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Search: Posts Made By: 47EXCALIBUR
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Forum: General Q & A
Yesterday, 12:05 PM
Replies: 26
Views: 600
Posted By 47EXCALIBUR

T&D rockers all the way. lightweight steel body ...

T&D rockers all the way. lightweight steel body

just my 2c
Forum: General Q & A
12-21-2021, 11:07 AM
Replies: 212
Views: 11,427
Posted By 47EXCALIBUR

That Merc pic looks to be a 500EFI that had a...

That Merc pic looks to be a 500EFI that had a Whipple 2.3 w/inner cooler installed

You can run 16 injectors with one in the port and one in the throttle body. Ive done that. Ive also run 80lb...
Forum: General Q & A
12-15-2021, 10:51 AM
Replies: 212
Views: 11,427
Posted By 47EXCALIBUR

here is a link to another site that has pics on...

here is a link to another site that has pics on page 17 of the thread of how I took the existing manifold and made it port injection. If you can machine yours you can save money instead of buying a...
Forum: General Q & A
12-14-2021, 10:07 AM
Replies: 212
Views: 11,427
Posted By 47EXCALIBUR

low boost, low timing and fat on fuel still...

low boost, low timing and fat on fuel still doesnt fix your problem.
Forum: General Q & A
12-10-2021, 05:16 PM
Replies: 212
Views: 11,427
Posted By 47EXCALIBUR

4 psi 4000rpm and 31.5* is great. the problem is...

4 psi 4000rpm and 31.5* is great. the problem is that the front 2 cylinders are probably 10:1 AFR and the rear 2 cylinders are 14:1 AFR. If you just change the intake manifold to port injection you...
Forum: General Q & A
12-10-2021, 12:15 PM
Replies: 212
Views: 11,427
Posted By 47EXCALIBUR

ya 9:1 is way to much compression. He should drop...

ya 9:1 is way to much compression. He should drop it to 8:1 and run 10-12 lbs boost.
Forum: General Q & A
12-10-2021, 11:24 AM
Replies: 212
Views: 11,427
Posted By 47EXCALIBUR

Mercury runs 16 injectors, 2 per cylinder. That...

Mercury runs 16 injectors, 2 per cylinder. That probably helps a ton with fuel distribution in the cylinder. Also they run a deflector panel under the whipple so as to spread the volume of air...
Forum: General Q & A
12-10-2021, 10:51 AM
Replies: 212
Views: 11,427
Posted By 47EXCALIBUR

What heads are you running on these? Where did...

What heads are you running on these? Where did you set your compression ratio ? And realistically if you dont go to port injection you will constantly be chasing to get the correct tune.
Forum: General Q & A
12-09-2021, 04:20 PM
Replies: 212
Views: 11,427
Posted By 47EXCALIBUR

Just go to port injection now. Ive been down this...

Just go to port injection now. Ive been down this road. Mercury runs 7.9:1 comp ratio w 12lbs boost on a mercury 1075 with 93octane and they all live. Also they run there AFR's on the crispy side at...
Forum: General Q & A
12-09-2021, 11:01 AM
Replies: 212
Views: 11,427
Posted By 47EXCALIBUR

Looking at everything here. My thoughts are the...

Looking at everything here. My thoughts are the real problem being your running this engine as batch fire for the fuel injectors through the throttle body. I've been through this before. You should...
Forum: General Q & A
10-06-2021, 02:52 PM
Replies: 5
Views: 186
Posted By 47EXCALIBUR

Just a small beed of silicone

Just a small beed of silicone
Forum: General Q & A
09-28-2021, 11:14 AM
Replies: 50
Views: 5,114
Posted By 47EXCALIBUR

You are going to be closer to Sonic30ss's props. ...

You are going to be closer to Sonic30ss's props. I ran a 27x20x18rake 6 blade with 1100hp /1200ftlbs trq(1.56 ratio)
Forum: General Q & A
09-24-2021, 11:29 AM
Replies: 17
Views: 1,353
Posted By 47EXCALIBUR

The difference is longer and shorter tail pipes. ...

The difference is longer and shorter tail pipes. If you are using turn downs try drilling two 1/2 in'' holes in turn down above the water line. Also crank sensor can be set closer to the reluctor...
Forum: General Q & A
09-23-2021, 03:03 PM
Replies: 17
Views: 1,353
Posted By 47EXCALIBUR

Dont turn fuel pressure down on these engine....

Dont turn fuel pressure down on these engine. They already run lean from Mercury. Key on 60-62 psi on smartcraft for reference.
Forum: General Q & A
09-22-2021, 01:54 PM
Replies: 17
Views: 1,353
Posted By 47EXCALIBUR

safety neutral switch on transmission. The...

safety neutral switch on transmission. The computer uses that for shift anticipation. Also it might be telling the computer its in gear when it really isn't
Forum: General Q & A
09-09-2021, 10:32 AM
08-12-2021, 02:18 PM
Replies: 5
Views: 565
Posted By 47EXCALIBUR

Call BAM in FL get the dry sump 1550

Call BAM in FL get the dry sump 1550
Forum: General Q & A
08-04-2021, 05:41 PM
Replies: 50
Views: 5,114
Posted By 47EXCALIBUR

Joe has a 45 Excalibur and had to make those...

Joe has a 45 Excalibur and had to make those modifications to the underside of the swim platform/transom. On the 47 like yours and my old one,you do not. The only thing i had to do was move the...
Forum: General Q & A
07-30-2021, 12:53 PM
Replies: 50
Views: 5,114
Posted By 47EXCALIBUR

With my 47 and Arneson's on a 1:56 ratio and...

With my 47 and Arneson's on a 1:56 ratio and 1100hp I went with 20x27x18 rake , six blade
Forum: General Q & A
07-28-2021, 03:59 PM
Replies: 50
Views: 5,114
Posted By 47EXCALIBUR

you will lose mph with those Konrad drives. Ive...

you will lose mph with those Konrad drives. Ive seen up to 5-10 mph loss... As for the Arnesons on a 47. The prop nut just about lines up with the rub rail at the swim platform. You will also gain...
Forum: General Q & A
07-27-2021, 01:46 PM
Replies: 50
Views: 5,114
Posted By 47EXCALIBUR

Thats my old boat in Lake Cumberland with the...

Thats my old boat in Lake Cumberland with the Arnesons. Most HP i could run through the B3 XR drives was 650hp. The gears would start to pit in 35hours of use. With a 2.0 ratio and 28pitch B3 prop...
Forum: Outerlimits
05-28-2021, 03:15 PM
Replies: 1
Views: 684
Posted By 47EXCALIBUR

you need to use two wrenches on the underside of...

you need to use two wrenches on the underside of the cleat. One on the nut and the other on the bottom of the threaded section
03-22-2021, 12:26 PM
Replies: 8
Views: 755
Posted By 47EXCALIBUR

hammer and dolly the surface of the reservoir...

hammer and dolly the surface of the reservoir flat to get it to seal better. Ive seen that happen before
03-22-2021, 10:57 AM
Replies: 8
Views: 755
Posted By 47EXCALIBUR

there are plastic washers that go between the...

there are plastic washers that go between the pump and the reservoir case where the bolts go in. You probably have one that is no good or slipped out of place.
Forum: Outerlimits
03-10-2021, 10:28 AM
Replies: 3
Views: 891
Posted By 47EXCALIBUR

32-33 pitch 18 degree 17.5-18 diameter is where...

32-33 pitch 18 degree 17.5-18 diameter is where you will be with that power and gear ratio

try Cobra power for used props. They have a prop swap program with what they have available
Showing results 1 to 25 of 274
 


 
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