is it okay to tap the oil feed line from the head to the turbo? if not can someone explain please. thanks

 

where at coming off of the head? There was recently a post with the feed coming off the head. IMO i think it would be easier than getting it from the back of the block

 

i have been pondering this question for awhile now, but cant seem to figure it out. i have the book, "how to build high performance honda's" i think vol2 and it shows a 600hp gsr build up with the oil line in front.
this isnt it, but a different motor, but with the oil tapped in the same place.

 

Wouldn't there be oil pressure problems running from the head rather than the back of the block?

 

i was also contemplating to get the oil feed from the vtec oil press sensor

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by junkyard racer &raquo;</TD></TR><TR><TD CLASS="quote">i have been pondering this question for awhile now, but cant seem to figure it out. i have the book, "how to build high performance honda's" i think vol2 and it shows a 600hp gsr build up with the oil line in front.
this isnt it, but a different motor, but with the oil tapped in the same place.
</TD></TR></TABLE>

more info on this would be interesting........

 

I thought someone hooked up an oil pressure gauge to that port and saw it only got pressure at vtec?

ill see if i can dig it up

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by B18EG6 &raquo;</TD></TR><TR><TD CLASS="quote">I thought someone hooked up an oil pressure gauge to that port and saw it only got pressure at vtec?

ill see if i can dig it up</TD></TR></TABLE>

Only 7psi until vtec I believe.

 

yeah ive seen that somewhere also. its been a while. and you dont get any oil pressure until the vtec change over. then after it changes over wouldnt the pressure be too much for the turbo, which could lead to blowing the seals. kind of off topic but what kind of transmission is that? ive never seen the starter up front on a b series tranny?

 

Quotes <FONT COLOR="green">supporting</FONT> oil line form head
Quotes <FONT COLOR="red">advising against</FONT> oil line from head

I tried to avoid hearsay but I was unable to find a quote including numbers off that port. I put the users names next to the URL so u can contact them (heheh they might not like that) HTH

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by https://honda-tech.com/zerothread?id=93550 &raquo;</TD></TR><TR><TD CLASS="quote">From lucas569<FONT COLOR="green">if you read corky bell's book "maximum boost" he states (dont quote me on exact numbers im going from memory) that there should be a minimum of 7 psi and maximum of 30 psi at the oil feed line.

at the oil pressure sender behind the block pressure can easily reach 60 psi leading to blown oil seals. there is nothing wrong w/ using that spot but if youdo id at least use a larger line or some type of restricter to decrease the oil pressure,im sure youve read plenty of posts regarding blown turbo seals. this topic has been debated before.[/green] </TD></TR></TABLE>

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by https://honda-tech.com/zerothread?id=93550&page=2 &raquo;</TD></TR><TR><TD CLASS="quote">From Dee
[color=red]corky bell ..porky smell.. blah blah blah...

The B series do not produce a lot of oil psi at idle but as soon as the revs pick up so does the oil psi. The oil psi at the port near the VTEC solenoid does not increase until VTEC is activated. Do you really want to have 9psi of oil pressure when the turbine is spinning at 100k rpm? I don't think so!</FONT></TD></TR></TABLE>

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by https://honda-tech.com/zerothread?id=93550 &raquo;</TD></TR><TR><TD CLASS="quote">From Dee
<FONT COLOR="red">Don't use the hole near the VTEC solenoid because the pressure variations is really big. About 5 years ago me and a friend connected our oil psi gauges to this port and we freaked out when we saw how low the pressure was until VTEC engaged. There is pressure at this port but good pressure isn't felt until VTEC changeover. </FONT></TD></TR></TABLE>

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by https://honda-tech.com/zerothread?id=297406 &raquo;</TD></TR><TR><TD CLASS="quote">From Tony1<FONT COLOR="red">That plug only has about 7psi until vtec kicks on. DON'T use it for an oil feed. If it was that easy i'm sure everyone would do it!</FONT></TD></TR></TABLE>

edit - did i REALLY think i had all those tags correct? lol ... fixing it!

**** it.

 

A friend of mine uses one thats on the side of the head but its closer to the coolant water neck and its already 1/4". I'm not sure if this ends up being the same oil or not. If it is, maybe I need to update him on the cons of using it.

 

[/QUOTE]

That looks like a nightmare under your hood, with lines and wires running everywhere!

 

we used this port 3 time son one of our motors, and caused us to rebuild 3 turbos........it was on an LS/vtec and we found that there was about zero oil pressure until vtec, hence the reasons for the turbos burning up, in a matter of hours.

note: turbo rebuilders only fall for the "i dont know what happened excuse once" really blue'd bearing means it didnt get enough oil............trust me they know the difference

 

humm very interesting debate....

i think i will/would stick with using the tap at at back of the block.
(why change a good thing)

 

buddy did this on his h22 and it ruined the turbo within a week or two. don't do it

 

I wouldnt use it.The vtec solenoid is really restictive.Better to blow a seal than to burn up a turbo. Plus who knows what they did to that 600hp gsr.When people first started sleeving honda blocks people wondered how the sleeves held up.So who knows why they can use that port.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by boostedej1 &raquo;</TD></TR><TR><TD CLASS="quote"> kind of off topic but what kind of transmission is that? ive never seen the starter up front on a b series tranny?</TD></TR></TABLE>


I believe the car pictured is 88-91 CRX or hatch, so it's more than likely a B-Series Cable tranny... Maybe the starter is positioned differently between cable and hydro...

 

just get a sandwich plate and run it off the back where the oil filter is.

 

I really like to know what oil pres Turbonetics or Garret recommends.
Really interesting topic, I hope there will be alot of usefull replies.

CJ

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by 4U2NV &raquo;</TD></TR><TR><TD CLASS="quote">


I believe the car pictured is 88-91 CRX or hatch, so it's more than likely a B-Series Cable tranny... Maybe the starter is positioned differently between cable and hydro... </TD></TR></TABLE>

The cable tranny in my DA has the starter in the normal location...

 

"just get a sandwich plate and run it off the back where the oil filter is."

i second that motion, since my plain jane T works okay im gonna keep it, but if i had to do it again i would get an oil cooler sandwich plate and do it like that, they work so well and dont leak

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by mrbsponge &raquo;</TD></TR><TR><TD CLASS="quote">"just get a sandwich plate and run it off the back where the oil filter is."

i second that motion, since my plain jane T works okay im gonna keep it, but if i had to do it again i would get an oil cooler sandwich plate and do it like that, they work so well and dont leak</TD></TR></TABLE>

I use the Golden Eagle sandwich plate to supply oil to my gt35. I also have an oil pressure gauge t'd in to the same spot. I see around 15 psi at idle and at top of the rpm its around 75-80ish psi.

 

what about a "T" from where the oil feed meets the head on a ls/vtec setup?
Ive seen it done here but want to see how they held up..

 

WOW!! Somebody used the search engine

Please buy an extra turbo overhaul kit or two if you are planning to use the pressure check point for the VTEC solenoid.

 

Use a source where filtered oil is located