Dan GSR

I have a B20B long block
I also have a B16 long block

B20 water pump is 19 tooth
B16 water pump is 22 tooth

What is the GSR tooth?

Can I use the B16 water pump on my B20/vtec and use a GSR timing belt?

Any advantages/disadvantages to using a non-vtec or vtec water pump?

irev210

you cant use a b16 water pump

here are the ideas behind a gsr pump

the water doesnt move as fast, hence better for high rpm.

The longer the coolant stays in the radiator, the better it cools down

w/ a LS pump it is designed for lower RPM operation, so high RPM action means that the coolant doesnt recover in the radiator for long enough time.


blah lbah blah

i dont think there is much difference

if your replacing, you might as well go with the gsr pump/belt

Integra-T

Yes you can use the B16 water pump. I am using one. All B series DOHC VTEC water pumps have 22 teeth. You can only use the GSR timing belt if going with a VTEC water pump.

AzG35

Yes, you can use a b16 water pump with GSR belt. If you use the B20 pump, you have to use a B20 belt. B16 pumps are the same as ITR/GSR. Oil pumps used to be different, but Honda only produces 1 now for all B series VTEC motors, and B20s too.

irev210

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Integra-T &raquo;</TD></TR><TR><TD CLASS="quote">Yes you can use the B16 water pump. I am using one. All B series DOHC VTEC water pumps have 22 teeth. You can only use the GSR timing belt if going with a VTEC water pump.</TD></TR></TABLE>
hrm go figure

Dan GSR

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by irev210 &raquo;</TD></TR><TR><TD CLASS="quote">
hrm go figure

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

irev210 what do you mean? do you agree?

10K2HVN

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by AzSi22 &raquo;</TD></TR><TR><TD CLASS="quote">Yes, you can use a b16 water pump with GSR belt. If you use the B20 pump, you have to use a B20 belt. B16 pumps are the same as ITR/GSR. Oil pumps used to be different, but Honda only produces 1 now for all B series VTEC motors, and B20s too.</TD></TR></TABLE>
i concur.
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by irev210 &raquo;</TD></TR><TR><TD CLASS="quote">
hrm go figure</TD></TR></TABLE>
i think it means he gets it now..or now, he knows.......(?)

BROOD

You have two choices (reguardless of what ITR, GSR, B16, etc.)
19 tooth water pump is a non-Vtec pump
22 tooth water pump is a Vtec pump
Vtec engines operate at higher rpms than non-Vtec engines, to sustain proper heat transfer capacities of the cooling system the water pump pully diameter is increased, slowing down the pump.

Vtec water pump on B16A block - use Vtec B16A timing belt
Vtec water pump on B16B, B18B, B18C,etc blocks - use Vtec B18 timing belt
nonVtec water pump on B16A, B18B, B18C,etc blocks - use nonVtec B18, B20 timing belts

The water pump pully dameter and cylinder block height determine what timing belt you must use.

Kataku2K3

VTEC pump... B18C timing belt... It's that simple... Latez