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cooling an10

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connorstexas

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« on: May 16, 2016, 09:15:37 AM »
is an10 big enough for cooling the motor? anybody run an10?


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GT Jets

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« Reply #1 on: May 16, 2016, 09:22:47 AM »
How much HP?
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« Reply #2 on: May 16, 2016, 09:24:30 AM »
Mine just had -8 as does my friends boat but I'm no more than 500 and he's maybe 550.

Garrett


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« Reply #3 on: May 16, 2016, 09:37:12 AM »
Jimpen runs -8 and he has an est. 850-875 just on motor and he runs right at 150 ish temp


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connorstexas

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« Reply #4 on: May 16, 2016, 10:10:19 AM »
about 500hp. and cool thank you! still regulate it with the -8? or straight flow since it's not too big?


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GT Jets

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« Reply #5 on: May 16, 2016, 10:18:15 AM »
about 500hp. and cool thank you! still regulate it with the -8? or straight flow since it's not too big?


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You MUST regulate it. A simple gate valve is adequate.

JMO

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If i get some free time tonight at work, ill play with it and post it for everyone to see.

Time to man up and yank it John!  :banghead:
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« Reply #6 on: May 16, 2016, 10:40:05 AM »
1/2 gate valve on an10 ok to run? any advice on how to get water running through the intercooler?


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« Reply #7 on: May 16, 2016, 10:46:37 AM »
1/2 gate valve on an10 ok to run? any advice on how to get water running through the intercooler?


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I never use less than a 3/4" valve.
  • Boat #1: 1992 Carrera 20.5 Elite (I/O bitches)
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If i get some free time tonight at work, ill play with it and post it for everyone to see.

Time to man up and yank it John!  :banghead:
Ray

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« Reply #8 on: May 16, 2016, 10:46:53 AM »
im using 5/8" hose with a 3/4 gate valve. I have a very hard time making heat in the engine for what its worth.

Can barely see 140*

single dump, estimated 450 hp or so
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connorstexas

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« Reply #9 on: May 16, 2016, 10:49:29 AM »
is that 140 with it all the way open or what?


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« Reply #10 on: May 16, 2016, 10:50:35 AM »
is that 140 with it all the way open or what?


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im open somewhere between 3/4 and 1 turn. its barely open
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connorstexas

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« Reply #11 on: May 16, 2016, 10:51:33 AM »
oh that's not bad at all. could I get away with the 1/2? since it's not even opened that much..


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steves86ta

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« Reply #12 on: May 16, 2016, 10:53:20 AM »
oh that's not bad at all. could I get away with the 1/2? since it's not even opened that much..


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i dont know. If you already have the 1/2 you could try it.

I have an oil temp gauge also, and after a lot of hard running ive only seen it around 180 a couple of times. It keeps my ish cold...

Is your 2jz aluminum block? Aluminum head?
1980 Bahner 21' Mini Day
1968 Rogers project

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« Reply #13 on: May 16, 2016, 10:53:50 AM »
im open somewhere between 3/4 and 1 turn. its barely open

Dump fitting ID is too large. You should be in the 5/16" to 3/8" range. Just the bulkhead fitting,  nothing else.  Headers right? Where do your headers come in?
  • Boat #1: 1992 Carrera 20.5 Elite (I/O bitches)
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If i get some free time tonight at work, ill play with it and post it for everyone to see.

Time to man up and yank it John!  :banghead:
Ray

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« Reply #14 on: May 16, 2016, 10:55:27 AM »
Dump fitting ID is too large. You should be in the 5/16" to 3/8" range. Just the bulkhead fitting,  nothing else.  Headers right? Where do your headers come in?

im pretty sure its a 3/8 dump fitting. its home now guess i could finally measure it

One dump, the headers are ran dry but i do have a valve if i want to inject water. I dont since i have the wideband now.

The only thing besides the dump is the steam line dump whcih is 1/4"
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« Reply #15 on: May 16, 2016, 11:00:17 AM »
im pretty sure its a 3/8 dump fitting. its home now guess i could finally measure it

One dump, the headers are ran dry but i do have a valve if i want to inject water. I dont since i have the wideband now.

The only thing besides the dump is the steam line dump whcih is 1/4"

Steam line?

Do explain.

GT
  • Boat #1: 1992 Carrera 20.5 Elite (I/O bitches)
  • Boat #2: 19' Bubble deck Jet BBC Berkeley
If i get some free time tonight at work, ill play with it and post it for everyone to see.

Time to man up and yank it John!  :banghead:
Ray

connorstexas

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« Reply #16 on: May 16, 2016, 11:05:04 AM »
I'm going to have a turbo dump so no water through exhaust anywhere. and it's an iron block with an aluminum head (I believe the heads aluminum)


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« Reply #17 on: May 16, 2016, 11:05:13 AM »
Steam line?

Do explain.

GT

cliff notes

LS engines have a "steam port" at all 4 corners of the heads. In a car, typically the rear ones are blocked off and the front two are sent back into the cooling system. (atleast the newer ones early ones had all 4 going to the radiator)

I plumbed all 4 into a tee then overboard. If you dont its been discovered it can cause hot spots.. I did all 4 to be safe

Couple of pics



*OLD PIC*



hard to see, but you can see the rear two

1980 Bahner 21' Mini Day
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« Reply #18 on: May 16, 2016, 11:06:27 AM »
I'm going to have a turbo dump so no water through exhaust anywhere. and it's an iron block with an aluminum head (I believe the heads aluminum)


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I think you will be fine. But if you dont have the valve alreay, it should only cost a couple more dollars to get the 3/4 valve. I think i paid like 9.00 at lowes for mine
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connorstexas

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« Reply #19 on: May 16, 2016, 11:10:26 AM »
thanks guys. any opinions on how hot/cold I should be running. I've heard people say to cold is bad?


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connorstexas

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« Reply #20 on: May 16, 2016, 11:10:38 AM »
and not hotter an 200


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« Reply #21 on: May 16, 2016, 11:14:02 AM »
thanks guys. any opinions on how hot/cold I should be running. I've heard people say to cold is bad?


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to cold can be bad. Can create moisture in the oil and appear like a milkshake...

the closer you can get to 170 or so would be best i would think.

What fuel are you planning on running?

I keep an eye on my oil temp not so much the engine temp. And i tend to keep the oil temp under 180 but above 150 or so. And i dont seem to have to much moisture in the oil. But still get a slight bit in the valve covers
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« Reply #22 on: May 16, 2016, 11:17:58 AM »
GT is by far the expert on this, im just sharing what i know
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« Reply #23 on: May 16, 2016, 11:26:39 AM »
any advice on how to get water running through the intercooler?


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I have a separate dedicated line & pick up with a through hull type fitting to feed the intercooler. Pick up is through the ride plate.

This is on a blower/cooler deal. No idea if it's done similar on turbos.
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connorstexas

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« Reply #24 on: May 16, 2016, 11:27:58 AM »
makes sense. he's like the Albert Einstein of boats


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