Valve spring help
Thread Starter
Teching In
Joined: Jul 2009
Posts: 11
Likes: 0
Valve spring help Going with a comp cam off the shelf cam....How much valve lift and seat pressue are the stock springs good for??
Need spring to support a .5 valve lift and 130# seat pressure I believe...cant remember the open numbers
Need spring to support a .5 valve lift and 130# seat pressure I believe...cant remember the open numbers
If you only need around .500 lift, some yellow ls6 Z06 springs should be just fine. I definitely wouldn't reuse the stock ones, they can barely support the stock cam. Check ebay, I've seen them for around 60 bucks new.
Thread Starter
Teching In
Joined: Jul 2009
Posts: 11
Likes: 0
Should I get roller rockers? What is the stock ratio?
Thread Starter
Teching In
Joined: Jul 2009
Posts: 11
Likes: 0
I do feel confident that I can set uo the valve train. My fother and I was planing on putting a new timing chain in though...the car has 43k on the clock. One question though...how do I set the timing?? Is it all set up in the cam sensor? Any suggestions on this??
I dont know if I want to use the stock rockers or get adjustable rollers....I bought the hardened pushrods that comp recomended...should I still check the pushrod length??
Checking pushrod length is always a good idea.
Valve seals can be changed when the valve springs are off.
Your computer decides when the coils fire.
Stocks rocker arms are excellent, even for high HP applications.
Valve seals can be changed when the valve springs are off.
Your computer decides when the coils fire.
Stocks rocker arms are excellent, even for high HP applications.
Trending Topics
TECH Regular
Joined: Mar 2007
Posts: 455
Likes: 0
I second that,never re-use the old OE Springs.You would be asking to float a valve sooner or later.Why not go with some 918 Comp Cam beehive springs to match your Comp Cams camshaft.They are designed for .600 maximum lift and are a valve spring for a mild street/strip cam.Always be sure to ask the experts about the ideal camshaft for your setup.The worst thing you can do is go top big,and end up with a car that falls flat on its face from a dig.I believe the maximum lift on the stock springs is .535.These guys also have some proven custom bumpsticks that some claim...resulted in better HP/TQ numbers than the off the shelf CC camshaft.http://www.thunderracing.com/
Last edited by lovescamaros28; Jul 22, 2009 at 06:43 PM.
LS1 Tech Stories
The Best V8 Stories One Small Block at Time
Gas Monkey Built a 6-Wheel Ferrari Testarossa With a Corvette LT4 Engine
Verdad Gallardo
7 Most Reliable High-Performance Engines GM Has Ever Built
Verdad Gallardo
Amazing '71 Camaro Restomod Is Modern Muscle Car Under the Skin
Verdad Gallardo
6 Common C5 Corvette Failures and What's Involved In Repairing Them
Pouria Savadkouei
Retro Modern Bandit Pontiac Trans AM Comes With Burt Reynolds' Autograph
Verdad Gallardo
Top 10 Greatest Cadillac V Series Performance Models Ever, Ranked
Pouria Savadkouei
Top 10 Most Powerful Chevy Trucks Ever Made!
Hennessey's New Supercharged Silverado ZR2 Has 700 HP
Verdad Gallardo
Coachbuilt N2A Anteros Is an LS2-Powered C6 Corvette In Italian Clothes
Verdad Gallardo Thread Starter
Teching In
Joined: Jul 2009
Posts: 11
Likes: 0
It's a 212/218 .522/.5xx
It's a shelf cam...nothing major. I didnt want anything to extreme because it is going to be my dd at school this fall...My dad said after we do the cam we are going to look into setting up the rearend with a different gear ratio. If I can sneak it past him I'm want to put a compucar nitrous in a bag kit on it..or what I'd like to do is put a procharger on it one day.
This was origanally his car...baby....and now is my graduation present. He's going to buy a 2010 camaro now though.
I just hope that the cam,gears, and tune will wake this thing up.
It's a shelf cam...nothing major. I didnt want anything to extreme because it is going to be my dd at school this fall...My dad said after we do the cam we are going to look into setting up the rearend with a different gear ratio. If I can sneak it past him I'm want to put a compucar nitrous in a bag kit on it..or what I'd like to do is put a procharger on it one day.
This was origanally his car...baby....and now is my graduation present. He's going to buy a 2010 camaro now though.
I just hope that the cam,gears, and tune will wake this thing up.
It's a 212/218 .522/.5xx
It's a shelf cam...nothing major. I didnt want anything to extreme because it is going to be my dd at school this fall...My dad said after we do the cam we are going to look into setting up the rearend with a different gear ratio. If I can sneak it past him I'm want to put a compucar nitrous in a bag kit on it..or what I'd like to do is put a procharger on it one day.
This was origanally his car...baby....and now is my graduation present. He's going to buy a 2010 camaro now though.
I just hope that the cam,gears, and tune will wake this thing up.
It's a shelf cam...nothing major. I didnt want anything to extreme because it is going to be my dd at school this fall...My dad said after we do the cam we are going to look into setting up the rearend with a different gear ratio. If I can sneak it past him I'm want to put a compucar nitrous in a bag kit on it..or what I'd like to do is put a procharger on it one day.
This was origanally his car...baby....and now is my graduation present. He's going to buy a 2010 camaro now though.
I just hope that the cam,gears, and tune will wake this thing up.
I would recommend springs and pushrods on ANY aftermarket cam. We have seen time and time again on stock LS1 cars have valvefloat with the factory springs on the factory cam! If you are changing cam, then springs need to be changed as well. You might also look into some other aftermarket cams as well. There are several larger cams out that will produce more power than the cam you are looking at while still being EXTREMELY streetable and reliable on a daily basis. What mods are done to the car already? Any headers or induction mods? Let me know and I'll see if we can help you get a little more power out of your new setup!
Jon
Jon
Thread Starter
Teching In
Joined: Jul 2009
Posts: 11
Likes: 0
Thread Starter
Teching In
Joined: Jul 2009
Posts: 11
Likes: 0
I've been watching the box wrench videos on youtube and think I can do the cam swap fairlly easy.
I've bought the new ls6 springs new retainers and new locks.
My question is how do I install the new springs? I know I need a compression tool but will the valve fall down into the motor? How do I keep this from happening? Do i need to be at tdc to pull the spring and go through the full rotation to remove all of them? Will I need to pull the heads.?? Is there a write up somewhere on the net for a cam and spring install??
What is valve float and what effects can it have on my motor??
Thanks for the help guys
-Jeff
I've bought the new ls6 springs new retainers and new locks.
My question is how do I install the new springs? I know I need a compression tool but will the valve fall down into the motor? How do I keep this from happening? Do i need to be at tdc to pull the spring and go through the full rotation to remove all of them? Will I need to pull the heads.?? Is there a write up somewhere on the net for a cam and spring install??
What is valve float and what effects can it have on my motor??
Thanks for the help guys
-Jeff
Thread Starter
Teching In
Joined: Jul 2009
Posts: 11
Likes: 0
I've also seen a couple different ways to install the loks
1st. compress the spring with the retainer and put the loks in while compressed
2nd. install the loks into the retainers and press the retainer onto the valve.
Witch way should I do it??
1st. compress the spring with the retainer and put the loks in while compressed
2nd. install the loks into the retainers and press the retainer onto the valve.
Witch way should I do it??
Thread Starter
Teching In
Joined: Jul 2009
Posts: 11
Likes: 0
Bump...Am I going to need an air compressor to install the new springs??? I dont have one and this part of the job has me worried because I dont want to pull my heads incase the valve drops.
Thanks
-Jeff
Thanks
-Jeff
