hybrid1990crx

I've been trying to find the right answer to this and when I searched I found mixed answers some saying they are different, some saying they are all the same with different pressure relief springs.

I went on alldata today and compared part numbers. All were for 2000 model years. The part number for each pump are ALL THE SAME. The part # is 15100P72A01.

Now I have a new question. I've heard the JDM pumps are 84mm vs. the usdm pumps being 80mm. What exactly does that mean? Is it the gear size? Which flows better/would be more reliable.

I'm building a boosted b16 and looking for around 350whp. Would the USDM or JDM pump be better for me?

*edit* I have heard that the older b series vtec pumps having different part #'s, but I really don't care about this seeing as you probably can't even get that design anymore.

*edit 2* Ok so I looked up the 95 Del Sol VTEC and 95 gsr oil pump and they have a different part number. 15100PR4A03. Is it possible that honda just decided to run GSR pumps in all their b series motors?

*edit 3* The first year of the ITR that I can look at on AllData is 1998. And it seems to have the 'updated' oil pump #15100P72A01.

hybrid1990crx

Now I just found this thread: https://honda-tech.com/forums/showth...ght=pump+water

How is it that they are all rated different for QPM? I assume that means quarts per minute.

Could it be that the blocks flow differently?

kyden

that might be on older ones. 96+ b series all got the p72 pumps.

TheShodan

iTrader: (14)

Doesn't matter, both work well. The 80mm vs 84mm is in the actual pump gear. Prodrive and Toda make these for engines that consistantly stay in higher rpm ranges for much longer periods of time than your typical drag race scenario

Your OEM pump and gear will be fine for 350whp. There is no need to change unless you're trying to circuit race the car. The FI forum will take care of your other needs.

Yes, now they are all the same.

swapit

They only make one oilpump now and its the gsr one 15100p72a01.I go to the reg. honda dealer an order it for a 00SI its cheaper then the acura dealer.

hybrid1990crx

Is there a benefit to using either?

egb18c5

hybrid1990crx

Thanks you didn't answer my question at all. I know WHY prodrive makes the gears themselves. But what is the benefit of the 84mm gear opposed the the 80mm?

I assume the 80mm spins the pump faster?

blackpearlgsr29

i got a jdm b16 thinks obd1 just bought the long block from h motors started rebuilding it for boost and the only number i seen on the oil pump was on the blades an it said p75? thought it was a ls but people say in older vtec motors they were the same part number

TheShodan

iTrader: (14)

No. the only difference in the Prodrive / TODA gears is the material. They do not "flow" any more than OEM. they are made from better material to keep from destroying themselves in road racing situations or in endurance racing. They don't flow more, spin faster, flip upside down or do tricks.

There were two sizes of pump gears in honda B-series.. In the older generation B16s from 89-91 or so, they used an 84mm sized gear in the pump. Anything after 95 used an 80mm sized gear. If you have a recent motor past 95, use the 80mm gear. But do yourself a favor and open the pump up to measure BEFORE you buy.

f22b2

I read most of the comments
But
I owned a 90 Acura integra with jdm b16a
Obd0 head pr3-4 i believe
The other day i was driving the car and i made a mistake i pull out to much my foot from clutch and the car off when i turn on back my oil light star flashing
My check engine light get on but i just get the 23 code witch is knock sensor that the only code i get no other code
I think my oil pump its bad
What oil pump can used for that engine
I was looking for oem but can't find
Can i used the oil pump from b16a2
Or has to be for the jdm b16a

2LEM1

iTrader: (1)

Shodan while we're on the subject, do you recommend any modifications made to the oil system for a primary track car?

Is this worth $160?
Racing Oil Pumps

Oil cooler?

sowellman88011

There are 2 different part #s for the acura bseries oil pumps with thm changing in 95 or 96 the difference is only the later 1s have mounting points for the tdc sensor and its cheaper now. Up until about a year ago the earlier were cheaper. I worked in an acura parts department on the counter and as manager for 10yrs the earlier is more expensive now so their stock them must be way down. As supply get lower they get more expensive.

TheShodan

iTrader: (14)

If Track you mean circuit. I've always used TODA RACING 80mm Oil Pump Gear with the oil cooler using -10AN oil lines and an oil thermostat. ENDYN also will take OEM B-series oil pumps and modify the oil orifices for more oil volume. The Pump gear is of a better material for longevity and abuse on the circuit.