Over 4 seasons on a XR upper and imco -2 lower with over 1000 hp on my 572 talldeck 10:71 blown bbc in my warlock. Drive is still on the boat with new owner.
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Originally Posted by Raylar
(Post 3488371)
With all due respect. In your second post you stated a +800HP blower engine in your boat with an XR Bravo Drive.
You are listening here but you are not HEARING! When you listen only and don't Hear you stop learning. Best Regards, Ray @ Raylar Thanks to all that responded so far! |
Originally Posted by Mastercraft240
(Post 3488092)
The IMCO SCX Extreme I thought was 23k new.
You are probably thinking of the Arnerson conversion, which is around $23k a side. |
I put a whole 2.5 hrs on my XR before it broke. but i threw a bravo on there that has 200+ hours and it's lasted no problem Go figure!!!!
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Originally Posted by sonic
(Post 3488079)
Mines black and the lower is not painted.It does look bad ass but it is a lot of cash..I was told to be easy on it because they do break..
I have not heard of a single SCX upper gearset failure so far. it may have happened, but it has not been posted on here. There have been guys running well over 1000hp through them for many hours without failure. Your 700hp isnt going to hurt it much unless you like getting air and bouncing it off the limiter before reentry. |
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Originally Posted by andychb
(Post 3488517)
And for $30k a side!!! for just the outdrive, they should look great.:lolhit: |
Originally Posted by Philm
(Post 3488524)
The X Power drive is now being produced by Strut.
And for $30k a side!!! for just the outdrive, they should look great.:lolhit: At the moment, I'd say the best overall alternative would be NXT's, followed by Konrad, and then Arneson. You simply cannot channel Top Fuel horsepower through Kia transmissions. |
FYI... XR's have a problem with the upper drivshaft. Not the gears themself. THe upper drivehaft "sits" in the niddle bearing. This bearing was changed some time ago to "more" spindles and smaller"..thus makes a grove into the driveshaft. It starts to "wobble" (even miniscule amount) and poof.
Older Bravos had niddle bearing with larger "spindles" (I'm not sure on this) but I think Imco and others use hardened or "stronger" upper drivshafts, and going back to the "larger" size spindled niddle bearing. Mercs. XR's has a bit better upper driveshaft then the STD Bravos. I think they have "some" hardening, but the niddle bearing (or is it called pin gear?)... still digs into them. The bad thing is that Merc. just won't admit it and comes up with all type of excuses for failures. Now.. I'm not saying this upper driveshaft is the case ALL the time... but waaaay too often. |
1 Attachment(s)
Originally Posted by andychb
(Post 3488517)
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