Mastermind Revisits The 346XP

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Here's a shot looking down the transfers.......in the shot you can see that the shape hasn't been changed at all.

346010_zps5ed6dd10.jpg


The squish band was cut .040 and the squish clearance was set at .020

Just to clarify-you are getting well over 200psi without a pop-up? Thanks for sharing.
 
Randy, awesome thread! Well executed strategy/game plan. Sure would like to see a 346 like this around my place on march 16th.



Joey
 
Just to clarify-you are getting well over 200psi without a pop-up? Thanks for sharing.

I don't use popups at all anymore. This engine has .040 cut from the squish band.

Randy, awesome thread! Well executed strategy/game plan. Sure would like to see a 346 like this around my place on march 16th.



Joey

Thanks for the nod Joey. Thomas1 has a 346 I built and he's in Central VA. I'm not going to be able to make the GTG on the 16th. I've got too many over plans that come together around the same time. I am hoping to send Roll Tide's 261 with a nice chain though......
 
More to be gained from cutting the squish than pop up's most of the time from what I've seen. Here's a dumb question what's the most compression you've seen or gotten with a pop up ?
 
More to be gained from cutting the squish than pop up's most of the time from what I've seen. Here's a dumb question what's the most compression you've seen or gotten with a pop up ?

Not wanting to start a fight but You need to do some more research before commenting... There has been many of threads debating what's better popup vs cut squish band. There's a lot of factors that come into play. Lots and lots of times popups have proved them selfs to make the same power. One main downfall of popup are future rebuilds. Cut squish band you can just swap out the piston and carry on, popup you need to create the popup on the new piston. Not the avg Jo has the tools and knowledge to do a pop up.. There is may more variables to account for. MY .02.
 
I dont recall saying performance to be gained. I said in most cases if I do recall. So maybe I need to speak clearly next time so people understand. I need no correction you just proved my point while trying to correct me.
 
So are you taking the day off randy or are we gonna see some video????:popcorn::clap:

No video today Dom. I'm gonna finish my shipping then fix that muffler. I need some wood here at the shop......since we've been cutting so much firewood lately I've not been bringing any rounds here.
 
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