Today I put down a refundable deposit on a new Thunder Jet with a 305 Chevy.I didn't have a chance to test drive it, as it was well after closing time.I test drove a 175 sportjet last week and it performed well, but it is a two-stroke with the smoke an fumes. Naturally I'll be test driving the boat before buying, but would like to here from some small V-8 jet owners (the 305 in particular)on the performance and satisfaction of this combo. Thanks Jay
Question for V-8 jet owners
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It really depends on how long/heavy your boat is. Personally I would go with the 350 if the boat is 21ish. I have a TJ with the 350 and my buddie has a 305, when it is loaded he could use a little more power. What pump are our looking at? Hamilton or Kodiak I hope.
Jet~~~
Jet~~~
ISF,
I think you are making the right choice going with the 4-cycle on the 19'.
I got the 240SportJet with my 19' NorthRiver, plenty of power but smokey and noisy...had to get rid of it.
Compare the weight and hp of the 305 Chevy to the 240 Sportjet, see what the HP to weight ratio is. My performance was good with the SportJet so if the HP/WT ratio is the same for the 305, you are probably in good shape.
Brion
I think you are making the right choice going with the 4-cycle on the 19'.
I got the 240SportJet with my 19' NorthRiver, plenty of power but smokey and noisy...had to get rid of it.
Compare the weight and hp of the 305 Chevy to the 240 Sportjet, see what the HP to weight ratio is. My performance was good with the SportJet so if the HP/WT ratio is the same for the 305, you are probably in good shape.
Brion
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8,997 Posts
I have a 325HP V8 350 with American Turbine SD-309 in mine. My boat is a 20 Custom Weld Cobra SE and weighs approximately 2700 lbs. I've had zero problems with having enough power with as many as 6 people (about 1000lbs) on board.
BTW, if you plan to go in rougher water, either plan to slow down quite a bit or buy trim tabs. It is a much better ride if you use more of the V in the front of your boat.
BTW, if you plan to go in rougher water, either plan to slow down quite a bit or buy trim tabs. It is a much better ride if you use more of the V in the front of your boat.
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2,367 Posts
You ever consider going with a Yamaha outboard instead of a noisy inboard? :grin: Less maintenance, much better peformance and more efficient IMHO. Besides, that way you don't loose all of that valuable fishing space and won't need hearing aids in 10 years. :wink:
Besides, I want to see you try to pull start your inboard when the batteries are dead. :wink:
Besides, I want to see you try to pull start your inboard when the batteries are dead. :wink:
Mr. Carp - I was under the impression inboard jets are more efficient. I checked the Yamaha website and the biggest jet is 80hp and I would imagine very spendy.
You've got a good point about not being able to rope start a V-8.... maybe push start it?
You've got a good point about not being able to rope start a V-8.... maybe push start it?
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2,558 Posts
Just from my experience and humble opinion, if you can aford the 350 you should go that route. The smaller motor may have enough, but it will be working itself hard under heavy load conditions. The 350 would probably use slightly less fuel as a result. Also, anyone with an inboard should have two batteries and a switch to select either or. What was mentioned about rope starting an inboard is true if you don't have enough sense to double up on the batteries. Then again if you pack a kicker around with you, they can get you out of a jam provided it is sized large enough for your boat. Congratulations on the new boat purchase. I've experienced the feeling a few times and it was just as fun the last time as the first.
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1,023 Posts
Hey Carp..........Whose motor has been in the shop lately!!! :grin:
Go with the 350. I'm not sure if you have signed on price yet, but Sigler's will come down on price. They have 90+ boats in stock and tell them you don't have to buy from them. Last year they couldn't get the 305 in stock and gave the 350's at the same price. My friend had one and the mileage is not that much better on the 305. Plus I would think about a different pump. The Marine Power is new, may be fine I don't know, but has not had the years of testing like the American Turbine and Hamilton and Kodiak. The AT 209 should also be the same price as the Marine Power, plus the clean-out for the pump is outside the boat. Good luck and let them know it's a buyers market. They DO NOT want to loose your business.
Green Machine
Go with the 350. I'm not sure if you have signed on price yet, but Sigler's will come down on price. They have 90+ boats in stock and tell them you don't have to buy from them. Last year they couldn't get the 305 in stock and gave the 350's at the same price. My friend had one and the mileage is not that much better on the 305. Plus I would think about a different pump. The Marine Power is new, may be fine I don't know, but has not had the years of testing like the American Turbine and Hamilton and Kodiak. The AT 209 should also be the same price as the Marine Power, plus the clean-out for the pump is outside the boat. Good luck and let them know it's a buyers market. They DO NOT want to loose your business.
Green Machine
Green Machine - I may have been mistaken on which pump the boat has because it does have a top clean-out.
I have considered the 350 which is a $1500 upgrade or $2500 for fuel injection, then horse power shouldn't be an issue, it's fully self contained cooling system and self winterizing {I guess the manifolds are self draining).
Cost is starting to limit how the boat can be outfitted. They have recommended upgrading to a dual axle trailer ($700) because with a full tank of gas, a kicker & gear it's at the single's limit. Then there's a welded kicker bracket $400(seems awfully high) & a 8hp high thrust Yamaha with electric start & tilt ($2400). Oh, and tax looks to be $1900 or more.
So, there comes a point where you have to say "I don't want to pay no more", which led me to the original post. I hope the test drive will make the decision easier and not harder.
Please keep the posts coming, they.re very helpful.
[ 08-17-2003, 12:00 PM: Message edited by: ISeeFish ]
I have considered the 350 which is a $1500 upgrade or $2500 for fuel injection, then horse power shouldn't be an issue, it's fully self contained cooling system and self winterizing {I guess the manifolds are self draining).
Cost is starting to limit how the boat can be outfitted. They have recommended upgrading to a dual axle trailer ($700) because with a full tank of gas, a kicker & gear it's at the single's limit. Then there's a welded kicker bracket $400(seems awfully high) & a 8hp high thrust Yamaha with electric start & tilt ($2400). Oh, and tax looks to be $1900 or more.
So, there comes a point where you have to say "I don't want to pay no more", which led me to the original post. I hope the test drive will make the decision easier and not harder.
Please keep the posts coming, they.re very helpful.
[ 08-17-2003, 12:00 PM: Message edited by: ISeeFish ]
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Remember the Marine power pump single stage is basically the same as the American Turbine. The Marine power 3 stage the same as the Kodiak. Kodiak is a older design from Hamilton. Kodiak is located in Tualatin and Hamilton is based in Australia.
IF you need parts and the bite is on, you need parts fast, local parts can be a plus.
If you can not tell I do have a Kodiak and love it. If I did it again I might buy the Hamilton as it is a newer design, But As a matter of fact Kodiak just came up with a new pump so it might be a toss up.
Now that you have pump confusion, sorry.
The 350 would be the better choice.
Jet~~~
IF you need parts and the bite is on, you need parts fast, local parts can be a plus.
If you can not tell I do have a Kodiak and love it. If I did it again I might buy the Hamilton as it is a newer design, But As a matter of fact Kodiak just came up with a new pump so it might be a toss up.
Now that you have pump confusion, sorry.
The 350 would be the better choice.
Jet~~~
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I have considered the 350 which is a $1500 upgrade, Yes... skip the Fuel injection to save dollars.
They have recommended upgrading to a dual axle trailer ($700)... as must with the weight and safety issue. The best part is ther is no wiggle wagle from the trailer.Hopefully it is a welded Tricker as they fit the TJ better than the Cheeze loader.
Then there's a welded kicker bracket $400(seems awfully high)... One of the best investments, There is a trough on the bracket for bait and other wet items
8hp high thrust Yamaha with electric start... The group all loves Yamaha mortors. I think you can get a non-current Honda for about $700 lesss
Jet~~~
They have recommended upgrading to a dual axle trailer ($700)... as must with the weight and safety issue. The best part is ther is no wiggle wagle from the trailer.Hopefully it is a welded Tricker as they fit the TJ better than the Cheeze loader.
Then there's a welded kicker bracket $400(seems awfully high)... One of the best investments, There is a trough on the bracket for bait and other wet items
8hp high thrust Yamaha with electric start... The group all loves Yamaha mortors. I think you can get a non-current Honda for about $700 lesss
Jet~~~
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4,387 Posts
Skip the fuel injection and stick with the carb. A double axle is the only way to go. If I had to do it all over again I would have spent the extra money. I have three years on my boat and go through a tire every 14 months. Honda'a and Yamaha's are great motors if you have the extra money but Nissans run just as well for less. I have had mine for three years and have only have to pull it twice to start. The kicker brackett is a must. I got the same one and they are great to throw bait in and run the river to de thaw.
I have a Weldcraft Renegade which is a cookie cutter to the TJ in my opinion. The 350 is very popular but the 305's are good also. I opted with the 4.3 Vortec (225 hp) inboard and am very pleased with her. I get plenty of power and is better on the Texaco card. I take three to four people with me and will run with the V8's on any day. A few of you have seen me on the river and can vouch for that.
Good luck to your best day of your life. Actually you get two of those, the day you buy and the day your sell or trade in to upgrade :grin:
I have a Weldcraft Renegade which is a cookie cutter to the TJ in my opinion. The 350 is very popular but the 305's are good also. I opted with the 4.3 Vortec (225 hp) inboard and am very pleased with her. I get plenty of power and is better on the Texaco card. I take three to four people with me and will run with the V8's on any day. A few of you have seen me on the river and can vouch for that.
Good luck to your best day of your life. Actually you get two of those, the day you buy and the day your sell or trade in to upgrade :grin:
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Iseefish; You got mail 
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Go with the 350, If you can swing it get a Hamilton 212 pump. If not, got with an American Turbine. You can rebuild an AT minus a new impeller for about 150 bucks. Also, with an AT pump you can install a Place Diverter which tilts the nozzle up or down for trim.
I just rode in a 21' Jet boat powered by a Chevy ZZ4 motor running a legend pump with a stainless "A" impeller and the boat runs in the high 70's to low 80's at 5000 rpm. the ZZ4 is a 355 horse small block.
I just rode in a 21' Jet boat powered by a Chevy ZZ4 motor running a legend pump with a stainless "A" impeller and the boat runs in the high 70's to low 80's at 5000 rpm. the ZZ4 is a 355 horse small block.
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10,514 Posts
I, too, wish I had gotten a double axle trailer, and my boat is plenty light (boat and trailer total is about 2300lbs). I also wish I had gotten trailer brakes. They are much cheaper at original purchase than after the fact.
don't skimp on horespower,305 is good the 350 is just a little better, don't hagle over the pump unless you are planning on running very large and powerfull whitewater, otherwise the 212 hamilton is just an expensive option you will never need, just ran the lower rogue, from gold beach to agness, 4.3 and at309 did awesome.and it was very shallow.shop around and do not get that deer in the headlights thing happening to ya, good luck. :cheers:
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