Generation IV Internal Engine 2005-2014 LS2 | LS3 | LS7 | L92 | LS9

LQ4 L92 Dilemma

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Old 04-29-2012, 11:52 AM
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Awesome, and thank you! Looking forward to the numbers after a tune.
Old 04-30-2012, 09:30 AM
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With this base tune, I'm having a super hard time controlling rpm at idle. If it isn't above 1500rpm, then it will die when I go to put it in gear. Not to mention, the idle is different every time I start it. I've gotta throw some miles on this thing pretty quick because this is just getting annoying as hell. Beyond that, I love the way it feels. It pulls super hard up top.
Old 07-15-2012, 05:52 AM
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Any updates
Old 07-16-2012, 06:35 PM
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Originally Posted by 95wannabe
Any updates
x2 on updates. still having headache over using lq4 shortblock already installed or going with lq9 shortblock i have on engine stand. i got ls3 heads and ls2 portworks l92 intake.
Old 07-18-2012, 08:37 AM
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subscribed to this..

Im in search for a LQ4 or LQ9 complete...And I planned on using the L92 heads and I've also been reading a lot about these combos...I just wanna run 11s!!!!! lol
Old 07-19-2012, 12:50 PM
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hitting the rollers tomorrow after lunch. NA then on a 150. I'll report back how she does.
Old 07-19-2012, 08:15 PM
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Originally Posted by JustinCody
hitting the rollers tomorrow after lunch. NA then on a 150. I'll report back how she does.
cant wait to hear how it does
Old 07-19-2012, 08:58 PM
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Subscribed!
Old 07-20-2012, 05:53 PM
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I had a hiccup today. The tune got pushed to next Saturday.
Old 07-31-2012, 10:43 PM
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Id like to hear how this turned out...
Old 08-01-2012, 05:36 AM
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In for the results.
Thanks for sharing your build.

Mike
Old 08-01-2012, 07:30 AM
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Still waiting myself. First his laptop crashed, then he can't get it to idle properly and doesn't know why, I am one day away from going and getting the car and my money and going somewhere else.
Old 08-01-2012, 01:13 PM
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ah that sucks.
Hopefully he'll find something simple with the idle.
Good luck man
Old 09-05-2012, 09:11 AM
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Any updates?
Old 10-08-2012, 03:27 AM
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TTT with this one. Im in the process of collecting parts for my LQ4/LS3 370 build. I would like for compression to be ~11.5:1 but am having a hard time finding domed pistons or even flat top pistons with L92 reliefs. The smallest dish I could find is -2cc.
Old 10-08-2012, 07:03 AM
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Originally Posted by djsanchez2
TTT with this one. Im in the process of collecting parts for my LQ4/LS3 370 build. I would like for compression to be ~11.5:1 but am having a hard time finding domed pistons or even flat top pistons with L92 reliefs. The smallest dish I could find is -2cc.
That -2cc is a flat top. My pistons are wiseco k398x3. They have a -3.2cc valve relief and I will still be at 11.5:1 in my 370.
Old 10-08-2012, 10:54 AM
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subscribed!

any news yet?
Old 10-09-2012, 12:58 PM
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Sorry guys, I ended up picking up my car from that tuner due to lack of knowledge. Since then I have been working on the suspension for the car. As soon as I finish up the suspension, I'll get it on the rollers and update.
Old 10-11-2012, 08:30 AM
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Originally Posted by djsanchez2
TTT with this one. Im in the process of collecting parts for my LQ4/LS3 370 build. I would like for compression to be ~11.5:1 but am having a hard time finding domed pistons or even flat top pistons with L92 reliefs. The smallest dish I could find is -2cc.
http://www.wiseco.com/pdfs/wiseco-ch...ls-pistons.pdf

Everything anyone could want and the price is right too.
Old 01-10-2013, 02:40 PM
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Originally Posted by JustinCody
Well I got the car all put back together and going. I cleaned up the heads, went with .040 Cometic gaskets, and 231/236 ls3 3 bolt cam. I'm still in the break in stages for everything but it sounds wicked and has some good mid range torque. After I get it broke in, I'll hit the rollers and let you know what I come up with.
I've been trying to locate the gaskets. Where did you find them? I'm doing a similar build myself.



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