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Summit Racing LS3/C5 Time Attack Engine Build

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Old Mar 27, 2026 | 12:58 PM
  #41  
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Originally Posted by low2001gmc
What LSA advance if any 🤷?
5 degrees
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Old Mar 27, 2026 | 01:07 PM
  #42  
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Originally Posted by 02EBC5Z06
Just watch the fuse for the 10g off the alternator. Mine started getting hot and melting the plug, so I upgraded the hot path to the pump between two of the bulkhead pins, made sure the hat/pump was adequately grounded and eventually tossed the hotwire in the trash and I have a leash dual relay board on the frame rail with a 4awg (wayyy overkill) powering it from the alternator, then 10g off that to the pump.
I have not dealt with Racetronix since my C4 days years ago. I never had any issue with their stuff, but youre now the second person to tell me to keep an eye on it...

I mounted the relay to the ground location on the frame back there in the wheel well. I cleaned all the paint off before bolting the grounds back on so hopefully its all good. Do you have pics of your setup?

Originally Posted by low2001gmc
What LSA advance if any 🤷?
Yes +5 as mentioned. I will edit the post to include it!
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Old Yesterday | 08:30 AM
  #43  
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Not a whole lot accomplished this weekend, but productive none the less. Keeping the updates going on here though.

I'm using an ARE aftermarket LS7 oil pan and it requires a remote oil filter. I decided to put it away from heat and still pretty accessible in the driver side fender. I had to extend the wiring for the temp sensor, and just got a longer AN hose for my pressure sensor which was already relocated.



Then I worked on porting the LS7 pump for about 3 hours. Just cleaned up some sharp edges and transitions. Worked mostly on the scavenge side to keep oil out of the pan as much as possible.

















I finally cut the tub out for the C6 exhaust, and cleaned the firewall for some DEI reflect a gold heat shield.





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Old Yesterday | 08:48 PM
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Appreciate the updates Mike. Please keep ‘em coming.
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