L83 LP fuel pump upgrade
Thread Starter
Teching In
Joined: Nov 2016
Posts: 31
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From: Clute
L83 LP fuel pump upgrade Whippled 5.3 in a 2016 Silverado with supporting mods including LT4 injectors and HPFP. Stock LP. 572rwhp on E10. Next weekend I’m trying different alcohol levels maybe up to around E30 logging data at the track. Plan to increase until seeing LP fuel or a/f limitations.
Disclaimer-I’m easily frustrated by search functions and have only given it a half hearted attempt.
What’s the capacity of the stock pump? I read about a Caprice PPV pump, Thats the current model and is a good option, I reckon? Any idea on the capacity increase with that pump?
Disclaimer-I’m easily frustrated by search functions and have only given it a half hearted attempt.
What’s the capacity of the stock pump? I read about a Caprice PPV pump, Thats the current model and is a good option, I reckon? Any idea on the capacity increase with that pump?
Thread Starter
Teching In
Joined: Nov 2016
Posts: 31
Likes: 1
From: Clute
Little different question, does anyone have information on mounting configuration for an LT4 lpfp? I’m wondering if I can graft one onto the long truck L83 mounting supports. If somebody had an old LT4 DI in tank pump I would be willing to buy it. Does not need to work.
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Joined: Sep 2019
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Did you get anywhere I currently have a 5.3 2015 yukon with a tsp stage 1 cam,long tube and a edelbrock supercharger. I only installed lt4 hpfp and was able to run e30. Would like to get it to e85 was wondering if you ever got anywhere with your lpfp.
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Thanks
