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Messages - Tikotiko

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1
Engine Mechanical / Electrical / Re: Octane choice
« on: June 30, 2020, 01:17:59 PM »
my factory marine power 454 has " 8:0 " compression.  more likely 7.8. i always run 87 no problems there. 


The ONLY way to know what you need, is to know your compression. 

you can also do a compression check to get a feeling for cylinder pressure and work backwards with the cam from there.

and for all those that say "always 91 in a boat"  just remember that if you dont have enough compression, the motor will actually perform WORSE with the higher octane.

Second - altitude makes a big difference too as the air, and therefore compressed air is less dense. Thats why places with high elevations offer 85 octane fuel at the pumps.

where are you boating?
Lake perris and hopefully the river soon

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2
Engine Mechanical / Electrical / Re: Octane choice
« on: June 29, 2020, 07:02:48 PM »
Be safe go 91


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Found some info on the cam. 8.4.1 compression ratio.

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3
Engine Mechanical / Electrical / Re: Octane choice
« on: June 29, 2020, 06:52:17 PM »
Be safe go 91


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Ok will do thank you

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4
Engine Mechanical / Electrical / Re: Octane choice
« on: June 29, 2020, 06:03:27 PM »
Compression?


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I wish i knew

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5
Engine Mechanical / Electrical / Octane choice
« on: June 29, 2020, 05:38:50 PM »
Quick question. I got into a discussion today at work. This dude was telling me he has to run 91 octane on his stock 460 for his boat. I told him i run 87 because the previous owner told me thats what he ran and it doesnt matter if I put in it, its gonna eat it up regardless.
I have a 460 with a rv cam. What should i be running but most importantly Why?
I dont know anything about my compression thanks guys

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6
Boat Showcase / Re: Hallett Mini Cruisers...Lets see em!
« on: June 29, 2020, 01:08:00 PM »
Is it too late to in on this one?

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7
Engine Mechanical / Electrical / Re: Holley 4160 help
« on: June 29, 2020, 09:47:07 AM »
we have a 750 Vacuum sec carb on my brothers commander 2100 with a 454, we have been playing with the secondary springs.  right now we have gone from the original black spring (which never fully opens) to the purple and now to the orange.  we might go back up one step as there is ever so slight a bog when the secondaries kick in. 

* results may vary *  haha, just to give you a starting point.
Niiice thanks for the tip

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8
Boat Showcase / Re: 1976 Southwind Day Crusiser Restoration
« on: June 28, 2020, 07:00:11 AM »
Just saw your build. Incredible work. Wow

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9
Engine Mechanical / Electrical / Re: Holley 4160 help
« on: June 26, 2020, 06:58:28 PM »
Fyi everyone incase you like digging in and learning everything about something like me. The 4160 series of Holley carbs made different model numbers including 3310-1 thru 3310-11. From 3310-4 and up they got rid of the power valve cavity on the main secondary side which eliminated the need for the secondary blacking plate that goes behind the metering plate.

On another note i could up upgrade to a Metering block on the socondary side but thats just more tuning for a rookie like myself and it doesn't sound fun especially since i have a  Yamaha Banshee that always likes to be tuned

I did upgrade the vacuum secondary with an easy spring change cap. And will be playing with some springs to see if I can get the secondary to work better. Tanks are still on the back burner due to a lack of time. Hoping to just make it passed this season with these unless the overtime stays steady. Im probably making them to be honest.


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10
Engine Mechanical / Electrical / Re: Holley 4160 help
« on: June 25, 2020, 07:43:33 PM »
Yeah even the schematic did.


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So in other words the carb is ready and i got my new filter setup in so maybe just maybe i can have it all back together this weekend.

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11
Engine Mechanical / Electrical / Re: Holley 4160 help
« on: June 25, 2020, 07:42:13 PM »
Yeah even the schematic did.


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Well i learned more today. The backing plate is only necessary if the secondary side of the main has a power valve cavity on it which mine doesnt. It makes total sense in order the keep the gasket in check behind the metering plate.

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12
I have to agree. Pics of the boat please

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13
Engine Mechanical / Electrical / Re: Holley 4160 help
« on: June 24, 2020, 07:21:20 AM »
https://www.holley.com/products/gaskets/carburetor_gaskets/parts/108-122


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Thank you. Everywhere i looked it was called a backer or backing plate so i couldn't find it. I was going to call holley today

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14
Engine Mechanical / Electrical / Re: Holley 4160 help
« on: June 24, 2020, 06:52:27 AM »
Also are you talking about the thin metal plate?


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Yes the thin plate that goes between the main and the metering plate

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15
Engine Mechanical / Electrical / Re: Holley 4160 help
« on: June 23, 2020, 09:31:08 PM »
Do you have access to a schematic


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No sir

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16
Engine Mechanical / Electrical / Holley 4160 help
« on: June 23, 2020, 08:59:27 PM »
Anyone that knows about Holleys please. So as im putting everything back i realized that on the secondary side im missing the Metering plate BACKING PLATE. It was never there. Should be a gasket, Backing plate, gasket, metering plate not block like the primary then the float and bowl assembly. How bad is this going to be not having the backing plate

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17
Engine Mechanical / Electrical / Re: Came up with this bright idea
« on: June 22, 2020, 04:17:25 AM »
Nope never heard of it

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Hes on Youtube. Anything missing from these cars he finds is Weight reduction. My wife can't stand him but i find him to be pretty funny sometimes

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18
Engine Mechanical / Electrical / Re: Came up with this bright idea
« on: June 21, 2020, 07:24:35 PM »
Pay attention to the meter plate gaskets. If I remember right, they can fit either way but the holes might not line up exactly. I think it may have been Brad who had that issue.


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Thanks for the tip

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19
Engine Mechanical / Electrical / Re: Came up with this bright idea
« on: June 21, 2020, 07:24:09 PM »
Great organization skills....when i do stuff i all ways end up with a extra bolt or screw left over...so of it works out and runs i just call it weight reduction hahahaha

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Do u watch Vice Grip Garage too?

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20
Engine Mechanical / Electrical / Re: Came up with this bright idea
« on: June 21, 2020, 08:46:51 AM »
Good luck. Once you wrap your brain around the carb itís not too difficult.


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Just finished taking it completely apart and its not that bad. I took a ton of pics to keep track of the little tiny things. But every section is in its own container and labeled so hopefully it'll be done today but i dont want fathers day to be carb rebuild day.

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21
I have one after the fuel pump. Just canít see in pic


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Dude. Your plumbing looks great. Ill be upgrading all my lines to AN once i get the new tanks. Im even considering making my own tanks but we'll see what happens. Im kinda crazy like that.

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22
Engine Mechanical / Electrical / Came up with this bright idea
« on: June 21, 2020, 07:45:53 AM »
Got everything i need to a complete rebuild on the old Holley here. After watching several videos i learned that i was missing the inlet filters which came in yesterday and boy oh boy. What are those things? Brass filters? Anyway... i decided to get some small tubs so i dont get anything mixed up or lost. Wish me luck. I see new tanks coming in a month or so we'll see what the new job brings in. Im starting at the San Manuel project with Penta is any of you are out there let me know. Oh and Happy Fathers Day guys.

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23
Hereís mine.


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So what im seeing is that I Cannot have one with a clear water bowl . After what happened to this ol gal i wish i can keep an eye on things

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24
Engine Mechanical / Electrical / Fuel filters with water separators
« on: June 20, 2020, 08:22:13 PM »
What should I be looking for. Im looking around and can't seem to figure out what i need.

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25
Engine Mechanical / Electrical / Re: Quadrajet or holley 3310-4
« on: June 20, 2020, 11:30:01 AM »
The question is, is that the original carb to the boat???

if its original, hands down run the quadrajet. if its not run the holley.
Thats a good question

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