View Full Version : 27 Daytona Prop



Cat-n-Around
07-22-2008, 12:38 PM
Has anyone tried a Herings 5 blade on a 27 Daytona? Ive got a 07 with a 850hp blower motor, thinking about trying one just curious if anyone had and what results they had gotten.

blaniac
08-28-2008, 12:37 AM
What speed are you seeing with 850HP in your 27 Daytona ?!?

Adrenaline Junkie
08-28-2008, 09:11 AM
Has anyone tried a Herings 5 blade on a 27 Daytona? Ive got a 07 with a 850hp blower motor, thinking about trying one just curious if anyone had and what results they had gotten.

If you have a bravo style drive, I'd be real careful about running a 5 blade prop - especially on a single screw. That is a ton of torque with not much slip...It will probably give you better mid-range and better top end, but it may be at the expense of accelerating the demise of your bravo.

If you're running a six, nxt or something a bit more hearty than an XR design - rock on.

Just my 2 cents.

turbo94gto
08-28-2008, 07:01 PM
what drive and prop are you runing now? is it a shortie if so how short? I want a roost like yours

fastlane40
08-29-2008, 08:05 AM
I ran a labbed 33 Maximus and stock 32 Maximus.Didn't like them,felt bogged down.The best setup is 34 stock Bravo,2" shorty,propshaft level with the lowest point of the sponsons.890hp blower motor,1:27 lower.This felt the best,remembering i race it.Trouble with it is i was 103 and on the limiter @ 5800 with a fair bit left.Tried going down 1 1/2" but didn't like it.Now have a 1/2" spacer,still with the 34,on the limiter @ 106.Racing again in 3 weeks and going to practice with a 36 Bravo.XR and shorty have been great.Last race for the Eliminator though,into another boat.Hope this helps.

Cat-n-Around
09-02-2008, 07:45 PM
what drive and prop are you runing now? is it a shortie if so how short? I want a roost like yours

The pic is of my old 28 Daytona. I wish my 27 threw that kind of a roost, lol.

Cat-n-Around
09-02-2008, 07:49 PM
I ran a labbed 33 Maximus and stock 32 Maximus.Didn't like them,felt bogged down.The best setup is 34 stock Bravo,2" shorty,propshaft level with the lowest point of the sponsons.890hp blower motor,1:27 lower.This felt the best,remembering i race it.Trouble with it is i was 103 and on the limiter @ 5800 with a fair bit left.Tried going down 1 1/2" but didn't like it.Now have a 1/2" spacer,still with the 34,on the limiter @ 106.Racing again in 3 weeks and going to practice with a 36 Bravo.XR and shorty have been great.Last race for the Eliminator though,into another boat.Hope this helps.

I have a 2" Shorty propshaft even with the bottom.

fastlane40
09-03-2008, 03:07 PM
I have a 2" Shorty propshaft even with the bottom.

How does it feel/run with that setup?What ratio and prop?

Cat-n-Around
09-03-2008, 08:15 PM
Feels good, diffenetly faster but it is a little hard to get on plan, I have to keep the rpms around 3000 and let it roll over. With the 1" shorty I didnt have any issues. Ratio is 1.35 and a IMCO SC, prop is a bravo-1 32 labbed.

Yellow_ICC_OK
09-04-2008, 11:09 AM
Running a 29 hydro 4 blade with a Bmax poker run. Boat seems to be setup perfect, but MIGHT use a little more top end. Currently at 116 mph with a 950 HP Beck motor. Cant get er to throw much of a roost though, lol....

fastlane40
09-05-2008, 02:15 AM
Cat, i had to make a stainless plate that bolts to the upper cav plate.Extends 5" past and 1" downturned on the sides.Can't get up without it.

Cat-n-Around
09-05-2008, 11:42 AM
The IMCO upper has the wide cav. plate I think this helps me alot. I had 5 people and 2 full ice chest in the boat and I got it up on plane but I couldnt let it get over 3200 rpms or it would blow the prop out. What size blower do you have?
Thanks for the info

fastlane40
09-05-2008, 05:18 PM
540/871.Dynoed @ 888hp.I tried to shorten my plate and had serious issues getting up.Went back to the full length and never a problem.I'll send a pic if you want.

Cat-n-Around
09-06-2008, 06:19 PM
I would like to see what u did.

fastlane40
09-10-2008, 07:25 AM
On my 27,propshaft 1/2" below the lowest point of the sponsons i can't get up without this.

Cat-n-Around
09-10-2008, 07:52 PM
Very cool. What size blower do you have? I have a 1071 on mine but Im looking to upgrade to a 1471 just dont know if it will fit under the hatch.

fastlane40
09-11-2008, 07:14 AM
I have an 871 running 6lb.