5.4 power
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Member
Joined: Mar 2010
Posts: 58
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From: Lookout Mountain, Tennessee
5.4 power
Can anyone give me some ideas and thoughts to get more power out my 02 5.4? I am going up against a friend with a 8.1 Chevy and I believe it is an 01. Any and all ideas are appreciated. Thanks
Senior Member
Joined: May 2004
Posts: 577
Likes: 1
From: Longmont, CO
I work for a chevy dealer, I don't think your friend's 8.1 will beat you. If it was a duramax, I would worry. I found with my former 99 5.4, adding longtube headers, true dual 2.5 exhaust, with a tune will really woke the truck up - especially mid to top end. Throw on some e-fans and that old 8.1 will be eating your dust. The 8.1 is a good torque engine, like the 6.8 v10... they make good power but don't go anywhere fast.
Senior Member
Joined: Mar 2013
Posts: 6,677
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From: Houston and College Station, TX
Yup, buddy of mine has an 8.1 Avalanche and another has a 6.0 Avalanche. Both are 4wd and they race and it's a dead heat every time. The 5.3 isn't much slower.
Do long tubes and you'll beat him, otherwise you'll be slower. I had a 2000 Suburban with a 5.3 and I still think it's faster than the 06 5.4 I have now. Just my thought. However, why would you do mods just for a race? Do it because you really want to for every day!
Do long tubes and you'll beat him, otherwise you'll be slower. I had a 2000 Suburban with a 5.3 and I still think it's faster than the 06 5.4 I have now. Just my thought. However, why would you do mods just for a race? Do it because you really want to for every day!
Technical Article Contributor
Joined: Dec 1997
Posts: 9,417
Likes: 11
From: Windsor,Ontario,Canada
Start driving with a heavy foot now, before race day. The PCM's adaptive strategy will learn your habits and make it perform better. Go and practice your launch. Try to get get going as fast as you can without spinning the tires. Lower your rear tire pressure to 25 psi for the race.
