Sign in to follow this  
Robertsail

Should I switch my inboard to an Outboard...J/92

Recommended Posts

Looking for anybody who has any info on the improvement on the race course switching to an outboard compared to an inboard worked for PHRF racing.  Currently I  race my J/92 with a PHRF rating of 108 but would like to race closer to the Olson 30's that I race against.  Thinking of switching to an outboard with the penalty.  I have heard that it is well worth it with the J/29..  Any comments will be appreciated. 

Share this post


Link to post
Share on other sites

We have a local J92 that went from inboard to outboard due to a fishing line incident around the shaft.  Here is there certificate.  Currently they are highly competitive against an Olson 30 and j-29 along with various other B Fleet boats.  Click on the arrows in the modification area to see adjustment/reason.

https://c0eru285.caspio.com/dp/0dc330002829dcc1ad864b5bb094?appSession=025PN0C8WW5M3JGN8LSEMB7537A9PR4F29H998J35774C60U97R1W5JWXK4JO6D801999CRG0J197I54VDKIXXP0Y3C6C20IA00SLYQC67CTDK181LJKL720485Q5MU1&RecordID=3420&PageID=8&PrevPageID=2&cpipage=4&CPIsortType=asc&CPIorderBy=Mfg_Type&cbCurrentRecordPosition=333&Mod0LinkToDetails=True

Share this post


Link to post
Share on other sites

One local racer converts all his boats to outboard, even ones you’d never expect. The general consensus is PHRF doesn’t penalize you nearly as much as you gain. If you can put up with the hassle, it is worth it. 

Share this post


Link to post
Share on other sites

Thanks , The spreadsheet was great.  Would love to talk to the one fellow running the outboard on his J/92.  The funny thing is my wife is also wanting me to make the switch.  She hates inboards mostly due to the smell and noise in the cabin while we cruise.  How much faster do you think it actual helps,, 3s, 6s 10s etc?

 

Share this post


Link to post
Share on other sites
22 hours ago, Robertsail said:

Looking for anybody who has any info on the improvement on the race course switching to an outboard compared to an inboard worked for PHRF racing.  Currently I  race my J/92 with a PHRF rating of 108 but would like to race closer to the Olson 30's that I race against.  Thinking of switching to an outboard with the penalty.  I have heard that it is well worth it with the J/29..  Any comments will be appreciated. 

Out of curiosity, what speed does your 92 power at now?  My friends’ 92 is clearly propped wrong and is dogshit slow under power. 

Share this post


Link to post
Share on other sites

I will check for sure. I just have a gps reading no knot meter and I am always in current. But I think it is around 6.6knotsat 3300 rpm .  I am usually the fastest under motor compared to the rest of my club.  I have an extremely smooth hard bottom (VC offshore). Although if there is a headwind I do find the boat gets slow due to the windage of everything compared to others.  Will find out for sure and get back to you but I have never felt underpowered. 

 

  • Like 1

Share this post


Link to post
Share on other sites
On 8/14/2020 at 2:43 PM, Robertsail said:

I will check for sure. I just have a gps reading no knot meter and I am always in current. But I think it is around 6.6knotsat 3300 rpm .  I am usually the fastest under motor compared to the rest of my club.  I have an extremely smooth hard bottom (VC offshore). Although if there is a headwind I do find the boat gets slow due to the windage of everything compared to others.  Will find out for sure and get back to you but I have never felt underpowered. 

 

Much appreciated. My friend’s boat really needs a new prop, and knowing one that works for sure would be nice. Hell, if you do yank the inboard, let me know, I’d be happy to buy the prop!

edit:  they max out at 5.5 with their current setup. 

Share this post


Link to post
Share on other sites

Went out and checked using my GPS ..... I can go 6.6 with 3300 rpm 7 knots at 3500 rpm . 

 

Share this post


Link to post
Share on other sites
1 hour ago, Robertsail said:

Went out and checked using my GPS ..... I can go 6.6 with 3300 rpm 7 knots at 3500 rpm . 

 

That’s got us beat by over a knot and a half!  Thankfully it sails fast. 

Share this post


Link to post
Share on other sites

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now
Sign in to follow this