‘92 184 Jackplate Questions

[Nowakb]

I’m looking to add a jackplate to my 1992 184 Champion. The motor has badging for a 175 Mariner 2.5 XRi, but when I took off the cowling it looks to be a 200 2.5xri.

it looks like consensus is a 6” Rapid magnum Jack Plate, but any advice regarding tuck angle or for prop would be welcomed too!

[tj]

65 GPS @ 5600 driver only

1985 dual console F/S 184 (purchased in 1989)
1997 Mercury 175 EFI (5000-5600 max RPM at full throttle, 97 brochure)
1997 Tempest A45 25P, flat trim tab zinc anode (prop would hit regular trim tab anode)
2003 CMC ML-65 jack plate (5.5"), 3.78-inch PTP (optimum setting ???)
~ 20 gal gas tank
Oil tank & 3-bank charger in bilge area
two 27-series deep cycle; 24-series start (all lead acid)
older 24V MotorGuide
1 MFD on bow, 2 MFD on console

Never heard of tuck angle

Who knows affect from Lithium batteries, multiple bow MFDs, and a heavy trolling motor. https://www.bbcboards.net/showthread.php?t=1248498

[MMosher]

6-8 is fine. None is fine on that hull as well.

[Nowakb]

Thank you both for your help

[tj]

Boat dealer mechanic who used to work for a Champion dealer told me Tempest A45 25P is what I needed for my new 1997 EFI on my Champ. Mechanic lake tested prop (dealer was 100 yards from boat ramp). I didn't have a jack plate until 2003. Already finished the new motor break-in procedure with an old prop before this new prop purchase.