what valve springs ?
Thread Starter
Drifting
Joined: Jan 2010
Posts: 1,624
Likes: 48
From: Saudi Arabia
what valve springs ?
cam installed by previous owner in my '94
I don't know the cam specs and the car needs new valve springs...
what valve springs should I go with ?
someone told me if I don't know the lift of the cam it's a big problem !! I may choose the wrong springs !
I don't know the cam specs and the car needs new valve springs...
what valve springs should I go with ?
someone told me if I don't know the lift of the cam it's a big problem !! I may choose the wrong springs !
Le Mans Master
Joined: Aug 2010
Posts: 9,272
Likes: 17
cams arent that spendy, as long as you're doin the top end, change cams, that way you'll know, there's several ways to measure lift and duration with out removing it , but by the time you've done that you could have the new one in. i'm wondering why you think you need springs and how you came about that with out knowing how to measure a cam?
Thread Starter
Drifting
Joined: Jan 2010
Posts: 1,624
Likes: 48
From: Saudi Arabia
Team Owner
Joined: Oct 2004
Posts: 81,241
Likes: 3,062
From: altered state
St. Jude Donor '05
Its called valve float and not good for anything.
Sounds like he either doesnt have the right springs in there or they arent setup right.
Measure what you have first then proceed.
Sounds like he either doesnt have the right springs in there or they arent setup right.
Measure what you have first then proceed.
Race Director
Joined: Apr 2000
Posts: 15,344
Likes: 4,008
From: Texas
Best bet is to determine the cam lift. If that's not possible...
Given that it's a street car I would be surprised if the cam is over .625 lift. With that as an assumption then I would look at CompCams Beehive™ Valve Springs.
Specifically I'd go with part number 26918-16. You'll also need new locks and retainers. This should be overkill (relative to how much lift these springs support) for whatever cam the engine has. Seat and open pressures are typical of springs in a street engine. Of course you do so at you own risk since you don't have the cam specs.
Linky
Given that it's a street car I would be surprised if the cam is over .625 lift. With that as an assumption then I would look at CompCams Beehive™ Valve Springs.
Specifically I'd go with part number 26918-16. You'll also need new locks and retainers. This should be overkill (relative to how much lift these springs support) for whatever cam the engine has. Seat and open pressures are typical of springs in a street engine. Of course you do so at you own risk since you don't have the cam specs.
Linky
Thread Starter
Drifting
Joined: Jan 2010
Posts: 1,624
Likes: 48
From: Saudi Arabia
measure long and short distance (idk from where) , subtract and then multiply by rocker arm ratio ?
Best bet is to determine the cam lift. If that's not possible...
Of course you do so at you own risk since you don't have the cam specs.
Linky
Of course you do so at you own risk since you don't have the cam specs.
Linky
