Water pump flow table
Thread Starter
Safety Car
Joined: Jul 2001
Posts: 4,871
Likes: 15
From: Detroit's West Side MI
Water pump flow table
Does anyone have the flow table for the LT1 water pump - GPM vs RPM?
A search turned up 1,000 posts about electric pumps, nothing about the stock one. I know I've seen it here, probably posted by Slalom4me
I recently read a theory that at higher RPM the stock pump flows more than the electrics. Just wanted to see the real numbers.
Thanks...
A search turned up 1,000 posts about electric pumps, nothing about the stock one. I know I've seen it here, probably posted by Slalom4me
I recently read a theory that at higher RPM the stock pump flows more than the electrics. Just wanted to see the real numbers.
Thanks...
Last edited by ScaryFast; Jun 8, 2009 at 04:42 PM.
Race Director
Joined: Apr 2000
Posts: 15,344
Likes: 4,008
From: Texas
Does anyone have the flow table for the LT1 water pump - GPM vs RPM?
A search turned up 1,000 posts about electric pumps, nothing about the stock one. I know I've seen it here, probably posted by Slalom4me
I recently read a theory that at higher RPM the stock pump flows more than the electrics. Just wanted to see the real numbers.
Thanks...
A search turned up 1,000 posts about electric pumps, nothing about the stock one. I know I've seen it here, probably posted by Slalom4me
I recently read a theory that at higher RPM the stock pump flows more than the electrics. Just wanted to see the real numbers.
Thanks...
SAE 920673 "New Generation Small Block V8 Engine", the charts for water pump flow are plotted as a function of pump RPM, not engine RPM
39 teeth on the Water Pump drive unit
99 teeth on the cam drive sprocket
------------------------------------
2.538:1 ratio between water pump and cam. (99/39)
2:1 ratio between cam and crank (any 4-stroke)
-------------------------------------------------
1.269:1 ratio between LTx water pumps and crank.
11 GPM @ 1,000 pump RPM (787 crank RPM)
20 GPM @ 2,000 pump RPM (1576 crank RPM)
31 GPM @ 3,000 pump RPM (2364 crank RPM)
40 GPM @ 4,000 pump RPM (3151 crank RPM)
51 GPM @ 5,000 pump RPM (3940 crank RPM)
64 GPM @ 6,000 pump RPM (4727 crank RPM)
Thread Starter
Safety Car
Joined: Jul 2001
Posts: 4,871
Likes: 15
From: Detroit's West Side MI
That's exactly what I was looking for, thanks again!
So I guess it definately flows more at higher RPM than the electrics. I think my Meziere HD flows a constant 52 gpm, so by 4000 RPM the stocker gets ahead. I'd guess I spend around 60% of my time above 4000 RPM...
How's your build coming, are you back on track?
So I guess it definately flows more at higher RPM than the electrics. I think my Meziere HD flows a constant 52 gpm, so by 4000 RPM the stocker gets ahead. I'd guess I spend around 60% of my time above 4000 RPM...
How's your build coming, are you back on track?
Melting Slicks
Joined: Oct 2006
Posts: 2,238
Likes: 10
From: College Station TX
That's exactly what I was looking for, thanks again!
So I guess it definately flows more at higher RPM than the electrics. I think my Meziere HD flows a constant 52 gpm, so by 4000 RPM the stocker gets ahead. I'd guess I spend around 60% of my time above 4000 RPM...
How's your build coming, are you back on track?
So I guess it definately flows more at higher RPM than the electrics. I think my Meziere HD flows a constant 52 gpm, so by 4000 RPM the stocker gets ahead. I'd guess I spend around 60% of my time above 4000 RPM...
How's your build coming, are you back on track?
