opinions please, 60hp on avon 4metre

ollyit · 20 October 2003, 12:13

afternoon,

Possibly got a chance of getting a 60hp outboard for £500, is this going to be a bit silly on my 4m avon searider, as I think its only rated to 50hp max??

Thanks in advance,

Olly

DM · 20 October 2003, 12:56

The difference between a 50 and a 60 is only two lawn mowers. My last SR4 had a 70hp on it and was the 'funnest' boat I've ever owned except once when the throttle stuck open.

Waahaay factor = 10/10

DM

simmons0 · 20 October 2003, 14:11

it will be massively overpowered and probly a mile over the maximum engine weight too.

The boat will be awfull. over the max hp makes for fun...but over the weight limit means it won't ride right, won't turn right and in the wrong hands potentially dangerous.

Mosser · 20 October 2003, 14:46

In many cases, the only difference between a 50hp and 60hp engine is the size of the fuel jet within the carb. Chances are (depending on the model, manf.), the 60hp block may be identical to it's smaller hp brother.

Might be worth checking out...

Bilge Rat · 20 October 2003, 14:56

Have to agree with Mosser, its probably the same size block with different bore linnings, it wont effect the weight much, bore out a 50hp and makes it nearer to a 60hp.

should be fun and hey if you decide not to go with the 60hp give me a call as i'll take it of your hands and throw an extra bit your way for your trouble as i need a new engine at the moment.

Richard

Petrov · 20 October 2003, 15:40

even if you have the same weight of engine you will probably have higher speed, wich means that the boat can be unstabil in higher speeds, a good prop can make the boat go even better, i have a Osprey Viper max 5,8m with a Yamaha 150hp FETOL and i logged 49 knots with it and than it was very unstabil, i changed prop to a mercury high five, pitch 21 and boat was much more stabil in higher speeds.

Regards

Petrov

thewavehumper · 20 October 2003, 15:43

I'd go for it they build Avons strongly and you can allways use the throttle gently to be kind to the transom

ribraff · 20 October 2003, 16:17

I've just got hold of a 4m sea-rider with a 50 on it and it's lethal!!! They tend to chine ride quite badly anyway but moving the engine on the transom can help. I can't imagine what its like with a 60!!!

wavelength · 20 October 2003, 22:27

We sold our 4m searider this year - big mistake as it was a brill boat with a 50 yammie on it- absolutely no poblems with chine walking -ever- and very quick. used it for ski-ing wakeboarding training etc in all sorts of weather. So if the weight difference is small it should be worth a go

Phil Davies · 21 October 2003, 12:10

[QUOTE]Originally posted by davidmanning
[B] My last SR4 had a 70hp on it

Yes, Dave, but one should point out that, as a retired paramedic, you would have been well equipped to stem the flow of blood and apply the necessary splints had you lost control of your massively overpowered Searider!

thewavehumper · 21 October 2003, 12:15

You can get through the chine walking on an Avon, it just takes a bit of belief and feel for the boat.

chrisallse · 21 October 2003, 12:38

Engine weight should not be a problem a 60hp 4 stroke mariner weighs the same as a 50hp and only 321b more than the 40hp.

You dont have to use it flat out, go as fast as you feel safe.

DM · 21 October 2003, 15:41

Quote:

Originally posted by Phil Davies
had you lost control of your massively overpowered Searider!

Thanks Phil, but an easier method would have been to put your massively oversized anchor in the boat to slow it down

Did you pinch it from QE2.

DM

ollyit · 21 October 2003, 16:02

thanks for advice guys, im very new to this site -

i have got a lot of factors to weigh up now ... hmmm

= ill keep u all posted and shove sum pics up soon of the little beast in question

regards

olly