How much am I holding back from my LQ4?
10-26-2007, 12:06 PM
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How much am I holding back from my LQ4?
I just recently put in an LQ4 (stock internals) with ported 243 heads milled .010, TR 230/228 cam in my truck. I've got no other bolt ons other than a Corsa catback. My question is, how much am I really missing out by running stock exhaust manifolds, Y-pipe and airbox? Now obviously having LT's and no cats is going to make more power, but are there any estimates on how much in my case? I just want to know how detrimental this is to my current setup and whether I need to stop being a wuss about it being too loud and buy them already lol.
10-26-2007, 12:14 PM
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i agree. recently a guy at silveradoss.com installed a set of long tubes on his lq9 with cam and heads and he dropped 3 tenths with no tune. i would think exhaust would be a must with any cam/head combo.
10-26-2007, 01:39 PM
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IMO, the stock airbox isn't holding you back that much. Everything else though, LT's, ORY should easily gain you 25-30 HP. Hell even buy LT's and getting a good set of High Flows you'd easily seen nice gains. If you're that worried about it being too loud, put a dynomax bullet inline in front of you muffler of choice and quieten it down.
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10-27-2007, 02:32 AM
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Alright so it's pretty obvious I need LT's after tonight lol (watch multimedia section), are there any other small bolt-ons I'm missing? Are pullies and an intake really worth the money and hassle? Forget 4.10's, I'll may go that route when I get my tru-trac but for now I'm keeping my 3.73's.
10-27-2007, 09:42 AM
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3.73 is an all around great gear. i had them in the truck when i bought it and swapped to 4.11 and didnt really notice anything, so i would hold off on gears!!!! like Quik said, E-Fans, Intake, LT's, and duals with no cats would net you around 40 - 50 hp. hell i still need to get me an intake and restall my converter!!!!!!!!