Props spinning in or out
 

Just curious as to which direction most of the Black Thunders are spinning their props. I understand the IN/OUT dilemma but just seein which works best on these particular boats. Thanks

The props should be spinning OUT .

Spinning in gives you nothing but stern lift and you loose almost all your docking abilities.

BT's do not normally need stern lift. Hulls do the work very well of lifting the stern. Mine are spinning out.

Thanks guys, just wasnt sure, had staggered stepped fountains before this boat and the props always turned in. Is there a bunch of Black Thunders running BMAXs? Bob Jenkins has told me to leave them on the boat as he knows that more HP will be coming for me soon.... lol They just seem like overkill

Go to the APACHE section ,,,TRES MARTIN proofed me wrong and its vise versa ,,spining in gives u bow lift ,,NOT STERN LIFT !!!!!!!

Well i have done both with the BT and in is nothing but a cluster f,

side by side engine configurations on 46's BT's need them spinning out. It's easier to dock, and they are more stable. Spinning out also creates transom lift which the BT's actually need. And if you haven't had any issues with the Bmaxes, keep them on! :)

What power are you running?

500EFIs .... have one whipple for it and waiting to purchase the next. Hoping to see an honest 600hp with some reliablity

Saxman which way are you with the staggered setup?

Watch out smacking the throttle to quick, stuff goes boom really fast.

we are spinning in. Over 100mph, it needs to be spinning in otherwise it starts chine walking. The slower speed hulls (90mph and under) work best spinning out usually.

Well, after a solid day of running hard at a poker run, i blew another BMAX.:mad: Funny thing was, it was when i was giving the boat throttle to load it on the trailer. No more than 1500 rpm. No damage to the prop, like it would have struck something. Im killing these drives left and right. Any help, info, ideas, or know where some BMAX parts are at so i can carry spares. Also, is having a 1.36 ratio making these drives more prone to failure. Any help would be greatly appreciated.

We have a rebuilt form B max lower if you need one. It was one of our customers spares, he has sold his BT.

Mike




Maintaining the Leaders www.teammarineunlimited.com.

I have a 96 BT started with 800 merc's now 1100 hp
Holdbrook engine's, Livonia, MI. With 3A drives, 532 hours on
drives never been taken apart. Back lash with in rebuilt spec's
Big boat needs big drives !!!!! All I do is replaces U-joints every
100 to 125 hours and oil every 100 hours Get rid of those baby
Bravo's or what ever they are called !!!!!

LETS SEE SOME PICS
thanks Bob

nice! What speeds ya seeing out of it?

Mid 90's, cruise 70 to 80 boat is heavy

http://i605.photobucket.com/albums/t...a/P5190063.jpg

http://i605.photobucket.com/albums/t...a/P5150058.jpg

N I C E !!!!!!!!!!!!!!!!!!!!!!!:ernaehrung004:

actually it was me that proved you wrong, again and Tres as well as a couple other people verified it. carry on :)

Nice Ride

OK,OK Rob ,,,u and tres prooved me wrong !!!

Friends now ? LOL:grinser010: