89 scarab panther...
The following users liked this post:
larslindroth (05-05-2020)
Platinum Member
The following 2 users liked this post by jeff32:
larslindroth (05-05-2020), Twin O/B Sonic (05-05-2020)
05-05-2020, 02:19 PM
#3
Registered
Thats a heavy boat w/a deep vee.
I like twins way better than triples but agree w/above on either new V-8 Merc 400’s or the 450r’s.
Youd be approx 1000lbs under twin Bravos and big blocks and close on power for Stocker’s and maybe 5+ mph faster.
Plus you could store a Smart car where the car motors used to be.
Youll want torque though and not hi revving motors w/no low end/mid range.
Triple 400’s would probably be similar in weight to big blocks but you’d have 1200 near bullet proof HPs.
I like twins way better than triples but agree w/above on either new V-8 Merc 400’s or the 450r’s.
Youd be approx 1000lbs under twin Bravos and big blocks and close on power for Stocker’s and maybe 5+ mph faster.
Plus you could store a Smart car where the car motors used to be.
Youll want torque though and not hi revving motors w/no low end/mid range.
Triple 400’s would probably be similar in weight to big blocks but you’d have 1200 near bullet proof HPs.
Last edited by Twin O/B Sonic; 05-05-2020 at 02:23 PM.
The following users liked this post:
larslindroth (05-05-2020)
05-05-2020, 04:48 PM
#4
Thats a heavy boat w/a deep vee.
I like twins way better than triples but agree w/above on either new V-8 Merc 400’s or the 450r’s.
Youd be approx 1000lbs under twin Bravos and big blocks and close on power for Stocker’s and maybe 5+ mph faster.
Plus you could store a Smart car where the car motors used to be.
Youll want torque though and not hi revving motors w/no low end/mid range.
Triple 400’s would probably be similar in weight to big blocks but you’d have 1200 near bullet proof HPs.
I like twins way better than triples but agree w/above on either new V-8 Merc 400’s or the 450r’s.
Youd be approx 1000lbs under twin Bravos and big blocks and close on power for Stocker’s and maybe 5+ mph faster.
Plus you could store a Smart car where the car motors used to be.
Youll want torque though and not hi revving motors w/no low end/mid range.
Triple 400’s would probably be similar in weight to big blocks but you’d have 1200 near bullet proof HPs.
05-05-2020, 06:16 PM
#5
Registered
I know those motors very, very well.
What yr motor do you have?
The ‘93 and up are way better than earlier.
Regardless of yr, they are 450 lbs.
For sure you’d need three of them.
W/triples you’d be at 1350 lbs and 675 HP’s.
So compared to the big blocks it came with, you’d be 900+ lbs down w/Bravos and I think more w/TRS’s and I think it’s required transmissions??
W/triple V-6 OMCs I’d guess you’ll have a 55 MPH boat.
A good engine builder can easily add 50-75 hp per motor which would total 150 - 250 HP’s and probably 5 - 10 MPHs.
What yr motor do you have?
The ‘93 and up are way better than earlier.
Regardless of yr, they are 450 lbs.
For sure you’d need three of them.
W/triples you’d be at 1350 lbs and 675 HP’s.
So compared to the big blocks it came with, you’d be 900+ lbs down w/Bravos and I think more w/TRS’s and I think it’s required transmissions??
W/triple V-6 OMCs I’d guess you’ll have a 55 MPH boat.
A good engine builder can easily add 50-75 hp per motor which would total 150 - 250 HP’s and probably 5 - 10 MPHs.
Last edited by Twin O/B Sonic; 05-05-2020 at 06:32 PM.
The following users liked this post:
larslindroth (05-07-2020)
05-05-2020, 08:17 PM
#6
Gold Member
Gold Member
Triple Johnrudes? You've found Mr OB Sonic's G-spot. 
I'm an outboard fan and like old school boats. Whatever you do, I hope you start a thread and post pics, you'll get plenty of followers and lots of good info. There's a load of knowledgeable guys here who are happy to help. Twin OB Sonic is one of them.
Good luck and welcome to OSO!
RR
I'm an outboard fan and like old school boats. Whatever you do, I hope you start a thread and post pics, you'll get plenty of followers and lots of good info. There's a load of knowledgeable guys here who are happy to help. Twin OB Sonic is one of them.
Good luck and welcome to OSO!
RR
The following 3 users liked this post by rak rua:
The following 2 users liked this post by Cary 29:
larslindroth (05-07-2020), Twin O/B Sonic (05-06-2020)
