what does the box have to do with the ecu? I have seen new imco boxes for 1500 to 2000 on here, so I hope the stellings is in that price. also can you still put the stellings up one inch? if you can do it. cause 3'' with the 12'' set back should work best, it did in the 25ol with the 525. running 63 that low you might not see the gains the 525 boat got. well my new drive is a konrad ace x factor, its a shortie by them and should handle the blower motor a lot better than the bravo1x drive I bought last year.keep me posted with pm's or on here:coolcowboy:. good luck

From what I have been told from other users with the Stellings box is that in certain instances the universal joints will set off your knock sensor. Now this does not happen in every instance but rather some.

Yes, it is in that range but it also includes IMCO single ram steering.

It is a neutral box so no adjustment. It is coming off a 2002 25 OL that Baja used for a tour boat?? It was installed from the factory.

+1,
That can happen on the 496's.

You must be talking about a used IMCO box, the wing bracket and the steering ram. Please tell us where one can find this package for 1200-1500.

Yes the one I drove was an after thought and did not work. I'm glad to hear that some folks have played with the "X" and actually seen increases in speed and improvements in handling.

As always a lot of good information here.

That looks like me right there Jason.

Adam has it calculated that the prop shaft will end up 1-11/16 inch higher than it is stock.

That is good!
I really wish IMCO would make a -3" SCX drive. That would be what I need.
I can't wait to see your boat all dressed up with a sexy new ass!

Yes, it is used but a Stelling box with IMCO steering.

I see ,boy that would sux.the stellings box you can run neutral or raised 1'' right? if you can do that with the 2'' shortie to make sure you are in clean water. the guy from germany got the most out of his 525 with a total of 3'' raised and with his 600sc motor he was at 4'' ,he tried 5'' but it was to high so went back to 4''. thats what I am doing with my new boat setting it at 4'' prop shaft with a 8'' box in a 28 saber hull with my blown 572. and will part out the 24 or keep it play with it.

I have seen them in the swap box for 1000, steering 700, a while ago.

25' O/L with Imco 12" (-2) Extension Box - 500 HP (EFI).

342 w/ Stellings (500 HP's)
36 O/L w/ Stellings (600 SC's)
36 O/L w/ Stellings (540 Bulldog's)
40 O/L w/ Stellings (500 EFI's)

I found a 3'' raised box with everything its 2100 or bo, anyone need a phone# lrt me know. art

My shop is pretty busy right now. Might look better in the spring, but I'm sure your looking to have yours done before then.

Yes, hope to have it done by then. I think it is just going to go to Wilson's and leave it there all winter for him.

My x is 1.5 higher than stock with imco lower 800 hp each in 330l I moved the CG way back water brakes in front of back seat ,the boat runs flat and crushes waves 97 mph full tank 3people,light on fuel Ive seen 100mph I would spend money on imco,s

+2 on the Knock sensors - been there done that.

[QUOTE=Keith Atlanta;2989617]+2 on the Knock sensors - been there done that.[/QUOrigyour right call me at 4127810881 thursday in the am if you can

Excuse my ignorance here, but what is "CG" I'm adding boxes and shorties to my boat this winter and am curious to what your referring too?

Dave I believe he is refereing to Center of gravity= CG

Duh!!!! Just call me slow...

...............

[QUOTE=irishtornado;2989693]Excuse my ignorance here, but what is "CG" I'm adding boxes and shorties to my boat this winter and am curious to what your referring too?
I would think the extetion boxes and the shortys would put your x dimention right were its allready at ,its real easy to test before you go through all that work try the shortys first ,give it alittle trim and try to get on plain with heavy load My 302 had great bow lift ,I felt the cg was good on that boat .If you can get up easy ,you should be able to add pitch and be faster .Its all leverage thats where cg comes in some boats are balanced and run flat, shortys work great with higher HP and todays prop tech.hulls like Baja with alot of bowlift dont like shortys my 33ol went 71 mph when I brought home We found 7 mph before I changed power 78mph 425s 86mph 625s 92 mph710s 97-99 800hp I youst to have to much time on my hands, just call me I hate to type

My 302 didn't come up on plane easily and has a bad bounce while running. Boat had 496Mags upgraded to 496HO's still same problem. Currently repowering with 500efi's adding boxes and shorties with 380 kplanes. Boat would bounce unless drives where full down. Prop height is 7.25" Running 4blade 28p bravo's labbed by Bblades. Will most likely be running 30p Bravo's after the 500's are installed and shorties added.

How does it handle at 100 ?

Last time out mine ran a shade over 94,
and it felt pretty good.....just wondering
how another 5+ feels.

I would start with a straight edge ,check the last 5 feet of the bottom for hooks /rocker 90% of Bajas I look at have hull issues find the problem first then then your boat will appreciate the extra HP I need more info

In our boat theres no difference at those speeds ,its fun you just have to drive it

would leaving rocker on the boat help to lift the bow, if your running boxes. and hook I would think would lift the transom and push the bow down. yes no or is it better to be straight with boxes. art.

my 33 has no hook hull has been blueprinted ,strakes have been sharpend I would think that a rocker would cause a porpoice and the faster you go the porpoise gets voilent,not so noticeable in bumpy water The problem with adding boxes after transomes allready cut ,I would think it would put your drive deaper in the water then adding a shorty would put you about where your allready at biggest benefit would be from shortys alone

I dropped the boat off Thursday to have the ext box and steering installed. I am hope for some benefit from this upgrade. I am putting the Stelling box on at the highest "X" dim setting. That alone should raise the X by almost 2". At that point I will hold off on getting the IMCO shorty until I can get some testing done. Also, I have been tempted with a 500EFI for $12,500 shipped but just cant seem to justify it yet. On a side note, has anyone installed the new E-tops for the 496 yet? I have been back and forth so many times on this and still have not made a decision. My only goal is to keep getting a few hundred RPM's here or there to spin a taller prop to gain that extra few MPH to hit 70. I know I am wishing for alot but still, it's a wish.

you doing all that to hit 70 mph let me know how it works,my guess would be that it will be hard to get on plain ,if you had more hp it would do 1 to 3 mph stock power will result neg.My 25 outlaw did 69 to 70 with 502mag 470 hp it was 1997 some arizona speed mod and exhaust my 302 had 454 mags with similar mods 75 ish

That must have been on the "Dream O Meter". Probably more like 64 on GPS. I know I have raced many 25 Outlaws. My friend's 05 25' Outlaw with 425HP and a propshaft depth of 6.5" runs 67-68 MPH on GPS. A true 70 MPH is hard to get it took me 500HP to hit that mark. I am raising my drive and engine 3" from 8" to 5" propshaft depth. This should get me about 6MPH.

There are many people that have had good success with raised boxes on that boat. Hope it works for you.

back in the day we didnt have gps only radar

It was a lot harder to get ahold of a radar gun. I alway thought my boat went 58-59MPH. Then I got a GPS, boy did that screw me up, my boat only went 55. After years worth of upgrades I got it up to 70MPH. My friends 25' Outlaw reads 4 MPH fast on his "Dream O Meter" liquid filled Gaffig gage. He thought he was running 71 MPH.

My gauge is actually not far off, also a liquid filled Gaffrig, reads 1-2 faster than GPS.

Yes, 70 is my mark. I hope to be close with ext box and labbed prop. This is also the start for bigger power down the line. Hydro steering is a must si I thought I mights as well do a box with it. I hope to either go 500 EFI or Raylar in the next few years. If I could get $8500 for my >100hr 496 HO I would get the 500 EFI this year.

Will never happen. I sold mine with 52hrs for 6500.00 and anything else I've seen forsale people are sitting on them. I'd buy a 500efi or 525 anyday before I'd spend money on CMI's or Raylar kit. You'll have to spend 12k to get the forged internals in a Raylar kit. Merc blue motors already have them. JMO though. I'd look at your bottom I'm guessing you got some to pick up there as well.

Hard to really see it on the trailer but from what I see with a 4 foot straight edge is no hook....flat as can be.