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Search: Posts Made By: NautiSouth
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Forum: Scarab
04-29-2021, 11:41 AM
Replies: 1,341
Views: 489,407
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.
03-17-2021, 04:19 PM
Replies: 26
Views: 5,129
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: 3,052
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: 531
Views: 119,603
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: 531
Views: 119,603
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.
06-18-2020, 03:23 AM
Replies: 163
Views: 42,096
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.
06-16-2020, 05:46 AM
Replies: 163
Views: 42,096
Posted By NautiSouth

I'm a (new) performance marine business owner....

I'm a (new) performance marine business owner. Can OSO show me what value I would be getting with a commercial membership? Some things I'd like to see:
- OSO's forum membership grew by x.x% over...
02-23-2020, 08:16 PM
Replies: 4
Views: 1,452
Posted By NautiSouth

Is there a future in Checkmate for stern drive...

Is there a future in Checkmate for stern drive powerboats? Will Checkmate be relegated to another performance center console company? Time will tell.
Forum: General Q & A
01-29-2020, 02:55 PM
Replies: 531
Views: 119,603
Posted By NautiSouth

There is much more at play than just the force on...

There is much more at play than just the force on the seat, but I'm sure you're aware of that. It sounds like you're well on your way at this point, but my offer still stands. PM me or email at...
Forum: General Q & A
11-18-2019, 06:26 PM
Replies: 531
Views: 119,603
Posted By NautiSouth

120lbs on the seat isn't necessarily bad, if the...

120lbs on the seat isn't necessarily bad, if the valvespring frequency is on point. NASCAR engines of years past ran springs with seated pressures within ten pounds of that. I actually think it's in...
10-30-2019, 11:30 AM
Replies: 0
Views: 583
Posted By NautiSouth

Detroit to S. Florida

I'll be taking a trip in a 3500 Ram truck from SE Michigan to South Florida for Christmas. Leaving approx Dec. 20th.

On the 26th, I'll be going from S. Florida to Atlanta, GA.
On the 30th, I will...
Forum: Scarab
08-21-2019, 05:12 PM
Replies: 1,341
Views: 489,407
Posted By NautiSouth

I need an electric ram for my boat. Being an...

I need an electric ram for my boat. Being an engineer, I was just certain that I could find a ram that would work without paying the big $$ for one from the usual Marine sources.

​What I learned...
08-01-2019, 09:42 AM
Replies: 22
Views: 4,287
Posted By NautiSouth

I actually did get a set of lowers analyzed. They...

I actually did get a set of lowers analyzed. They are a very common material, and the uppers are likely the same. I have not obtained a set of uppers to determine conclusively, however.

Thanks...
Forum: General Q & A
07-11-2019, 02:39 PM
Replies: 71
Views: 26,994
Posted By NautiSouth

I totally agree that a shaft rocker system is the...

I totally agree that a shaft rocker system is the way to go, But someone should quantify just how much better it is versus a stud girdle. Maybe I could perform that FEA one day to see how effective...
Forum: General Q & A
07-11-2019, 10:50 AM
Replies: 71
Views: 26,994
Posted By NautiSouth

Horsepower is a poor metric to use to decide...

Horsepower is a poor metric to use to decide whether or not you need a stud girdle. Valvetrain loads are not a strong function of horsepower. The better metric to use would be RPM, modulated by how...
Forum: Scarab
07-03-2019, 09:41 AM
Replies: 1,341
Views: 489,407
Posted By NautiSouth

My research on the topic led me to decide to use...

My research on the topic led me to decide to use marine ply on the transom, and AB grade exterior radiata pine everywhere else. I figured that the lack of interior voids in marine ply would give...
06-24-2019, 11:11 AM
Replies: 5
Views: 765
Posted By NautiSouth

Hi Jim, Unfortunately my trip is complete....

Hi Jim,

Unfortunately my trip is complete. Without a trailer, I wouldn't have been much help to you anyway.

Good luck on your transportation search!
06-13-2019, 02:34 PM
Replies: 5
Views: 765
Posted By NautiSouth

Bump. Rolling next week.

Bump. Rolling next week.
05-31-2019, 12:15 PM
Replies: 57
Views: 15,851
Posted By NautiSouth

This cracking is the primary downside of...

This cracking is the primary downside of aluminum. Unlike steel, aluminum has no stress below which infinite fatigue life occurs. Whenever an aluminum member is loaded, its lifetime ticks away by...
05-29-2019, 07:39 AM
Replies: 5
Views: 765
Posted By NautiSouth

Bump. Trip is in three weeks.

Bump. Trip is in three weeks.
Forum: General Q & A
05-28-2019, 11:12 AM
Replies: 531
Views: 119,603
Posted By NautiSouth

Water cannot flow so fast that it will not cool a...

Water cannot flow so fast that it will not cool a hot object. That is a myth. What could be happening is insufficient water around the pipe (water only on the bottom due to gravity), or the water...
05-16-2019, 02:30 PM
Replies: 10
Views: 1,956
Posted By NautiSouth

I'm interested in this answer. I expect the...

I'm interested in this answer. I expect the trouble areas to be valvesprings, rocker arms and lifters. I also expect they would not like adjusting lash. Let's see what people say...
05-16-2019, 07:38 AM
Replies: 9
Views: 1,788
Posted By NautiSouth

We're seeing lots of high water on Lake St. Clair...

We're seeing lots of high water on Lake St. Clair this year. Many people in the St Clair Flats (the largest freshwater delta in the world) are experiencing water over their seawalls. I know of two...
05-15-2019, 06:51 AM
Replies: 5
Views: 765
Posted By NautiSouth

Bump. Still planning this trip.

Bump. Still planning this trip.
Forum: General Q & A
05-03-2019, 02:04 PM
Replies: 43
Views: 9,268
Posted By NautiSouth

The short answer to this is "no". If you can run...

The short answer to this is "no". If you can run a smaller ratio rocker, it is better than running a larger ratio one. The reason why comes down to natural frequency.

On the pushrod side of the...
Showing results 1 to 25 of 121
 


 
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