trs has a standard dia prop ,so 14 1/2 is correct the 2tr had the bigger diameter.
the diameters vary with the pitch,from 14 1/2 to 14 5/8.
bigger cams arnt less reliable ,dont know where you read that ,but they will use more fuel
A terrible terrible thing happen today i was scraping the antifoul off the bottom of the boat creating quite a pile. The stuff was everywhere so i got the vacuum and vacuumed the driveway!!!! i felt so tainted i got changed drove into whitworths and spent $700 bucks on stainless steel boat bits whilst scratching my crouch and went home and had a beer or 3 to forget the vacuum incident ever occurred.
They are a different class of boat, providing a very solid, sure-footed stability both laterally and fore and aft when underway, similar to what you would expect of a bigger offshore passage-maker.
They run like the much revered semi-displacement boats, deep and low, ploughing through, rather than bouncing over the top of waves.
yes semi displacement,and ploughing through is an accurate description.i guess its different boats for different folks,the 233 leaves the 28 for dead in offshore conditions.
Can you guys recommend the best prop for a stock 454 like whirlybirds
really depends on the boat but the mirage plus props ,have given me good results ,and of cause a pitch that will allow you to reach max rpm.
Hey simon656 have you got any pics of your boat?
Just spoke to the guy who did the repower mentioned above, in the interest of getting some more info.
Apparently his client bought a carbed, 5.7 lt. long motor from Eagle Auto's in Melb. and selected the 290 HP version instead of the standard 260 HP.
The 290's max. rev range (to get the extra HP) was between 5100 - 5300 rpm, where the standard 260 was between 4400 - 4600 rpm.
The new motor ran fine at idle on the muffs, but wouldn't once in the water with the extra back-pressure. This is when they were advised to install the original Merc. cam.
He went on descibing the Merc. cam as helping deliver the max. torque early and something about different load pressures compared to running the same engine on the road with loads on and off allowing for flats and down hills, where as in a boat the load has a reasonably constant pressure against the prop.
Hey marto , will try to post some soon
Hey guys how do you post photos on these forums, not to tech savvy
Hi Guys its been a lot of scraping between posts and some rain has slowed me down but there are the results minus the small strip of antifoul under the bottom and under the rollers.
Attachment 70787
Attachment 70786
Attachment 70785
I received my EFI kit yesterday and it was a bit dinged up the map sensor was completely smashed so I have to get a new one there goes another $100 bucks