Ran my Verado 400r

[jjg]

I'm running a Bravo 22" that is pithed to 23 with some additional work done to it by Rich Junker at Leading Edge Propeller, i have a 24 Bravo that i ran with the 300 & on back to backs the 23 was 1mph slower than the 24 but had a lot better hole shot, my initial running on the 400 is with the 23 & once i have more time on the engine i will test different props since my speed of 75 & 6800 rpm was with the Sporty 2" below the pad & it can be truly run at 0 or +1

Bravos run light on pitch so a 24 is actually a 23.3 anyway. Try the Bravo FS it has a shortened exaust tube and labbed blades already. Hole shot on the FS was much better than the std bravo and top end was 2 mph better. I have a 26 FS waiting for my 400 which is actually a 25.3 so we will see. The shortened tube on the FS reduces drag and lessens stern lift which allowed me to increase my X dimension by 3/4" also carried the bow better.

 

[jjg]

Thanks, i am keeping an eye on it for sure & so far after a year of running it some times hard, well most of the time , she's looking good. I run in the intercoastal, offshore along the beach & a few times have taken her across the Gulfstream to Bimini for some horsing around in the Bahamas, granted it's only been a year so i'll keep an extra look at now that the 400 is on it.

No problem on the fyi. Just keep in mind Checkmate has had a specific type of failure with this type & Mfgr of jack plate. It probably wouldnt hurt to contact them in future to get the specifics on what warning signs to look for.

My 400 has another week or two before it arrives.

 

[jjg]

Here is a good example of a similar setup but with the 350sci. He settled on a 25p rev4 which is way too small in diameter for the torque of these motors. But the speed gains should give an idea of what may be possible with the 400

http://www.thehulltruth.com/boating-forum/362623-phantom-25-verado-350-sci-first-impressions.html

 

[Hayabusa]

No problem on the fyi. Just keep in mind Checkmate has had a specific type of failure with this type & Mfgr of jack plate. It probably wouldnt hurt to contact them in future to get the specifics on what warning signs to look for.

My 400 has another week or two before it arrives.

Thanks for the info i will put a call into CM & see if i can get the low down on this issue although i've called them on other matters but hadn't had much luck with them following up with me, got to keep trying

 

[jjg]

Any specific extra maintenance procedures required for the 400 ?

 

[Hayabusa]

Any specific extra maintenance procedures required for the 400 ?

Nothing additional same maintenance & intervals as the 300.

 

[Hayabusa]

My 400 is setteling nicely, have a lttle over 13 hrs on it & done some more high speed runs with a Mercruiser Bravo 24 that i've had labled & pitched to 24.5", end result is 77 mph gps at 6770 according to the recal button on my Vantage View, gearcase at 1/2" below, next i will try my worked 25 Tempest.

 

[jjg]

My 400 is setteling nicely, have a lttle over 13 hrs on it & done some more high speed runs with a Mercruiser Bravo 24 that i've had labled & pitched to 24.5", end result is 77 mph gps at 6770 according to the recal button on my Vantage View, gearcase at 1/2" below, next i will try my worked 25 Tempest.

Thats 14% slip, which seems to be a little high with that gearcase. Good luck with that tempest dont expect good hole shot or mid range with that prop. Its way too small in diameter @ 14.625" to be effective on these motors. Have that exaust tube cut down & cup hight reduced on the bravo or try a bravo FS which is what that gearcase was really designed around and your #'s should improve.

I will be having my 400 installed next tuesday so we will have a good comparison. Was supposed to have it put on last friday but they got so slammed due to memorial day they had to reschedule.

 

[Hayabusa]

The exhaust tube has been cut on the Bravo 24, blades measuring 15" across, leading edges of blades slightly thinned, back cut, etc. Should be nice to have another 400 on similar Chek to compare with although my open bow catches a lot of air your boat should be a solid 5 mph faster, looking fwd to hearing your tests & impression.

 

[Mark]

We appreciate you sharing your journey with the new 400. Propping of the new bigger HP motors always becomes a challenge. What worked for the smaller motors rarely works for these beasts.

Although not a close comparison I went through this when I put a big block 250 Etec on my Starliner. None of my small diameter props worked worth beans (Trophy, TRO4, Tempest). Finally, found the answer in a 25p Rev4 which worked great because of the extra blade. The answer to big torque seems to be large blade area.

I would think the Tempest will slip like crazy with the torque of your new motor. But try every prop you can get your hands on. Chances are you are going to land with a big diameter prop when you get that thing rocking. I would keep the new Enertia Eco in mind at 16". A 26p Bravo might get you there too. I would think you have several MPH still on the table. Keep us posted and enjoy the journey.

 

[Gimme Fuel]

I do have a mint 25p Rev 4 I would sell if anyone is interested.

 

[jjg]

We appreciate you sharing your journey with the new 400. Propping of the new bigger HP motors always becomes a challenge. What worked for the smaller motors rarely works for these beasts.

Although not a close comparison I went through this when I put a big block 250 Etec on my Starliner. None of my small diameter props worked worth beans (Trophy, TRO4, Tempest). Finally, found the answer in a 25p Rev4 which worked great because of the extra blade. The answer to big torque seems to be large blade area.

The Rev4 is a twin to the Tempest, true to pitch and same diameter. Mid range and holeshot with both of these props was anemic at best which in turn affected ride quality and the ability to get out of its own way. The rev4 was a little better on holeshot but mid-range acceleration was non existant. The enertia for a 3 blade wasnt bad on hole shot but didnt like a high X dimension so overall performance was mediocre.

 

[kct11]

Rev 4 works great on my 2400 300xs. Might be the extra wasted 2 cycles

 

[jjg]

Rev 4 works great on my 2400 300xs. Might be the extra wasted 2 cycles

Yes it should. These vrods need more blade area to harness the increased torque. On hole shot even with the trim buried I had a hard time not breaking the rev 4 loose and in the rough stuff it just couldnt keep it on top and out of the ditch due to its wanting to break loose in the midrange.
Now with your setup that bravo xs with its 14.750" dia would probably make a difference over the rev4 since you could raise your x dim a bit more. And it seems the tempest & the rev seem to not like to run real high anyway at least in the setups ive run them in. Now on a 18-21' bass boat/pulsare application they kick a$$ but, they also dont need the stern & bow lift that we do with our 24's. On my 1850 the tempest was awesome on the 2400 it ran 1mph faster than everything else but thats all it could do.

 

[RDAGlock]

JJG- tuning in here to see if you have got your 400r installed ... And any test runs in?

Considering it myself...however watching both Hayabusa and your results closely to see if worth the investment. I am Currently running between 74-75mph on my 2014 w/300xs... And am hoping to see you both over 80mph.

 

[Sam I am]

I do have a mint 25p Rev 4 I would sell if anyone is interested.

Interested...PM sent.

 

[jjg]

JJG- tuning in here to see if you have got your 400r installed ... And any test runs in?

Considering it myself...however watching both Hayabusa and your results closely to see if worth the investment. I am Currently running between 74-75mph on my 2014 w/300xs... And am hoping to see you both over 80mph.

Having it installed tomorrow. Hope to start the testing asap, so long as mother nature cooperates. I will put the results in my 2400 build thread, that way all the data is in one place.

 

[kct11]

Another thing that might be holding you back is the lower unit and running high. The sportys are desinged to run at the surface and make drag any other way. That hull has no pad and its heavy, so I dont think it will work with a setup like the 2100. Mine likes to run well under the "pad", and if I get any were near the surface it slows down or looses bite. I think the hot setup would be a torque master type lower on the 400r when put on a 2400.

 

[kct11]

When I had mine built I asked them to put a plug in the mold to make a pad. That was the one request that got nixed. They were unwilling to do it as its never be done/tested on that hull so I understood that. I think it would be just as good everywhere else handeling wise and faster. I think its harder to drive then my 2100 was at max speed because of no flat running surface.

 

[dream4ta]

When I had mine built I asked them to put a plug in the mold to make a pad. That was the one request that got nixed. They were unwilling to do it as its never be done/tested on that hull so I understood that. I think it would be just as good everywhere else handeling wise and faster. I think its harder to drive then my 2100 was at max speed because of no flat running surface.

I am very seriously considering padding my Enforcer while I am doing the other bottom work over the next couple of years. I am under the impression that it is a very similar running surface to the 2400. I was wondering if anyone had padded one.