How to tell labbed prop or not
 

Here is a pick of my 28 pitch bravo. I need to order a prop and wanted to try a 26 or 27 bravo but I need to know if this is a standard prop or if it had been worked on. Need to gain about 500 rpm.
https://cimg5.ibsrv.net/gimg/www.off...bf53efdbf6.jpg
https://cimg9.ibsrv.net/gimg/www.off...0c896763dc.jpg
https://cimg0.ibsrv.net/gimg/www.off...1597939e09.jpg

A lot of places will stamp the hub under your castle washer if its been labbed. I can't tell in the pics. Bravo's only come in even pitch unless you order a factory Merc labbed one.
Dropping 2" in pitch will gain you about 400rpms.

Besides BBblades who else is good i can use? i have had no luck getting a call or email response, i'm sure they are very busy.

I am trying to learn as fast as possible so what i come up with is this,
Current prop appears to be a stock bravo 1 28 pitch. It is turning 4750 to 4800 rpm. I think a 27 pitch pro finish would be close to my 52-5400 rpm goal? I found a new one on ebay for 1000 bux.

HPManiac,

Buy it. Then sell me your 28P. I've been looking for a good used one for a year now. :cool::ernaehrung004:

Thanks. Brad.

I want to keep it but i would have no problem letting you try it if need be sir.

A update on that bad ass checkmate 251 i posted info on, i think i'm going to just buy it after talking to people that know about the boat. there has been almost 100k spent on the boat since 2018. i talked to a guy that has seen the boat do 102 mph with a different prop set up and light as can be. for 30k i'd be a fool not to buy it. The entire build has less than 20 hrs on it. I also saw the 10k receipt for the sound system lol.
Quick math.
24k to build a 598 BBC from scratch with parts used on this engine.
Teague drive upper and lower 18k
3800 k trim tabs 5k
cmi big tube headers 6 inch collector 9k.
sound system 10k.
Just that stuff is over 60k.

HPManiac,

I have a 28P now. I've been looking for a second one so I can have the one I've got touched up and labbed. I think I can break the 80 mark with a labbed and thinned 28P, pitched to 29". Just haven't been able to score a stock one.

FWIW, I've got a labbed 28P that might just be your ticket.. I'd be willing to let you try it if you want. It's collecting dust at the moment.

Labbed Bravo28 Prop

So, you're buying TWO boats....?

Thanks. Brad.

Brad, i ordered a prop from Brett, just talked to him. when i get it if it works out we can figure out something with my current 28 pitch prop.
I think yes i might buy the checkmate, and if i dont like the boat or its hard to drive i can sell it for more than i pd probably. The boat is incredible for a 1992 and the amount of money invested is crazy.

HPManiac,

All good. We can talk at a later date, when you've got your sitch sorted out.

I'm amazed you actually got Brett on the phone. I guess when you whip your checkbook out, he finds the time to actually talk. When I have questions (about a prop I am considering buying), I always get the "He's 200 phone calls behind in calling people back" routine.

Carry on.

Thanks. Brad.