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Labbing 25p mirages

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Old 01-27-2002 | 11:25 AM
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Post Labbing 25p mirages

I'd like to gain more speed by getting my props labbed. They are 25P mirages pushed by twin 454 mags (1.5 geared bravo 1) on a 6500 lbs 30' scarab. These props let the engines rev to 5000rpm, just where I prefer. Most threads I've read on labbing say to expect an additional 200-400 rpm with labbing. Therefore to stay in the 5000rpm range, I would need 27 pitch props labbed? Sound right? Do you think I could have my 25p props re-pitched to the 27 during labbing? Any advise would be great.

BT
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Old 01-27-2002 | 11:51 AM
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blue thunder,
I have the same exact problem. I would like to get my 25P Mirage Plus 3-blades labbed but they already push my 454 Mags to about 4,950 rpm's. I talked to York Propellers who suggested I move to labbed 26P Bravo I 4-blades. That's nice, however I don't want to spend that sort of cash. If we could get these props up a pitch or two and labbed that would be the best scenario. Let me know what you find out?
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Old 01-27-2002 | 01:56 PM
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Advantage... I'm sure we could repitch to 26, but unsure about 27. Did they give you a estimated cost on the setup they recommended? What are you running for boat?

BT
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Old 01-27-2002 | 02:20 PM
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From: GERMANY Aschaffenburg
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Hallo Blue Thunder,

I have the same problem !!
Scarab 28XLT but 7000 lbs !!!
twin 454 mags (Bravo I 1,5)
max 4800 RPM ????
Mirage 25 not Mirage Plus

Im looking vor more RPM and speed.
Have a set off 26 Bravo One max RPM 4400 too testet !!

Mit freundlichem Gruß

Michael F GERMANY
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Old 01-27-2002 | 04:17 PM
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Don't go with the 4 blade prop unless you have problems with blowout on turns or getting onto plane. The 4 blade prop will be 2 to 3 mph slower than a 3 blader. I have heard that it isn't wise to repitch a prop because it will tend to return to the original pitch. The labbed 27 should turn about the same rpm as the 25's you have now. I run labbed 26 bravo 1's at 5400 rpm on a 34 scarab.
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Old 01-28-2002 | 08:39 AM
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You can get them repitched to 26's, but I dont think 27's. I had 23's repitched to 24's. The difference....2-3 mph gain, with no rpm gain. When you go up 1 pitch, you lose 200 rpms, when you lab, you usually gain that back.

J
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Old 01-28-2002 | 09:41 AM
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blue thunder, I run a 1999 29' Baja Outlaw with twin 454 Mags. I would be very interested in moving up to a 26 pitch labbed 3-blade Mirage Plus. Have you found out any additional information? Chad Hill or York Propellers will probably be our best most inexpensive option.
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Old 01-28-2002 | 07:05 PM
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Advantage... I haven't learned anything more. I was thinking about buying the set of 25p mirages in the classifieds and getting them labbed. That way I could alway go back the the 25 mirages I currently run. Sounds like it would be best for us to find 26s or 27s and have them labbed. Anyone have anything available?

BT
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Old 01-28-2002 | 07:37 PM
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There is o post in the prop section from chad hill offering to lab for a 100$. I'mm sure he would help you out on any info you need!
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Old 01-28-2002 | 07:37 PM
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blue thunder, are you not comfortable with re-pitching your 25's to 26's with a lab job? Have you talked with any professionals who advise you to buy a second set of 25's? Thanks for the information.
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