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Old 07-08-2003, 09:33 PM   #1
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Default B20 /Vtec WHAT water pump to use??

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?
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Old 07-09-2003, 06:09 AM   #2
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Default Re: B20 /Vtec WHAT water pump to use?? (Dan GSR)

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
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Old 07-09-2003, 06:53 AM   #3
 
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Default Re: B20 /Vtec WHAT water pump to use?? (Dan GSR)

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.
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Old 07-09-2003, 12:07 PM   #4
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Default Re: B20 /Vtec WHAT water pump to use?? (Dan GSR)

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.
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Old 07-11-2003, 04:02 AM   #5
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Default Re: B20 /Vtec WHAT water pump to use?? (Integra-T)

Quote:
Originally Posted by 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.
hrm go figure

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Old 07-11-2003, 07:05 AM   #6
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Default Re: B20 /Vtec WHAT water pump to use?? (irev210)

Quote:
Originally Posted by irev210
hrm go figure
irev210 what do you mean? do you agree?
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Old 07-11-2003, 07:54 AM   #7
 
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Default Re: B20 /Vtec WHAT water pump to use?? (irev210)

Quote:
Originally Posted by AzSi22
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.
i concur.
Quote:
Originally Posted by irev210
hrm go figure
i think it means he gets it now..or now, he knows.......(?)
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Old 07-11-2003, 08:00 AM   #8
 
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Default Re: B20 /Vtec WHAT water pump to use?? (Dan GSR)

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.
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Old 07-11-2003, 10:45 AM   #9
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Default Re: B20 /Vtec WHAT water pump to use?? (SLPR)

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