quicksilver 21p lazer 2 prop in stainless

Hugh Jardon · 15 May 2006, 11:55

Does anyone have a 21pitch lazer 2 that will fit an opti 200. I am thinking of getting one to compare how it performs against my 23 pitch. I wanted to borrow one first if i can to see what difference it makes but if you have one for sale then i would be happy to buy it if the price is right.

for borrowing one i can pick it up or pay postage etc

drop me a pm if you can help, thanks

Alice · 15 May 2006, 13:28

You're over-propped at 23". Who's idea was it to put that on there? I'd buy a 21" and maybe keep the 23" for distance work. My Merc inboard @ 260hp and buckets of torque struggled with a 23" on a boat that wasn't overly heavy. The Laser 2 above 150hp and 22ft is really designed for inboard installations, Perhaps you could look at the QS Vengeance (which I run) which is more of a big HP outboard prop.

Hugh Jardon · 15 May 2006, 13:41

I have been running in so far so not really been able to see if the 23 would be the best option, i was happy to pull a higher prop for longer distance cruising but to be honest i want one of each so can switch depending on what we are doing. I will check the economy and rev and midrange and holeshot and top speed on a 21 compared to mine. Ideal situation would be to buy a second hand 21 as i would like to have a spare prop anyway. 21/23 was the recommendation with the 23 as propbably ok. we will see, as it is always a bit of trial and error. we are comfortably doing 52/53 mph currently without the opportunity to play much as we only had one calm opportunity in the dark! so wanted to take care really

Quote:

Originally Posted by Alice

You're over-propped at 23". Who's idea was it to put that on there? I'd buy a 21" and maybe keep the 23" for distance work. My Merc inboard @ 260hp and buckets of torque struggled with a 23" on a boat that wasn't overly heavy.

Alice · 15 May 2006, 13:57

I've got a Laser 2 21" here at the mo.

Which i'll gladly chuck on yours when you're down. I'm doing the same but a pitch lower, running 19" and 21". Roy runs a 21" and is a navvy quicker than me, he reckons that his pull-out is perfect. So with a few more gee gees the 21" might be all that I need.

Rodan · 15 May 2006, 16:02

I have a LII 21P. was interested to see what a 23 would do. if you are in the solent could always try a test swap!

Hugh Jardon · 15 May 2006, 16:11

Quote:

Originally Posted by Rodan

I have a LII 21P. was interested to see what a 23 would do. if you are in the solent could always try a test swap!

dropped you a pm on this, thanks for the reply

Charles · 15 May 2006, 18:28

Quote:

Originally Posted by Rodan

I have a LII 21P. was interested to see what a 23 would do. if you are in the solent could always try a test swap!

Although I have a twin set-up I was interested to talk props to the THE man at Barrus. It was refreshing to listen to his recommendation to stick with what I had - Laser 2 21P on 225hp Opti's. By re-propping to a 23P he reckoned I would lose revs and speed. Out the 'hole' would be better but you would lose performance from mid to upper range revs. He also put me off Hi-5's completely and said this was 'old hat'. Again, the immediate response on throttling up would be better, but once cruising upwards of 24 knts the two extra blades would completely negate any performance improvement as they would act as extra drag through the water; a loss of speed and revs would be the result. What really impressed me was the fact that he admitted he would happily take my money for a couple of £600 props but preferred to give me good advice and rather spend my money on fuel.

FreeTrader · 15 May 2006, 20:03

Don't agree high 5 is old hat. We've seen a significant boost in mid-range performance, can cruise at 36 knots at 4750 rpm. Saving stacks of fuel.

We've lost a bit of acceleration, but overall the boat has more grip, and I'd certainly not go back.

TIM · 15 May 2006, 23:15

100% agree wih free trade.....high five transformed our boat with grip, and incresed crusing speed and the same top speed.... and we droped from a 21" laser 11 to a 19" high five.

Alice · 16 May 2006, 07:49

Quote:

Originally Posted by TIM

100% agree wih free trade.....high five transformed our boat with grip, and incresed crusing speed and the same top speed.... and we droped from a 21" laser 11 to a 19" high five.

That's maybe because your previous prop was totally wrong for the boat. I'm with Mr Barrus (what does he know anyway

), Hi 5's are gimmiky old things just like the variable pitch stuff that was around for a while, in my opinion.

Charles · 16 May 2006, 09:03

Quote:

Originally Posted by Alice

That's maybe because your previous prop was totally wrong for the boat. I'm with Mr Barrus (what does he know anyway

), Hi 5's are gimmiky old things just like the variable pitch stuff that was around for a while, in my opinion.

That's what the man said, yeh, what does Barrus prop expert know anyway?

ADS · 16 May 2006, 10:13

Quote:

Originally Posted by FreeTrader

Don't agree high 5 is old hat. We've seen a significant boost in mid-range performance, can cruise at 36 knots at 4750 rpm. Saving stacks of fuel.

We've lost a bit of acceleration, but overall the boat has more grip, and I'd certainly not go back.

I may be wrong here, but I thought a high 5 is an increased number of blades, therefore will improve acceleration, but you are likely to loose top end as a 5 bladed is less efficient than a 3 bladed prop.

Alice · 16 May 2006, 10:29

Quote:

Originally Posted by ADS

I may be wrong here, but I thought a high 5 is an increased number of blades, therefore will improve acceleration, but you are likely to loose top end as a 5 bladed is less efficient than a 3 bladed prop.

Yep, so did I. D'ya reckon they've got it on back to front?!!

ADS · 16 May 2006, 10:34

Quote:

Originally Posted by Alice

Yep, so did I. D'ya reckon they've got it on back to front?!!

Well, I don't pretend to know much about this prop business, just bits of info I have picked up from chatting to mates in the trade. I have always thought high 5s were for pulling skiers or wake boarders out the water, designed for acceleration.

jwalker · 16 May 2006, 10:37

Quote:

Originally Posted by Alice

Hi 5's are gimmiky old things just like the variable pitch stuff that was around for a while, in my opinion.

Have you tried all these gimmicky old things, Alice?

Alice · 16 May 2006, 11:09

Quote:

Originally Posted by jwalker

Have you tried all these gimmicky old things, Alice?

Yep, tried 'em all over the years. Even made my own out of washing machine parts! Sorry, Yes, I have run a few inc. 5 bladers and variable pitch and found that the 'right' SS 3 blade prop gave the best allround performance. Getting it 'right' is not so easy though.

Charles · 16 May 2006, 12:26

When all things are said and done, you have to analyse your APPLICATION!
If you are doing a fair bit of skiing, a bit of trolling whilst fishing, long range cruising and possibly hooning around at great speeds, you want a prop to cover all these applications. As far as the Hi5 is concerned, it IS good for skiing, but I seriously doubt it is any good for long range cruising where you are sitting in the mid to upper range band. I really do not believe otherwise as I have these props on 2 boats and this is my experience, backed up by Barrus. Props are a black science and you can spend an awful lot of money getting it very wrong. Stick to what you have, 3 more knots at the top end spending a fortune is senseless!

BTW, Andre, if you are there, what props were you running on the twin Opti's?

TIM · 17 May 2006, 00:02

Quote:

Originally Posted by Alice

That's maybe because your previous prop was totally wrong for the boat. I'm with Mr Barrus (what does he know anyway

), Hi 5's are gimmiky old things just like the variable pitch stuff that was around for a while, in my opinion.

Yeah you could be right there!!!!! so there ia a posiblity the High 5 is the right one...!!!!

or is every prop that is not 3 bladed , a waste of time in your expert opinion???

ever varedo i have seen has a four blade prop on...... any opinions????

Hugh Jardon · 17 May 2006, 09:12

any way back to the original thread after all this exciting stuff about 4 and 5 bladed props and who has and has not tried them

if you have a lazer 2 21 pitch then let me know as would like to buy it or perhaps borrow to try if possible, i have a kind offer to try one in two weeks time in cornwall which is great but i am looking to buy one anyway second hand if possible

if you have a revolution 4 or 5 star or other prop i should try then just say and would give them a go. my understanding is the 4 bladers are good for better top end!

if you have a 21 and want a 23 and i have a 23 and your 21 works best on mine etc then would be happy to swap if the 21 was better for me allround. so that is another option. otherwise i want to get one as a spare and to try.

i am looking to pick up a 19 as well as cant have too many props!

ta

Alice · 17 May 2006, 13:30

Quote:

Originally Posted by TIM

Yeah you could be right there!!!!! so there ia a posiblity the High 5 is the right one...!!!!

or is every prop that is not 3 bladed , a waste of time in your expert opinion???

ever varedo i have seen has a four blade prop on...... any opinions????

In my expert opinion........... 'F' knows!!