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LQ4 most common failure points?

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Old Sep 25, 2019 | 02:02 PM
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Default LQ4 most common failure points?

Im getting an LQ4 to build for my Nova. Im not looking to be a SBE hero. Im willing to upgrade pistons and rods if needed

Ive not seen a crank failure just rods and pistons
Power goals are sub 1000 hp boosted. What are the most common bottom end failures and good fixes for them? Not big budget but K1 Molnar type stuff are in my price range.
Thank you.
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Old Sep 26, 2019 | 12:26 PM
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Normally the rods, especially if its a Gen 3

What fuel will you be using? Ive seen lots of melted pistons from using pump gas or bad tune.

Also: Summit has forged rods/pistons fairly cheap now... need to be balanced im pretty sure, but might be worth it at 1000hp
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Old Sep 26, 2019 | 12:31 PM
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Originally Posted by Ls7colorado
Normally the rods, especially if its a Gen 3
True, though even they are good thru about 500HP. But yeah, approaching 1000HP, you need the good stuff. ANY engine would.
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Old Sep 26, 2019 | 01:13 PM
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Originally Posted by Ls7colorado
Normally the rods, especially if its a Gen 3

What fuel will you be using? Ive seen lots of melted pistons from using pump gas or bad tune.

Also: Summit has forged rods/pistons fairly cheap now... need to be balanced im pretty sure, but might be worth it at 1000hp
I will be running pump E85.
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Old Sep 26, 2019 | 02:47 PM
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Gap the rings and send it!.... lol
Ive seen them last 2 seasons racing, and ive seen them last 2 passes....
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