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Is an aftermarket oil pump necessary?

Generation IV Internal Engine 2005-2014 LS2 | LS3 | LS7 | L92 | LS9

Is an aftermarket oil pump necessary?

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Old

Jan 17, 2012 | 04:51 AM

#1

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Is an aftermarket oil pump necessary?

My friend is doing a cam/spring/timing chain swap on his l99 camaro, would it be worth it to upgrade to an aftermarket oil pump? Thanks guys!

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Jan 17, 2012 | 01:45 PM

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Anyone?

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Jan 17, 2012 | 05:10 PM

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not worth it, if anything i would take it out and hand port it a little bit just my .02

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Jan 17, 2012 | 05:32 PM

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You can't just throw any pump on those L99's unless he's converting to an Ls3 IIRC they have a bigger pump already due to all the oil it must pump to the dod lifters etc etc. if you can use any Ls pump then I'd get a melling pump. Only because your going in there so why not upgrade to a better one.

Just my .2

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Jan 18, 2012 | 03:20 AM

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Ok i'll have him look into the melling, thanks guys.

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Jan 18, 2012 | 02:31 PM

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The following is a graph of the flow of the stock LS oil pump versus three Melling oil pumps. If you aren't going to increase the load on your main bearings, rod bearings, and piston shirts, and you aren't going to turn the motor over 6,200 rpms you don't need an improved flow oil pump.

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Old

Jan 18, 2012 | 08:31 PM

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its easy while doing the cam swap, might as well

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Old

Jan 18, 2012 | 08:39 PM

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What's what I always say.

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Old

Jan 19, 2012 | 02:58 AM

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Quote:

Originally Posted by Pumba

The following is a graph of the flow of the stock LS oil pump versus three Melling oil pumps. If you aren't going to increase the load on your main bearings, rod bearings, and piston shirts, and you aren't going to turn the motor over 6,200 rpms you don't need an improved flow oil pump.

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Good post. One of the few times I've ever seen actual evidence-based information posted.

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Jan 19, 2012 | 09:59 AM

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I wonder if those numbers for the LS pump in the graph would sustain longer if ported, or if its just a simple volume problem? Eric L

Old

Jan 25, 2012 | 02:58 PM

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For the money and piece of mind I bought the ported and shimmed one from TSP.

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Jan 25, 2012 | 08:06 PM

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Quote:

Originally Posted by Pumba

The following is a graph of the flow of the stock LS oil pump versus three Melling oil pumps. If you aren't going to increase the load on your main bearings, rod bearings, and piston shirts, and you aren't going to turn the motor over 6,200 rpms you don't need an improved flow oil pump.

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Hi Pumba,

Do you know who and how those data were generated?

Christian

Old

Jan 26, 2012 | 05:20 AM

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Gotta post that source!

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Jan 27, 2012 | 09:46 AM

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Quote:

Originally Posted by miami993c297

Hi Pumba,

Do you know who and how those data were generated?

Christian

The oil pump flow data was provided to me by an OEM oil pump supplier - Identity withheld at their request.

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aftermarket, conersion, corvette, good, l99, lpe, ls, ls1tech, ls3, melling, oil, pump, specifications, stock, tsp

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