Offshoreonly.com - Search Results
Offshoreonly.com

Go Back  Offshoreonly.com > Search Forums
Reload this Page >

Search Results

Register
FAQ
Calendar
Today's Posts
Search
Vendor Directory
Notices
 
Page 1 of 6
1
2
3
Last »
Search: Posts Made By: NautiSouth
Showing results 1 to 25 of 140
Search took 0.01 seconds.
Forum: General Boating Discussion
08-07-2024, 10:48 AM
Replies: 13
Views: 1,773
Posted By NautiSouth

I think you're absolutely right. The promoters...

I think you're absolutely right. The promoters did an impeccable job in every area except for one: filling the fields. It's a tough job for sure, but a necessary one if a race event is to grow. A...
Forum: General Boating Discussion
08-06-2024, 07:48 PM
Replies: 13
Views: 1,773
Posted By NautiSouth

To me, it seems the bigger story is the amount of...

To me, it seems the bigger story is the amount of holdout racers. I attended for my first time, and I was surprised at how many Supercat and Extreme teams decided to sit this race out. Is there a...
Forum: Scarab
08-02-2024, 12:27 PM
Replies: 1,771
Views: 877,574
Posted By NautiSouth

This is common in volume production. Exhaust...

This is common in volume production. Exhaust valves are two materials friction welded together, the tip being induction hardened to carry contact stress from the rocker. It saves you from having to...
Forum: General Q & A
07-19-2024, 03:01 PM
Replies: 32
Views: 9,583
Posted By NautiSouth

That's a solid choice! My personal favorite is...

That's a solid choice! My personal favorite is 0w40 Mobil 1 because that historically has used Group IV base stock (PAO). It's been harder to find is 5qt jugs lately, however.
Forum: Scarab
07-19-2024, 01:29 PM
Replies: 1,771
Views: 877,574
Posted By NautiSouth

Any valves can tulip and burn, no matter the...

Any valves can tulip and burn, no matter the temperature.

What Inconel buys an engine valve is hot fatigue strength - this wasn't a fatigue failure. These valves look to have yielded and lost...
Forum: General Q & A
07-18-2024, 03:38 PM
Replies: 32
Views: 9,583
Posted By NautiSouth

I find this chart to be particularly helpful: ...

I find this chart to be particularly helpful:

https://drivenracingoil.com/c-1389539-shop-by-viscosity.html
Forum: Do It Yourself, Boating on a Budget
04-18-2024, 06:45 PM
Replies: 13
Views: 3,023
Posted By NautiSouth

You're welcome to use the spring calculator. If...

You're welcome to use the spring calculator. If you'd like a professional opinion, I'm happy to look over your specific situation. Click the link below to schedule time with me.

Custom...
Forum: Do It Yourself, Boating on a Budget
04-13-2024, 02:36 PM
Replies: 13
Views: 3,023
Posted By NautiSouth

You're welcome! It took a long time to learn and...

You're welcome! It took a long time to learn and code that calculator!
Forum: General Q & A
03-15-2024, 05:34 AM
Replies: 18
Views: 2,335
Posted By NautiSouth

I've focused my attention the last couple months...

I've focused my attention the last couple months on making cam, valvetrain and valvespring selection easier.

allmondmarine.com/cams/ (https://allmondmarine.com/cams/)

The chart on this page is...
Forum: Do It Yourself, Boating on a Budget
03-02-2024, 10:13 PM
Replies: 13
Views: 3,023
Posted By NautiSouth

There's a calculator on this page that might...

There's a calculator on this page that might help:

http://allmondmarine.com/valvetrain-engineering-services/ (https://allmondmarine.com/valvetrain-engineering-services/)
Forum: General Q & A
03-02-2024, 11:56 AM
Replies: 175
Views: 29,195
Posted By NautiSouth

I'm referring to the lifter bore angles on the...

I'm referring to the lifter bore angles on the small blocks specifically. Going back to the "A" engine, made to complement the Plymouth Polyspherical head, the lifter bore angle was 57° from...
Forum: General Q & A
03-01-2024, 11:17 PM
Replies: 7
Views: 2,308
Posted By NautiSouth

Ignition is a digital system: it's either working...

Ignition is a digital system: it's either working for that cycle or it isn't. Once the fire is lit, it's lit. No amount of extra sparks is going to help a fire that's already burning.

Problems...
Forum: General Q & A
03-01-2024, 07:39 PM
Replies: 175
Views: 29,195
Posted By NautiSouth

In my opinion, the BBC valvetrain geometry is...

In my opinion, the BBC valvetrain geometry is decent - only a 4° cant angle, the exhaust lifter bores are angled 6.25° from the intakes to account for the different valve angles. Not too bad.
...
Forum: General Q & A
02-29-2024, 12:37 PM
Replies: 32
Views: 9,583
Posted By NautiSouth

If you'd like a ballpark idea of what the spring...

If you'd like a ballpark idea of what the spring requirements are, use the calculator halfway down this page:

Valvetrain Engineering Services - Allmond Marine...
Forum: Do It Yourself, Boating on a Budget
02-29-2024, 12:33 PM
Replies: 8
Views: 7,398
Posted By NautiSouth

If you'd like a ballpark idea of what the spring...

If you'd like a ballpark idea of what the spring requirements are, use the calculator halfway down this page:

Valvetrain Engineering Services - Allmond Marine...
Forum: General Q & A
02-02-2024, 09:29 AM
Replies: 31
Views: 12,300
Posted By NautiSouth

Said measurement data needs to be matched with...

Said measurement data needs to be matched with proper cam design software by a skilled engineer before it can be used to grind a cam in a CNC grinder. Even the best measurement data contains...
Forum: General Q & A
02-02-2024, 07:39 AM
Replies: 31
Views: 12,300
Posted By NautiSouth

What constitutes a "copy" of a profile could be...

What constitutes a "copy" of a profile could be debated. Profiles can match duration at two lifts and max lift, yet not be a copy. Maybe that's too much "Inside Baseball", but I wanted to point that...
Forum: General Boating Discussion
08-15-2023, 09:47 AM
Replies: 19
Views: 3,539
Posted By NautiSouth

I've unfortunately known multiple people who have...

I've unfortunately known multiple people who have had boat explosions, One of my friends lost his wife in such an accident.

Here's my protocol, feel free to critique me:

The blower is on on...
Forum: General Boating Discussion
02-07-2023, 07:26 PM
Replies: 15
Views: 7,852
Posted By NautiSouth

No, there are several people working on these,...

No, there are several people working on these, even if Mercury doesn't like that they are. Kaase and Boostpower are a couple I know of.
Forum: Scarab
04-29-2021, 11:41 AM
Replies: 1,771
Views: 877,574
Posted By NautiSouth

I thought the same thing! I was thinking, "holy...

I thought the same thing! I was thinking, "holy crap, this cat is putting filler around the welds on his trailer! Who does that?"

Great job hitting the details, man.
Forum: Mid Atlantic US
03-17-2021, 04:19 PM
Replies: 26
Views: 10,499
Posted By NautiSouth

I've got to say... I'm surprised to have seen...

I've got to say... I'm surprised to have seen this little excitement for an event that is offering to pay $25k for a world record run.
Forum: General Q & A
02-23-2021, 10:11 PM
Replies: 22
Views: 6,572
Posted By NautiSouth

This is an old thread, I know. There are few...

This is an old thread, I know. There are few Spintron experts around. If anyone is interested in doing any Spintron testing, I can help arrange that.
Forum: General Q & A
06-20-2020, 10:06 PM
Replies: 537
Views: 194,796
Posted By NautiSouth

Rich mixtures can help keep exhaust valves...

Rich mixtures can help keep exhaust valves cooler. I talk about this on allmondmarine.com/blog in the series on valves. Might be worth a read.
Forum: General Q & A
06-20-2020, 06:21 PM
Replies: 537
Views: 194,796
Posted By NautiSouth

AFRs look a lil fat. Maybe you're leaner off WOT.

AFRs look a lil fat. Maybe you're leaner off WOT.
Forum: General Boating Discussion
06-18-2020, 03:23 AM
Replies: 163
Views: 59,740
Posted By NautiSouth

I'm not feeling great that no admins from the...

I'm not feeling great that no admins from the forum have reached out to me on this. Makes me feel like they don't care about potential customers.
Showing results 1 to 25 of 140
 
Page 1 of 6
1
2
3
Last »


 
Forum Jump

Contact Us - Archive - Advertising - Cookie Policy - Privacy Statement - Terms of Service

Copyright © 2026 MH Sub I, LLC dba Internet Brands. All rights reserved. Use of this site indicates your consent to the Terms of Use.