DR. ON POINT

Thinking about throing a DOHC Vtec head on the old LS, but I was wondering how the hell do u get a oil feed line to the turbo, the oil prssure line and the oil line that goes to the vtec head all together and still having a sensor there?

What has everyone done


[Modified by On Point EK!!!!!!!!, 2:46 PM 9/9/2002]

Smashback

I suppose you could run an AN 4 way adapter...hose from engine to one, hose to turbo to one, vtec to another, and use adapters to connect the pressure sensor to another.

Or you could always feed one from there and use a tee for the pressure sensor, and use a Z10 oil pump fitting to feed the other.

BoOsTeD_eK

I would disconnect the oil pressure switch and run your line to the head from there. The go to viren and tell him I need a z10 oil fitment for my oil pump...plug that and tee from there your oil supply to the turbo and your oil pressure gauge line.

Extreme

The "tab" that z10 created pumps out unfiltered oil, probably not good for turbo.

@ the block : 1/8 bspt to 4AN adaptor

12" braided 4an line

1st 4AN 3 way tee 1 in 2 out:
1st out go to turbo using a 24" braided 4an line
2nd out goes to next tee

2nd 4AN 3 way tee 1in 2 out:
1st out go to vtec head using a 18" braided 4an line
2nd out goes to sender adaptor

4an to 1/8 bspt adaptor for oem oil pressure sender
-or-
4an to 1/8 npt adaptor for aftermarket sender
-or-
use a 3rd 3 way tee and use both.

Nice thing about this setup is you can rearrange/remove the tees easily.

qwkteg125

the oil pressure sender location isn't filtered oil either...

Ri5e

what you can do is, run an oil line from the back of the block up to the firewall. From there connect 2 Ts. You will have 3 sources, 1 for the sensor, 1 for the turbo, and 1 for the vtec. Although you might deprive the turbo of oil for 2 seconds.

Thats how I have it on my car, except I have no VTEC. But the turbo has been running for a long time.

gsr squirrel

http://www.c-speedracing.com/howto/lsvtec/lsvtec.html

Ray

3000+ post and you've never seen a oil line tee fitting???

haha, tuff guy signature

Extreme

Do tell . . . .

The oil pressure sender port is tapped off the main oil gallery.

Oil pump picks up unfiltered oil from the pan thru the pickup tube.

Then pressurize and send the oil thru the feed tube (the z10 tab);

thru the "tube" that runs from the oil pump to the lower part of the oil filter housing;

then into/thru the oil filter medium and out via the feed tube (threaded filter nipple);

that tube is feeding filtered oil into the main oil gallery.

You can see that the sender port and the feed tube is on the same plane.

Take off the filter and the sender, insert a wire or fish tape into the feed tube,

make it turn left at the end and you'll see it pass by the back of the sender port.

inspyral

You could run the feed for the turbo and head from there, then run the oil pressure from the oil pump via the Z10 adapter.

qwkteg125

that "tube" where the oil pressure switch is before the oil filter. and that tube is where oil travels from the oil pump. hence, the oil from this spot has not been filtered yet.

DR. ON POINT

no I have, I just wasnt sure if there was enough oil/pressure to get it all from the same source.

boomslang

Nope, incorrect. There is more than meets the eye when it comes to the oil passages in the block. The oil at the sender port is filtered. The passages route the oil back towards the sender after it has gone through the filter. At a quick glance, it doesn't look this way, but when you have a block totally stripped down, you can see it clearly.

Speed PHreak

Just another another T in there for your VTEC oil line.

Extreme

Thankyou for the clarification.

Ray

If you are determined to tap a filtered oil source then get a remote oil filter and tee off after the returning oil plus you can leave the stock pressure sensor alone. Instead of using two tee fittings you can one buy cross fitting.