Move the jackplate up 1/4" and dont improove. 1/2" and run the same. Try a new Tempest Plus 29 and incredible run less 75.9mph at almost the same rpms in the same height I run 77 with the 27. The new...
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Move the jackplate up 1/4" and dont improove. 1/2" and run the same. Try a new Tempest Plus 29 and incredible run less 75.9mph at almost the same rpms in the same height I run 77 with the 27. The new...
Have time for only one run last weekend and raise the jackplate 1/4". The speed remain the same 76.6 mph. I will try another 1/4 maybe next week.
Try to manipulate the photos I have
I will be in the boat in two weeks. You know, need to work for pay this hobby :boat:.
I run today with 1/4 of gas at a higher trim than the last run (see pics). Run 77.7 @5750 rpms (overspeed alarm sound) Have a slip of .083% and run the other way 76.2. , Your coment sound logical...
Buizilla, The measure is 6 7/8". Greg , I really dont know for what is the transom wedges, it is for help the trim angle. I can go down and up trim I needed. I really dont want to move the engine...
Yep, That is the photo. The Jackplate is manual 4" setback. The lower unit is a stock one that came with the engine with the four holes. I dont use a nosecone and have 15 psi of water. I run maybe an...
5750 is in the tag. When the tach reach that rpm the alarm sound. This engine have a lot of torque. I run 50 mph and hit the gas and be over 70 in no time, also if is a passenger with me. The trim...
I test a Mazco RE3 30 in several positions and run less. The best run was 75.2 @ 5600 with the tempest plus 27 with the prop almost full into the water. Now I will make some simple mods to the...
http://www.youtube.com/watch?v=MSKksEHMDag
Is a Tempest Plus. I have the workshop manual and say 5750 max rpm. Dont remember the #s on tag. I move the engine up to the last bolt and the boat lost the bow lift and start to propwalk and slip a...
My first video http://www.youtube.com/watch?v=MSKksEHMDag
Greg Guimond run 81 mph in a Baby 16. That give me hope to reach the 80 mph mark.
I made the calculation and you have a slip of 16.5%. I write in my post the numbers I run last time with best of 74.4 mph @ 5400 rpm with a Tempest Plus 27 and have a slip of 6.2% .
If this is...
Impressive run Greg. Do you know what reduction you have in the gearcase? Just want to calculate the slip.
I never have a hull that whistling but one time I have a car that do it after a year of buy new.. Was a new Civic back in 1996. The dealer never find the problem. Five years later the front...
Greg, back to the Donzi setup. I ran the 27 tempest in the same engine height.
First run 72.6 mph, Second 73.9. Third 74.1, Fourth 74.4, and final 74.2
The fourth and final runs was on...
The answer for a best fuel economy is Hull Speed. When I decide to tow the Bertram 33 I read all the info I can get about this term. I found this site to calculate HS...
Last year I blow an engine and decide to repower both. Have the shortblocks ready installed. Have to install the shortblocks alone because dont have the crane to install a full engine. I buy a...
Few more pics. First in front of El Conquistador Hotel at Fajardo last the back up boat in front of Cabo Rojo lighthouse.:cool::shades:
I dont calculate the Fuel comsumption .my best remember 10 to 12 gph
I am in the proces of repower. The Bertram was on a marina at Fajardo Far Northeast point of PR. I pay $550.00 monthly. Rigth now is out off the water at Cabo Rojo with zero payment.
I verify with other 225 of the same year and with the shop manual and these holes are original for the engine. I was busy towing my Bertram 33 for 137 nautical miles with the Donzi. Take me 21 hours...
Yes 4 holes
I remember you ask before about the lower unit Greg. I dont know how to identify it. I go to take some pictures today of different angles of the unit and post it, it can help. Do you know the part...