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Search found 1917 matches

by rustbucket79
Sun Sep 12, 2021 4:04 pm
Forum: Engine Tech
Topic: How much HP can this head support?
Replies: 24
Views: 1472

Re: How much HP can this head support?

550 to 600 honest hp
by rustbucket79
Sun Sep 12, 2021 4:02 pm
Forum: Engine Tech
Topic: Electric fuel pump selection
Replies: 6
Views: 276

Re: Electric fuel pump selection

Black should be up to the task, everything else in the fuel system up to the task? (No hard 90’s, 5/16” hose, restrictive fuel filter)
by rustbucket79
Sat Sep 11, 2021 8:36 pm
Forum: Engine Tech
Topic: Need advice on valve springs for my BBC cam...
Replies: 8
Views: 335

Re: Need advice on valve springs for my BBC cam...

What’s your installed height? Can’t pick a spring without that.
by rustbucket79
Fri Sep 03, 2021 10:01 pm
Forum: Engine Tech
Topic: Oil Drainback/Windage Issues
Replies: 34
Views: 2177

Re: Oil Drainback/Windage Issues

Kevin, when I used to travel, I had pad heaters on the oil pan, as well as the differential and transmission pan. These days, local track is pretty sparse in attendance so I give it a hard squirt up the return road and back and call it good. First and second qualifiers usually line up pretty close s...
by rustbucket79
Fri Sep 03, 2021 9:54 pm
Forum: Engine Tech
Topic: Using Dyno CFM reading for carb sizing
Replies: 24
Views: 1465

Re: Using Dyno CFM reading for carb sizing

Wasted move with the 650. Try tuning the secondary air door on your 800, that could improve response.
by rustbucket79
Thu Sep 02, 2021 11:18 pm
Forum: Engine Tech
Topic: maxwedge heads
Replies: 7
Views: 740

Re: maxwedge heads

That’s a reasonably rare head you might struggle finding someone here that’s actually experimented with them and is willing to share. If the heads are already done, the seats are cut, so recutting the seats to a different angle further sinks the valves, presumably ruining what you hope to gain. Sunk...
by rustbucket79
Thu Sep 02, 2021 11:05 pm
Forum: Engine Tech
Topic: Oil Drainback/Windage Issues
Replies: 34
Views: 2177

Re: Oil Drainback/Windage Issues

What was the pump screen to pan floor clearance number? Accumulator isn’t necessary and as the pressure falls it fills up the pan, creating a windage issue. I’ve run both the wide sump Moroso pan and the narrow sump power pan from Milodon 31167. Used both the M55 and M55HV with the Z 28 spring. Both...
by rustbucket79
Thu Sep 02, 2021 10:39 pm
Forum: Engine Tech
Topic: Using Dyno CFM reading for carb sizing
Replies: 24
Views: 1465

Re: Using Dyno CFM reading for carb sizing

No mention of what carb used nor final application. Measured plenum vacuum is valid too. 430 hp is a decent street engine 750 CFM is a reasonable default for 383 cu in, vacuum secondary for mild or heavy vehicles, mechanical secondary for street/strip or more performance oriented. Vacuum secondary d...
by rustbucket79
Mon Aug 30, 2021 2:18 pm
Forum: Engine Tech
Topic: Blow thru vs Holley EFI
Replies: 9
Views: 524

Re: Blow thru vs Holley EFI

Future plans have me putting a turbo set up on a 383 I have. With they help of y’all and about 3 books I’ve become fairly good at tuning a carburetor. Actually got a other book on the way. I’ve just found a great deal on a Holley EFI set up. Used but in good working condition. Whole kit plus the hy...
by rustbucket79
Tue Aug 24, 2021 11:05 pm
Forum: Engine Tech
Topic: Crankshaft?
Replies: 8
Views: 762

Re: Crankshaft?

I’ve seen a handful of 2 piece Scat cast replacement and 9000 series cranks that were in dirt track applications. (Broken)

I would have a factory cast crank in that application if budget restricted, if you’re planning multiple seasons I feel a budget forged steel crank is a worthy investment.
by rustbucket79
Tue Aug 17, 2021 9:41 pm
Forum: Engine Tech
Topic: Ball Hone New Bronze Guides
Replies: 22
Views: 1140

Re: Ball Hone New Bronze Guides

Your question specifically asked about the importance of honing a finish into guides, I was quite clear that the correct clearance was important. Millions of engines running in the world with a machined finish on their guides, if it was important they would all have a honed finish. FWIW ball hone t...
by rustbucket79
Mon Aug 16, 2021 10:39 pm
Forum: Engine Tech
Topic: Ball Hone New Bronze Guides
Replies: 22
Views: 1140

Re: Ball Hone New Bronze Guides

Your question specifically asked about the importance of honing a finish into guides, I was quite clear that the correct clearance was important. Millions of engines running in the world with a machined finish on their guides, if it was important they would all have a honed finish. FWIW ball hone th...
by rustbucket79
Mon Aug 16, 2021 10:17 pm
Forum: Engine Tech
Topic: Edelbrock/Carter Carbs On Dyno ??!!
Replies: 45
Views: 1587

Re: Edelbrock/Carter Carbs On Dyno ??!!

I’ve ran dozens of Edelbrock AFB’s and AVS’s on the dyno, always as supplied from the manufacturer other than jetting. I’ve rejected the odd one due to corrosion issues due to salt water operation or full of crap, but never have I tried one without the air door. I see no reason to eliminate it, and ...
by rustbucket79
Sun Aug 15, 2021 8:01 pm
Forum: Engine Tech
Topic: Rod bearing failure (again)
Replies: 30
Views: 3052

Re: Rod bearing failure (again)

Timing yes but also oil supply as you’re winging it up to 8000 is the major issue. What’s your engine and oil system mods on this engine? The decent rods are why it doesn’t look way worse than it does. I believe one hit on the dyno would have you scratching your head why you’re turning this engine 1...
by rustbucket79
Sun Aug 15, 2021 7:49 pm
Forum: Engine Tech
Topic: If you’re familiar with portable rigid hones (ie. Sunnen AN or Lisle15000) I could use some help please.
Replies: 17
Views: 747

Re: If you’re familiar with portable rigid hones (ie. Sunnen AN or Lisle15000) I could use some help please.

An out of round bore is going to chatter the hone, but at that point I would look very closely for a split wall. Out of round just isn’t common.

That hone is garbage, and will produce a garbage finished product. (The one you own, not necessarily that brand)