Search found 244 matches

by Dirtman
Sun Oct 02, 2016 10:17 am
Forum: Prop Talk
Topic: It's Here!
Replies: 8
Views: 2659

Re: It's Here!

Glad to hear you are happy with it Diggin. I know its probably in another post somewhere but what size and blade count did you end up with?
by Dirtman
Fri Sep 16, 2016 11:55 am
Forum: Aircraft Power Only
Topic: 520 continental
Replies: 12
Views: 2558

Re: 520 continental

What type of hull (alum. or glass) What type of bottom (poly, slick bottom or just the gel coat)?. And what condition is that bottom in?
by Dirtman
Fri Sep 09, 2016 4:51 pm
Forum: Airboat Talk
Topic: Need Help 2A Now
Replies: 28
Views: 4736

Re: Need Help 2A Now

Diggin you are to be commended on how you are handling this it seems nowadays too many are all to willing to jump to conclusions and start raving about something they don't have all the info on. Look forward to hearing what they find to be the cause if it is something that can be pinned down
by Dirtman
Wed Sep 07, 2016 10:09 am
Forum: Automotive Power Only
Topic: supercharger
Replies: 6
Views: 2723

Re: supercharger

I would image quite a lot would have to be changed on that engine to bolt on a supercharger and have it live. First the pistons would have to be changed out for something lower in compression then probably a cam change and maybe some head work in order to make it all work. It isn't just a bolt and go.
by Dirtman
Wed Aug 31, 2016 5:34 pm
Forum: Automotive Power Only
Topic: RECYCLE
Replies: 58
Views: 12267

Re: RECYCLE

Swamp been watching this build with much interest, Looks like there are some very nice pieces going into the make-up of the parts list. Just wondering why new more modern forged H beam rods weren't used. Is it the availability or are the Caddy pieces just that tough? Just wondering not second guessi...
by Dirtman
Mon Aug 29, 2016 2:56 pm
Forum: Airboat Talk
Topic: Need Help 2A Now
Replies: 28
Views: 4736

Re: Need Help 2A Now

Count your blessing that that thing didn't fly apart and hurt someone or something. Must be living right
by Dirtman
Sun Aug 28, 2016 8:33 am
Forum: Airboat Talk
Topic: Need Help 2A Now
Replies: 28
Views: 4736

Re: Need Help 2A Now

Diggin, do you have any idea why the plate failed? Do you think it was just fatigue or some other factor? It might be the camera angle but it looks like the end of the through bolt is very near the flywheel, is there a possibility that the end of the starter bendix contacted it when it engaged the s...
by Dirtman
Wed Aug 10, 2016 12:32 pm
Forum: Airboat Tech
Topic: Lifting Engine 2.5-3 inches
Replies: 8
Views: 1882

Re: Lifting Engine 2.5-3 inches

Skinnypockets was right on, many props can be cut down a small amount and there are different hub lengths that can be changed to shorten or lengthen a prop. At 68 inches it might already be in a short hub but its worth a look to see if it is if a deal comes along.
by Dirtman
Sat Aug 06, 2016 9:19 am
Forum: Automotive Power Only
Topic: CM Setup
Replies: 29
Views: 5493

Re: CM Setup

Diggin, there seems to be a consensus that you have too much weight and that it will be hard to get the performance you want without some major changes such as a new gear ratio. Have you given any thought to a new hull to switch your rigging over to? You have at least one gearbox that won't fit your...
by Dirtman
Sun Jun 19, 2016 10:25 am
Forum: Aircraft Power Only
Topic: Lycoming IO580 ....
Replies: 8
Views: 1725

Re: Lycoming IO580 ....

Looks like the IO580 wasn't introduced until around 1997 so probably a little to pricey to put on an airboat and since it only produces about 15 more hp than a standard injected angle valve 540 probably wouldn't be cost effective. JMO :old_glory:
by Dirtman
Fri Jun 17, 2016 6:13 am
Forum: Aircraft Power Only
Topic: Shutdown proceedure for IO520
Replies: 31
Views: 4594

Re: Shutdown proceedure for IO520

If the lean out is adjusted properly to cut off the fuel then pulling the cable for the lean out should cut off the fuel and the engine should shut down on its own and then you shut off the mag switches. That is how mine works anyway. Sounds like the cable for the lean out might not be shutting fuel...
by Dirtman
Sun Jun 12, 2016 10:57 am
Forum: Automotive Power Only
Topic: ISO New Cam for Caddy
Replies: 19
Views: 1723

Re: ISO New Cam for Caddy

You might do a search for Howard's Cams and also Doug Herbert. I know Herbert used to grind his own cams so he might have a core that he could put a profile on for you and Howard's Cams is an older company not sure if they are even in business anymore but worth a try
by Dirtman
Sat Jun 11, 2016 11:07 am
Forum: Automotive Power Only
Topic: GM HEI - Pertronix
Replies: 10
Views: 2429

Re: GM HEI - Pertronix

Swamphunter is there any reason that you did not just go with an MSD ignition control box on this build. I have enjoyed the updates that you have been posting but just wondered if it was just a preference to stay with the older system or maybe the cost with going to a more expensive but seemingly mo...
by Dirtman
Sat Jun 04, 2016 6:03 pm
Forum: Airboat Talk
Topic: AC to car engine what am I doing?
Replies: 70
Views: 5568

Re: AC to car engine what am I doing?

It might be the angle of it but that doesn't even look like it has a gearbox on it. And if it doesn't that would be a real turd
by Dirtman
Mon Apr 25, 2016 10:44 am
Forum: Automotive Power Only
Topic: 1st Air boat - Build ideas - Thoughts?
Replies: 9
Views: 1932

Re: 1st Air boat - Build ideas - Thoughts?

Don't mean to rain on your parade but just don't think the budget you have allotted is going to be able to get the desired result. Nice aluminum hull alone will probably run you around 1800 to 2000 or more depending on how good it is and wether it has poly or not. Motor mods might not be too bad if ...
by Dirtman
Tue Apr 05, 2016 7:24 pm
Forum: Airboat Safety
Topic: Sunglasses 50+ Crowd
Replies: 28
Views: 6927

Re: Sunglasses 50+ Crowd

I have been wearing a pair of Oakley crosshairs for about 3 years now and love them they are plastic lenses but don't seem to get distorted vision out of them and they wrap around quite a ways
by Dirtman
Tue Mar 29, 2016 11:36 am
Forum: Airboat Talk
Topic: Indian and Banana River fish kill ....
Replies: 33
Views: 2721

Re: Indian and Banana River fish kill ....

Amen Whitebear ! A lot of things could be made better if jail time was a result of breaking laws. As was noted above fines don't matter to big business or governments because they all look at it as a cost of doing business and if possible just pass the costs on to the consumers. There are a few othe...
by Dirtman
Wed Mar 16, 2016 10:00 am
Forum: Automotive Power Only
Topic: Just upgraded to a GTO 21' 502ci, having a few engine issues
Replies: 7
Views: 1301

Re: Just upgraded to a GTO 21' 502ci, having a few engine is

when you have the plugs out to check the gap look at the plug and check how the color of the insulator looks. If running lean it could cause your heating problem
by Dirtman
Sat Mar 05, 2016 4:17 pm
Forum: Airboat Talk
Topic: Is the Broward show this weekend
Replies: 7
Views: 965

Is the Broward show this weekend

Just wondering if the Broward County Airboat show is still a go for this weekend. Have not seen anything posted for it this year.Was going down tomorrow if its still going on
by Dirtman
Thu Feb 25, 2016 4:21 pm
Forum: Automotive Power Only
Topic: Odd Problem
Replies: 18
Views: 1948

Re: Odd Problem

Greg are you finding the head of the bolt and also the threaded portion in the boat? Is it always the same bolt on the same cylinder? if its always the same bolt on the same cylinder check and see if the threads are nice and tight not partially stripped or slightly oversized. Could be that the bolt ...
by Dirtman
Tue Feb 16, 2016 5:09 pm
Forum: Automotive Power Only
Topic: Big Trouble Brewing?
Replies: 64
Views: 8042

Re: Big Trouble Brewing?

Diggin. I see they said it is a common problem, but what did they say was likely the cause? sticking relief valve as some had assumed? I know the situation that I had years ago was caused by a different problem( lack of good maintenance) but I had an old pick up that would get pressure high enough t...
by Dirtman
Wed Feb 10, 2016 1:27 pm
Forum: Airboat Talk
Topic: MotionX GPS for your phone
Replies: 20
Views: 4797

Re: MotionX GPS for your phone

does anyone have a app that they are happy with that you can use with an android phone ? this appears to be iphone only
by Dirtman
Sat Feb 06, 2016 12:09 pm
Forum: Aircraft Power Only
Topic: o-480 rpm question
Replies: 2
Views: 450

Re: o-480 rpm question

I believe the 480's will turn more RPM than 3000 but what prop are you wanting to run ? most all the direct drive props say no more than 3000. Yes you can turn the s/c motors harder and get more HP because of added boost pressure at higher RMP's but even at 3600 engine RPM with the gear box you are ...
by Dirtman
Mon Feb 01, 2016 3:28 pm
Forum: Aircraft Power Only
Topic: Ahhhh Damn I Drove A GSO480 Yesterday
Replies: 16
Views: 2408

Re: Ahhhh Damn I Drove A GSO480 Yesterday

Skinnerback thats what everyone keeps telling me is that they are a whole different animal. Can't wait to get my GSO540 going. And Kevin who does these supercharger mods and what are they?
by Dirtman
Thu Jan 28, 2016 10:20 am
Forum: Aircraft Power Only
Topic: 540 Lycoming 300 hp exhaust size 2.5 or 3"?
Replies: 25
Views: 4872

Re: 540 Lycoming 300 hp exhaust size 2.5 or 3"?

Chuck, how did you come to determine the length of the primary tubes to be 32"? Were you the one who built the headers?

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