dropping a procharger on my 502 EFI -- boat is a 99 spinning a 25p mirage now.

what prop do you think i'll need with the extra 150HP ??? what speeds should I be able to get?

right now with my 25p i'm hitting the rev limiter at 5100 and get about 72 on the speedo (non GPS)

should have the procharger installed in about 3 weeks and want to get some test props lined up.

thoughts?

Speedo is most likely 6 mph off. I would not put a supercharger on any black engine. Save your money and put in a hp motor
if it's more speed you want without the headaches.

I have a procharger (M1) on my 502. My prop is a 30. I splashed yesterday. I'm a newbie to perfomance boats but had mine doing 55 and I backed off, a friend of mine who was with me had it up to 70 at 4200. There might have been another 10 MPH in it, had we cranked it up to 5000

supurised your running a 3 blade? I have a 26p Bravo on mine, I would think a 28-30 bravo would be a good start?

I have a upgraded 509 om my 260 and it is pushing 550 hp It has a 25 pitch 4 bladed merc prop and pushes it well. 5200 rpm its running around 78 mph. All around it rocks out..

i'm just running the prop that came on it. I really never thought it was the "right" prop -- simply because i could hit the rev limiter so easy.

procharger was picked up saturday -- should install in a few weeks.

that brings up the question - what did the factory use for a "stock" prop?

well -- i've obviously killed a few brain cells since i last looked at my prop - i was WAY off...

its a MR Bravo 1 24p.....

that is the stock prop,

any update?

had to send "that" procharger back -- it was missing too many pieces. Ordered a new on and got it last wednesday. I did a lot of the install work over the weekend. Moving the oil cooler and stuff like that. what a PITA....

should have it done in the next week or so.