Jamsf1984

Hi i have 555bbc in a 25 outlaw it has afr 305 cnc heads, comp 240/248, 600/650 lift, the hp500 dart intake and a quick fuel 1000cfm 4150 setup with gil exhaust, i was wondering what you guys thought for more power if intake, headers, and carb are worth some gooh hp thanks

SB

iTrader: (1)

Carb should be fine.

Real headers (Eickerts ore one's with similar dimensions) with approx 18" long total tail length could/should be worth 30+hp on your set up. Maybe a tad more

MiscL
Make sure fuel psi stays at 5psi or more at WOT and top rpm
Raise your hatch just a few inches at OT and see if speed picks up..
Make sure your bottom is clean
Make sure your prop has no dings or etc
etc'
etc
etc
etc

SecondWind

Swap your HP 500 intake and Quickfuel 4150 setup for this. That should wake up the motor a bit.

2 871 Blowers with intakes

Jamsf1984

Yes those intakes look good bit im up at 10to1 so blowers would be tough lol, ive had a lot of people saying the hp500 single plane sucks as well is there any info on that

Baja Rooster

iTrader: (1)

Jamsf1984

I have not pit it on a wideband its a 1000 quick fuel 4150, lots of debates on whether or nor to put a dominator on it, right now the boat runs 73ish depends on the day i thinking i have like 88p, i will look where did u end up for jetting

Jamsf1984

Was wanting to make close to 700hp, the boat seems to run pretty good its spinning about 5400rpm the prop says its a 25pitch mirage plus but have not had it looked at too see if thats what it is, id like to get close to 80mph thanks for all the help!!

SecondWind

Spin the blower slow and you're good. With a new prop you'll blow past 80mph.

SecondWind

You can add this stuff to your fuel tank if you're worried about detonation.

https://boostane.com/

Jamsf1984

A blower would be sweet!!! im gonna push what i can with this setup, any thoughts on intake upgrades or leave it alone, and maybe some jetting ideas for your boats