i was told a b18c1 b18c5 and b20 all have the same oil pump . in fact i even read it was the same part #.can anyone confirm this for me. as far as b18c1 pumps im refering to obd2 ( with the crank sensor mount).

 

Yup all flow the same...

 

So will a prodrive oil pump gear fit a b20 oil pump?

 

VTEC oil pumps are different from non-VTEC pumps. Just go w/ an ITR pump for peace of mind. You may also want to shim it & use the newer "smaller" oil filters for added pressure.

 

What do you mean by shim it?I heard you can use rsx filters and that will raise your oil pressure.

 

haha

Just go w/ an ITR Pump, 90 bucks.

 

Whats so funny,isnt it true that you can run RSX filters hehee.I was wondering cause i got a prodrive gear in a gsr pump and was wondering if i can reuse it in a b20 block.I already know better to use vtec pumps in non vtec blocks i dont want to ghetto rig nothing

 

On the underside of the pump(side that wil face down to the pavement once installed) there is a spring-lodaed bolt. Remove this bolt, add a thin washer and re-install. Each washer should be good for an additional 5 psi or so, but I'd say and ITR pump w/ K-series filter is more than enough pressure. That's what I use.

 

ohh ic,well i have really installed a oil pump before but but thats a pretty good tip.Thanks man i know for sure if its a non vtec block i will put a vtec pump on it.

 

Shimming it will generate more pressure but not more flow... As vtecvoodoo said just get an ITR pump and you'll be set...

 

Done and Done.But is there any difference between the gsr pump and the type r?

 

so i can just install a rsx filter on a gsr block , and it will add pressure

 

Nope they are the exact same, just as all late model oil pumps... Peace