Thanks guys. This info helps out a lot.
Raypanic, I appreciate you going the extra mile with your detailed instructions, links and pics. It must be a Powerquest owner thing!!!!!!

Padraig,
I agree with your statement. I have a Garmin GPS already mounted in my boat. The only reason I would want a GPS speedo is to advoid having the plugging problems with the standard speedometer. Down here in South Louisiana, we are not known for having the cleanest waterways. Lots of duck weed and such is always giving us problems plugging up the pickups for standard speedometers. Since owning this boat, my speedometer has been plugged more than working.
I guess that is the price you have to pay to live in Paradise!

01.Original pkup was in the ft. I went with the IMCO Extreme SC and it does have a speedo hookup(2" shortie).
02.Since I didn't have holes in the transom for a pkup.
03.Since I did have a hole&stock speedo in the dash that didn't work.
04.All of my gauges have the HTM logo on them so a anolog still would not match perfectly to my gauges.
05.Nord. digital GPS is what I went with. I like the looks of the digital. You have an exact speed reading down to the nearest tenth.
06.U can find the perfect trim setting of any speed with the digital one. Not so easy if not impossible w/analog.
07.Digital reads from about 3 to 200mph. If you get a high end analog then you don't have the low end readings. EX:Like from 25 mph or 30 on up.
08.Digital will read (one at a time) mph, knots(big deal),compass, rpm,&volts.
09.Run out of room on that dash, know where to put your boost gauge for your new blower motor. No problem,sh*t can the stock volt meter and put the boost gauge in it's place.

Mike, I think you misunderstood my question. It wasn't analog vs digital, it was why have a GPS speedometer at all. For the same price as a GPS speedo you could have a good GPS with its own large number digital read out and more features. You could have kept the voltmeter and **** canned the speedometer and put a boost guage in its place.

just thought I would give some of the good with a stock looking speedo and not a dash mount.
One hell of a boost gauge in the speedo hole
My wish would have been to do away with the tach and speed and put in a decent size GPS

Good looking dash!

I know what you mean about wishing you had room to mount a good size GPS. I mounted my 182 using a RAM Mount. Mounted off to the right side, it looks ok but flush mount would of looked better.

here is a link to a recent gps/speedo thread

http://www.offshoreonly.com/forum/sh...ghlight=garmin

My Speedo never worked right! It was about 10 mph slow. I removed the pitot tube and assembly filled the holes and don't half to worry about it. My dash is the same as Ray's I mounted the antenna under the dash and it WORKS great
I also bought a matching rocker switch to replace one on my dash that I no longer needed (looks clean). Thats why I decided to use a GPS speedo.
Scott

My speedo reads about 3-5 mph higher than GPS. So, I am keeping it! I have my GPS in my corner of the boat to read. My speedo is out in the open for all the passengers to read while we are doing 80+ mph (according to the speedo) I'm the only one that needs to see "real" speeds!

Reason's I switched to GPS speedo.
1) My pitot tube was bent severely and the only "good" one I know of costs over $200 It will last but the tube still gets plugged.
2) I have my gps mounted on a RAM mount, but I want to use it as a GPS, not a speedometer. You cannot do both and drive the boat.

All my gauges must be easy to read and easy to find. All I want to have to do is glance at the gages and know what they are supposed to be reading. The less I have to look at the gauges, the more I can pay attention to the important things, like the water in front of me.