Daytona. Crash box running in reverse
#1
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Joined: May 2007
Posts: 240
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From: Mt Martha Australia
Have a question regarding Daytona crash gearbox
at present have crash gear box (FNR) in between TT 502 and parallel drive connected to ASD6
drive is setup to run RH 19 spline props
was wondering whether anyone has had has had experience with putting Daytona box in reverse to run LH prop?
i have selection of LH props with different pitches to the RH prop and thought about tested them
understand that some guys do this with bravo drive
just wondering whether the Daytona crash box would handle this?
at present have crash gear box (FNR) in between TT 502 and parallel drive connected to ASD6
drive is setup to run RH 19 spline props
was wondering whether anyone has had has had experience with putting Daytona box in reverse to run LH prop?
i have selection of LH props with different pitches to the RH prop and thought about tested them
understand that some guys do this with bravo drive
just wondering whether the Daytona crash box would handle this?
#2
It won't handle it. In forward it is straight through. In reverse there is a gear involved that is not designed for full power.
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Marc
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Marc
www.mercruiserparts.com
www.go-fast.com
www.bammarine.com
www.cyborgtransmissions.com
It's not alive -www.BoatStuffExpress.com - temporarily retired
#4
Have a question regarding Daytona crash gearbox
at present have crash gear box (FNR) in between TT 502 and parallel drive connected to ASD6
drive is setup to run RH 19 spline props
was wondering whether anyone has had has had experience with putting Daytona box in reverse to run LH prop?
i have selection of LH props with different pitches to the RH prop and thought about tested them
understand that some guys do this with bravo drive
just wondering whether the Daytona crash box would handle this?
at present have crash gear box (FNR) in between TT 502 and parallel drive connected to ASD6
drive is setup to run RH 19 spline props
was wondering whether anyone has had has had experience with putting Daytona box in reverse to run LH prop?
i have selection of LH props with different pitches to the RH prop and thought about tested them
understand that some guys do this with bravo drive
just wondering whether the Daytona crash box would handle this?
By default you have a LH rotation drive with an in line model. (your running a normal rotation GM based engine?)
The crash box, and most all of the crash's made, are not full time forward/reverse capable.
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Arneson Surface Drives www.arneson-industries.com
Arneson Surface Drives www.arneson-industries.com
#5
Thread Starter
Registered
Joined: May 2007
Posts: 240
Likes: 2
From: Mt Martha Australia
Yes conventional GM engine, bellhousing, gearbox, parallel drive, direct surface drive final prop RH
This is okder photo need to update as have the mounts all finished now

Older photo
This is okder photo need to update as have the mounts all finished now

Older photo
#7
Ok, I see the Casale changes your rotation.
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#8
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Joined: Jan 2014
Posts: 13
Likes: 0
From: Spokane, WA
Glad that someone else is dealing with a crashbox. Mine is inline to the arneson (BBC spinning LH rotation). I just ran it yesterday in reverse with a right hand prop. It ran fine. Only problem was it was kicking a little oil out the vent because the output gear is right below it (simple spur gears). I'm about to go to a z box like you have. I like your setup!
#10
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Joined: Jan 2014
Posts: 13
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From: Spokane, WA
I was going to do one on my scarab. This is a 29 Sanger alley cat that needs some work. The motor I have in it is around 450hp to a sp1000 drive. I made a bravo 2 prop hub fit it so I can run Merc props. And i just tried a 24x14.5 pitch small hub prop. I'm going to try a 20 or a 19 next. The low power and direct drive really kills it.



