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-   -   292 won't run 70-72 mph (https://www.offshoreonly.com/forums/formula/262057-292-wont-run-70-72-mph.html)

Berglund 09-25-2011 03:54 AM

Seems this Q&A session about tabs would do better in the "Trim tab Replacememt" thread, so if any moderator would be so kind to move it..


I dont't know for a fact what the new kit includes since mine was used. But basicly what you need is the tabs which are the same for all boats. Then the assembling screws, which are boat specific depending on transom thickness. I used three different lenghts on each mountingplate. Then you have the hydraulic pipes which are threaded and also goes as a screw for assembly. Those were to short for the Formula pre-fab stringer and should probably be elongated in some way for best result. I've seen Formula themself just countersinking into the stringers to make them fit, with possibility of reaching the wooden core of the transom if not careful. I know of a 382 whose transom got wet through this missuse. So I really recommend making them longer.

So screws in differenth lenths, a longer version of the hydraulic threaded pipe (possibly custom) are the things I would say are a bit special for the 292/Formula.

Then it depends on where you like your pumps. I dont't know the length of the included hoses, but they will probably be enough for my recommended location behind the powertrim pumps. On port side I had to move the blower fan just 2 inches to fit the mount.

I'm pretty sure mounts are included since the "internal" electrics of the K's are built around it.

Summed up this is more of a rebuild than just a parts upgrade. The biggest job was to re-gel the transom from the Bennets if you ask me.

4mulafastech 09-25-2011 09:27 AM


Originally Posted by rocket ride (Post 3510674)
Hey 4mulafastech, thanks for the info on trim tabs. What was the $damage when complete. I've Googled complete kits for around $3200. Does this sound right?? Did ya have to glass over the Bennet mounting holes, or just seal them because the K-Plates cover the holes anyway?? Any other problems with the installation??..thanks.....dave

That sounds about right. I had mine installed by a professional shop that was very experienced in this type of work. I think it was money well spent rather than me doing it for the first time without the proper tools. It has been a while, but I recall it being around $4500-$5000 parts and labor. They did have to glass over and re-gel the old mounting holes. Sounds like a lot of money, but I would do it all over again it made that much of an improvement.

Here is a post showing some install details from a while back.:drink:

http://www.offshoreonly.com/forums/f...info-pics.html

Dave

Expensive Date 09-28-2011 08:56 PM

[YOUTUBE]http://www.youtube.com/watch?v=3tpIjCil9kc[/YOUTUBE]


There is some good video of my boat starting at 9:39

turboz67 10-01-2011 05:37 PM

Very cool ! expensive date. It was a great cause. Boat looked good running. How fast were you going.

Expensive Date 10-01-2011 06:05 PM


Originally Posted by turboz67 (Post 3517469)
Very cool ! expensive date. It was a great cause. Boat looked good running. How fast were you going.

Probably 69-70 toward the end.

4mulafastech 10-01-2011 09:29 PM


Originally Posted by Expensive Date (Post 3515100)
There is some good video of my boat starting at 9:39

Nice video and still shot towards the end.

Off topic - I meant to ask something about your exhaust. I know you stated that it took some weight off, but what changes did you notice by not having the exhaust run through the props? Does is cavitate a bit less getting on plane? Does it hold a slow plane speed better? Thanks.

Expensive Date 10-01-2011 10:35 PM


Originally Posted by 4mulafastech (Post 3517574)
Nice video and still shot towards the end.

Off topic - I meant to ask something about your exhaust. I know you stated that it took some weight off, but what changes did you notice by not having the exhaust run through the props? Does is cavitate a bit less getting on plane? Does it hold a slow plane speed better? Thanks.

The main reason that I blocked off the props is that the IMCO exhaust would not line up with the Corsa Y-pipe.There was not enough distance.Thats why I went strait through hull,I had also put new props on at the same time they were 28 stock bravos,my old ones had been cleaned up once.I lost some RPM but thought it was the props.Then I saw a picture of my boat running and it looked like the exhaust was under a lot of pressure coming out.i had already removed one baffle so I took the other one out.RPM back to what I had before.

As per ride, handling it comes out of the water quicker and does not blow the props out I don't know if that is because there is no exhaust coming through them or the weight reduction.It also rides a lot better going over boat wakes it doesn't slap like it did before.I only did this because I needed exhaust and it was way cheaper to do the IMCO than stock Mercury,I never expected to pick up speed but the way it goes on plane was a nice suprise.As for slow plane maybe a little but I usually run like 50-55 if I'm just cruising so I'm not really sure on that.

I could put 30k into her and make it kinda what I want,but I think I will just get into something else.Problem is I'm not sure what that is.Keep going back and forth but it will probably be a 35 Fountain..... at least this week anyway.

pocketchange22 10-02-2011 12:53 PM

not tryin to hijack the thread,...anybody runnin whiples on there 292.? Kind of a bolt on performance upgrade, rather than pulling motors and such, easily get better holeshot, mid ,and top end power!! just my 0.02 any imput /suggestions would be great.

Expensive Date 10-02-2011 02:10 PM


Originally Posted by pocketchange22 (Post 3517846)
not tryin to hijack the thread,...anybody runnin whiples on there 292.? Kind of a bolt on performance upgrade, rather than pulling motors and such, easily get better holeshot, mid ,and top end power!! just my 0.02 any imput /suggestions would be great.

I think someone did it a few years ago,don't remenber who or if he is still on the board.My only concern would be the cast pistons in the 6.2s.

4mulafastech 10-04-2011 05:57 PM


Originally Posted by Expensive Date (Post 3517599)
The main reason that I blocked off the props is that the IMCO exhaust would not line up with the Corsa Y-pipe.There was not enough distance.Thats why I went strait through hull,I had also put new props on at the same time they were 28 stock bravos,my old ones had been cleaned up once.I lost some RPM but thought it was the props.Then I saw a picture of my boat running and it looked like the exhaust was under a lot of pressure coming out.i had already removed one baffle so I took the other one out.RPM back to what I had before.

As per ride, handling it comes out of the water quicker and does not blow the props out I don't know if that is because there is no exhaust coming through them or the weight reduction.It also rides a lot better going over boat wakes it doesn't slap like it did before.I only did this because I needed exhaust and it was way cheaper to do the IMCO than stock Mercury,I never expected to pick up speed but the way it goes on plane was a nice suprise.As for slow plane maybe a little but I usually run like 50-55 if I'm just cruising so I'm not really sure on that.

I could put 30k into her and make it kinda what I want,but I think I will just get into something else.Problem is I'm not sure what that is.Keep going back and forth but it will probably be a 35 Fountain..... at least this week anyway.

Thanks, that all makes sense. I usually cruise around 50 mph myself, but occasionally pull kids on a tube and low speed planing would be a benefit.

I know what you mean about getting something else... I went from a 110 mph Talon tunnel to the 292. Yes, it gets kind of boring, especially on calm water. I think you should put the 30k in the 292!:evilb: I might learn a few things.:drink: Seriously though, it would be unique having a fast Formula 292(sleeper), not to mention less $$.


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