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We have had a sale thread for a while on our hi flo ls pumps (link below) and they are growing in popularity. The problem being, we never went over the finer points of the pumps, why they are "hi flo" and why they are better than most of the other pumps out there. So before I laud about our ported pumps, let me go over those parts of our std pumps.
Why are our pumps "hi flo"?
The internal and external dimensions are VERY close to the ls6 and slp pump (ill be verifying that later on with updates) so they fit well and work with any chain/spacer set (double row also).
The casting transitions in the main body are kept to a minimum to allow for more volume of oil, less restrictions, and ease of flow through both inlet and outlet. The tolerances are also closer to have less pumping loss/cavitation vs most stock style entry level pumps. The precision machined face is also checked for flatness on our ported pumps.
Pics vs a few others
Out of box rpmspeed pump
Online pic of others inlets
Melling 10295 pump
What else makes our pumps better?
We have low profile bolts on the front cover for less clearance issues. The precision machined front cover is also coated to resist rust and internal wear. also the precision machined georotors are checked for warps, flatness, and any rough spots as well as issues with clearance on our ported pumps. Our pumps also come pre-lubed, so no 1st start galling issues here!!
Machined and coated front
Now on to the ported pumps. Every pump is fully disassembled, ported, the cover and gears are checked for any burrs or issues as well as flatness. Then the pumps are cleaned, pre-lubed, and reassembled. They are normally $90+ shipping but they are on our summer sale for $85 shipped for these first 5 on hand only!! LINK TO SALE
And a few pics after porting
We will be offering more options on these soon so stay tuned!!
We have quite a few chains to choose from. We have the ls2 chain set that will work with any 24x engine, the c5r chain, 2 iwis chains, cloyes z chain as well.
We can match them up with gm stock gears.
The iwis chains also come on our n motion and rollmaster billet adj sets and the zchain we can get the z chain on nearly any cloyes set. The c5r chain only comes as a chain so would use gm gears.
I have about 50-60 psi hot oil pressure at 6000+ rpm with my engine with M1 synthetic 10-30. Ported stock LS2 pump. Would I see higher pressure or higher volume than stock - or both?
08-04-2017, 12:23 PM
RPMSpeed Ported Hi Flo ls pumps (with pics) 
