WHIPLASH

I have a 94 (straight hull) 32 Fever with 2001 500hp's. It came to me with 28 hydromotive Q-IV's. Rpm is lower than it should. I'd be interested to see what some of you are running in the same or similar, even the single step hulls. What kind of rpm's and speeds?

WHIPLASH

C'mon 32 Fever guys. I know you're out there!

Fenderjack

Running 3 blade 27' mirages currently. Stone stock 330 hp BBC's. can turn them 5k but they lay the bow over hard, have to trim to much to get it back out. Going to try some 25 mirage plus. Ran 72 with standard 25 mirages but it was turning to many r's. 92 fever

John jr

Checkmate283

1999 500EFI's bone stock. 27hydros.85-86 gps all day

WHIPLASH

What rpm's are you turning? I have 28 hydros and only turning 46-4750 r's.

SimonS32

99 32 w stock 502 MPI's 26 Hydros 4 blades 5,000 rpm high 70's speed. These props where factory installed.

Checkmate283

I'm turning 5300. Even with full load I'm getting 84

Lucky1456

Before I rebuilt mine they were 415 hp MPI 502s I have 27 four blade stern drivers she tuned 4800 and ran right at 76 MPH. My 32 Fever is at 98 single step hull. How many hour on your motors?? Have the manafolds been replaced or are they stock manifolds? I hate to tell you this but I went threw the same thing. I stepped my props down to 26s thinking I needed more RPMs. It turned out my manifolds were bad and were leaking water into my top end on both motors. It wasnt enough to see in the oil at that point. Look my thread on here and you will see what mine looked like after we figured out what was going on with them. My thread is tiled 500 EFIs built by Potter Performance. Mine isnt quite finished yet. My motors are back in the boat now and new manifolds are on. We are waiting for my new tail pipes to come in from Stainless Marine. Should be here this week. So at that point I will be trying to figure re proping at well. Let me know!

WHIPLASH

Were your manifolds the standard Merc iron ones? Mine are the Gil that they make for the HP500's. They are 2001's so they have the different valve springs and higher stainless riser pipes that Merc racing changed in 99 to help the weaker valve springs and stop reversion.
I don't know the hours on the motors as they are not original to the boat and the previous owner died. Coincidently the original owner is in my town but he doesn't remember how many hours were on the boat when he traded it in and had the blower motors he built in the 32 swapped in the 35 he bought and the new HP500's from the 35 put in my 32.

mikeyj08

Are the 27 hydros a 3 blade prop? I have a 99' 32 Fever with 500EFI's with 4 blade but I'm unsure of the pitch.