Miller Mod Saws and the Echo CS-500P

[MillerModSaws]

Well boys I'm gonna put my 2 cents in before I start. This thread is going strong on a couple other forums. As many of you know all of builders got the boot so to speak. However I promised several guys I would do this build thread and I am a man of my word. Unfortunately for this site there most likely won't be to many other builders input on this saw. So your gonna see what gains I get. As this is the first build of this saw for me. That all said enjoy the thread and hopefully we can make a runner of this saw. Here's my guinea pigs.

 

[MillerModSaws]

Tear down pics.

 

[MillerModSaws]

 

[MillerModSaws]

 

[MillerModSaws]

 

[MillerModSaws]

 

[MillerModSaws]

 

[MillerModSaws]

 

[MillerModSaws]

 

[MillerModSaws]

And here the part that sucks.as a builder I enjoy the knowledge that other builders share as they have tried something different. You can always learn something from someone else if your willing to listen. That said here's my first attempt right or wrong I had a descent gain.

 

[MillerModSaws]

Stock number!
Squish .043"
Comp 170
Exhaust 120
Trans 131
Intake 70 at big opening 82 at point.

 

[MillerModSaws]

This saw has I dome pistion in it and an equally weird combustion chamber. I start by taking .030 off the base and reseting squish to .020" know on this saw I cut my squish band at a 3° angle to accommodate the dome piston.

 

[MillerModSaws]

The intake. Well it be weird. It was at 43% width when I started. I opened it up to 55% angling the top corners down to allow for plenty of ring end location cleareance. The main of the intake now opens at roughly 73° tapering quickly to 85°. I call it the superman intake. Lol.

 

[MillerModSaws]

The transfers well there a mofo. I could not mtch the intake side trans. ND when I got them ground it left a nasty transfer tunnel. Fortunately on this saw I could pull the covers and fix the tunnels. Couple pics of the ugly tunnels as I progressed!

 

[MillerModSaws]

Now I actually lengthened the blow down as I raised the trans. I set these at 125. Here's the final pics of the tunnel covers and ports

 

[MillerModSaws]

The exhaust was at 55% width. I widened it to 65% and raised it to 110.

 

[MillerModSaws]

So final numbers are 110/125/73-85. And after about 5 min run time and cool down this is where my comp landed!

 

[MillerModSaws]

I forgot to the pre exhaust mod pics. But basically I took the deflector off pulled the screen and restrictive tube out of the muffler. Opened the front of the deflector and reinstalled!

 

[Sam_choq]

Have you let one stock for comparision ?

 

[jetmd]

Way to go Carl. Good to see you working on this new project!

Nice job documenting you work and progress.