LQ4 cam advice
02-09-2014, 06:01 PM
#1
LQ4 cam advice Ok, so I've searched on here so long that my head hurts and I think my eyes are starting to bleed! But I'm sure someone on here has tried what I'm considering doing. I have a 2006 LQ4/4l80e with just over 100k on it, and I was wanting to put a slightly bigger cam in it. Nothing too radical, just trying to get a little more power out of it and a little bit of sound. Here's my issue, I don't want to have to put a $800 stall in it. I would like to keep the factory torque converter even though it may cost me a little bit of power. What I haven't been able to find out is how much power it will cost?
My next issue is I really know nothing about how to read cam specs. I've read and read, but just can't wrap my head around this ****!! "Я тоже тк хочу вылwзти на dерх ребята возgите меня" This is literally what it's like to me!
I know I should just call some cam companies and see what they say, but thought I'd ask here first since I know there are people on here with first hand knowledge.
Any help is appreciated!
My next issue is I really know nothing about how to read cam specs. I've read and read, but just can't wrap my head around this ****!! "Я тоже тк хочу вылwзти на dерх ребята возgите меня" This is literally what it's like to me!
I know I should just call some cam companies and see what they say, but thought I'd ask here first since I know there are people on here with first hand knowledge. Any help is appreciated!
02-09-2014, 06:12 PM
#2
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You have lift, (how far the lobe lifts) duration, (how many degrees of rotation the valve is open) and lobe seperation, lower numbers (108) will give you the choppy idle, while higher numbers, 112 will have a smoother idle.
02-09-2014, 09:28 PM
#3
Launching!
I would suggest a Lunati 60510 grind. Peak power from 1400-6200 rpm.Great low and mid range torque and no tune or stall needed although a dyno tune would optimize its potential. I would also suggest upgrading to a set of better springs capable of at least .550 lift.
02-10-2014, 04:42 PM
#7
Launching!
Yes I do run this very cam in a ls1. You can run bigger cams but because you are running this in a relatively heavy vehicle you will want to be a little conservative in your duration numbers as to not sacrifice the low end torque. Remember that torque is what moves the vehicle. I see way to many overcammed cars that only make power from 3500 RPM and up. This cam will make great torque at 1400 rpm and up which will help that Blazer to really accelerate from just off idle all the way to 6000RPM.
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02-11-2014, 07:54 AM
#8
Will do.
Thanks, this is the kind of info I am looking for, I get the specs, but just don't understand how the affect things.
Yes I do run this very cam in a ls1. You can run bigger cams but because you are running this in a relatively heavy vehicle you will want to be a little conservative in your duration numbers as to not sacrifice the low end torque. Remember that torque is what moves the vehicle. I see way to many overcammed cars that only make power from 3500 RPM and up. This cam will make great torque at 1400 rpm and up which will help that Blazer to really accelerate from just off idle all the way to 6000RPM.
02-11-2014, 09:29 AM
#9
Launching!
Understanding camshaft specs requires a thorough grasp of 4 cycle engine operation and how the valve opening and closing events affect it. There are a great many articles written on this very subject and if you so desire can be accessed with a simple google search such as how to pick a performance camshaft etc .Engineers work with very sophisticated parameters and tools to design modern day cams and do constant testing to optimize their products. With that in mind, trust the manufacturer as to what they recommend for your intended use.