Posted: Sat Jan 10, 2009 2:55 am
Has anyone got, or seen, porting tech videos ? Im after something that covers from beginning to end of everything. Something which would be great probably has:
Bench style - Pitot VS orifice
Gauge style - fluid VS digital
Bench size (obviously dont want construction, but many would im guessing)
Mounting options / styles
Probes / tools (wands, flags, balls, etc)
Making a port mold with some sort of silicone / etc..
How to diagnose poor flow with previous tools
How to "port map" high / low velocity parts.
How to plot a CFM chart as you operate the bench
(insert a few tech's here)
Basic tools for grinding out the port. Scroll sander, burrs, etc.. Obviously iron and alloy.
Comparing results
Bonus sections:
What NOT to do. (ie: open the port so huge you get more CFM than a toilet bowl, but obviously your velo / pres would suffer. General traps for new players).
Building a flow box from a mold of your port for "testing".
I think the video should cover 2v, 4v, flathead, possibly even 2stroke and rotary *shudder*
If nothing exists. Can someone make a good quality one which i can have ? Failing that, i guess im fine.
I know what i can and cannot do, but a good "guide" would be nice. Also help get others involved. Everyone is "oh yer, can you port my head ? cool. mates rates right, just a carton of beer ?"... refusal often offends
Bench style - Pitot VS orifice
Gauge style - fluid VS digital
Bench size (obviously dont want construction, but many would im guessing)
Mounting options / styles
Probes / tools (wands, flags, balls, etc)
Making a port mold with some sort of silicone / etc..
How to diagnose poor flow with previous tools
How to "port map" high / low velocity parts.
How to plot a CFM chart as you operate the bench
(insert a few tech's here)
Basic tools for grinding out the port. Scroll sander, burrs, etc.. Obviously iron and alloy.
Comparing results
Bonus sections:
What NOT to do. (ie: open the port so huge you get more CFM than a toilet bowl, but obviously your velo / pres would suffer. General traps for new players).
Building a flow box from a mold of your port for "testing".
I think the video should cover 2v, 4v, flathead, possibly even 2stroke and rotary *shudder*
If nothing exists. Can someone make a good quality one which i can have ? Failing that, i guess im fine.
I know what i can and cannot do, but a good "guide" would be nice. Also help get others involved. Everyone is "oh yer, can you port my head ? cool. mates rates right, just a carton of beer ?"... refusal often offends