Posted: Fri Mar 09, 2012 6:42 pm Post subject: Re:
P.P.B.C. wrote:
Spot on Dave the reason the manufactor states a MAX rpm is because that is where the motor will produce its max power. Yes the motor can rev higher but it cant be good for it. BTW just my opinion before JG jumps all over me again. Cheers Phil.
Why if it's under load
Furthermore rev limitors wont allow what you think to happen
Mine was the 1st post in this thread & was based on what my motors achieve _________________ **************************
Save The Fish, Eat a Pussy Cat
JG what does MAX RPM, MAX HP, MAX mean to you?????? TO me it means MAX. But your right rev limiters are there just in case you would like to rev your motors to 6000 and per like kittens because i dont ask questions because i dont need to because i know everything and oh yeh i have three boats that did i tell you they perrrr like kittens. Have a read at your comments to me and others and know this we dont laugh with you but at you genius. Cheers Phil. _________________ www.portphillipboatingcentre.com.au
Posted: Fri Mar 09, 2012 9:22 pm Post subject: Re:
P.P.B.C. wrote:
JG what does MAX RPM, MAX HP, MAX mean to you?????? TO me it means MAX. But your right rev limiters are there just in case you would like to rev your motors to 6000 and per like kittens because i dont ask questions because i dont need to because i know everything and oh yeh i have three boats that did i tell you they perrrr like kittens. Have a read at your comments to me and others and know this we dont laugh with you but at you genius. Cheers Phil.
You still haven't asked my Q
Instead you try throwing them back @ me
You're supposed to be whatever you are dealer mech
I'm none of those but i seem to ask the Q's that ruffle the noses of you so called experts _________________ **************************
Save The Fish, Eat a Pussy Cat
Posted: Sat Mar 10, 2012 9:02 am Post subject: Re:
JayyyyGee wrote:
Quote:
I say your over reving because you are suggesting to run a prop that will allow engine to rev far in excess of manufacturers stated max rev's
Whoooooo !
If you're talking my rigs then i'm not over reving
If you're talking Andy's unc's motor has reached no where near it's rev range besides motors these days have got built in rev limitors which wont allow them to exceed
Again ref to Andy's uncs motor
Twas an unfair comparisment after re-proping he gained 300 rpm but bear in mind he was i person less on the boat so was full rev increase due to prop'n down or combo of that & less load on motor
Tis why i asked him to get unc to do a solo run & note revs.
As far as my rigs go i prop down , not for rev increase BUT for Bite most of my fishing is done offshore not on flat water.
I was not making any comment on your boats bar pointing out that they probably have different max rev point that andys unc's.
Your initial comment
Quote:
Should be pulling 6000 rpm
is the reason I am suggesting you are off the mark.
Ring any engine manufacturer and ask them if it is ok to have the engine reving at 500 rpm more than the max revs.
Most of what you have said since then has made some sense and I under stand what you are saying about how your boats are propped but all that is irrelevant to the original question and answer by you.
You are now stating that engines have rev limiters and wont go over max revs so why would you prop a boat so low that the rev limiter is cutting in well before full throttle, you are just reving a lot harder for no reason.
Quote:
Mine was the 1st post in this thread & was based on what my motors achieve
He didn't ask about merc or yammy four strokes did he, maybe you did not notice what motor he stated but your answer was very misleading given you did not note your very different situation and set up.
rockcod i also came back & corrected what i said in my opening post i was not well when i posted that & it was a hurried reply whilst i was in a bit of pain.
Sometimes what we mean to say dosen't allways come out the way we intend in a post
As far as motors go whether 2 or 4 strokes there's no difference they'll rev the same if it's in their range except diesels which have a much lower rev range.
My yammy 2 stroke revs around the 5800 mark did have a issue with it once could only get 4500 on it sorted it out quick smart when realised booboo linkage on upside down.
But if a motor can rev out to a higher spec than indicated by manufacturer then i cant see see prob with that after all manufacturers will cover themselves by keeping a safefigure on their specs & like i said newer motors are govern'd by rev limiters so it's pretty hard to to step the line.
I see peeps continually @ boat ramp reving their motors in nutral in a bid to warm them up
Those people are risking doing more damage than those over steping a few hundred revs when motor is under load _________________ **************************
Save The Fish, Eat a Pussy Cat
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Cheers Phil.
