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Search found 204 matches

by frnkeore
Sat Aug 08, 2020 11:41 am
Forum: Engine Tech
Topic: Low and medium lift Flow
Replies: 38
Views: 1633

Re: Low and medium lift Flow

Hi Randy, In my OP, the lift I cited was .650 and most head mfg, cite lifts to at least .600 so, that's the range I'm interested in but, you have a point if someone is using a common, mild 218 @ .050 type cam of ~.450 lift. From what I have read, in researching this question is, high, low lift flow ...
by frnkeore
Sat Aug 08, 2020 11:20 am
Forum: Vintage/Classic/Historical Engine Tech
Topic: Rover aluminum V-8??
Replies: 14
Views: 328

Re: Rover aluminum V-8??

A quick question.......Has anyone ever wet sleeved a 215 to 3.8? Seems like it could be possible, with it's 4.24 bore spacing. IIRC, Rover had problems with sleeves slipping down, so even less support might not be good science. I wasn't thinking about a straight sleeve but, a flanged sleeve. It see...
by frnkeore
Fri Aug 07, 2020 2:52 am
Forum: Vintage/Classic/Historical Engine Tech
Topic: Rover aluminum V-8??
Replies: 14
Views: 328

Re: Rover aluminum V-8??

A quick question.......

Has anyone ever wet sleeved a 215 to 3.8?

Seems like it could be possible, with it's 4.24 bore spacing.
by frnkeore
Thu Aug 06, 2020 4:37 pm
Forum: Vintage/Classic/Historical Engine Tech
Topic: Rover aluminum V-8??
Replies: 14
Views: 328

Re: Rover aluminum V-8??

Great info. Even though I'm a "Die Hard" Ford guy, Even with the thread stripping issue, I kinda liked these engines. Chet Herbert, liked them, twice as much as most. That's Chet Herbert, of Herbert cams. I live about 5 miles from his shop and got to see this car, at his shop. With ported 300 heads ...
by frnkeore
Wed Aug 05, 2020 8:15 pm
Forum: Vintage/Classic/Historical Engine Tech
Topic: Rover aluminum V-8??
Replies: 14
Views: 328

Re: Rover aluminum V-8??

I worked on them, when I was a mechanic, in the '60's. I will always remember doing a valve job and having to install 3 head bolt, helicoils, before I was done. One side twice.
by frnkeore
Tue Aug 04, 2020 3:12 am
Forum: Vintage/Classic/Historical Engine Tech
Topic: Evolving the Side valve flat head design idea
Replies: 51
Views: 1041

Re: Evolving the Side valve flat head design idea

I've got a question about the FH Ford engines: Knowing that the flow is blocked to the rear of the valve and that to keep compression up, that you need to have no more than .040, from the top of the valve, to the top of the cyl head, the valve curtain won't have much more than a 180 deg, effective a...
by frnkeore
Mon Aug 03, 2020 5:26 pm
Forum: Engine Tech
Topic: Low and medium lift Flow
Replies: 38
Views: 1633

Re: Low and medium lift Flow

I read that 13 page, "Low Lift Flow and Torque" thread, although much of it was over my head. A question was asked, at about page 5, that wasn't addressed and it apply's to my head. The question was about low lift flow, related to the ex side, only. Most of the 13 page thread, dealt with in flow and...
by frnkeore
Sun Aug 02, 2020 2:25 pm
Forum: Vintage/Classic/Historical Engine Tech
Topic: Ford Flat Head port Flow
Replies: 2
Views: 81

Re: Ford Flat Head port Flow

Thank you, Jack. That's just what I wanted.
by frnkeore
Sun Aug 02, 2020 1:09 pm
Forum: Vintage/Classic/Historical Engine Tech
Topic: Ford Flat Head port Flow
Replies: 2
Views: 81

Ford Flat Head port Flow

Has anyone flowed this engines (the 18 through 8BA) intake and exhaust ports or know of a site that might have that info?
by frnkeore
Sun Aug 02, 2020 12:58 pm
Forum: Engine Tech
Topic: Low and medium lift Flow
Replies: 38
Views: 1633

Low and medium lift Flow

We all see heads advertised and we usually focus their high lift valve flow but, should we be focusing just as much, on the low and mid lift numbers? What does the low and mid lift flow do to the HP curve? What will happen if your head flow peaks at .500 lift and levels off or, even decreases a litt...
by frnkeore
Sat Aug 01, 2020 4:13 am
Forum: Engine Tech
Topic: SBF Oil Pump Spring Spacer
Replies: 7
Views: 356

Re: SBF Oil Pump Spring Spacer

Thank you all. This is a dyno mule, 306 application. ~7400 is the first build, to be upgraded to ~8000, by next year. Bill, my pump is a std volume, does that green spring have a part number? I know that I don't have to have 70+ psi, but, for my own piece of mind, I have to have at least 60 psi. I'd...
by frnkeore
Fri Jul 31, 2020 1:02 pm
Forum: Vintage/Classic/Historical Engine Tech
Topic: Evolving the Side valve flat head design idea
Replies: 51
Views: 1041

Re: Evolving the Side valve flat head design idea

The only way that I can see a flat head type engine breathing, would be in the T configuration, with 4 valve per cylinder. That requires 2 cams for inline engines but 3 cams for a V. But, I don't know how you could developed compression with that design. It might also require dual spark plugs. Besid...
by frnkeore
Thu Jul 30, 2020 5:19 pm
Forum: Engine Tech
Topic: SBF Oil Pump Spring Spacer
Replies: 7
Views: 356

Re: SBF Oil Pump Spring Spacer

No, I didn't mean 75 lb at 2000, The ford spec was just for reference as to what you might expect as a starting point. Yes, I did mean max at 7400/7500. I know that I only need 60 lb and my max was based on the old reference of 10 lb per 1000 rpm. I want to fire it, on the dyno knowing that I will b...
by frnkeore
Thu Jul 30, 2020 4:59 pm
Forum: Vintage/Classic/Historical Engine Tech
Topic: Evolving the Side valve flat head design idea
Replies: 51
Views: 1041

Re: Evolving the Side valve flat head design idea

Thank you for that. It was a great article.
by frnkeore
Thu Jul 30, 2020 1:56 pm
Forum: Vintage/Classic/Historical Engine Tech
Topic: Evolving the Side valve flat head design idea
Replies: 51
Views: 1041

Re: Evolving the Side valve flat head design idea

Great. I had the opportunity to see the OHV version, in '62 or '63, when I was 18 but, I can't remember ever seeing the FH.

It would be interesting to know why the change. I would guess the reason was cost, as the OHV has more power potential. But, sadly, either last very long.