Anyone ever tried a 1" bore SE ram? - Pirate4x4.Com : 4x4 and Off-Road Forum
 
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Old 04-26-2012, 09:56 PM   #1 (permalink)
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Anyone ever tried a 1" bore SE ram?

Buddy is building a Harbor Freight/Cal-Ranch sponsored rig, meaning it has been built on a very tight budget. It is all broken in and performing very well but he would like some steering assist.

We have always run 1.5" rams but have noticed with stock pumps a little bit of slow response, he wants to keep his stock pump. We are wondering how a 1" ram would react to a stock yota pump with roughly 1200 psi at idle, probably lower due to it's age. The working pressure of the ram is 1500 psi.

Doing the math the area of a 1 inch ram versus a 1.5 inch ram is almost double the piston size, same as a 1.5 inch to 2 inch. We tried to source a 1.25 inch bore ram for some middle ground but no go.

Searching online I really see no mention of anyone running that small bore of a ram, anyone have an opinion before we order?
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Old 04-26-2012, 10:00 PM   #2 (permalink)
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Don't forget to subtract the shaft size.
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Old 04-26-2012, 10:01 PM   #3 (permalink)
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It'll help, but of course, wont have as much power.

Any reason he wants to keep the stock pump? I assume 22r/re?

A Jeep Cherokee TC Saginaw pump can be swapped on for cheap, and is capable of much more flow and pressure than a Toyota pump.


I'd almost guarantee that the stock Yota pump is not putting out 1200psi. I put a gauge on mine and it would barely make 1000 with the motor revved.
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Old 04-26-2012, 10:09 PM   #4 (permalink)
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Back in the day, we swapped a stock Gm saginaw "p" pump onto a 22r to run hydro
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Old 04-27-2012, 12:57 AM   #5 (permalink)
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Back in the day, we swapped a stock Gm saginaw "p" pump onto a 22r to run hydro
Do you have any pictures of the bracket for that?

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Old 04-27-2012, 01:30 AM   #6 (permalink)
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a 1" bore ram would push 864lbs @ 1100psi.

a 1.5" ram would push 1944lbs @ 1100psi.

a 2" ram would push 3456lbs @ 1100psi.

pulling would be less, obviously.
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Old 04-27-2012, 06:07 AM   #7 (permalink)
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Swap in a Saginaw pump. You'd be lucky to get 700 to 800 psi out of a Toyota pump at idle.
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Old 04-27-2012, 08:22 AM   #8 (permalink)
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Do you have any pictures of the bracket for that?

Nikolai
Doubtful, it was the rockme single seater. Whatever there was build-wise would be in the toy section. This was 10 yrs ago
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Old 04-27-2012, 10:49 AM   #9 (permalink)
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A P style Saginaw is huge. Is there even room under the hood of a Toyota?
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Old 04-27-2012, 11:00 AM   #10 (permalink)
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TC pump on a 22RE is a common swap.

I traded some guy on PBB for his 1.25" ram. Works great on my 4Runner--one-finger steering on the highway, and no lag.
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Old 04-27-2012, 01:18 PM   #11 (permalink)
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Doubtful, it was the rockme single seater. Whatever there was build-wise would be in the toy section. This was 10 yrs ago
No worries, I was just curious. I've run a TC pump on the 22r but I'd love to go to a p pump as I have a couple of the PSC ones sitting around here. I'm not sure how to build the bracket.

Nikolai
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Old 04-27-2012, 01:59 PM   #12 (permalink)
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No worries, I was just curious. I've run a TC pump on the 22r but I'd love to go to a p pump as I have a couple of the PSC ones sitting around here. I'm not sure how to build the bracket.

Nikolai
I would imagine that if you used a different length belt, you could fit one pretty easy. Then again, my imagination is off sometimes.
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Old 04-30-2012, 05:49 PM   #13 (permalink)
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There was a guy building a Sag P pump swap bracket that replaced the A/C bracket.

Yunit was the username I think.
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Old 05-01-2012, 07:18 AM   #14 (permalink)
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i had a 1 1/4 inch bore with 1 in ram cylender on my xj with 44 boggers and stock pump...

not the best but just good enough ..
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Old 05-01-2012, 10:05 AM   #15 (permalink)
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Where are you guys sourcing a 1.25" ram? Seems like a great in between setup.
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Old 05-01-2012, 10:14 AM   #16 (permalink)
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1.25" cylinders pop up on surpluscenter.com from time to time for cheap.

They work very good for hydro assist.
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