got a gps (navman) and dialed in my speed (it was off) with a unloaded boat...got 39 mph at 4900-5000 rpm (with bimini & tower speakers)...
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This is what I bought, it works great, works to track distance too.
http://cgi.ebay.com/NEW-Timex-Speed-and ... dZViewItem
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Yes the Timex GPS watch tracks speed, distance, max speed, pace, etc. it's a runner's watch so it has most functions that a runner would be wanting. It's really nice to have this easily transferrable gizmo, I will be using it on a bike ride up Mt. Diablo tomorrow (Mt. Diablo Challenge).
The PP is adjustable so yours will be much different than mine. Mine was off about 2mph, now it's pretty close across the spectrum. With the new 4 line display it's easier to read the MPH off the PP versus the speedo so most of my drivers default to the PP as I like.
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I have an '05 211TE w/ ZR6, and it came with the 816. I remember talking to ACME about getting a new prop, and they said that the only concern with the 1234 is the decreased clearance between the prop and the hull due to its large 14 1/2" diameter. They said that it could cause the gelcoat to burn. They said that the 1234 would probably be the best performance wise, but due to the decreased clearance, I should go with the 536 instead. So, I got the 536 and it was much better than the 816. But, I still think there may be room for better performance. Have any of you 1234 users looked at the dispersion tunnel and see if the 1234 is causing any problems?
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Wow. Really? When I talked to them they recommended it as the best option. Haven't seen any problems on the tunnel. I've got a little more than a half inch in clearance. Dealer liked it and didn't say anything about the clearance (other than it's no really close to the prop gaurd on the trailer).
I find it hard to beleive they would make a prop that would damage the hull if used.
Anyone with tech info out there?
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