And the next prop I should try is???

**derpid** · 07-11-2016, 01:08 AM

Ok so, my boat is a 188 spyder (it's 19.2ft bow to stern) pad vee style hull, running an e-tec 225HO with a 10" set back and 22p 3 blade raker. With this I'm running 62mph @ 5800rpm with room to jack up still(I loose speed if I go higher) This weekend I tried a 24p and a 25p in hope of gaining and I did not. I get a more stable 62mph on the 24p and I can't run my jack any higher without loosing speed. I'm wondering if I may be at a point where the only benefits I see are with a cleaver or a chopper. Now I know that one provides stern lift and one provides bow lift, but I also came across the ET as well. I need some input on what I should be testing next and what I should be expecting. Things like thru hub or over hub exhaust are above what I know. Am I maxed out at 62? Or can I find my way to 70 with prop magic??? Help please.

**Dave Strong** · 07-11-2016, 01:33 AM

If you can't go higher you need more diameter, pitch won't help if the diameter is to small.

Dave

**derpid** · 07-11-2016, 10:37 AM

All the props I tested with are 14 1/2" but I'm sure bigger shouldn't be a problem. But should I expect to see any different results in testing a cleaver or a chopper? 4 blade or 3?

**derpid** · 07-12-2016, 11:11 AM

After countless hours on google and reading other forums, learning the lingo, the science, the physics and what does what, I have one question I would like all your input on..... Is there any time a cleaver is beneficial on a vee style hull? The general consensus is that they work best on hulls with "natural bow lift." And have limited applications on vee hulls. I would like to know if anyone has had it work on a vee hull and what they saw.

**outasite** · 07-12-2016, 11:54 AM

IMO cleavers are great for light Vs with as you said natural bow lift. I feel the best use is for all out top end runs.If you could find a good 26/28 off shore cut chopper with some tip cup to try, it may help.

**derpid** · 07-12-2016, 12:22 PM

the boat is not light compared to most speedy hulls, weighs roughly 2100lbs. Given what I've read a cleaver would theoretically not be the best choice. But may be worth a spin. If it were easier for me to grab and test I would, but the closest shop with a loaner program and good selection is 3.5 hours away so I'd like some input to get a good idea of what to be trying next. Props like a BRAVO 1 XC, RX-4, or intimidator quad 4 seem to have what I should be testing next if I can get ahold of them. But when the distance is a factor I don't want to drive or ship props more often than I need to.

**vnemous** · 07-12-2016, 12:56 PM

I ran a 22p 4 blade cleaver on a 21 challenger with a 200 2.4 and loved the prop. Has to be surfaced and it picked the whole boat up and made it run very light for a heavy layup. JMO

**derpid** · 07-12-2016, 01:44 PM

Vnemous were you running a standard cleaver or a through hub style?

**Dave Strong** · 07-12-2016, 02:07 PM

The thing with props is you just won't know unless you try.

Dave

**derpid** · 07-12-2016, 02:21 PM

I know you're right Dave, and I wish it wasn't so true. But i am a person who likes to have lots of info on hand.

**Magcat 62** · 07-20-2016, 05:58 PM

Originally Posted by derpid

Ok so, my boat is a 188 spyder (it's 19.2ft bow to stern) pad vee style hull, running an e-tec 225HO with a 10" set back and 22p 3 blade raker. With this I'm running 62mph @ 5800rpm with room to jack up still(I loose speed if I go higher) This weekend I tried a 24p and a 25p in hope of gaining and I did not. I get a more stable 62mph on the 24p and I can't run my jack any higher without loosing speed. I'm wondering if I may be at a point where the only benefits I see are with a cleaver or a chopper. Now I know that one provides stern lift and one provides bow lift, but I also came across the ET as well. I need some input on what I should be testing next and what I should be expecting. Things like thru hub or over hub exhaust are above what I know. Am I maxed out at 62? Or can I find my way to 70 with prop magic??? Help please.

8 mph is not easy it took me 70 hp for 9 more mph IMO over the hub pure top end only way to go just MO