bowtieman81

iTrader: (35)

I know a lot guys port the oil pump, or buy a ported one. However, I have not heard of anybody porting the oil passages in the oil pan. I was looking at mine and thought the smoothing out the rough edges on the passages going into and out of the filter might be a good idea. Any thoughts on this?

hiltsy855

iTrader: (35)

I know this is an old thread. But I was cleaning up the pan for my build and noticed the restrictive port that feeds the filter thru the pan rail. I see people porting the oil pump inlet & outlet all the time but the pan passage looks more restrictive than anything in the pump. I used a die grinder to open up the port but I was curious to know if anyone else has run into this.

orangeapeel

iTrader: (18)

wow, this is an OLD thread.

kmracer

iTrader: (1)

but good, i'd like to see some pictures.

orangeapeel

iTrader: (18)

Im just wondering if you hog them out too much if that becomes a stress point for a crack or fracture to develop. Not to scare you or anything. Lets see a picture if you havent buttoned it up yet. That would probably help me figure out what you changed.

Isolde

iTrader: (4)

Damn, never thought of this. I have a spare pan, I could probably tackle tonight or tomorrow.

hiltsy855

iTrader: (35)

I didn't take any 'before' pics but I'll post one of the ported pan tonight.

hiltsy855

iTrader: (35)

Here are a couple pics. I ported the port from the pump (forward on the pan) that fills the outside of the filter. I wish I would have taken a pic prior to show how restrictive it was. Looking at the pic I think I could do a little more work opening and radiusing the port from the bottom.

99 2500

Let us know how it works out, lower or higher pressure than before.

Damian

iTrader: (89)

HIltsy, let us know how it works out. I've been wanting to experiment with some of this stuff, but preferred to do it on my own car rather than a customers car. Unfortunately I don't own an LSX powered vehicle right now so my experimentation has been put on hold.

Post oil pressure results when you can.

raven154

iTrader: (14)

Oil pressure should raise slightly if anything since the sender is after the restriction you cut out. I bought a new melling high volume high pressure pump and may do this if I can get the pan out with the engine in the car.

hiltsy855

iTrader: (35)

I'll post my numbers in a couple months but I changed so many other things (bearings, ported / shimmed pump) I don't know if they'll mean much. It should help some. Like I said before - that port looks more restrictive than the pump outlet.

orangeapeel

iTrader: (18)

I hope it holds some good pressure! Im anxious to find out actually. Subscrizibed.

-Joseph-

iTrader: (12)

I've been doing this for 8 years on the one with poor machining - Some are worse than others. Don't know of any oil pressure differences from fixing that area, almost all that I've done were engine replacements/buildups.

Pics are also in my LS Engine book.

orangeapeel

iTrader: (18)

^^^^ Im gonna need a free copy.


signed of course.

66 BADBOY

iTrader: (2)

That's cool, cuz I just ordered your book two days ago!! Think I might just give this a shot.