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Supertech Valvetrain Package ?

Killer4Ever

By Killer4Ever,
in Engines & Forced Induction

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Killer4Ever Apprentice

Killer4Ever

Posted
Posted

Hey, I'm building my RB26 and looking at Supertech products

saw this package which is really a good deal:

http://ipg-supertech.com/cart.php?ta...category_id=68

Valve Spring and Titanium Retainer Package ------- SPRK-ts1015/rb26

Supertech Complete Valve set 1.00mm oversize ----NIVN-1032, NEVI-1032

Supertech Bronze Valve Guides --------------------GDE-NSR7-ET

Tomei cams 272 lift 10.25

will be revving 8800 rpms 800+whp

do you recommend using this set up, any bad experience, anybody running them ??

are above parts enough? what do I need more

which springs are more reliable tomei steb 2 valve or supertech ??

does it worth going 1mm oversize valves??

thanks in advance

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Killer4Ever Apprentice

Killer4Ever

Posted
  • Author
Posted (edited)

I love the supertech stuff. By far the best spring available on the market today.

And the above parts won't be enough. You'll need an engine and a turbo also. The camshafts won't make any hp

I have a fully built RB26 capable of 1000hp and 9000rpms, everything sorted up I'm just worry about the head

Edited by Killer4Ever
kitto Mentor

kitto

Posted
Posted

I've looked into this before, i've only found one report that supertech's were no good. And that was to do with the spring seat from memory. They weren't all the same.

There was a thread on it on here a few weeks back.

Only bad thing i could find on them. As down the track i'll be looking for a full valve train kit for my RB26 aswell.

I think i'll be just using Ferrera valves, Tomei Type B valve springs, bronze guides and thats it to suit my application.

bigmikespec Veteran

bigmikespec

Posted
Posted

There was another issue with a head using Supertech stuff but I and the engine builder is not sure if it was a Supertech issue or not.

Not sure if I mentioned this before but Supertech were orignally did OEM replacement head components for all makes and models of cars and then after a while moved into the performance market. They are well priced.

Ferrea are a performance valve and always have been.

The Dan Grand Master

The Dan

Posted
Posted

Supertech do two types of valve springs for the RB26 - one for use with the standard seats and the other to use with none (or their own).

Even though Ferrea make a great product, if you use Ferrea valves and then the springs from someone else, then the buckets from someone else again, I think you'll end up having mismatch problems. It is always better to stick 100% with the one manufacturer in these cases to ensure 100% fit with no problems

kitto Mentor

kitto

Posted
Posted

Supertech do two types of valve springs for the RB26 - one for use with the standard seats and the other to use with none (or their own).

Even though Ferrea make a great product, if you use Ferrea valves and then the springs from someone else, then the buckets from someone else again, I think you'll end up having mismatch problems. It is always better to stick 100% with the one manufacturer in these cases to ensure 100% fit with no problems

Yeah i'm fully aware of this. You should however be able to use one valve made by X manufacturer, but make sure you retain the same single manufacturer for the springs, retainers, spring seats (if needed - Type B Tomei set just uses the factory spring seat).

I'm not fully sure of what issues the guy on here had, i can't remember what was in the thread exactly. What he was using etc.

r33_racer Grand Master

r33_racer

Posted
Posted

That was me who had the issue. It was a supertech rb25 hydraulic head valve spring upgrade kit. Had springs, retainers and spring seats for exhaust side. The retainers were out of spec slightly, when fitted the valve tip heights in relation to the retainers were all over the place. It was an easy fix, just had to refit the factory steel retainers and problem was solved.

Other then that the quality of everything seems great!

Not sure if it was mentioned yet, but apparently supertech makes the tomei kits, so you are getting the same bits anyway.

Gerg_R31 Mentor

Gerg_R31

Posted
Posted

Valve tip to retainers all over the place.... this measurement has no relevance ever.

Valve protrusion measurement from spring base to tip of valve for help with setting the shim clearances in rb26's neo rb25's or rb25's with solid lifter conversion

with the rb25 being hydraulic the valve tip length has only one purpose which is to sit above the retainer and that's it.

Fererra parts can only be used with fererra parts, spring bases springs retainers valves valve locks etc

the hydraulic and shim buckets don't need to change to suit the valve train manufacturer

stainless steel valves will need the bronze guides or bronze sleeves otherwise the friction will ware both the guides and valves out

+1mm valve head hope you intend to get the seats re cut

10.25mm lift good chance that you will need to machine / die grind the head out. also you will need to re check the cam base circle to top of bucket clearance (18 thou intake 15 thou exhaust)

All this work you may as well get the head flow bench ported professionally and send the head to a machine shop so the job can be done right the first time

r33_racer Grand Master

r33_racer

Posted
Posted

Valve tip to retainers all over the place.... this measurement has no relevance ever.

Really?

So when the bucket is pushing on the retainer then that has no relevance ever???

Interesting....

Gerg_R31 Mentor

Gerg_R31

Posted
Posted

If its hydraulic rb25 the retainers should sit slightly above the collets with a large amount of valve tip sitting above both, converted to under bucket shim or rb26 the retainers should have the section to locate the shim. if its hydraulic still then obviously you were supplied the wrong retainers

r33_racer Grand Master

r33_racer

Posted
Posted

Still running the hydraulic head, hence why tip height doesnt matter as its taken up by the bucket, however, yes wrong retainers appear to be the case in my situation as the majority of the tip heights were all well below the retainer when fitted.

I should have fully explained what the deal was. I was lazy as It was already in the other thread.

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