Imco SCX with SC or SCX lower?
 

I am ready to order some drives and for sure going SCX upper but thinking SC lower. Will SC lower hold up to 800HP? I know dual down shaft is option but expensive! SCX lowers are pretty good deal but have been told they will slow boat down considerably compared to SC. Any opinions....

Loose a couple mph or find the next weekest link lowers , are you doing -4,s or reg bravo set up ?

Just -1 bravo set up.

The SC lower has XR gears from what I'm told, so will it hold 800 ponies ?? not sure, a lot comes into play in how its driven

Fred at IMCO told me when I did my SCX upper SC lower combo the SC lower was good for 1000HP.
I run Smith Power 800 HP motors with no problems.
Like anything how you treat it will be the final tell.all.

Thanks!

I am Very happy w my full SCX's. Yes I did lose some top end. BUT I have Not had any down time due to drives since I installed- Brad installed in 2013-
725+ hp- Just pulled my best speeds last week before haul for winter
Did I mention NO DOWN TIME since SCXs- Well Due TO SCXs lol

SCX with DD Lowers are really worth the money , I would go full scx for heavy boat / rough water / big Hp.
I also get the -2 , with a 2" spacer so I have some leeway to adjust propshaft height.

How much speed did they cost you?

In 2 years I broke 4 Bravo props. In 4 years I broke 2 Maximus props. I don't think I'll break the #6 props.
It's not just about the drives, make it all bigger!

Yep back to the next weakest link brave props are not made to surface .

When I was first running them I was down 5mph or more easily.
Now I have been trimming them up higher and have gotten a lot closer to where I was before- so now I would guess say 2-3.
I still think it has more in it too :drink:

XR's cost me abut 95MPH as I idled in on one more times than I want to remember.

I am running an X drive upper with an IMCO Sc -3 lower behind a 598 CI at 800 HP - 26 Daytona - prop is fully surfaced, water goes under bullet at speeds over 100 MPH, no issues yet

Pretty light boat also ^^^^^

#4500 empty. that is not a light boat for a single, Twin engine splits the load.
My 34 SCARAB was #10,000 dry with Bravo uppers and Imco -2 SC lowers, 509 CI at 650 HP

I run sc lowers on my tiger at 850, no issues as of yet... i will do dual shafts down the road as I'm taking it to 1000 per side.

I have an SCX 1400 lower for sale with only a few hours on it. Just was completely gone through and is 100%. They are bulletproof. It is 1:50 gear ratio. I have a 1" spacer for it as well.

Do you have just 1 or pair of lowers??