Oil pump porting *service*?
Team Owner
Joined: Mar 1999
Posts: 22,025
Likes: 192
From: At the beach in little Rhody
Likely not a used one. However, there are some DIY's around if you are so inclined as the pump is relatively simple but the parts must be correctly re-assembled, i.e., there is an up and down to the parts.
Safety Car
Joined: Jan 2012
Posts: 3,956
Likes: 520
From: Da U.P.
http://www.andersonperformance.net/L...rting_v1.2.pdf
There's a how to port your own. Stock pumps stagnate in flow around 6300RPM IIRC. I haven't seen any data indicating that porting a stock pump staves that off or not. I'd really like to keep stock volume if it didn't puff out at high RPMs, the Mellings scare me a little because I think they all flow a little more than OEM. I bumped my rev limiter to 6900 for a few short straights that I boinked the stock limiter on and that ends up being a decent amount of time above 6300, enough for me to add up the ~5k it'd be to replace a blowed up LS6.
There's a how to port your own. Stock pumps stagnate in flow around 6300RPM IIRC. I haven't seen any data indicating that porting a stock pump staves that off or not. I'd really like to keep stock volume if it didn't puff out at high RPMs, the Mellings scare me a little because I think they all flow a little more than OEM. I bumped my rev limiter to 6900 for a few short straights that I boinked the stock limiter on and that ends up being a decent amount of time above 6300, enough for me to add up the ~5k it'd be to replace a blowed up LS6.
Thread Starter
Instructor
Joined: Feb 2012
Posts: 102
Likes: 2
When you say the stocker stagnates...does that mean it's pumping the same amount from 6300-6900? And is that no longer keeping up, or is ok for short stays above 6300?
Not sure I will rev that high very much, at least not unless I start regularly tracking the car. This is a street/strip build with ambitions to occasionally head to Summit Point, if I can afford to.
Safety Car
Joined: Jan 2012
Posts: 3,956
Likes: 520
From: Da U.P.
Oil flatlines at that RPM, but I don't know if that's good or bad. I'm personally scared by what I don't know. I really don't like the answer of "well Joe tried it and he hasn't blown up yet". I much prefer quantitative data. There is a thread floating around with a chart that shows the flow of a stock LS pump vs 2 Mellings.
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