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Search: Posts Made By: tomcat
Showing results 26 to 50 of 500
Search took 0.04 seconds; generated 64 minute(s) ago.
Forum: General Boating Discussion
12-16-2019, 03:25 PM
Replies: 11
Views: 4,666
Posted By tomcat

Naturally aspirated marine engine weighs 1200 lbs...

Naturally aspirated marine engine weighs 1200 lbs with headers and closed cooling.

Videos on Facebook and YouTube:

https://www.facebook.com/xvipower/
...
Forum: General Boating Discussion
06-26-2019, 09:15 PM
Replies: 2
Views: 1,988
Posted By tomcat

https://cimg0.ibsrv.net/gimg/www.offshoreonly.com-...

https://cimg0.ibsrv.net/gimg/www.offshoreonly.com-vbulletin/1125x1280/texas_1_aa5ae7229bd3601e7d79752299a7bc3a44e6e987.jpg
Forum: General Q & A
05-15-2019, 10:36 AM
Replies: 16
Views: 2,472
Posted By tomcat

Hi Smitty, I don't post much anymore but I like...

Hi Smitty, I don't post much anymore but I like to check the Tech section to see what you're up to! Out of curiosity, how much difference does the playdoh make when you flow the throttle body?
Forum: General Q & A
05-10-2019, 05:46 PM
Replies: 17
Views: 7,232
Posted By tomcat

These guys make good thermostats that flow up to...

These guys make good thermostats that flow up to 20 gpm, and you can get them with -12 AN fittings. They have sandwich type adapters too but no flow rating on...
Forum: General Boating Discussion
04-16-2019, 09:27 AM
Replies: 30
Views: 5,382
Posted By tomcat

Yes, the Aston Martin is NA. Design team led by a...

Yes, the Aston Martin is NA. Design team led by a Formula 1 engineer, so that's where the tech is coming from. Ten years ago Formula 1 used a 2.4L NA V8 that made 750 HP @ 18,000 RPM. That's about 5...
Forum: General Boating Discussion
04-15-2019, 11:35 AM
Replies: 30
Views: 5,382
Posted By tomcat

How about Aston Martin's new Valkyrie V12? Makes...

How about Aston Martin's new Valkyrie V12? Makes 1000 HP from 6.5L @ 11,000 RPM - 2.52 HP per cu in.

https://www.youtube.com/watch?v=o-URmHqQcZk
Forum: General Boating Discussion
03-20-2019, 05:37 PM
Replies: 15
Views: 5,298
Posted By tomcat

https://cimg8.ibsrv.net/gimg/www.offshoreonly.com-...

https://cimg8.ibsrv.net/gimg/www.offshoreonly.com-vbulletin/800x532/targeted_advertising_9a6b07faf0bd6cef0ef02440036b896311de777f.jpg
There's a good picture of WHM on Boyd's website. That's what I...
Forum: General Boating Discussion
03-05-2019, 11:32 AM
Replies: 33
Views: 20,473
Posted By tomcat

https://www.vandamboats.com/exotic-wood-speed-boat...

https://www.vandamboats.com/exotic-wood-speed-boat/

Check out this beautiful bustle...
Forum: General Boating Discussion
12-07-2018, 11:12 AM
Replies: 18
Views: 3,572
Posted By tomcat

FPC - Excellent job matching the video to the...

FPC - Excellent job matching the video to the soundtrack!
Forum: General Boating Discussion
03-10-2018, 11:33 AM
Replies: 32
Views: 5,962
Posted By tomcat

What Jim said... I can't blame the team...

What Jim said...

I can't blame the team owners for wanting to get off the blown engine merry go round, but why is this being proposed as Mercury only? I can imagine someone like Billy Mauff moving...
Forum: General Boating Discussion
02-28-2018, 08:27 AM
Replies: 31
Views: 5,622
Posted By tomcat

What phragle said... As a decent first...

What phragle said...

As a decent first approximation (for bench racing purposes only), HP required goes up as the square of the desired speed increase. Following this equation, if the Outerlimits...
Forum: General Boating Discussion
11-17-2016, 07:44 PM
Replies: 27
Views: 3,846
Posted By tomcat

It already was a drag race. Just as an example,...

It already was a drag race. Just as an example, boats capable of 170 mph (with their highest pitch and lots of room) were lucky to hit 150 at LOTO and a prop change was required. The shorter course...
Forum: General Boating Discussion
11-01-2016, 04:05 PM
Replies: 55
Views: 51,607
Posted By tomcat

The HP gap may be market driven. It makes sense...

The HP gap may be market driven. It makes sense in a world where the 48 MTI outsells the 36 MTI by a ratio of 10 to 1. (That's just my impression, not privy to MTI sales figures)
Forum: General Boating Discussion
10-24-2016, 07:03 PM
Replies: 212
Views: 56,994
Posted By tomcat

Here is an interesting control used in a somewhat...

Here is an interesting control used in a somewhat similar situation; anti wheelie control. In the 20 second video you can see the system reacting three times to drop the nose of the bike. When fuel,...
Forum: General Boating Discussion
08-31-2016, 09:32 AM
Replies: 83
Views: 23,300
Posted By tomcat

Amazing accomplishment!!! Your intercooler seems...

Amazing accomplishment!!! Your intercooler seems to work...:champs:

Tom
Forum: General Boating Discussion
08-28-2016, 08:51 AM
Replies: 71
Views: 19,280
Posted By tomcat

The Tuff 28 does exactly what it was designed to...

The Tuff 28 does exactly what it was designed to do and does it well. Your comment could apply to a lot of boats at the shootout and misses the point.
Forum: General Q & A
07-27-2016, 03:39 PM
Replies: 133
Views: 35,216
Posted By tomcat

True that. Bring in 3633 CFM and the intake air...

True that. Bring in 3633 CFM and the intake air temp will be ~ 110F in that example. Cold air intakes make sense and are common on supercat lites where the big 12" air duct entering the engine...
Forum: General Q & A
07-25-2016, 05:20 PM
Replies: 133
Views: 35,216
Posted By tomcat

The amount of air flow you need to remove heat...

The amount of air flow you need to remove heat given off by the engine is much higher than the amount of air needed for combustion. You can get a feel for this by looking at performance data from...
Forum: General Q & A
05-11-2016, 10:45 AM
Replies: 5
Views: 867
Posted By tomcat

Not saying they have what you want but these guys...

Not saying they have what you want but these guys are good.

http://www.totallystainless.com/
Forum: General Boating Discussion
05-10-2016, 10:43 AM
Replies: 141
Views: 80,323
Posted By tomcat

Re: the picture - what failed first? Did the...

Re: the picture - what failed first? Did the U-joint fail and take out the case or vice versa?
Forum: General Q & A
04-24-2016, 09:16 PM
Replies: 16
Views: 8,188
Posted By tomcat

Why does this engine have solid cam followers...

Why does this engine have solid cam followers that need lash checked? Don't most modern 4 valve engines have hydraulic valve lash adjusters which require no maintenance?
Forum: General Q & A
03-02-2016, 03:52 PM
Replies: 0
Views: 617
Posted By tomcat

Higher octane fuel in our future?

As vehicle engines are downsized to meet fuel economy targets, researchers at MIT are suggesting that higher compression ratios and an increase in octane from RON 91 to RON 98 are part of the answer....
Forum: General Boating Discussion
12-03-2015, 02:52 PM
Replies: 3
Views: 2,075
Posted By tomcat

I've never tried to put rumors into formulas...

I've never tried to put rumors into formulas :lolhit: but I'll assume that it really is 32 psi boost.

Start with a perfectly good 200 HP NA engine. Now reduce it's compression ratio. Next, add the...
Forum: General Boating Discussion
11-19-2015, 11:35 AM
Replies: 21
Views: 2,861
Posted By tomcat

If you want to appreciate the subtle differences...

If you want to appreciate the subtle differences between Americans and Canadians consider this analogy...Americans think they are Superman; Canadians think they are Clark Kent. And that anthem...
Forum: General Boating Discussion
08-12-2015, 07:40 PM
Replies: 4
Views: 1,034
Posted By tomcat

Good luck guys! A cube function...haha. I guess...

Good luck guys! A cube function...haha. I guess that's what people really mean when they say cubic dollars.
Showing results 26 to 50 of 500
 
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