Offshoreonly.com - Any factory 28ss w/ big blocks? How would it handle?

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Quote:

Originally Posted by bookshelf (Post 3253535)

Thanks for the input, can you elaborate on the trs to bravo though, I had thought by doing that you'd be taking weight out by losing the transmissions, but changing the center of gravity by moving the motors back too. Are you changing the x dimension at the same time?

You have to re-cut the X dimension no matter what if you do the change, since the Bravo housing is smaller than a TRS. The transom has to be filled to do this, so you can cut the X however you want.

Quote:

Originally Posted by TexomaPowerboater (Post 3253598)

Never really noticed the porpoise with twin 415HP 502's, but then again it wasnt my boat, the driver may have done something to overcome it.

Quote:

Originally Posted by TexomaPowerboater (Post 3253598)

I've never been on a 28 cig, but I have been on a 28 pantera with twin big blocks. The pantera had a serious porpoise at WOT in calm water. I've heard that the porpoise issue with the pantera helps to have more power. The one I was in was a 310hp 454.

My Apache handles great and the motors are relatively easy to work on. You don't need to use the tabs or constantly adjust the trim. Get on plane touch up the trim and thats it. Its balanced well and easy to drive. You can pull both motors without removing anything, including exhaust. Last summer we pulled and installed the starboard side without taking off anything. I'd venture to say the 28 Apache has the biggest engine room out of all the 28's. There is enough room for twin 850SC Merc's without modifying the hatch. Gun Smoke had twin 850's. It actually has somewhat of a raised hatch you can see from the rear. I have been able to sit on the floor of the engine bay with the motors in. In order to change out the plugs I will probobly have to pull the inside risers. I will say that I'm not looking forward to pulling the drain plugs. Freeboard and cabin headroom is also a huge plus.

I like the looks of the Apache, where did they find the swim platform...looks good. I have considered adding one to my SS, but my exhaust comes out above the rib and I dont think it would look good with 4 big pipes above the platform.

I've seen a 28ss with BBC and prochargers....no room to slide a piece of paper between them! :D but cool as hell! :D

Quote:

Originally Posted by Wally (Post 3254320)

I've seen a 28ss with BBC and prochargers....no room to slide a piece of paper between them! :D but cool as hell! :D

Even getting to the batteries to check on them is a challenge.

I just changed mine over from 3EE's to Group 27's, I had to roll the battery box up like a taco to get past that tube on the right hand side and into the new battery tray and may have to pull the right motors exhaust manifold to put the battery in the battery box.

Quote:

Originally Posted by Wally (Post 3254320)

I've seen a 28ss with BBC and prochargers....no room to slide a piece of paper between them! :D but cool as hell! :D

Nice hatch, I would love to see more pictures of it, the stock hatches were flat and had 3 scoups across the back edge for riser clearence. Mine with late model stock 425HP 454's had to have a hole cut for the carbs to stick thru.

Quote:

Originally Posted by Wally (Post 3254320)

I've seen a 28ss with BBC and prochargers....no room to slide a piece of paper between them! :D but cool as hell! :D

Sweet, thanks for posting.

That is the best setup I've seen on any of the 28's I've even seen. I had the pics of the rest of that boat somewhere, & can't find them now! http://smiliesftw.com/x/madafro.gif

Their engine compartments don't allow for much, but as you can see, they can be fit with decent sized power with a little work.

When I redid mine, I decided to supercharge my SB's, instead of trying to fit BB's in it. I did the conversion from TRS drives to Bravo's, so when I added the superchargers, the boat REALLY woke up. The ProCharger setup allowed for the best clearance & power at the time, so that's the route I took:

http://img403.imageshack.us/img403/2053/enginesg.jpg

http://img261.imageshack.us/img261/7239/procharger.jpg

here are the only other pics i have of that boat. These were taken back in 02 during one of the fun runs we had to Racine. This 28 has ext box's on the back of it as well....the owner at that time said she runs in the low 90's :D

Holy cow, how do you get to the drain plugs? Or do you just fill it up with anti-freeze?

Quote:

Originally Posted by Crallscars (Post 3253927)

Not sure, it came with the boat. The transom is a lot taller than the Cigs so plenty of room for a swim platform. Really nothing custom about it. Have you thought about making one with cutouts for the exhaust. Or maybe just doing a single step platform in the middle of both exhaust.