Scotty I need more power..sorry Captian thats all shes got...

[zell66]

Sorry had to

Need to know besides changing pro pitch is there anything I can do to my 4 cyl. Volvo aq125 to get more HP out of her? Or is what it is all she will be??

 

[gm280]

Re: Scotty I need more power..sorry Captian thats all shes got...

Sorry had to

Need to know besides changing pro pitch is there anything I can do to my 4 cyl. Volvo aq125 to get more HP out of her? Or is what it is all she will be??

How about installing a Flux Capacitor... :facepalm:

 

[zell66]

Re: Scotty I need more power..sorry Captian thats all shes got...

Funny...Funny but wrong movie lol

 

[JaseBosto]

Re: Scotty I need more power..sorry Captian thats all shes got...

I'd go with a quantum slipstream drive:lol:

 

[Bondo]

Re: Scotty I need more power..sorry Captian thats all shes got...

Ayuh,.... Pack more dilithium crystals into 'er...

Seriously, with those little motors, other than a good tune up, it is, what it is...

 

[zell66]

Re: Scotty I need more power..sorry Captian thats all shes got...

ok thanks....dilithium crystals are depleted.....

 

[Don S]

Re: Scotty I need more power..sorry Captian thats all shes got...

And changing the prop will not increase HP of your motor.

 

[JaseBosto]

Re: Scotty I need more power..sorry Captian thats all shes got...

Changing pitch to a lower would benefit your hole shot. Good for pulling but watch the rev's

 

[Don S]

Re: Scotty I need more power..sorry Captian thats all shes got...

Changing pitch to a lower would benefit your hole shot. Good for pulling but watch the rev's

Doesn't increase the HP now, does it? Besides, he has a thread going in the prop forum about props.

 

[JaseBosto]

Re: Scotty I need more power..sorry Captian thats all shes got...

of course not. I used to pitch lower for wake boarding but, that was a different boat...

 

[aerobat]

Re: Scotty I need more power..sorry Captian thats all shes got...

Need to know besides changing pro pitch is there anything I can do to my 4 cyl. Volvo aq125 to get more HP out of her? Or is what it is all she will be??

you can do several things to overall go faster. first you have to reduce weight. so put anything overboard, then drain the engine and gearoil for further weight reduction. make sure you boat naked, clothing weights a lot !

kick the throttle by feet or better sit down on the lever to make sure you give hard WOT and beat the s...t out of her !

seriously - when the engine is correctly set up you can not do anything else. that apllies to basicly any boat engine.

 

[gm280]

Re: Scotty I need more power..sorry Captian thats all shes got...

Funny...Funny but wrong movie lol

I know it was from a different movie. But I was trying to get you to 88 MPH, didn't know you wanted Warp speed... :thumb:

 

[dennis461]

Re: Scotty I need more power..sorry Captian thats all shes got...

Well, you could use race gasoline, but it's pretty expensive. I'm going to switch from regular to high-test this season.

 

[RogersJetboat454]

Re: Scotty I need more power..sorry Captian thats all shes got...

Well, you could use race gasoline, but it's pretty expensive. I'm going to switch from regular to high-test this season.

How is "race gasoline" or high octane fuel going to make any difference other than marginally making his wallet lighter?

High octane fuel doesn't make the engine more powerful. It's intended to be used in a high compression engine, which he doesn't have.

 

[matt167]

Re: Scotty I need more power..sorry Captian thats all shes got...

It can be done, but not cheap and it simply would not make sense. It would take finding the B21/B230 from a Turbocharged Volvo 240 series car ( 'avail '81-'84 IIRC ), then something like a Paxton centrifugal supercharger could be added along with the marine parts needed, and some way to make a Marine spec spark arrester fit on the supercharger intake.. Carburetor would need to be modded for boost and tuned correctly. Ignition timing would get tricky, that would need the marine version of the MSD 6 BTM, and that alone is a huge chunk of change... Probably a good $6k-10 in parts but you could probably get a good 100hp over stock if you are lucky. All the drive parts to stick a Chevy 350 in your boat will run under $5k.... But then, the Flux capacitor is going for the low cost of near $16k Flux Capacitor - $15,849.95 : KaleCoAuto.com, Your home for the rare, unusual, and hard to find auto parts.

 

[Okieboatguy]

Re: Scotty I need more power..sorry Captian thats all shes got...

Matt, the ad for the flux capacitor was awesome!!!! To bad they only have one in stock, I was thinking of doing a duel Flux Capacitor setup since the wife often states she never knows if I am coming or going!

 

[dennis461]

Re: Scotty I need more power..sorry Captian thats all shes got...

How is "race gasoline" or high octane fuel going to make any difference other than marginally making his wallet lighter?

High octane fuel doesn't make the engine more powerful. It's intended to be used in a high compression engine, which he doesn't have.

Yes it does, at the track, with no other changes to my motorcycle, i can get a change from 128 to 130 mph in 1/4 mile by using the race gas. It has more stored energy, so more power. Now, when it comes to racing, milliseconds count. On a boat, it will have the same change, small but measurable. I plan to get my boat up to 30MPH this year, past two years, 29.5 was all I could get. Is it worth the money...that's another discussion

 

[matt167]

Re: Scotty I need more power..sorry Captian thats all shes got...

The amount of BTU in Premium or regular is the same 125,000 BTU/gallon, no more stored energy, that's just a myth that has kicked around for decades. The difference comes with the resistance to pre ignite.. higher octane, is actually harder to ignite, so figuring that your motorcycle does not ping on 87, you are actually advancing the ignition timing by running a higher octane given it will ignite later in the cycle. It would advance a very miniscule amount but such that could effect HP a tiny bit, but it has nothing to do with stored energy.. Bottom line is, it won't do much in the boat engine beyond waste $$$.. Now you could bump the ignition timing a bit to get more HP if you're going to stick to premium grade gasoline, but it still won't provide much.

 

[JaseBosto]

Re: Scotty I need more power..sorry Captian thats all shes got...

The amount of BTU in Premium or regular is the same 125,000 BTU/gallon, no more stored energy, that's just a myth that has kicked around for decades. The difference comes with the resistance to pre ignite.. higher octane, is actually harder to ignite, so figuring that your motorcycle does not ping on 87, you are actually advancing the ignition timing by running a higher octane given it will ignite later in the cycle. It would advance a very miniscule amount but such that could effect HP a tiny bit, but it has nothing to do with stored energy.. Bottom line is, it won't do much in the boat engine beyond waste $$$.. Now you could bump the ignition timing a bit to get more HP if you're going to stick to premium grade gasoline, but it still won't provide much.

Well worded. If he is getting more speed out of higher ocatane gas, its because he needed it to begin with.
Another possiblity is this. My 86 chevy used to be loaded with carbon buildup. 87 octane gas would PRE-IGNITE.....93 resisted that. So, you could have a piece of crap motor that is pre-igniting the gas hence why you are getting better performance with high octane. A good condition motor that isn't high compression will get noooooooo benefit from high octane.

 

[JaseBosto]

Re: Scotty I need more power..sorry Captian thats all shes got...

Yes it does, at the track, with no other changes to my motorcycle, i can get a change from 128 to 130 mph in 1/4 mile by using the race gas. It has more stored energy, so more power. Now, when it comes to racing, milliseconds count. On a boat, it will have the same change, small but measurable. I plan to get my boat up to 30MPH this year, past two years, 29.5 was all I could get. Is it worth the money...that's another discussion

I have ocean front property for sale in Oklahoma for you! Great view.....:lol: