6.1 Oil pump upgrade on 5.7 hemi?
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Joined: Oct 2010
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From: MD
6.1 Oil pump upgrade on 5.7 hemi?
I'll be installing a KRC210 cam into my 5.7 hemi very soon. I have pretty much everything I need, but I read that some people install a 6.1 pump while they have it opened up?
Just wondering if the 6.1 is worthwhile or should I even bother installing a new 5.7 oil pump while I'm at it? I'm definitely installing a new timing set with 80k miles on the engine.
Just wondering if the 6.1 is worthwhile or should I even bother installing a new 5.7 oil pump while I'm at it? I'm definitely installing a new timing set with 80k miles on the engine.
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Joined: Oct 2008
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From: Albany, NY
I dont know if there's any flow differences between the two? I know the 5.7L Oil pump is a low flow at idle...4-6psi low which is why I have a pronounced Hemi tick. Once I rev engine up to 1krpms, the oil pressure increases to about 20psi and noise goes away.
If the 6.1L pump flows slightly more then I would say yeah go for it!
If the 6.1L pump flows slightly more then I would say yeah go for it!
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Joined: Oct 2010
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From: MD
I dont know if there's any flow differences between the two? I know the 5.7L Oil pump is a low flow at idle...4-6psi low which is why I have a pronounced Hemi tick. Once I rev engine up to 1krpms, the oil pressure increases to about 20psi and noise goes away.
If the 6.1L pump flows slightly more then I would say yeah go for it!
If the 6.1L pump flows slightly more then I would say yeah go for it!
I haven't found out for sure how much better it flows or if it's really necessary with power upgrades. Some say not to bother with it and others say something like "Don't forget that you should also install a 6.1 oil pump and a 6.1 timing set. The extra oiling is a benefit and the 5.7 timing set tensioners tend to break with upgraded cams." Which brings up another question...should I use a 6.1 timing set when I change it out?The 6.1 oil pump is mentioned as a suggested part in this list:
http://tinyurl.com/d5akcqo
I also read that they upgraded the oil pump on the newer 5.7 hemis. I would love to not spend the extra dough and add extra steps, but I also don't want to skip preventative maintenance just to be cheap and lazy
True. Extra steps would be to remove oil pan and pickup tube, but timing cover needs to be removed either way. With 80k on the clock, just wondering if it's worth the $ and time to do it while it's taken apart.
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Joined: Nov 2005
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From: MD
I have seen a few hemi aftermarket places that recommend them as an upgrade when you swap cams (to go along with the springs). Cheaper to buy a Mopar off the shelf from a parts house then say from Inertia or someone (about $50+ shipping versus $70 plus shipping).
