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-   -   Imco SCX new lower? (https://www.offshoreonly.com/forums/drives-lower-units/297190-imco-scx-new-lower.html)

Magic34Fin 05-29-2013 11:33 AM

Imco SCX new lower?
 
Ive heard theres a new design lower for the SCX which has more of a bullet point on the nose. Anyone know how it works?? Is it as fast as SC ?

Quinlan 05-29-2013 05:43 PM

1 Attachment(s)
These are my new ones. Not sure how different they are and they have NOT been wet yet - Damnit man

offshorexcursion 05-29-2013 07:48 PM

Looks great! Thanks for sharing.

Last I hear IMCO tested and the lower is only good for cosmetic. It is NOT faster then the blunt nose SCX lower. The gears are still larger creating a wider lower with more drag. Still worth it over breaking drives!

drpete3 03-07-2014 12:50 PM

and what is the verdict

GAZ 03-07-2014 08:11 PM


Originally Posted by drpete3 (Post 4086022)
and what is the verdict

Imho the verdict is WINNER! A whole season of not worrying about breaking my drive. AND I don't have to worry about BABYING it!

skydog 03-08-2014 11:21 AM

Was going to get one for my 27 Daytona but guys with same boat losing 15-20 mph!!!?????? Not sure how thats posable but heard more than one..... sucks!!!!

GAZ 03-08-2014 05:53 PM


Originally Posted by skydog (Post 4086389)
Was going to get one for my 27 Daytona but guys with same boat losing 15-20 mph!!!?????? Not sure how thats posable but heard more than one..... sucks!!!!

That's BS !!!

skydog 03-08-2014 06:03 PM


Originally Posted by GAZ (Post 4086507)
That's BS !!!

http://www.offshoreonly.com/forums/e...7-daytona.html

......

skydog 03-08-2014 06:04 PM

Not talking **** just what I see.... sucks because I want one......

GAZ 03-08-2014 06:19 PM

No B/S here. My boat I lost maybe 2mph. I'm NA 500efi at 7500 msl . went from 55mph to 53 mph. GPS. Running the same prop. So if they are loosing that much mph sounds suspicious. Post 7 of that thread sounds like the drive they have didn't come direct from IMCO and maybe the ratio is off. I don't know. I'm just saying at my speeds it was barely noticeable. And I will take that loss for no broken drive.

skydog 03-09-2014 10:09 AM


Originally Posted by GAZ (Post 4086517)
No B/S here. My boat I lost maybe 2mph. I'm NA 500efi at 7500 msl . went from 55mph to 53 mph. GPS. Running the same prop. So if they are loosing that much mph sounds suspicious. Post 7 of that thread sounds like the drive they have didn't come direct from IMCO and maybe the ratio is off. I don't know. I'm just saying at my speeds it was barely noticeable. And I will take that loss for no broken drive.

Very glad to hear this!! :-) :-)

Uncle Dave 03-09-2014 10:42 AM

Im wondering if a Rem polish on the gear might bring back some of the loss.

UD

Quinlan 03-10-2014 08:00 AM

1 Attachment(s)
[ATTACH=CONFIG]520044[/ATTACH]


I might have lost a couple also.

Whole season without breakage---- Priceless!!!!!

Not that I am Hard on them!

MarkDonzi 03-10-2014 05:40 PM


Originally Posted by Quinlan (Post 3933434)
These are my new ones. Not sure how different they are and they have NOT been wet yet - Damnit man

Thode look sweet, let us know how they run!

575cat 03-10-2014 05:52 PM


Originally Posted by Quinlan (Post 3933434)
These are my new ones. Not sure how different they are and they have NOT been wet yet - Damnit man

Those are standard SCX , those and the -4,s also have very thick skags .definitely a better shape .

Quinlan 03-11-2014 05:27 PM


Originally Posted by MarkDonzi (Post 4087453)
Thode look sweet, let us know how they run!

Ran all last year without missing a beat!

575cat 03-11-2014 09:40 PM

I have a pair of SCx-4,s in the classified,s if anyone is interested . I have 1 and 2 inch spacers available for sale also .

Cobra100+ 03-12-2014 06:06 AM

I ve been looking for a nice low hour pair of SCXs, don treally need the -4s but I will check them out.

drpete3 03-12-2014 12:21 PM


Originally Posted by Quinlan (Post 4088108)
Ran all last year without missing a beat!

What kinds power you putting thru them? How much speed loss did you see and since they are -2 did you porp shaft height change?

Quinlan 03-17-2014 08:14 AM

Right at 750 hp. I have Stellings and I installed 1" spacer to lower a little.
I might have lost 2 to 3 but Top End is Not my pursuit. ALL summer NO issues IS.

Totally satisfied. Well except for the Hinge pins screws--- Note to Self- Check tq regularly!!!!.

A Catz Bark 03-18-2014 10:21 PM


Originally Posted by skydog (Post 4086389)
Was going to get one for my 27 Daytona but guys with same boat losing 15-20 mph!!!?????? Not sure how thats posable but heard more than one..... sucks!!!!

This is very true... I am experiencing this right now with my boat. I repowered +300 hp and am running just a little faster than before with the SC. Frustrating for sure.

575cat 03-19-2014 07:18 AM

What prop,s are you using ? do you have a extension box ?

drpete3 03-19-2014 07:31 AM


Originally Posted by A Catz Bark (Post 4092143)
This is very true... I am experiencing this right now with my boat. I repowered +300 hp and am running just a little faster than before with the SC. Frustrating for sure.

were you -2 with your old drive?

A Catz Bark 03-19-2014 06:13 PM


Originally Posted by 575cat (Post 4092237)
What prop,s are you using ? do you have a extension box ?

No extension box and am using a stock bravo I 32p

A Catz Bark 03-19-2014 06:14 PM


Originally Posted by drpete3 (Post 4092248)
were you -2 with your old drive?

Yes, I had a -2 on it with a 1" spacer. tried a 1/2" spacer but lost bow lift and 2 mph, but the boat felt much looser.

Cobra100+ 03-19-2014 08:00 PM

Have you tried any 5 blade? Bravo 1 4 blade isnt a good surfacing prop.

575cat 03-19-2014 08:41 PM

i believe an extension box is in order , higher drive cleaner water & probably a maximus prop .

skydog 03-20-2014 02:16 PM

Man sucks bad! So sorry to hear of this again...........

pro27 03-28-2014 05:45 AM

http://www.speedboat.com/wp-content/...9.38.00-PM.png. I believe this is the new case with the piece added to the front of skeg.

drpete3 03-28-2014 09:03 AM

Im kind of confused on the new lowers. Did IMCO change them again? I just saw a post on Teagues fb page that said they were the first ones to get them and the post was March 24th.

pro27 03-28-2014 09:38 AM

Not sure if its changed or something they add if required by set up.Also that is the SCX4 gear case.

skydog 03-28-2014 04:28 PM

Yes anyone know if they are new/changed? If so is this because of huge speed lose in big hp single drive boats? After all I thought that was what the lowers where targeting....

pro27 03-28-2014 04:49 PM

Will let you know having mine done now was happy with it to start but looking for a little more, this is a brand new set up for me.

offshorexcursion 03-28-2014 06:41 PM

About a year ago they offered a standard SCX with a blunt nose lower or a pointed lower called the #13.

Now it looks like there is a new lower for the SCX-4 where the skeg angles up towards the nosecone more. I also think they have a version with a longer skeg which would help handling when the drive is mounted higher.

Very confusing though

All you need to remember Pete is you need a full SCX UPPER AND SCX LOWER to gain the reliability your looking for!

pro27 05-18-2014 05:53 PM

Took mine to 100mph today with more to go,very happy so far.Also very happy with IMCO and the way they worked with me. I am running the SCX4 with 5 blade merc clever.

1 MAIDEN AMERICA 05-19-2014 12:29 PM

Pro27
Did you have the old style "sharp nose", or the "blunt nose" and switch to the new style where the skeg runs up to the tip of the bullet?
Did you notice a difference?
Where is your propshaft in relation to the bottom? Even, below, above?
Thanks,
Rob

pro27 05-19-2014 05:17 PM

1 Attachment(s)

Originally Posted by 1 MAIDEN AMERICA (Post 4124543)
Pro27
Did you have the old style "sharp nose", or the "blunt nose" and switch to the new style where the skeg runs up to the tip of the bullet?
Did you notice a difference?
Where is your propshaft in relation to the bottom? Even, below, above?
Thanks
Rob

First let me just say I am running a SCX4 with #6 prop shaft 5blade merc clever,and has the new fin,running from skeg to bullet which is pointed[ATTACH=CONFIG]523594[/ATTACH] also single V bottom.

1 MAIDEN AMERICA 05-20-2014 10:47 AM


Originally Posted by pro27 (Post 4124693)
First let me just say I am running a SCX4 with #6 prop shaft 5blade merc clever,and has the new fin,running from skeg to bullet which is pointed[ATTACH=CONFIG]523594[/ATTACH] also single V bottom.

I was wondering if you tried the old style SCX before this newer design, and had comparisons. I have the sharp nose style and am contemplating going with this style if it truly performs better.

drpete3 05-20-2014 12:01 PM


Originally Posted by 1 MAIDEN AMERICA (Post 4125078)
I was wondering if you tried the old style SCX before this newer design, and had comparisons. I have the sharp nose style and am contemplating going with this style if it truly performs better.

In talking with imco the extended skeg is there to cut the water and to help keep the stern from lifting too much. Note it only has a small hole in the nose cone for water pick up. Not designed to cool the engines so plan on external water pick ups

1 MAIDEN AMERICA 05-20-2014 12:13 PM


Originally Posted by drpete3 (Post 4125120)
In talking with imco the extended skeg is there to cut the water and to help keep the stern from lifting too much. Note it only has a small hole in the nose cone for water pick up. Not designed to cool the engines so plan on external water pick ups

I have the -4's now and for craps and giggles I tried using the drive for water. Great pressure up to getting on plane and nothing after that so I kept with the external PU's. As far as the extended skeg that's what IMCO told me too. I just don't want to be another guinea pig on the new style so I'd like to hear about actual performance changes from one lower to the other.


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