You are correct. They have gained 8mph over a scx with this new drive so far.

8 mph is pretty good so far. The arneson averages about 10mph from what I have read.

imco scx-4
 

i guess that by now everyone knows that the pics in the thread are not of the surface drive lower. the new shape should help considerably. i can't wait to try it on a fast single engine cat within the next few weeks.

You are wrong. There are pics of the New Surface -4 lower.

Here

Any idea how much? When will they be for sale?

they are about 12.5k with #6 shaft and avail now. the pic in post 85 is the real one that i was referring to.

So what will it cost as a complete drive with box and steering ect?

http://www.imcomarine.com/cal_store/...ing-black.html

12.5 scx
8.5 gimbal and steering
800 new helmet
300 xl reservoir
400 crap coupler
bellhousing, etc$$$

Thats why Arnesons ARE cheaper when you compare apples to apples. But you 'can' save some money since most boats have gimbals and hyd steering... then again its stock bravo hardware. I have gone thru 2 couplers in another boat and just have a bad taste for them... whats the limits of the coupler? Mine were due to alignment but holding them in hand doesnt give me a warm fuzzy, not to mention gimbal bearing and shifter cable issues ive had on the fountain

That was somewhat what I was thinking. How much is a box?

$8.5K for a gimbal and steering is really sobering - man what a crazy expensive hobby.

i think the prices quoted for everything are about right. mine is a new build, so i had to buy everything anyway. the total is around 20k. if it is reliable and as fast as an XR sportmaster, it will be worth it. i have grown tired of being towed in due to broken bravo xr forward gears. it happened so many times that i had to learn how to rebuild them. kinda takes the fun out of boating. i am hoping that my new rpm redline 26 will do 110+ with my n/a 598. if so, it will be 15 mph faster than my current dcb mach 26.

THIS THREAD SUCKS!

Read the title "new drive from imco"

Not old scx from imco

The new drive that is not out yet. It is a SURFACE Drive not a standard sterndrive. If you want to talk about a standard SCX start a new thread.

If you have info on the SURFCACE drive version post here

Funny you say that they arent out yet, since Imco is taking orders for them.

I wouldnt even call it a surface drive, any more than you can call any bravo drive mounted high a surface drive. Yes, it is shorter, but depending on the level it is mounted on the transom it may or may not be a surface drive. I think a more appropriate name for it is a -4 SCX.

it is a new drive, it just uses the proven scx platform. no other upper casing from Imco has the same configuration. the drive is designed for surface applications. where the x dim on the boat is is totally up to the owner of boat manufacturer not Imco..i would love to see this as a duo prop too.

Where are they taking orders? Not on their web site? Who has one? How do you know all this.

I don't know why they won't tell you about these. They sold me these "Surface" drives last year. Must be holding all that Arneson cheerleading against you.

if I am following the thread correctly - i believe the drive that everyone wants to know more about is the one being reffered to as the "-4 SCX"

you are correct

I called IMCO. Their tech/sales guy says that the new - 4 surface drive has the same internal gears on both the upper and lower as the SCX, but both the upper and lower cases are different to allow for the -4. The drive is not yet available but should be out by Dec or Jan. They plan to retail the drive for $16,650 per drive which will include a new Helmet and reservoir in that price.

And it will look like the drive in this previously posted pic.

Thank you for calling them! Myself and many of my friends have called over the past few months without any luck.

How does it feel to be wrong when you were so cocky about being right! LOL

Arneson cheerleading or any bravo bolt on surface drive excited me!

2002 Lightning, 19.5 X
Would this -4SCX work on my boat?
Reggie?

What is the height range for the lower bullet above/below the hull in inches to be considered a surfacing application using a standard transom assembly (no extension boxes)? These things could be the simple (albeit expensive) answer to a lot of guys prayers.

Yes, it's going to be killer. Higher X dimensions, larger dia. #6 props. Less drive in the water, more prop in. Faster boats, less broken props. I want two. Just gotta cough up 30k +.

Check out imcos facebook. There are pictures of the new drive there

WOW! FACEBOOK has all the good info! Funny chit. Thanks for posting.

Dan...yes you need a pair of them! Looking forward to a ride in your fountain once installed! Not sure if it can top the ride you gave Kristy and I in the saber at the TC Bay blast poker run though!

Too bad the -2" lower wasn't redesigned either.
Really want the drive as I can't afford 5k+ a prop, but still want the reliability of using an SXC lower.

Man now I think I will wait and look at this drive big time. How much for a #6 prop? And just wounder so getting on plane will be better with number 6. My set up now is a imco 1.35gear lower -2 and a bravo one 35". Just to ask....... What would get up better my setup now or this new drive with a number 6?

Thank u

Does anybody know if the lower has has been slim down or did they just add a bullet to the nose.If that was the case i dont why you couldnt adapt a imco nose cone to the old scx lower.

its a 4'' shortie. its a new upper and lower case.

i understand they redesigned the upper and lower to make it shorter. The -4 does not interest me since i can mount the old scx in a surface drive prop shaft depth if i want.The design of the bullet and shape the lower does interest me. from a glance besides it being shorter it looks like the old scx with a imco bravo nose cone. im not talking bad about the drive .i just dont want to sell my old scx to get a drive that is 2 inch shorter with a nose cone.

Your forgetting the most important part. The ability to run a true surface style prop which is larger in diameter....like a #6 or a hering. Your current scx will not.

You can run a speed master prop on the old scx with a propshaft change.Im not being a hater.I can see if you didnt already have the old scx it would be the way to go.I just think the only real big advantage over the old one is the design of the new lower.Which i think could be duplicated with maybe a nose cone on the old scx lower.

Yes you can change the propshaft but the new SCX4 upper case is also an advantage with the curved cavitation plate to allow for a larger prop along with the higher prop height. How would you accomplish the higher prop height on your current setup?

IMCO tested multiple nosecone options on the old scx with no speed gain. There is a trade off, you gain strength with the larger gears but more drag, thus lower speed. I understand where you are coming from and do not think you are a hater. You could also have Wilson Custom Marine Blueprint your current lower.

great info,so if they didnt pick any speed on the old lower with nose cone.how is the new lower faster.It cant be much thinner
it has the same gears.

It looks like you can run a larger diameter prop 6 style allowing to raise the bullet higher out of water creating less drag as you can see a longer skeg to keep control at high speeds,looks awesome the scx is a great drive but the lower wasn't liked much this looks like imcos answer,would love to try a set on my donzi zrc as i am running imco -3 now and work great,just need to hit the loto for some whipples and scx -4

sc-4 drive arrived today. have 2 props to try, a herring and merc. lower is 1.5 so expect a 32x16.5 will be about right. steve will try on his boat within the next 2 days. will post results. this is probably the first single engine cat tried with this drive.

Its not just the new lower that gained the speed. Its the combo of the lowers design, added to less drag since its raised up, and most important the much more advanced surface style prop. At $5400 each for a hering 5 blade they must be doing something!