Bossbrakes
New member
Got the Spectra 171 free about 10 years ago. 17'4" long, 7' wide, 1100 lbs.
It has a pad at the bottom, so speed should be good.
Now I have enough time and money to do something with it.
It was outboard power with 150 HP. I never ran it with that.
Didn't like the concept of 150 Hp hanging on the back.
So to keep it light I will install a new Infiniti all aluminum V8 4.5 L with a twin turbo and intercooler. Weighs 550LBS only
The motor is capable of turning 7-8 grand with boost of 10-15 psi. making a WHOPPPING 600-900 PONIES.
Also I finally found an ASD6 drive with drop box 1.56 ratio. The prop shaft is 1.25 with 19 splines.
Looking around a little I ordered a 72L Velvet drive transmission good for 625 lbs ft.
I can marry the 3 together easily. Will need a driveshaft between trans and drive.
Ordered a Hill prop 15x34 5 blade for the 450R rebored the end for the threads.
A few questions have arisen.
1. Where do I place the engine for a good center of gravity.
2. How much is too much power for a small boat.
3. How fast would this machine go without blowin over.
4. Should I install trim tabs on the back.
5. Should I set the drive further back with a 6" box. The drive is already 36" long anyways.
It has a pad at the bottom, so speed should be good.
Now I have enough time and money to do something with it.
It was outboard power with 150 HP. I never ran it with that.
Didn't like the concept of 150 Hp hanging on the back.
So to keep it light I will install a new Infiniti all aluminum V8 4.5 L with a twin turbo and intercooler. Weighs 550LBS only
The motor is capable of turning 7-8 grand with boost of 10-15 psi. making a WHOPPPING 600-900 PONIES.
Also I finally found an ASD6 drive with drop box 1.56 ratio. The prop shaft is 1.25 with 19 splines.
Looking around a little I ordered a 72L Velvet drive transmission good for 625 lbs ft.
I can marry the 3 together easily. Will need a driveshaft between trans and drive.
Ordered a Hill prop 15x34 5 blade for the 450R rebored the end for the threads.
A few questions have arisen.
1. Where do I place the engine for a good center of gravity.
2. How much is too much power for a small boat.
3. How fast would this machine go without blowin over.
4. Should I install trim tabs on the back.
5. Should I set the drive further back with a 6" box. The drive is already 36" long anyways.