TomZ

So of you guys might have seen my dyno discussion in the general tech section, but for those that didn't: 578 HP at 5500 which wasn't what I expected. Basically, I ended up shelling out about $3K to get a very tired blower set up (word to the wise... when buying used, make sure someone can backup their claims with consequences for not coming through). In the seller's defense I think he was screwed over without even knowing it. Anyway.... I'll redo the blower in the off-season.

I'm looking to have the engine back in the boat in the next week. The rigging is just about done. I finished the bilge Sunday night/Monday morning. If I can make it happen, I'll drop the engine in over the weekend! Then I just need to button up the transom assembly and get to it.

I'll get pics when I can. Here's a pic of the engine on the dyno:

[ATTACH=CONFIG]542017[/ATTACH]

TomZ

Even with the above... still should run 75-78 with a 26P Bravo 1. That's where we're starting anyway.

Mr Maine

I hope it meets your expectations. As a reference we dynoed a 454 at 496 horse in a 242ls and it runs consistently 68 to 70. With a 365 horse mag it ran 57

TomZ

What prop were you running?

Mr Maine

23 Mirage Plus @ about 5400. Motor made max power on dyno at 5200.

TomZ

Do you remember the torque? Mine is 600+ under 3K RPM.

I'd think it would spin more prop.

Mr Maine

Torque was around 530 at 4300ish rpm where we ended up with timing at 35. Actually made more torque, 540 or so at 33 degrees but peak power fell a bit. Torque was near or above 500 at the start of the run at 3k rpms and all the way through the range.

masi242

Tom i have been following your build and that sucks that the blower is tired and your still very close to 600hp in a 242. this should be very fun to drive, we look forward to seeing this on the water.

TomZ

Thanks! I know it's going to be surprising! My next direct investment will be steering (probably before fixing the blower).

On to updates...

Worked on getting the bell housing back on. What a b!tch!! I followed someone's advice and pulled the support spring from the new bellows. That was a f'ing mistake! I'll need to take it all apart. At least the new trim and tilt parts went in nicely!

I also replaced the water hose with a stainless steel tube adapter kit to fix the bravo-itis deal that led to fixing the transom in the first place. Really cool, but not easy to install, and probably near impossible with the engine in the boat (you have to pound the thing in just about). Here's a link:

http://www.amarket.com/BRAVOitis.htm

Saturday or Sunday, the engine goes back in! I've already reserved the forklift at one of our businesses!

TomZ

Got forklift keys... Looks like tomorrow is the day!!!