im starting a new motor build on a high boost ls and i would like to know some pros and cons on using a gsr-type r oil pump compared to a ls oil pump

 

Cons- more expensive
Pros- Better flow and oil pressure at high rpms, a must have if doing Ls/Vtec

 

I believe if you order a new LS pump it is the same pump as the GSR now.
Glenn

 

all the pumps have the same part number now.

 

Ive compared them both side by side and found the LS pump to have a thicker gear than the ITR. More volume at lower rpm's? Ive never compared the pressure relief valves but assume its higher on the ITR unit...
Im still trying to figure out why the LS would need more volume than a vtec pump at the same rpm

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by SOHCD16y8 &raquo;</TD></TR><TR><TD CLASS="quote">Cons- more expensive
Pros- Better flow and oil pressure at high rpms, a must have if doing Ls/Vtec</TD></TR></TABLE>

i thought higher oil pressure is not good for forced induction, stick with the LS one

 

what about a b16 oil pump?

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by crazi92hb &raquo;</TD></TR><TR><TD CLASS="quote">what about a b16 oil pump?</TD></TR></TABLE>

not too sure but if theres nothing wrong with your oil pump, stick with the LS one.

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by PyroProblem &raquo;</TD></TR><TR><TD CLASS="quote">Ive compared them both side by side and found the LS pump to have a thicker gear than the ITR. </TD></TR></TABLE>

the LS gear is thicker. for forced induction, if the LS oil pump aint broken, keep it. Its obvious to use the type R oil pump for all motor though.

 

Endyn oil pumps

 

for FI all u need is 60psi at wot, and n/a u can shim the pump and get up to 90psi at wot.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by jdmhonda &raquo;</TD></TR><TR><TD CLASS="quote">for FI all u need is 60psi at wot, and n/a u can shim the pump and get up to 90psi at wot.</TD></TR></TABLE> exlpain why you don't want high psi in a boosted application.... please.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by coneheadsracing &raquo;</TD></TR><TR><TD CLASS="quote"> exlpain why you don't want high psi in a boosted application.... please.</TD></TR></TABLE> because if you like your turbo's oil seals you dont want to much pressure

 

small feed line, restrictor if needed... so you are gonna not run higher oil pressure to save your turbo, yet risk smoking a bearing, makes sense...... any other ideas.

 

it obviously also depends on what kind of oil (and possibly filter) you use. Before I used conventional motor oil with a honda oil filter (with the LS oil pump) and had only 20psi at idle and 60psi at WOT. When i switched to Mobil1 full-synthetic and a Mobil1 oil filter (still LS oil pump), I noticed the 25psi at idle now and 65psi at WOT. probably better for the actual motor and yea, their bearings, but i hope i dont risk blowing my seals on my turbo. Upgrading to a type R oil pump will just add more pressure that i don't need.

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by coneheadsracing &raquo;</TD></TR><TR><TD CLASS="quote">small feed line, restrictor if needed... so you are gonna not run higher oil pressure to save your turbo, yet risk smoking a bearing, makes sense...... any other ideas.</TD></TR></TABLE>

more people blow their turbo seals at high pressure vs smoking a bearing at low pressure.

 

but if u get an oil restrictor that goes into the turbo then why worry about running such low oil PSI?

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by PyroProblem &raquo;</TD></TR><TR><TD CLASS="quote">Ive compared them both side by side and found the LS pump to have a thicker gear than the ITR. More volume at lower rpm's? Ive never compared the pressure relief valves but assume its higher on the ITR unit...
Im still trying to figure out why the LS would need more volume than a vtec pump at the same rpm </TD></TR></TABLE>I think you have that reversed. The gsr/typeR/b16 pump has a much thicker gear. The part # you want is
15100-P72-A01
There is nothing better that Honda offers.
A thicker gear will give you more pressure and volume thru the entire rpm range. Max pump pressure is controlled by the relief valve

 

I've never seen any part #'s on oil pumps. How do u tell the difference between ls and gsr.

 

I'm wanting to run a gsr oil pump on my boosted LS, its a 93 motor, do I need to buy the oil pump for my year, or does the year matter?

 

so I have a question now that its kinda on topic...
first, I have a d16y8 pump, and a z6 pump. I've heard the z6 is better because z6 blocks usually have better oil pressure. Anyone know if thats true or not?
The reason I'm asking is because the y8 pump has low miles so I could reuse it, but the z6 has real high mileage. I'm trying NOT to have to buy one if I don't have to...

 

The Jdm b16/b18c/typer oil pumps are 84mm and the US ones are 80mm, would that make a difference in oil pressure. I have a circuit worx oil pump gear in my jdm 84mm oil pump and I saw around 90 psi. the pump wasn't shimmed either.