without having to go as far as a bridge port.
Bill
You want to PM him.
Senior Member
Joined: Oct 2003
Posts: 177
I've been thinking about this for a while (re: the angling of the rotors edge) all im concerned about is balance of the rotor afterwards?
Would it be a non issue because you'd be taking the same ammount off each 'side' of the rotor?
Would it be a non issue because you'd be taking the same ammount off each 'side' of the rotor?
