What are the differences? Why the need to have a GSR oil pump on a LSVTEC?

Thanks

 

Vtec comsumes more oil especially in the higher powerband...dont quote me on that

 

the oil pressure is greater, which is necessary when youre bringing your ls bottom end 8000+ rpms.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by ALMXDUPINTEGRA &raquo;</TD></TR><TR><TD CLASS="quote">What are the differences? Why the need to have a GSR oil pump on a LSVTEC?</TD></TR></TABLE>
This next quote is taken from a post by Len, an H-T member, Type-R owner, and parts guy at Baranco Acura (GA):

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by len &raquo;</TD></TR><TR><TD CLASS="quote">What is the difference between the OBDI vs. OBDII Oil Pumps?
The newer P72/OBDII Oil Pump is updated so it flows better than the PR3/OBDI Oil Pumps. The P72/OBDII Oil Pumps have provisions to mount a crankshaft fluctuation sensor (CKF Sensor). It is a common myth amongst many that there is a specific ITR Oil Pump. In reality all 1996 and up Integras (OBDII) share the same part number for their oil pumps. The OBDII Oil Pumps will fit on OBDI engines if you change out the lower timing belt cover to the OBDII one or just hack it to fit with a dremel. Your choice. They physically will interchange with one another.</TD></TR></TABLE>
That quote is found in this post:

https://honda-tech.com/zerothread?id=977771

I don't know if this is true or not, but I'd assume an Acura parts guy knows what he is talking about.

JD

 

so 96+ integra's all use the same oil pump...cool

 

I find that odd. Both the 1994 and 1998 Integra service manuals state 71 litres per minute of oil displacement for the GS-R and ITR. I think it was 50 for the LS in both instances.

I know my 92 GS-R, with (I assume) the stock oil pump, hits 80 psi over 4000 rpm. Where as my buddy with a 92 GS hits 60 psi at 4000 rpm

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by 99IntegraGS &raquo;</TD></TR><TR><TD CLASS="quote">

I don't know if this is true or not, but I'd assume an Acura parts guy knows what he is talking about.

JD</TD></TR></TABLE>

it is true, all integras (including ITR and GSR) 96-01 use the 15100-P72-A01 oil pump.

yes, i am an Acura parts guy

no, only some of us know what we are talking about

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by b17gsr &raquo;</TD></TR><TR><TD CLASS="quote">I find that odd. Both the 1994 and 1998 Integra service manuals state 71 litres per minute of oil displacement for the GS-R and ITR. I think it was 50 for the LS in both instances.

I know my 92 GS-R, with (I assume) the stock oil pump, hits 80 psi over 4000 rpm. Where as my buddy with a 92 GS hits 60 psi at 4000 rpm</TD></TR></TABLE>

For the LS it states minimum of 50 lbs at 3K rpms. My 275K mile 92 RS has 75 lbs of oil pressure at 4K rpms. Not bad for a very old oil pump.

Remember if you use the 96 or newer oil pump and you have an older LS block, you will need to modify the lower cover or buy a 96^ lower cover.