GPS'd the Boat Tonight
 

I got out tonight for another test ride...
Swapped out my re-calibrated ECU for the stock Volvo one.
She idles right down to 600rpm. Has a bit of a lope so 700-800 would probably be better.
Anyway, installed a new plug for reading and went for a good hard run...:)
She ran strong at all rpm ranges and the test plug looked fine to me. Thought it would test lean but my co-pilot, a mechanic of 25+ years agreed, we were good to go...:)
I guess AZ Speed will need to go back to the drawing board on this one. The calibration they did was way rich.
Then we pulled out the GPS and let her rip...
Calm water, little wind, 1/2 tank, and 2 people, we hit 74mph on the speedo and 68.4mph GPS.:cool:
Engine rev'd about 4650rpm spinning a 3 blade 25p Houston Prop Accelerator.
The acceleration is awesome with the engine mods; the newly labbed prop showed vary strong as-well.
I guess if I want to hit 70, I will have to get out on the salt water solo and with an empty tank...;)

PAT
 

PAT,
SUPERBOAT- ROUGH WATER +FUMES + SOLO=70!
Oh yeah, and TRIM IT TO THE F'n MOON!
P.S. Pat, the 68.4, was that standing or sitting?hehe!

Re: GPS'd the Boat Tonight
 

Got my ECU back from AZ Speed today.
Seems like they got it right this time.
My engine idles at 900 or so once it is warm, shift her into gear and it holds at 750rpm.
Tonight's test was a complete success.
Two people, 1/4 tank, 25p 3 blade, and the engine spinning just shy of 4800rpm, we saw 75-76mph on the speedo and 70.1gps. :)
Hey Bash, We were sitting and ducking behind the wind screen... :D

Noice!!!
 

Solo you"ll be even faster. Break out that camera. Let's see some GPS shots.

Re: GPS'd the Boat Tonight
 

I have to see if there is way for, my gps to hold the max speed like you show in your shot. Tough to hold the camera and drive.
Any ideas? Is there a special mode? My gps is like 6 years old...
I have though of buying a gps speedo, but boating budget is tapped out.

Re: GPS'd the Boat Tonight
 

Pat, I got the Garmin 276C and it has a tattle tail(max speed).
Real nice unit.
and at $650+the chip, its a good deal compared to a GPS speedo @ $400+.

Gp$
 

PAT
My E-TREX WAS $99. The GECKO is the newer version for slightly more. SPEED & MAX SPEED was my only concern.

Re: GPS'd the Boat Tonight
 

Since this thread is speaking about speed I thought I would seek your advice. I finally got my boat back and she is running like a charm. The only nit picky thing I have is that the speedometer worked for the first few minutes and now it will climb slowly to near 50 and then it won't move from there. When I slow down it moves down very slowly. Any thoughts?

Speedo
 

JMK
First step (& easiest). Take the rubber hose off the back of the speedo & blow. Something may be stuck in the line.

Re: GPS'd the Boat Tonight
 

You hit a stick and there is a piece of wood stuck in the pickup.
Happens to me every Spring when there is so much crap floating from high water.
With your drive trimmed all the way up, look for a black plastic tube leading into your drive at the front of the cavitation plate. This tube brings water pressure to your speedo at the dash. There is a yellow barbed fitting that connects the tube to the drive. Rotate and pull up to remove it. If there is still pressure, you will get splashed in the face. Then run your hand down the front of the drive looking for a small hole about 2" above the level of the prop shaft. That small hole is the pickup. There is likely a piece of wood in it. I use a drill on low speed to get the wood out. Then blow through the hole to make sure it's clear. Reconnect the tube and your good to go.
JMK, we need to invest in gps speedos. Don't know about yours but my Merc. speedo is like 5-6mph off above 60 and this pito tube thing is a PIA... :(

Re: GPS'd the Boat Tonight
 

You were right on--the hole was clogged with a piece of wood

Re: GPS'd the Boat Tonight
 

I don't use the pickup in my drive. I have a gaffrig pitot tube on my transom. When the tube is new, the speedo reads +5. It always gets bent somehow and then reads right on. Then it bends more and reads low. It is a PIA. I am not replacing the tubes anymore. They don't even last a season. I need to get a GPS speedo too.

Dave M.

Re: GPS'd the Boat Tonight
 

gps only way to go, i have one on the driver side and one on the throttle side

Re: GPS'd the Boat Tonight
 

A beutiful ride on LI Sound last night! :D
Got to try my 26p 4 blade. Houston prop did a great job working it; only 1mph slower than the 3 blade...
2 guys, 3/4 tank, 10mph wind, 2ft chop...
67mph into the wind, 69mph with the wind.
Coming back up river, and trimmed to the f'n moon as Bash would say, we hit the 4800rpm rev limiter at 69.2mph... :)

Re: GPS'd the Boat Tonight
 

Nice Pat,
You got her runnin' consistent and with a load. We gotta run one day. I don't have a problem putting mine in one weekday afternoon(4-5-6pm) somewhere on LI northshore and burn some gas for a little run with you(& some pics naturally). Anyone know a ramp that is accessible for me to do this? I never boated on the N.S. but like I said I wouldn't mind burning some gas one day during the week. 24vs24 Steppvs.Nonstepp I/O vs. O/B? Who will prevail? The Basher (Gene)

Re: GPS'd the Boat Tonight
 

Hey superbash,just tow up to the ramp in Kings park,commack rd to jericho,north on Indian head road to Old dock rd,to ramp,meet pat,have fun, and tell us about it!!! Tripps

Re: GPS'd the Boat Tonight
 

tripps & superbash,
I do hope to meet up with you at some point this summer!
I think from were tripps is suggesting we would still be 60-70mile apart though.
I'll make a deal with you Babylon boys. You show up at the Fountain run to Claudio's and I will trailer my boat to the Island for a run with you fellows.
Is that fare?

Re: GPS'd the Boat Tonight
 

Once Mine Goes In The Water I'm Not Getting Off.when Is Tripps Planning Claudio's?i'm Going To Gps The Zuperboat Sat On The Trailer To Put The Motor In.thats Going To My Excitement.

Re: GPS'd the Boat Tonight
 

ZZ,
Saturday July 10th.
Check out nolimits invite thread.
http://server2.offshoreonly.com/foru...ad.php?t=80027