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L-Series Valve Springs For High Lift Cam


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#1 Groundhog

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Posted 11 April 2016 - 09:19 AM

I've heard mixed reports about valve springs breaking when using a high lift cam,

In particular the inner valve spring.

What type of valve springs are people fitting?

 

I have a cam with 0.490" In/Ex lift.



#2 Lurch ™

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Posted 12 April 2016 - 12:57 PM

With that lift, Is the cam a works 72deg item?
If so, STD valve springs will be fine.

#3 Groundhog

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Posted 12 April 2016 - 01:29 PM

The cam I have the option of using is a TIGHE 492C.

It comes already fitted to a reconditioned N42 head.
I need to decide whether to go with this cam or change it for a 72 degree item.

 

http://tighecams.com.au/cars.htm


Edited by Groundhog, 12 April 2016 - 01:29 PM.


#4 dat2kman

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Posted 12 April 2016 - 03:18 PM

Do you mean tighes 462c grind, as per their tables?
492 s not shown.

For a mild grind, the Performance brand springs are fine.
Does it have springs fitted?
We can pull them out and comare stock to the Performance RR4'
I have plenty of both!

Edited by dat2kman, 12 April 2016 - 03:20 PM.





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