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Personally, I cant afford big power. High maintainence, high fuel bills, high risk of breakin sh!t, and poor reliability........unless you use quality parts and a quality builder who stands behind his work. Makes all the difference IMO. Really kind of a waste though if your not using the power to its potential..... Example: I love Scots boat, but he would boat the same way with 600HP a side. Besides that,he would save gas, reliability, less maintainence, less worry... So when hes ready to unload those monsters, Ill trade him my 700's and ILL use those things to their potential! Man, am I slamming everone today?...PMS.

It speaks for itself, bet you thought we'd never find this Kev... hahah

Well, you're such a nautical nancy Kevin... hahaha

Payback's a ***** ;) yes it is...hah

Quote:

Originally Posted by Big Time (Post 3576213)

Ouch....

I'm really surpised that there were actually people who didn't at least throw him a bone.... if you can't afford to leave at least a little something, then you probably shouldn't go.

Ya I was always under the impression to at least roughly pay for yourself & your guests dinner plate. Then anymore youd like to give is a bonus.
Idk????

I am gonna buy Adams 525's:evilb:

Quote:

Originally Posted by 4195 (Post 3576236)

I am gonna buy Adams 525's:evilb:

Good luck...the price and availability is a secret. :party-smiley-004:

I haven't followed all of this, but just scanning over the last couple of posts...

Quote:

Originally Posted by 4195 (Post 3576167)

We came to the conclusion that we want higher cruising speeds, good mid range and decent top end while keeping reliability and low maintenance costs.

Haha, who doesn't want ALL of these things... See Pat's classic quote below!

Quote:

So here is the question for the big power guys why run the big HP power? Do you run top speed more often?

Kind of like asking why do you drive a car with more than 100 hp??? Hell, why do you have this type of boat to begin with??? Another classic quote "Because I can", haha!

Quote:

Are you looking for more torque? I know it was said yesterday that rpms kill motors not HP, but in order to run top speed you are at wot and high rpms.

I don't agree that only high rpm's kill engines, higher cylinder pressures/power levels certainly wear them more rapidly as well. That being said, if the power isn't being realized (not under extreme boost), it's not wearing the engine more rapidly, but when you are building max power it clearly does wear the engine more quickly. I'm personally not really looking for more torque, but with well over 1000 lbs-ft on tap (I haven't looked at my dyno sheets lately), that's probably more than enough as is. But at the end of the day it's really the torque that pushes you back in the seat and allows high cruise speeds (if propped correctly).

BTW, some people don't really have a good understanding of torque and how it relates to hp. If you're not certain, do a quick Google search and some reading...
http://www.google.com/search?q=torqu...w=1152&bih=719

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If you are out running those high HP motors at 3500 rpms is that lugging motor bad for it?

Not at all! I'd much rather run my engines at 3500 rpm with minimal boost than have to spin the crap out of them to maintain the same cruise speed... again assuming they are propped correctly. The only time I would really be concerned about lugging the engines would be under very high loads at very low rpm (say under 1200 rpm).

Quote:

Originally Posted by madhatter42 (Post 3576172)

Bigger power = higher cruise speed...

Your torque/hp numbers go up exponentially however this creates a new predicament. Just because you're running more boost, doesn't mean allot will change...

Big cubic inch gives more torque, for instance, 4000 for a 502 with a blower will make probably in the ball park of 550-600torque at cruise...a 600/632/588/98 will do with a blower, probably around 900torque....hp obviously following, this equates to more cruise speed at a lower rpm. It's not the top end, if you want to cruise fast, you have to over build, but take into consideration, more boost won't necessarily get you there, understand what your blocks are capable of and where your blower kicks in...be it roots or screw it all makes a variation.

Personally I like the acceleration and the ability to have endless power, so therefore building up is the way to go. I've always thought, find where you want to cruise, then figure your top end, add 10-15mph to that, that's what you build your motors to.

It's all about combination, propping etc. Torque is what makes cruise speed, not hp...look at the ilmors...they routinely run 5000+ but they run fine there, more hp than torque...wind em up they'll push the boat but it takes a minute to get there...

My boat runs fine at a cruise, but the hull difference , efficiency, it's a different setup, each setup is unique...if that sheds any light. The original Madhatter was fine @ cruise at 95-100....but the hp difference was drastic...I cruise now 70-80 no issue.....

It's not lugging the motor at 3500-4000...it is at 3k....in my opinion...

You want to let the block breathe, then the boost will do more, if the block is breathing it makes more hp naturally and the boost will go down...then your boost will make a larger difference if you have efficient heads etc.

REMEMBER THIS: FAST, CHEAP, RELIABLE
YOU GET TWO...YOU ONLY EVER GET 2...

if it's fast and cheap it's not reliable....
if it's reliable and cheap, it's not fast...
if it's reliable and fast, it aint cheap...

I can't say I agree 100% with everything Pat wrote (as written anyway), but I do agree with his first statement "Bigger power = higher cruise speed" and his last classic quote " FAST, CHEAP, RELIABLE
YOU GET TWO...YOU ONLY EVER GET 2"... both are certainly true.

Just my 2 cents.

It's spoken generally....I feel most of what I've said is accurate...

Quote:

Originally Posted by kreed (Post 3576214)

Yes and no. Let's use our last trip over to Greenport as an example. I hung back and let Rob take off once we left the river. We weren't running very harding to Plum Gut, but we did reel him in and passed him before getting there (he was running pretty good). There's no way we could have "cruised" at those speeds all the way over with 600 hp, especially with those 4 blade props. I don't recall what we were cruising at (maybe Mike does as he was on board), but it was nothing for my engines. I wouldn't have stressed a set of 600 hp mills for that long if that's what I had under the hatch. When Hugh met up with us in the other Skater we ran well over 100 for quite a while until we reached Claudios. I know for a fact 600's or even 700's wouldn't have done that... But it's nice to be able to push the higher speed when you feel like it.

Kev, the reason it seems like I'm always babying my boat is because I am typically AM when you were still in sight to see it. :drink:

You guys are forgetting a big part of the equation which is price of parts and initial purchase price of the motor itself. You can blow up a stock 454 every weekend of the summer and it will prolly cost less to run for the year than an annual freshen up on a pair of 1500's. I guess what I'm saying is that if you are one of the fortunate few to make it through a year running a very hi output motor, it will still cost more than the guy who blew up his little 454 five times.

That's a good point adam...