Anyone Know The GPM Required To Run Station's DE Full Hydro?

682 Views 8 Replies 5 Participants Last post by Sean, Jan 3, 2007

Sean

Discussion Starter · Jan 2, 2007

Anyone know if it's a standard 3.4 GPM pump or if it needs a 4.5-6 GPM?

Sean

1 - 9 of 9 Posts

there is no "exact answer". Depends on what you want. If you have less GPM, then what will happen is you will try to turn the wheel as fast as you can and you will basically hit a wall that will only let it turn so fast. That wall is your GPM limit. If you have an 8" ram, and stations orbital whick is 9.7 per rev, that pump will work fine. You still might be able to reach the GPM wall, but you will be turning the wheel pretty fast.

I am running rockstompers 10" travel 2.75" rams with stations orbitals and rear steer. I went to a bigger orbital and am running 2 3.5gpm pumps in parallel to get 7gpm b/c my piston is 40% bigger, so I need to flow more GPM to fill my cylinder as fast as yours.

You should be good to go.

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Sean

Discussion Starter · #3 · Jan 2, 2007

X-Rated said:
there is no "exact answer". Depends on what you want. If you have less GPM, then what will happen is you will try to turn the wheel as fast as you can and you will basically hit a wall that will only let it turn so fast. That wall is your GPM limit. If you have an 8" ram, and stations orbital whick is 9.7 per rev, that pump will work fine. You still might be able to reach the GPM wall, but you will be turning the wheel pretty fast.

I am running rockstompers 10" travel 2.75" rams with stations orbitals and rear steer. I went to a bigger orbital and am running 2 3.5gpm pumps in parallel to get 7gpm b/c my piston is 40% bigger, so I need to flow more GPM to fill my cylinder as fast as yours.

You should be good to go.

Not sure I'm following....what I'm trying to find out is: what GPM does Station's system use? I've got a call into Station now, but if someone here knows off hand, it would be helpful.

I've got his complete kit....DE Cylinder, Dan Foss Steering unit, P-pump, etc. Just wondering what kind of flow the P-pump that came with his kit is making.

Sean

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Wilson

· #4 · Jan 2, 2007

Sean will have to tell you. I imagine it's a modded pump, but to what extent only he would know. The "N" series pump I got from him was about 6 gpm @ 1700 psi.

What xrated was saying is that the GPM only affects how fast you want to turn the wheel. If you're doing high-speed technical (ralley- type) driving, you'll need a lot more GPM than crawling slowly over a technical rock course...make sense now?

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Sean

Discussion Starter · #5 · Jan 2, 2007

Wilson said:
Sean will have to tell you. I imagine it's a modded pump, but to what extent only he would know. The "N" series pump I got from him was about 6 gpm @ 1700 psi.

What xrated was saying is that the GPM only affects how fast you want to turn the wheel. If you're doing high-speed technical (ralley- type) driving, you'll need a lot more GPM than crawling slowly over a technical rock course...make sense now?

Yep, gotcha. Thanks for the explanation.

Wish I'd have gone with an N pump. The P-pumps with cans suck and the modded P-pumps without the can are ridiculously expensive.

Sean

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jbt

· #6 · Jan 2, 2007

Which trucks came with "N" pumps?
How does the N-pumps look like?

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Sean

Discussion Starter · #7 · Jan 2, 2007

http://www.pscmotorsports.com/index.php?cPath=138_174_181

N-style pumps are the ones towards the bottom of the page.

P-pumps and TC pumps are also on that page. Apparently some GMs used all these pumps but I don't know which models they are all out of.

I guess Dodge used them too but again, no idea on which ones.

Personally, I'd rather buy a new one than try a junker for full hydro, but that's just personal preference.

HTH,
Sean

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Gordon

· #8 · Jan 2, 2007

The N pump stock on LT1's and stuff is reverse rotation, you can find those on just about anything with an LT1. I am not sure if there was a stock version that rotates the normal way.

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Sean

Discussion Starter · #9 · Jan 3, 2007

The standard P-pump Station uses with a can has a 6 gpm flow rate and 1650 psi.

HTH,

Sean

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