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LQ4 performance upgrade suggestions

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Old 06-26-2009, 09:52 PM
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Default LQ4 performance upgrade suggestions

I have an 06 lq4 and would like to use it to tow my camper and also 4 wheel a bit. Its in an 88 3/4 ton suburban by the way. I was curious what i should do to get a little more power and torque out of it just for the fun factor mostly but also for towing. I have headers a cold air and a performance tune on it already. Any suggestions or opinions are welcome and appreciated.
Old 06-26-2009, 10:14 PM
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LS6 intake, a cam, and head work are all good options to get you more HP, but it sounds like you're more interested in torque, so you may want to run the truck intake and a small cam, and maybe mill the heads and run a sanding roll over the ports to get you a little more compression and a tiny bit of flow without a whole lot of effort.

Of course, you could always do L92 heads and a custom truck-oriented cam or something, but that's not "a little bit". LOL
Old 06-26-2009, 11:05 PM
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turbo it. t70..leave everything stock.besides 42lbs injectors, t70 spool up real quick with ur lq4,, run outa steam at the top end,, but torque would be rediclous..

can get one 600 brand new shipped..!!!!!
Old 06-27-2009, 08:29 AM
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$600 turbo link plz.
Old 06-27-2009, 01:21 PM
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there two of them on here sponser's.. modulerturbo i think his name.. and kbracing .,, i just bough one...
Old 06-27-2009, 01:48 PM
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i would just put a cam in for some more torque. definetly go turbo for much more power and torque!
Old 06-27-2009, 04:30 PM
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ok, the turbo thing sounds very intruiging. I have a stock 4l80e, will that handle the power? I want some more power and the turbo sounds good but i don't want tons of power where things get grenaded and blolwn up. How much boost would you reccomend? Would I need to have my ecm tuned for the extra boost or what?
Old 06-27-2009, 04:45 PM
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easier, cheeper to just mill heads and go ls6 cam, headrs, cai,tune
Old 06-27-2009, 04:52 PM
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as previously stated I already have headers a tune and CAI
Old 06-27-2009, 04:57 PM
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mill heads and mild cam like GT11
is a bad ****
Old 06-28-2009, 09:51 PM
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Originally Posted by cdwood388
I have an 06 lq4 and would like to use it to tow my camper and also 4 wheel a bit. Its in an 88 3/4 ton suburban by the way. I was curious what i should do to get a little more power and torque out of it just for the fun factor mostly but also for towing. I have headers a cold air and a performance tune on it already. Any suggestions or opinions are welcome and appreciated.
In all honestly, I wouldn't go with a cam larger than a 214/220 due to those burbans being HEAVY and you're going to be wanting TORQUE, not peak horsepower...

I would look into something like...

214/220 .600/.581 on 112 or lower LSA

Mill your heads down .040 to raise your compression to approx 10:1 and a short duration, high lift cam and you'll have some nice torque numbers.
Old 12-17-2012, 01:02 PM
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Hey all.anyone got any ideas on a lq4 goin in a trans am.would like to make 450horse at the flywheel.can i do thos with a ls1 intake and a cam.how big can i go without a converter upgrade
Old 12-17-2012, 06:05 PM
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L92 Heads are also a good upgrade



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