| Author |
Message |
    
Jody d. singletary
Member
Username: jd_singletary
Post Number: 46
Registered: 12-2007
| | Posted on Sunday, November 08, 2009 - 10:55 pm: | 
|
Hello,
I have an 80 model chris craft 31 footer that originally had small blocks and paragon transmissions.I replaced the small blocks with 454 crusaders and reused the transmissions and the 15x17 three blade props.I can tell the transmissions are tired,one leaks fluid and sounds pretty bad in reverse.the other one turns while in neutral and also sounds bad in reverse.I know the props are way too small and plan on re propping the boat.I alredy have a set of 18x21's i want to try but i know they are only gonna be even harder on the transmissions.My question is would i be better off buying a good used set of velvet drives than putting any money in the paragons.and second,what ratio do you think the paragons may be.I know they are reduction gears but the data tags were gone. thanks |
Fastjeff
Senior Member
Username: fastjeff
Post Number: 7100
Registered: 09-2003
| | Posted on Monday, November 09, 2009 - 06:02 am: |
|
I would bet that a 1.5:1 ratio would do it. Nice boats! Was looking at one myself years ago.
Jeff |
Jody d. singletary
Member
Username: jd_singletary
Post Number: 47
Registered: 12-2007
| | Posted on Monday, November 09, 2009 - 11:50 am: |
|
Thanks for the reply jeff.What is your opinion on the paragon transmissions?Do you think they will hold up behind the big blocks or would i be better off finding a good used set of borg warner gears? |
Fastjeff
Senior Member
Username: fastjeff
Post Number: 7109
Registered: 09-2003
| | Posted on Monday, November 09, 2009 - 05:31 pm: |
|
A better choice is to find B & W Velvet Drive model for that higher hp.
That thing must go like a raped ape with big blocks! The one I was looking at had only 305s in it.
Jeff |
Jody d. singletary
Member
Username: jd_singletary
Post Number: 48
Registered: 12-2007
| | Posted on Monday, November 09, 2009 - 06:29 pm: |
|
The boat is way underpropped right now so i mostly just putt around.It wont stay on plane at anything below about 3700 rpm.every once and a while I plane her off and let it eat for a bit just to keep the carbon build up from all the low rpm use to a minimum but I am skeptical of my transmissions so i try not to push em too hard. thanks for the advice |
Fastjeff
Senior Member
Username: fastjeff
Post Number: 7115
Registered: 09-2003
| | Posted on Tuesday, November 10, 2009 - 07:17 am: |
|
Tell you what, get that sucker straightened out and I'll come by for a ride! And I'll even pay for the gas!
Jeff |
Jody d. singletary
Member
Username: jd_singletary
Post Number: 49
Registered: 12-2007
| | Posted on Tuesday, November 10, 2009 - 10:31 pm: |
|
awesome,if you could go ahead and send the gas money now that would be great,that way we lock it in at todays prices,you never know when it will go up.Tell you what,if you are an ever in the houston area let me know and we'll go for a ride and you wont need any gas money. |
Fastjeff
Senior Member
Username: fastjeff
Post Number: 7122
Registered: 09-2003
| | Posted on Thursday, November 12, 2009 - 05:55 pm: |
|
Ah-hah! Your check is "in the mail".
Jeff |
