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R34 Neo Valve Springs?

Wyn

By Wyn,
in Engines & Forced Induction

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Wyn Contributor

Wyn

Posted
Posted

Anyone had any experience with getting and fitting uprated valve springs for a Neo head ?

Am looking for a full set to upgrade a head I am using to go with Tomei type B cams

Does anyone know if 2.6 GTR valve springs can be used or is it Neo only ?

Other then that have only seen Spool and Ferrea who list them as available , unless anyone knows otherwise?

As for Ferrea I see they list them as needing to be used as a kit, does that mean with using o/e valves or with their own valves also?

Cheers

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https://www.sau.com.au/forums/topic/458497-r34-neo-valve-springs/
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Kmac92 Enthusiast

Kmac92

Posted
Posted

From what ive read today tomei actually make a valve spring kit for the type b cams. A few people have questioned the quality of the japanese springs on past posts however and yeh basically recommend ferrea as you said and if it says use as a kit id probably follow what they say....if the heads off then may aswell.

Alot of people couldnt justify the need to change the springs, as the type b cam is a direct drop in and does not require such a mod (unless they are rooted or your running mega boost)

Wyn Contributor

Wyn

Posted
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Posted

Yes the head is off and plan to have it flowed and ported as required

I would like the engine its going on to be able to run up to 8.5k rpm but don't believe the stock springs will run to that?

Not saying it will use all the revs but providing its safe to that then I rather change them

Certainly whilst its in kit form I want to change them now rather then kick myself later

Will have another look at Tomei springs as I can't say I noticed them for a Neo, only gtst ?

Kmac92 Enthusiast

Kmac92

Posted
Posted (edited)

Yeah definatly, I agree id do the same and change them all while its out for sure.

As for tomei springs, went through my history and yes it was for rb25 ( not neo). However i came accross performance springs australia....heres the link may be some kind of help to ya ☺

http://www.performancesprings.com.au/retainers.html

**edit**

Those ferreas look the goods and by all the reviews ive seen its definatly what id go with when it comes to replacing mine. Whether its a little more or not, i wouldnt go cheap on springs..

Edited by Kmac92

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