fot
[Top] [All Lists]

Re: [Fot] Drilling oil passages from main gallery to mains

To: Tony Drews <tony@tonydrews.com>
Subject: Re: [Fot] Drilling oil passages from main gallery to mains
From: rkrantz77@comcast.net
Date: Mon, 18 May 2009 17:23:05 +0000 (UTC)
You are correct if there are casting flaws causing a restriction to the oil
flow in the block.B  The real problem is in the crankshaft and oil hole size
out to the rods.

Ron K

ReK Racing
----- Original Message -----
From: "Tony Drews " <tony@ tonydrews .com>
To: "Greg & Alison Blake" <ablake2@ austin . rr .com>, fot @ autox .team.net
Sent: Monday, May 18, 2009 10:54:09 AM GMT -05:00 US/Canada Eastern
Subject: Re: [ Fot ] Drilling oil passages from main gallery to mains

One of the uncle jack tricks was to slightly drill out the center
main oil passage. B Don't have a diameter, though. B Since it feeds two
rods instead of one it seemed like the thing to do. B This is
mentioned in item four of the "Block" section of the engine building tips
here:
http :// www . tonydrews .com/ uncle_jacks_engine_building_tips . htm

- Tony

At 10:52 PM 5/14/2009, Greg & Alison Blake wrote:
>In a TR3/4 block, is there an advantage to drill out the oil passages
>from the oil gallery to the mains? B If so, what size is optimal?
>Neglecting (a lot of things) oil surges and viscosity break down etc.,
>is the oil pressure in the system constant for a given RPM? B If pressure
>in the system is constant, when I open up these supply holes more oil
>would flow to the main and follow on to the rods due to a greater cross
>sectional area for the same pressure and oil supply to the valve gear
>would be unaffected because the pressure in the oil gallery is constant
>and I have not changed the cross sectional area for the passage to the
>valve gear.
>
>Do I have this correct, or am I all oily?
>
>Thanks,
>
>Greg
> _______________________________________________
>Support Team.Net http :// www .team.net/donate. html
>
> http :// www . fot -racing.com
>
> Fot mailing list
> Fot @ autox .team.net
> http :// autox .team.net/mailman/ listinfo / fot
_______________________________________________
Support Team.Net http :// www .team.net/donate. html

http :// www . fot -racing.com

Fot mailing list
Fot @ autox .team.net
http :// autox .team.net/mailman/ listinfo / fot
_______________________________________________
Support Team.Net http://www.team.net/donate.html

http://www.fot-racing.com

Fot mailing list
Fot@autox.team.net
http://autox.team.net/mailman/listinfo/fot

<Prev in Thread] Current Thread [Next in Thread>