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Quad 350 OR 400R - Warranty VS. Performance

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Quad 350 OR 400R - Warranty VS. Performance

Old 12-22-2018, 10:30 AM
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Default Quad 350 OR 400R - Warranty VS. Performance

What is everybody's thought on going with QUAD 350's VS. 400R?
Right now, I have the build sheet including the 350's. I'm getting LONGER warranties (8yrs VS 5yrs) & the cost of the additional years is less for the 350's.
I understand I won't get the same top end as with 400r's but I'm more concerned about RESALE VALUE & whether the 400r's are right choice for me as I'll be doing a lot of fishing, high speed trolling, trolling etc. The difference between 350 / 400 are $24K for all (4). So its not a money thing!
OK FOLKS GO -- GIVE ME YOUR OPINIONS
BTW. I'm looking at building a 42 INV Center Center Cabin
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Old 12-22-2018, 10:38 AM
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If itís purely a resale decision, buy the 350s and fully extend the warranties with Platinum.

The performance difference will only be above 6400rpms, below that threshold they have the same calibration. So if you donít run WOT very much, no need to spend the coin and have less warranty.
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Last edited by Boatsareawesome; 12-22-2018 at 10:44 AM.
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Old 12-22-2018, 11:06 AM
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Will the boat be on the water? If so I believe you need 93 and run them pretty hard to get the full benifit of the 400 vs the 350. I know around me 93 is hard to find on the water and I’m not one to run around close to full throttle so we went with the 350.
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Old 12-22-2018, 12:38 PM
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As you said it would just be a top end thing. The 350’s would be a better resale since longer warranty and you’ll save money. Throw in a seakeeper with the 24K savings.I would also check the V-8 300’s. Probably in line with the 350 vrods but possible better low end torque. Also check the center cabin INV thread. He’s having issues that you should address with INV on your new build.
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Old 12-22-2018, 01:10 PM
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I've been trying to read every thread possible about INV Center Cabin.
I'm not sure I know which thread your talking about.. Was it the Seawolff issue? I think that was the 350 Yamaha.
If its something different, please try to find & post the link.
Would love to read it.
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Old 12-22-2018, 01:14 PM
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Agreed with the most of you.. The longer warranties are whats keeping me towards the 350's.
Does mercury have any plans to extend the 400's to 8 years? I know they originally only had 2 year warranties, then they went to 3yrs, and now you can buy up to 5.
Its only a matter of time before the 400s are the 8 year deal. I'm just thinking in 5 - 6 years when I sell this boat if mercury is pushing 500-600's the 350s will be REAL OLD NEWS.
The 400's will at least be one germination newer (if that makes sense)..
Additionally it would be nice to throw more clever props on it & do the poker runs!
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Old 12-22-2018, 01:52 PM
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Originally Posted by tripsTOquads View Post
Agreed with the most of you.. The longer warranties are whats keeping me towards the 350's.
Does mercury have any plans to extend the 400's to 8 years? I know they originally only had 2 year warranties, then they went to 3yrs, and now you can buy up to 5.
Its only a matter of time before the 400s are the 8 year deal. I'm just thinking in 5 - 6 years when I sell this boat if mercury is pushing 500-600's the 350s will be REAL OLD NEWS.
The 400's will at least be one germination newer (if that makes sense)..
Additionally it would be nice to throw more clever props on it & do the poker runs!
The 350 and 400 are the same generation. We call them Gen 5 Verados. That will be the last generation of the platform.

I donít think Mercury will continue to extend the warranty on the 400s. But time will telll. I can argue both sides of that. But my guess is no.

Unless you buy the bullet nose lowers (surface drives) and raise the X dimension to the moon on the 400s you wonít just slap on cleavers and see huge gains. Figure 1 mph for every 25hp increase from the 350s to 400s. So around 8 on the top end of you can get it to 7 grand.
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Old 12-22-2018, 02:06 PM
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PS. Found the threat on the quad set-up issue. Thank you for brining to my attention..
So the new V8's will be the engine they push over 400HP? Anything about new motors for Miami?
With Yamaha doing the 425 you know its only a matter of time before they introduction something
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Old 12-22-2018, 02:24 PM
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Originally Posted by tripsTOquads View Post
PS. Found the threat on the quad set-up issue. Thank you for brining to my attention..
So the new V8's will be the engine they push over 400HP? Anything about new motors for Miami?
With Yamaha doing the 425 you know its only a matter of time before they introduction something
Rumor is itís a V-10. My Mercury buddies WILL NOT give up details, but smile when I ask. The I6 motor platform is at the end of its life cycle. As for the quad issue, Invincible needs to block off the top water intakes to stop the overheat / water pressure alarm. Mercury sells the bolts to do it. Just have to thread the holes.

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Old 12-22-2018, 03:13 PM
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Originally Posted by Pipo6007 View Post
As you said it would just be a top end thing. The 350’s would be a better resale since longer warranty and you’ll save money. Throw in a seakeeper with the 24K savings.I would also check the V-8 300’s. Probably in line with the 350 vrods but possible better low end torque. Also check the center cabin INV thread. He’s having issues that you should address with INV on your new build.
Throw in a Seakeeper and your motorwells will be under water, saw a new 38+ Intrepid with trip 350 Zuks motorwell drains underwater, saw a 42' Bahama quad 350's seakeeper scuppers underwater, [no tabs available on quads] sat VERY LOW, does not look safe with any people in the stern area. Triple 350's will be fine on your new toy.
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Old 12-22-2018, 03:22 PM
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Stick with the 350's with all the fishing your going to be doing. Finding the right props for overall performance and HST is going to be your primary objective IMO. Who really cares about the 7-9mph at WOT. Yes Its worth it on the flat, calm, glassy days...But those days only exist a couple times a year to use all the HP on the transom. If you feel it has more potential after the 1st year or 2, just reposer with 400's or whatever higher HP available.

X2 SeaKeeper
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Old 12-22-2018, 05:03 PM
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Originally Posted by THT MOD 14 View Post
Throw in a Seakeeper and your motorwells will be under water, saw a new 38+ Intrepid with trip 350 Zuks motorwell drains underwater, saw a 42' Bahama quad 350's seakeeper scuppers underwater, [no tabs available on quads] sat VERY LOW, does not look safe with any people in the stern area. Triple 350's will be fine on your new toy.
Thatís some interesting info there. The seakeeper 3 only weighs 550lbs. If he opts for the 300 v-8ís heíll shave 600lbs off the transom.
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Old 12-22-2018, 05:07 PM
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OK.. Couple of things;;;

- The seakeepr is not $24k -- its $50k with rigging & installation. They have a high failure rate.. meaning they don't blow but they have pump issues, bearing issues, and not mind you big electrical draws. DONT GET ME WRONG., I would love to put in a seakeeper but the options list has to stop somewhere..
- Not sure what your talking about a quad boat sitting low in the water -- they are running quint nows., and even 6 engine boats. I do not believe an extra 600-700 pounds on the transom is enough to sink the ass end of a 42 boat.
- LOVE THE HEAR WHAT QUAD V-10's WOULD SOUND LIKE
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Old 12-22-2018, 05:56 PM
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Originally Posted by tripsTOquads View Post
OK.. Couple of things;;;

- The seakeepr is not $24k -- its $50k with rigging & installation. They have a high failure rate.. meaning they don't blow but they have pump issues, bearing issues, and not mind you big electrical draws. DONT GET ME WRONG., I would love to put in a seakeeper but the options list has to stop somewhere..
- Not sure what your talking about a quad boat sitting low in the water -- they are running quint nows., and even 6 engine boats. I do not believe an extra 600-700 pounds on the transom is enough to sink the ass end of a 42 boat.
- LOVE THE HEAR WHAT QUAD V-10's WOULD SOUND LIKE
Get the seakeeper 3 and it shouldn't be anywhere near 50k. Maybe 35k but either way I would get it. It sets your boat apart on resale and most likely the way things are trending if you don't have one your resale will take a hit. Yes they have issues but they have gotten the attention of so many that they now are almost a necessity on a new build.
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Old 12-23-2018, 04:24 AM
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Gen5 350s would be my vote unless there’s a larger (V8 or more) 350-400hp engine available after the Miami boat show.

If you think you need a SeaKeeper, just get the Invincible 40 Cat.
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Old 12-23-2018, 04:26 AM
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Put the funds towards the Seakeeper.
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Old 12-23-2018, 05:02 AM
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Like DaveWadeMarine said wait till after the Miami show, Im sure Team Merc will be introducing 400+ hp V8's.
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Old 12-23-2018, 06:18 AM
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What are odds that mercury will introduce new motor?
and if they do will start with limited warranties like 3yrs etc.
My plan is to pull trigger at Miami... then boat will be delivered around 7/1/19
so I should be able to see all new intros at Miami
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Old 12-23-2018, 11:03 AM
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I see a quad 400 42í Invincible at the shop close to my house quite often. It has a lower unit dropped on it at least 3-4 times a year. Always an outside engine. It sure quads are the right choice on that hill, Whether 400 or otherwise.
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Old 12-23-2018, 11:58 AM
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I would skip the 400s on a heavy hull like that, the 350s outperform the 400s in that application everywhere but a couple mph at the top end. Midrange and fuel economy is much better with the 350s. The 400s are better suited to light applications where low and mid range torque is not as crucial. Remember, with the 7000 rpm red line, essentially the power band gets moved up 600 rpms over the 350. On top of it, if youíre not running premium fuel, youíre already noticing a performance decrease and really not gaining anything for the extra money and shorter warranty.

Donít get me wrong, the 400s have their place and are awesome on say a triple application on a mid 30s stepped hull CC, but load them down with a heavy hull to push around and theyíre less than ideal.
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