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Search found 1270 matches

by Steve.k
Mon Jun 01, 2020 11:03 pm
Forum: Engine Tech
Topic: Plenum volume
Replies: 30
Views: 1625

Re: Plenum volume

It seems like its a bit of black art. But we will test it. I’ve had a few comments that something in system is holding it back. This could be intake ,cam , or headers. Or all three. Maybe im expecting to much but we will try and see what we get
by Steve.k
Mon Jun 01, 2020 11:44 am
Forum: Engine Tech
Topic: Plenum volume
Replies: 30
Views: 1625

Re: Plenum volume

0341AB11-8A7B-48B8-B16B-B6D3C111808B.jpeg
My son finished the two plenum extensions!!
by Steve.k
Wed May 27, 2020 11:26 pm
Forum: Engine Tech
Topic: Plenum volume
Replies: 30
Views: 1625

Re: Plenum volume

Good friend of mine runs s old Hilborn gas injection on bbc with velocity stacks. That thing is dead on each run and flat out hauls ass. They set on dyno and never touch again. Seems to never change.
by Steve.k
Tue May 26, 2020 12:59 pm
Forum: Engine Tech
Topic: Plenum volume
Replies: 30
Views: 1625

Re: Plenum volume

Thank you. Exactly the answer im looking for.
by Steve.k
Tue May 26, 2020 12:14 pm
Forum: Engine Tech
Topic: Plenum volume
Replies: 30
Views: 1625

Re: Plenum volume

So the further the spread the closer the plenum size is to a match or what is the correct answer. ?
by Steve.k
Tue May 26, 2020 12:34 am
Forum: Engine Tech
Topic: Plenum volume
Replies: 30
Views: 1625

Re: Plenum volume

My sons going to make a 1/2 inch and 1 inch spacer we can test. Thanks guys.
by Steve.k
Mon May 25, 2020 1:18 pm
Forum: Engine Tech
Topic: Plenum volume
Replies: 30
Views: 1625

Re: Plenum volume

Interesting guys. I guess we could fab a 1 inch bolt in spacer below lid. That way it’s removable for track testing.
by Steve.k
Mon May 25, 2020 10:04 am
Forum: Engine Tech
Topic: Mercury (Ford) 289 marine, worth buying?
Replies: 17
Views: 769

Re: Mercury (Ford) 289 marine, worth buying?

Never knew they even existed. Be cool to have just anyway. There extremely hard to find here in any form.
by Steve.k
Mon May 25, 2020 9:48 am
Forum: Engine Tech
Topic: Plenum volume
Replies: 30
Views: 1625

Re: Plenum volume

02CE3F60-7EBD-4923-849C-60D1459EA84E.png
Look at inside.
B81CD665-2D47-44C7-914F-FF54D49BDD4E.png
Fairly straight shot in
by Steve.k
Mon May 25, 2020 9:35 am
Forum: Engine Tech
Topic: Plenum volume
Replies: 30
Views: 1625

Re: Plenum volume

6A48DAA4-F6CA-4FE5-AB4C-66F6CF80C284.png Plenum in question. 434 cubes now. Tuffxf i was just talking with some guys who were questioning size if this plenum. Still could be little shy on cam.Thanks for feed back guys. I know nothing about sizing plenums. Always bought why was available off shelf. ...
by Steve.k
Sun May 24, 2020 10:39 pm
Forum: Engine Tech
Topic: Plenum volume
Replies: 30
Views: 1625

Re: Plenum volume

This engine has displacement of 434 and intake is 377.
by Steve.k
Sun May 24, 2020 9:32 pm
Forum: Engine Tech
Topic: Plenum volume
Replies: 30
Views: 1625

Re: Plenum volume

8C39439E-2B6F-4000-A7B9-04D838048613.png What im saying is when you have your peak tq numbers hold nearly the same for 4-600 rpm. Peak say at 5400 then at 6000 still nearly the same. Some say your plenum should at least match cubic inch of engine. So if you have 400 cubes you plenum should be same....
by Steve.k
Sun May 24, 2020 10:20 am
Forum: Engine Tech
Topic: Plenum volume
Replies: 30
Views: 1625

Plenum volume

How can you tell if you have enough /or not enough plenum volume. What are the tell tale signs. I was chatting with Another builder and he said when your peak tq stacks up for 3-400 rpm thats a sign. What are your guys idea on that.
by Steve.k
Sat May 23, 2020 2:40 pm
Forum: Engine Tech
Topic: Oil pressure vs volume
Replies: 91
Views: 3005

Re: Oil pressure vs volume

Thanks Kevin. Appreciate the help I’ll get it fabbed in. Had everything tore down for inspection and looks good. Few things to touch up and back together.
by Steve.k
Fri May 22, 2020 12:50 pm
Forum: Engine Tech
Topic: Oil pressure vs volume
Replies: 91
Views: 3005

Re: Oil pressure vs volume

0E04B4CE-5EBD-4C7E-8928-5824038A7512.jpeg
9872C155-7790-41D2-A1E8-1543F8638FFF.jpeg
DE0CF5F3-D54A-4027-88EF-FE86728920AD.jpeg
Excuse dirty pan. Everything going in parts washer shortly.