Wanted Sunsation 32 MCOB 2006-Present
 

Looking for a Sunsation 32 MCOB preferably with 6.2s. I'm as meticulous as they come so no junk offers. Can anybody advise from experience a top speed with 6.2s?

Ask Jupiter but you're looking at 70s with that package. By 70s I mean low 70s.

That seems to be the conclusion I've been finding. Like the big blocks, but extra money spent on gas for a few miles and hour just doesn't seem right to me. Plus there are aftermarket heads and exhaust upgrades that will increase the HP so I can achieve a little more MPH. Thanks for the info.

I'm upgrading my 6.2s right now...don't expect to be able to upgrade cheaply. It made sense for my situation. But if you are going in to it expecting to upgrade later...just buy what you want.

I do have to say I feel the same as you, the 6.2s give a lot of speed and are reasonably economical. I wouldn't have upgraded if I didn't have to do so.

Funny thing is that it wasn't until recently I've been considering 6.2s. It wasn't until I had conversation with a twin 6.2 Sunny owner who advised about the pros 6.2a yield. My goals are a solid 70 plus mph boat and that is what a twin 6.2 sunny gives. Then there is always a head/exhaust/computer tweak option to give a little extra. Thanks for the info

You do realize the coin you will drop modding the 6.2's will be way more than you will spend on gas at cruise between the 496 MAG/MAG HO's and the 6.2's? The modded 6.2's will burn more fuel too.

Reds9050:

I recently purchase a 2005 Dominator with 496's. I water tested one with the 6.2 and have driven one with the 496's, a close friend has an 2001 with the HO's. Out of the hole the one's with the 496 like to "stand up" a little more, but the mid-rang punch the 496's give you is night and day difference. The one I water tested with the 6.2's topped out at 67, now this was full of fuel and 3 adults. I have had mine and my buddy's right about 80 with the same load. These speeds were with a handheld gps. I wanted to be able to go over 70

So you are saying upgrading the 6.2s will equate to using more gas than a stock 496??

That much difference?? 13 mph seems a lot for 100 HP difference.

My boat has the Mag's not the HO and I have had it to 78 on GPS, my buddies best with the HO's has been 83. My friend's 01 now has around 600 hard hours on it and he can just barley hit 80. The one I water tested, with the 6.2, was in light chop but full of fuel and three grown men in the boat. We could only get it to 67 on GPS. Maybe someone else with the 6.2's can confirm this number.

Greg

Heres the story on upgrading the 6.2s. You will need a new cam for sure, new intake absolutely, porting of heads, exhaust, dyno fee and then tuning fee. Then a bunch of odds and ends. There is no picking and choosing, you have to do it all if you want it to be worth your time.

If I remember right...we are expecting 65 gph fuel burn when mine are finished. I think that's still less than big blocks.

As for top speed, I've seen between high 60s to a max of 72 depending on conditions. I've driven a twin 496 HO Dominator and it is faster with more mid-range but for me...I'd go 6.2s again. The only time I want more is at poker runs.

if anyone has a good deal on an 01 to 03 32 dom with big blocks keep me posted please

What price range are you in?

I had a 2004 32 MCOB 6.2 boat (older non twin step hull)........best was 73.4 on handheld GPS coming back from Key West with fumes and 3 aboard. The benefits are a gallon a minute fuel burn at WOT and lower insurance. Boat is quick out of the hole spinning 23s, a buddy had a 2005 spinning 24 4 blades with similar results. Note the 2006 and newer hull is slightly heavier and carries 50 gallons more fuel but has the twin step hull.

Buy the boat and enjoy it, forget mods.......the motors aren't that strong for them internally. Only thing with that boat was on poker runs, running WFO you would be at the pace that other boats were cruising at.

No, I'm saying modded 6.2's will burn more fuel that stock 6.2's. So if fuel consumption is your main concern, I'd leave the mills stock. Actually if fuel consumption is that big of a concern I'd question why you are buying a 32' twin engine offshore boat to begin with.

IMO if you are changing your mind back and forth on going with 496s vs 6.2s, go with the 496s. You will be glad you did the first time you firewall the throttles and can get to 80. Plus if gas is actually a concern, that is best remedied by cruising at 40mph than any other way.

Who is doing your work and what is the cost?

Bob Lloyd at Full Throttle Marine. I'm having a lot of different custom things done. Without breaking it down, I would expect around 15k plus, parts and labor installed.