270 540 Build
 

Thinking of upgrading this coming winter and starting to plan things out. Anyone know of any 270's running big power packages?

no one running big power in a 257, 270, or 280?

There was guy that had a 26 listed with a 540. He stated it handled really well but I'm sure there's a bad walking issue and you have to drive your way through that. Would not be my choice of hulls for big power.

I'm running a 548/650hp in a 280 silencer.80 mph gps What do you need to know? Bob

How well does it handle, whats is your cruise speed like? Right now with my supporting mods my 270 is doing pretty good. I'm interested in getting more power so I can cruise at 60-65mph without needing to romp on the engine.

YEEEAHHH 1000POST!

At present I'm running a stock 28 B-1 prop.I like to cruise at 45-50,3700/3800 rpm is about 52 mph(water conditions,etc)After 65 you have to start to pay attention,after 70 you better get ready to drive the boat,after 75 you need to be sober.It can be exciting at 80.At 50 mph,I can play with my lady,drink a beer and listen to tunes.With 650hp and 680 ft lbs of tq at 3900 rpms,I squeeze it on and the gps climbs two to three mph at a time and you're doin 70.I love it.Bob

Nice setup, do you happen to have any pics? Currently I am running a modded 454 pushing 550hp and it's time to upgrade! I'm thinking 588CI hehe

The boat originally had a HP500 (blue engine)I sold that,kept all the fuel injection,CMIs and valve covers.I started with everything new(block,crank,etc)So it looks like the original HP.I could have use a larger cam but I was going for torque.It makes more TQ @ 3000 than the HP made.It's a 548.588 sounds good,too.What lower do you have?I started with a XZ.I was worried about breakage so I changed the gears to XR straight cut.So for,so good. Bob

I'm using an IMCO 2" shorty with the stock merc gears swapped out of my bravo 1. I got roughly about 5mph plus better stability. I HIGHLY suggest looking into your X dimension, raising it is the best thing you can do for the PQs.

5 mph!!!! Cool... thanks.Where is your prop shaft in relation to the bottom?