My last step improving flow(vid)
Thread Starter
Burning Brakes
Joined: Jan 2008
Posts: 1,187
Likes: 1
From: Superior WI
My last step improving flow(vid)
Well I spent the day out in the garage with my drill press, die grinder, and my valves. I've ported the heads already, so the next step was to reshape the valves a little bit. I thought I'd make a video too so here we go:
Instructor
Joined: Feb 2001
Posts: 211
Likes: 0
From: Chicago ILL
I did somewhat of the same thing when I rebuilt my heads. I noticed the sharp ridge on both int and exh valves. I also went into the bowl area, particularly the transition from the bowl to the seat. I couldn't believe the mismatch.
I didn't flow the heads afterwards but felt that it was time well spent.
Thanks for the vid.
I didn't flow the heads afterwards but felt that it was time well spent.
Thanks for the vid.
Last edited by HiTech5; Feb 21, 2010 at 02:09 PM.
Thread Starter
Burning Brakes
Joined: Jan 2008
Posts: 1,187
Likes: 1
From: Superior WI
It's simply removing material from the path of flow.
I don't have access to a flow bench, but it would have been nice to put a number on what I've done with the heads. No need to touch the seats, I didn't get near them.
I agree, as long as a fella's got his heads apart, might as well do everything he can to improve them. Glad you liked the video
I did somewhat of the same thing when I rebuilt my heads. I noticed to sharp ridge on bot int and exh. I also went into the bowl are particularly the transition from the bowl to the seat. I couldn't believe the mismatch.
I didn't flow the heads afterwards but felt that it was time well spent.
Thanks for the vid.
I didn't flow the heads afterwards but felt that it was time well spent.
Thanks for the vid.
Thread Starter
Burning Brakes
Joined: Jan 2008
Posts: 1,187
Likes: 1
From: Superior WI
Corvette Enthusiast
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2025 C7 of the Year Finalist- Unmodified
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cool video
I enjoyed your video. I liked the music too. Who is it?
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Thread Starter
Burning Brakes
Joined: Jan 2008
Posts: 1,187
Likes: 1
From: Superior WI
Team Owner
Joined: Oct 2004
Posts: 81,241
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From: altered state
St. Jude Donor '05
It would be interesting to take one untouched valve and one you took your grinder to, stick them both in the same port and have them flowed for curiosities sake.
On grinding on those though....who told you to do that?
On grinding on those though....who told you to do that?
Thread Starter
Burning Brakes
Joined: Jan 2008
Posts: 1,187
Likes: 1
From: Superior WI
Thread Starter
Burning Brakes
Joined: Jan 2008
Posts: 1,187
Likes: 1
From: Superior WI
Team Owner
Joined: Oct 2004
Posts: 81,241
Likes: 3,063
From: altered state
St. Jude Donor '05
Not to rock the boat guys but imo leave this stuff alone, cant just blindly take grinders to parts expecting to make a power breakthrough;,ore than likely the part will get ruined, not work right or worse yet fail on you.
Kangi sure you know to get the valve job redone before dropping those in. have them inspected to make sure they didht get weakened in the process. not criticising as it seems youre having fun modding your stock stuff, just sayin to know where the line is and all .
Kangi sure you know to get the valve job redone before dropping those in. have them inspected to make sure they didht get weakened in the process. not criticising as it seems youre having fun modding your stock stuff, just sayin to know where the line is and all .
