Originally Posted by cwilson

Fountain dont run two speed on the 48's or 42. Only on the Buzzi rigs and we can get the 42 to plane quicker. They use the TD tranni's.
They use a 1.13 on the 42.
MTI and WCM put together a Diesel 39. 440's, ASD8 and TD tranni's.

We are ordering a tunnel flap for it but she runs 93+ right now without turning them up!!!

FYI: My father around 9 years back went to japan to do development work on the 440's they had a Alum. 47 cougar with 4 x 440's only they were no longer 440, but they had those babies putting out 630 ponnies.
I tried to buy the engines but yanmar destroyed all but one so nobody got ahold of them!!!
We did the first 42 with reggie, we had the engines making a true 510hp and ran 680 hrs on them. Of course with the TD tranni's
I race a 42 in P3 class SBI, the boat is a pleasure hull. It planes in 5.5 secs. And will pull 4-5 boat lenghts on 500 EFI 42 from 40 to 70 MPH
It has a Top speed of 88 MPH.
ZF are good but I think the 2 speed is a pain, and you got to shift perfectly every time or the tranni's wont last 10 mins..
I make a custom Air ventilation to prop, with a shut and it is just like a two speed but without the shifting!!!
I will give you more info if you want PM me and I will let you know!!

But whatever you go with Im sure you will love the engines!!!!!

I will send you some photos below of the Custom stuff we do!!