IMCO's New Dual Down Shaft Lower
 

SCX Dual Down Shaft Lower 1:50 New low profile dual down shaft lower. More strength, more speed. 2 Vertical shafts, 2 pinion gears, 2 prop gears, 1 1/4" prop shaft
https://cimg8.ibsrv.net/gimg/www.off...5d7e1ba795.jpg

Similar to the #6 & M8 ?

Yes, here is a better picture - Home page

Bullet is still the same diameter as the sc/bravo. Smaller yes but not as streamline as the #6

I am Very happy w my SCXs Now if I could get the rest of the chit back together lol

wonder whats going on at Herb's...........:bong:

You are funny were on earth did you get that. ? LMAO

Yea would be nice if you weren't getting your eyeballs gouged out every time you turn around to buy something for a boat

Copied from FB post

Jeff Harris is at Harris Performance LLC.

August 28 at 11:17 PM · Dadeville, ALI've been sworn to secrecy, but the word is out now and I'm proud to say that we have came far enough in this business to where we were able to be the first ones in the nation to not only see, but trial the new Imco Marine dual downshaft sc lower. Imco trusted us enough to send us the only set in existence to run on our procharged Cigarette. We had multiple issues shredding lowers with the heavy boat that was cranking out 975 pounds and 1100 horsepower with the procharged engines we did for it. Long story short, the boat would shred a lower at every event it attended, and after the dual downshaft lower, the boat has went an entire season including havasu and loto without a single hiccup. Imco knocked it out the park here, if the bigger gearcase scx lower isn't for you, if the sc lower is to wimpy for you, if the swap to a number 6 isn't for you, you be gotta check out this lower, it's a real game changer!!

So these are smaller then the standard SCX lower?

Quinlan, from what I gathered. Smaller than a typical SC even.

It was out at the havasu street party back in April. The one pic I took and talk to IMCO in person plus the testing started back before then and continued in April It was not any secret and if you at the street party Havasu back then it was on displayed at HERBS the whole time for anyone to see and throw out your questions.

Are they faster than the standard SC lower or just stronger?

Will it bolt to a SCX-4? Would it put the prop 2" deeper?
Does it come "blueprinted"?
Is the propshaft stronger yet? I've seen several break and lose the prop too.
Who makes a prop for a 1.25" shaft that won't sling blades while surfacing?

Will not bolt to the scx-4, this is a scx lower, different bolt pattern than the scx-4.

I’d like to hear speed numbers or prop slip numbers vs the 1400 scx lower as well. You’d think if there was a big increase in speed or decrease in prop slip Jeff would’ve noted it in his post on bookface. Looks to me like bullet nose is more gradual but the rear is the same diameter as a sc or bravo.

We had several things going on at one time with the ole Cig, so hard to make a fair comparison. But I will say that we added another 120 horse to the boat, had it in havasu and beat on it pretty good without a single issue all season. Personally I am sure its faster than the scx lowers with a bravo based prop. The slip numers are in the 13 to 14% But the reasons for my post was more about strength and durability more so than the performance. The Cig is knocking on 110 and still playing with props, so they are running pretty well.

Any news on these drives ?

do they make it in -3

Does it have low water pick up?

It says -2 low water pickup up, River Dave's has an article online

I would like to trade the bulbus SCX lower sitting on the self for one of these, but I would want to test it for a month so I know it's not going to end up on the same shelf.

I need -3 or my gearcase will be in the water causing drag and transom lift.

Damn that thing is beautiful!

They claim you run this one deeper in the water, don't want to get suckered again, need to see it and try it before purchase.

It's only a picture and they always seem to take them from the best angle.

I'm starting to think these things aren't selling, no feedback from anyone.

I can’t imagine they’re flying off the shelf for 10 grand. If they made something like the bullet on a #6 maybe, but not what basically is a dual downshaft bravo lower.

Here's some feedback (though I'm guessing the boat's owner is on this thread ... screen names make it hard to know :)), https://speedonthewater.com/boat-res...te-application.

This story was from September, so while the product in question is relatively new it's not exactly brand new.

I don’t think you’d want to run this lower deeper in the water. Look at how thick the it is above the bullet in the picture from dsmawd350. If that’s underwater or near the surface I’d think it’d create an air pocket in front of the prop. See pic below of standard SCX lower next to bravo lower, much thinner above bullet. The SCX-4 lower is thick above the bullet as well but I think most of those drives are ran as a surfacing drive with cleavers.

https://cimg3.ibsrv.net/gimg/www.off...a1ede074f.jpeg

Props to imco for innovating. Would love to see same day back to back results of standard scx lower vs the dual downshaft lowwr

Thanks for the input, it helps seeing more pictures, seems to me the wide flat area on the back of the drive would cause major aeration of the prop. Can't really tell if the bulbous mass has been removed from the sides of the housing. I would like to compare the SC lower with the dual down shaft lower, we've already experienced the poor handling and loss of speed caused by the SCX lower in our application. It would be nice to find the missing link that actually worked.