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Search: Posts Made By: Rawpower
Showing results 1 to 25 of 32
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Forum: Formula
06-26-2017, 02:31 PM
Replies: 135
Views: 28,252
Posted By Rawpower

I am thinking of selling my freshwater (northern...

I am thinking of selling my freshwater (northern Illinois) 312 boat

I have a 1998 312 with 454 Mag Mpi's 385hp, K planes, two sets of props, cockpit cover, full mooring cover that I use as a dust...
Forum: Formula
09-19-2011, 10:15 PM
Replies: 14
Views: 2,712
Posted By Rawpower

I have the 454mag mpi's 385 hp, 70mph on the GPS....

I have the 454mag mpi's 385 hp, 70mph on the GPS. Great boat but does not like to go slow. If you want to go 25 mph, drives must be tucked in and you must use some tabs. My only suggestion is to look...
Forum: Formula
07-16-2010, 12:57 PM
Replies: 3
Views: 830
Posted By Rawpower

I once read somewhere (Teague tips i think) 1/8...

I once read somewhere (Teague tips i think) 1/8 inch in if you turn your props in and 1/8 inch out if you turn your props out. The theory behind this is that the spinning torque of the propellers...
Forum: Drives and Lower Units
07-09-2010, 02:33 PM
Replies: 1
Views: 931
Posted By Rawpower

What Color is your drive oil

I just drained my drive oil on my Bravo drives. The oil in the starboard drive looks almost as good as when it went in, nice green color. The other port drive oil looks a little dirty or dark. Both...
Forum: General Q & A
07-09-2010, 12:26 PM
Replies: 3
Views: 1,132
Posted By Rawpower

Thanks for the input, my props turn in so the...

Thanks for the input, my props turn in so the port drive is RH and the starboard is LH. The port RH has the darker oil and the starboard LH has the nice clean green oil.
Forum: Formula
07-09-2010, 10:06 AM
Replies: 4
Views: 1,011
Posted By Rawpower

What Color is Your Drive Oil

I just drained my drive oil on my Bravo drives. The oil in the starboard drive looks almost as good as when it went in, nice green color. The other port drive oil looks a little dirty or dark. Both...
Forum: General Q & A
07-09-2010, 10:05 AM
Replies: 3
Views: 1,132
Posted By Rawpower

What Color is your Drive Oil

I just drained my drive oil on my Bravo drives. The oil in the starboard drive looks almost as good as when it went in, nice green color. The other port drive oil looks a little dirty or dark. Both...
Forum: Formula
06-21-2010, 10:56 AM
Replies: 4
Views: 1,944
Posted By Rawpower

Try turning your props in. My 312 was set up that...

Try turning your props in. My 312 was set up that way when I bought it. I think the single step runs flatter than a two step. After I get on plane I always trim it up some depending on the load,...
Forum: General Q & A
06-21-2010, 10:18 AM
Replies: 7
Views: 10,109
Posted By Rawpower

I have 454 mag mpi's in my '98 and both engines...

I have 454 mag mpi's in my '98 and both engines have similar oil pressures for as long as I have owned the boat.

Hot idle 20 PSI
Hot 2500 rpm 40-45 PSI

Mercruiser Service Manual # 23...
Forum: Formula
06-12-2010, 10:26 AM
Replies: 5
Views: 1,061
Posted By Rawpower

My 312 oil pressure and water temperature gauges...

My 312 oil pressure and water temperature gauges never match. I switched the sending wires to the gauges temporarily , and the high was now the low and the low was now the high. It would be nice if...
Forum: General Q & A
06-06-2010, 08:49 PM
Replies: 17
Views: 2,473
Posted By Rawpower

I used J&E blower pistons in my 502 blower motor...

I used J&E blower pistons in my 502 blower motor with very good results. And yes you should re-balance the rotating parts.

I had previously melted the # 8 stock piston with the # 6 starting to...
Forum: General Q & A
05-31-2010, 12:47 PM
Replies: 3
Views: 692
Posted By Rawpower

Nickerson did mine on my previous blower motor....

Nickerson did mine on my previous blower motor. They do good work at a fair price and they know what they are doing.
Forum: General Q & A
05-25-2010, 08:27 AM
Replies: 12
Views: 12,919
Posted By Rawpower

jwurl, you stated Keith Eickert manifolds made a...

jwurl, you stated Keith Eickert manifolds made a huge difference, did they increase the top end speed?

Currently my exhaust manifolds are fine (fresh water) just looking to add a couple of MPH'S....
Forum: General Q & A
05-23-2010, 09:05 AM
Replies: 12
Views: 12,919
Posted By Rawpower

Stainless Marine OR EMI Replacement For Stock Exhaust Manifolds

I have a '98 Formula 312 with stock 454 MAG MPI’s 385hp and stock Merc exhaust manifolds.

Has anyone replaced the stock exhaust on these engines with EMI or Stainless Marine manifolds and risers...
Forum: Formula
05-19-2010, 09:15 PM
Replies: 29
Views: 8,253
Posted By Rawpower

'98 312 spinning in, that's the way I got the...

'98 312 spinning in, that's the way I got the boat. The trick with backing up is put the steering wheel straight and just use the throttles and gear selectors. Never tried spinning them out so I...
Forum: Formula
05-19-2010, 09:32 AM
Replies: 1
Views: 1,361
Posted By Rawpower

Best Replacement for Stock Exhaust Manifolds

I have a 312 with stock 454 MAG MPI’s 385hp and stock Merc exhaust manifolds.

Has anyone replaced the stock exhaust with EMI or Stainless Marine manifolds and risers on these engines?

Did you...
Forum: Swap Shop
05-18-2010, 01:46 PM
Replies: 3
Views: 570
Posted By Rawpower

Did you notice any speed change from the stock to...

Did you notice any speed change from the stock to the EMI ?
Forum: Formula
05-06-2010, 09:08 PM
Replies: 5
Views: 3,043
Posted By Rawpower

I had a 1988 242SS with a 502cui 630 hp of which...

I had a 1988 242SS with a 502cui 630 hp of which I put two 4-inch deck covers where the normal 1-inch drain holes were. The nice thing about this set up is that when you are idling, the holes are in...
Forum: Formula
10-16-2009, 10:59 AM
Replies: 4
Views: 918
Posted By Rawpower

Go with K Planes, I have them on my 312 and they...

Go with K Planes, I have them on my 312 and they work great.
Forum: Formula
08-12-2009, 12:06 AM
Replies: 7
Views: 1,229
Posted By Rawpower

My 98 454 Mag MPI Props turn in and i get 71 on...

My 98 454 Mag MPI Props turn in and i get 71 on my GPS. This is the way the boat came and I was also told that you get more speed turning in. If i thought i could get another 2MPH out of it I would...
Forum: Formula
06-24-2009, 01:35 PM
Replies: 13
Views: 3,612
Posted By Rawpower

I had an ‘88 242 SS that I purchased new with a...

I had an ‘88 242 SS that I purchased new with a 330 HP 454 and a bravo drive. I added a blower to it, MSD ignition and Stainless Marine exhausts, modified the Silent Thunder Exhaust and a few little...
Forum: Formula
06-23-2009, 09:04 AM
Replies: 13
Views: 3,612
Posted By Rawpower

I had an 88 242 630 HP, it had the flappers. you...

I had an 88 242 630 HP, it had the flappers. you remove the rubber hose and they are atteched to the metal tips that go thriugh the transom to your silent thunder. not a big job but very important to...
Forum: Formula
06-20-2009, 09:32 AM
Replies: 10
Views: 4,113
Posted By Rawpower

I had an ‘88 242 SS that I purchased new with a...

I had an ‘88 242 SS that I purchased new with a 330 HP 454 and a bravo drive. I added a blower to it, MSD ignition and Stainless Marine exhausts, modified the Silent Thunder Exhaust and a few little...
Forum: Formula
06-17-2009, 11:15 AM
Replies: 8
Views: 2,296
Posted By Rawpower

I have the Merc flush factory installed and they...

I have the Merc flush factory installed and they use a Y fitting that directs the water to the sea water pump, any extra water flows out the drive. You would not want to block this off since city...
Forum: Formula
06-17-2009, 10:52 AM
Replies: 11
Views: 6,116
Posted By Rawpower

I had a 242 with a 630 hp 502 blower motor in it....

I had a 242 with a 630 hp 502 blower motor in it. I installed two Bomar High-Impact Polycarbonate 4" Screw-In Deck Plates one by each drain hole. You do not have to fool around with the baffles. I...
Showing results 1 to 25 of 32
 
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