Weird valve spring question

Reply Subscribe

Thread Tools

Search this Thread

Jul 31, 2020 | 02:08 AM

Dr1rrrr

Thread Starter

Staging Lane

iTrader: (1)

Joined: Aug 2019

Posts: 66

Likes: 3

Weird valve spring question

If you had a cam with different lift specs for intake and exhaust could you run 2 different pressures of valve spring?

Jul 31, 2020 | 04:39 AM

Jimbo1367

TECH Senior Member

Joined: Jul 2009

Posts: 8,030

Likes: 661

You would normally run the higher pressure springs. I’ve never heard of anyone running setting per intake/exhaust

Jul 31, 2020 | 06:24 AM

Darth_V8r

Moderator

iTrader: (4)

Joined: Jul 2014

Posts: 10,451

Likes: 1,872

From: My own internal universe

I have treated spring rates based more on ramp rates than gross lift. Never really heard of anyone splitting kits, but I am sure it happens.

When exhaust lift is lower, typically say .020, not enough difference to matter.

Jul 31, 2020 | 07:46 AM

TurboBuick6

TECH Enthusiast

iTrader: (2)

Joined: Oct 2010

Posts: 707

Likes: 124

Quote:

Originally Posted by Dr1rrrr

If you had a cam with different lift specs for intake and exhaust could you run 2 different pressures of valve spring?

Normally you will not see this until you enter the Max Effort very high RPM arena. Otherwise same springs all across.

Jul 31, 2020 | 11:50 AM

Dr1rrrr

Thread Starter

Staging Lane

iTrader: (1)

Joined: Aug 2019

Posts: 66

Likes: 3

Ok thanks guys I was just kinda curious if it was possible

Jul 31, 2020 | 03:39 PM

RB04Av

TECH Addict

Joined: Dec 2017

Posts: 2,166

Likes: 961

Definitely possible; definitely not the usual way.

Reply Subscribe

Reply Share

First
Prev
1 / 1
Next
Last