Just curious if i could hurt anything running springs that are good for .600+ lift with my hotcam and 1.6's

Ive heard its not good to do it, but wanted to know if it would really hurt anything besides performance.

 

OTHER THAN PERFORMANCE????!!!!!! WHAT ELSE MATTERS????!!!!!!

It really shouldn't hurt performance much. It will take about 5rwhp, topps.
You should be fine.

 

I'm going out on a limb here talking about something I don't know a lot about, but wouldn't overkill springs put down more pressure and thus cause a bit of extra wear and tear on the valvetrain? So one downside might be a bit more wear than if they were not way overkill.

Someone correct me if I'm wrong

 

Not necessarily. When you do springs, put a decent spring in. Bigger isn't always better, but its almost never worse, in our applications anyway. As long as you dont go so big that you kill your lifters, the bigger you go, the improvement in valvetrain stability and dynamics should offset any power loss that theoretically may occur because your using stronger springs.

 

Sounds good, ive just heard that you could put more unwanted stress elsewhere on the valvetrain, which i didnt want to do.

Thanks guys!

 

http://www.rehermorrison.com/techTalk/03.htm

" I have never installed stiffer valve springs on an engine and lost power; the improvement in valvetrain dynamics more than offsets whatever additional power is required to overcome the springs' resistance."

Bret

 

Well then i guess the springs that come with it, ill keep

Thanks guys for the quick and informative answers

 

That's a good website. I haven't gotten anything done in the last 90 minutes because I've been reading those articles. Thanks for posting that site, I think.

 

http://www.cranecams.com/?show=productNews

Alittle more info... Scroll down to valve springs....

 

No Problem, I know the feeling.

 

You shouldn't loose any power with stiffer springs, not only do you get a more stable valvetrain, aslong as you have a 1 valve spring working against you but the other working for you, you'll never loose power. There are 16 springs, when one is opening, the other is closing, one is pushing the the cam to open the other so they just cancel eachother out.

The only power loss would occur is from these:

1. Lost heat energy as you compress a spring some of the effort goes away to heat so you're converting a very small amount of mechanical energy to heat energy from compressing a spring, but nothing lost from effort required to compress as a result of stiffness.

2. the roller on the lifter is now pushing much harder on the cam which causes more friction; therefore, causing some power loss there aswell.

Now the other drawback is your cam/lifters shorten their life span.

With my cam I'm running about 395LB open pressure at my lift, with higher lift it would be more. Regardless, I think the hydra rev adds another 70 LB at my lift or so, so a total of 465lb on the roller of the lifter, but only 395 on the plunger, good thing for the hydra rev.

Regardless, you'll most often only benifit from stronger springs unless you go totally overkill.

 

I wrote a "primer" on valvesprings that you might find interesting. Go to www.kennedysdynotune.com and click on the "Tech Tips" button on the lower left menu bar. Follow the link to "Valve Spring Tech".

Rich

 

toss on some 1.7's and have no worries

 

With my new 227/233?? Puts me over .600

 

oh you mentioned your hotcam, thats the only reason i mentioned it.