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Search: Posts Made By: Trash
Showing results 1 to 25 of 500
Search took 0.03 seconds; generated 82 minute(s) ago.
Forum: General Q & A
03-13-2026, 03:18 PM
Replies: 26
Views: 1,470
Posted By Trash

That would not cause the issue he is having.

That would not cause the issue he is having.
Forum: Do It Yourself, Boating on a Budget
10-20-2025, 10:28 AM
Replies: 12
Views: 1,226
Posted By Trash

I would lay money your impeller is due for an...

I would lay money your impeller is due for an overhaul.
Forum: Drives and Lower Units
10-12-2025, 01:41 PM
Replies: 14
Views: 1,171
Posted By Trash

Sounds like a prop hub to me.

Sounds like a prop hub to me.
Forum: General Q & A
10-07-2025, 10:20 AM
Replies: 19
Views: 2,073
Posted By Trash

I don't mean to derail this thread, but to answer...

I don't mean to derail this thread, but to answer your question SB I have run two different sets of heads. First set were a pair of Dart Iron Eagle 165cc runner with 1.92/1.60 valves. No issues. ...
Forum: General Q & A
10-06-2025, 10:10 AM
Replies: 19
Views: 2,073
Posted By Trash

I run a Crower hyd roller 221/230 @.050" and...

I run a Crower hyd roller 221/230 @.050" and 525/545 lift on a 1.5 rocker, 377 stroker with stock (GLM) exhuast and 4" thru hull. Over 300 hours on the motor to date. No reversion issues. Just a...
Forum: General Q & A
09-08-2025, 09:20 AM
Replies: 53
Views: 13,453
Posted By Trash

Not sure your analysis is accurate on this. I...

Not sure your analysis is accurate on this. I don't think there is any consideration for gas vs liquid (exhaust vs lake water) regarding compressibility. I believe there is an error in your math. ...
Forum: General Q & A
08-20-2025, 08:29 PM
Replies: 11
Views: 1,015
Posted By Trash

Both are MEFI 1. My MEFI Burn is on a dual boot...

Both are MEFI 1. My MEFI Burn is on a dual boot MacBook Pro and getting a screen shot from the Win XP Pro side over to a system I can post the picture is too much work. I'm lazy,,lol. Those tables I...
Forum: General Q & A
08-20-2025, 10:15 AM
Replies: 11
Views: 1,015
Posted By Trash

I apologize for the formatting but for additional...

I apologize for the formatting but for additional reference this is from a Marine Power 454 MEFI 1 table and a 1995 Merc 350 Mag EFI MP Mefi 1 table.Like Artic says these also employ a spark...
Forum: General Q & A
08-15-2025, 09:07 AM
Replies: 5
Views: 746
Posted By Trash

If it is running fine I would just run it. One...

If it is running fine I would just run it. One more item to check is the wiring to the knock sensor. That can trip some funky codes. I personally have not had that happen but I think some others...
Forum: Prop Talk
08-09-2025, 03:50 PM
Replies: 7
Views: 1,604
Posted By Trash

19" pitch is where you need to be. Get a Merc...

19" pitch is where you need to be. Get a Merc stainless 3 blade and call it good. You will not see any drastic performance gains by doing so. What I mean is that you aren't going to gain more than...
Forum: Prop Talk
07-31-2025, 09:50 AM
Replies: 7
Views: 1,604
Posted By Trash

Need a little more information. What is the max...

Need a little more information. What is the max rpm you are seeing with the current prop?

To be honest you are likely in the ideal range for prop pitch with that motor and outdrive ratio. You...
Forum: General Q & A
07-19-2025, 12:09 PM
Replies: 14
Views: 1,649
Posted By Trash

It is either your MAP sensor or the mechanical...

It is either your MAP sensor or the mechanical fuel pump....yes mechanical fuel pump....I know its injected but check the mechanical pump output. If the mechanical pump does not feed the...
Forum: General Q & A
07-07-2025, 10:10 PM
Replies: 5
Views: 690
Posted By Trash

You will notice no performance gains but will...

You will notice no performance gains but will have a lighter wallet.
Forum: General Q & A
06-12-2025, 10:45 AM
Replies: 10
Views: 1,366
Posted By Trash

I believe you can attain the HP goal you are...

I believe you can attain the HP goal you are looking for with that system, assuming the injectors are sized accordingly. I can't speak for all MEFI systems but my 1995 era MEFI 1 has been very...
Forum: Drives and Lower Units
05-30-2025, 09:26 AM
Replies: 1
Views: 2,320
Posted By Trash

Check the throttle linkage.

Check the throttle linkage.
Forum: General Q & A
05-30-2025, 09:25 AM
Replies: 13
Views: 3,217
Posted By Trash

What lake / altitude are you boating at? I...

What lake / altitude are you boating at? I noticed Utah plates and believe altitude is your biggest problem.
Forum: General Q & A
05-10-2025, 03:11 PM
Replies: 10
Views: 1,366
Posted By Trash

So you are considering placing the 502 MEFI stuff...

So you are considering placing the 502 MEFI stuff on a 454 correct? Yes it will work and yes it will be tunable. It will require, in my opinion, very little modification in the fuel tables and...
Forum: General Q & A
04-13-2025, 09:47 PM
Replies: 35
Views: 3,977
Posted By Trash

STOP…..go back to what SB said. you...

STOP…..go back to what SB said.

you changed way too many variables AND went Up in pitch by 4 in and nearly an inch in diameter.
Forum: General Q & A
03-23-2025, 10:32 PM
Replies: 29
Views: 4,187
Posted By Trash

Yuuup

Yuuup
Forum: Do It Yourself, Boating on a Budget
03-19-2025, 10:33 PM
Replies: 13
Views: 1,210
Posted By Trash

Where in So Cal....LA area or San Diego? RC...

Where in So Cal....LA area or San Diego? RC Injection in Torrance does injector cleaning and flow testing. There are also places in San Diego
Forum: Do It Yourself, Boating on a Budget
03-19-2025, 09:31 AM
Replies: 13
Views: 1,210
Posted By Trash

I would start with injectors. In my 30 years...

I would start with injectors. In my 30 years with my existing Merc any running issues have always been fuel related and not plug/wire/rotor etc.
Forum: General Q & A
03-06-2025, 11:57 AM
Replies: 29
Views: 4,187
Posted By Trash

Not sensing sarcasm, but if you are looking for...

Not sensing sarcasm, but if you are looking for 400 ish HP SBC will do the job. More than that gets problematic if naturally aspirated.
Forum: General Q & A
03-06-2025, 10:29 AM
Replies: 29
Views: 4,187
Posted By Trash

I know most of the 350's came with that GM 395...

I know most of the 350's came with that GM 395 cam (288 int./308 exh,, 0.431 int./0.451 exh., 109 LSA , and the 377 Scorpion had the 222/230 .510/.530 114 LSA. The cam for the 383 MPI likely falls...
Forum: General Q & A
03-05-2025, 04:17 PM
Replies: 24
Views: 9,658
Posted By Trash

I have been using MEFI Burn since 2010 for my own...

I have been using MEFI Burn since 2010 for my own application. Can offer some limited guidance as needed.
Forum: General Q & A
03-05-2025, 04:14 PM
Replies: 29
Views: 4,187
Posted By Trash

Simply offered as an FYI reference, I have been...

Simply offered as an FYI reference, I have been using a 221/230 @ .525/.545" on a 114 LSA hyd roller cam in a 377 (Crower cam) with no reversion issues. In my estimation this cam is near, but not at...
Showing results 1 to 25 of 500
 
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