You shouldnt be hitting 5400 with the 27s on a 500hp boat. unless your props have had some work at some point. My boat will spin a set of 27s at 5000 during the summer and 5200 during the cool season. my 26s will turn 5300 to the limiter consistently which is right.


RAF

that is waht i thought too but wen we bought the boat they said they were true 600's......they are 502 blocks with 420 b&m blowers with 5 lbs. boost

That is some pretty good speeds for that power and a 38. Congrats
Ever try any 28ish or so Hydro's to see what happened?

well the 30 pitch bravo 1 props i am running now are putting me there at about 5400 rpm's .....thinking bout tryin some 29 pitch hydro 5 blades...:evilb:

Keep us posted... if it quits raining here, I am going to get some GPS speeds this weekend. There is another 35' with same set-up that is running 89.6mph. That's pretty stout. He was running labbed 28" Hydros.

i just got those hydro 5 blade 29 pitch yesterday and goin to try them wen i get then port motor bak toghether.....the last guy that had the boat burned up and impeller and didnt get alll the little rubber peices out the water system .......so i lost water pressure at the royal purple and ran hot .......took apart and the power steering cooler was completely clogged with sea weed and impeller parts so i flushed it all out with hoes and got all the peices of the impeller out .......still waiting for a new feul pump and will be back out on the water ........ will try the hydro's and will let you know the outcome :evilb:

Well yall wanted to be posted so here it is......with 5 blade 29 pitch hydro's i lost mid range and the was way loose .....it felt like there was no control... b/c it lifted the stern alot.....so might have gained top end but dont boat feels too lite to run them .....so goin bak to the 30's and or trying spinning the 5 blade 29's out instead of in