In my personal car I ran the supertech stuff with NRG Techs .505 lift cam Revved it to 10,500 no issues! Laskey Racing does a great job!

 

I had one Breck the same way. Till this day we don't know why. The car was running prefect when put away for winter, we went too warm the car up and same thing happened. I now run ferrea

 

Interesting, yeah i have a feeling i will never really find out Why it broke... The car was running great, then all of a sudden boom....

 

Never had an issue with one breaking but did see a few mushroom at the top of the shaft, we disassembled a head they were being used on, and slide them out, a few of them were stuck inside the head and had to be pushed out.

 

Have you called ST and spoken to one of their techs? They are scary knowledgeable and will be sure to ask the questions needed to find your answers.

 

That i have not done yet...

 

90% of the time it is a machine or installation error. your talking about a part that moves over 100,000 per minute with out proper spring rates, valve clearances, valve lash, retainer to seal clearance, camshafts, and everything between. its tuff to blame a valve for the mistake. there is some crazy things that happen at that rpm.

 

We completely agree with Jason.

As for supertech, we run them on our race cars as well as our customers cars and have not had any problems.

Sorry to hear about your mishap.

 

yes, Martin and ***** are very on top of things call out there and tell them what happened, i am pretty confident you will be delighted with their response and action

 

I thought your old motor dropped a valve.

 

x2

Great people !

 

ask levi how his laskey built ST valved motor treated him

 

I will try and give them a call tomorrow then thanks...


Ive just never seen a valve break so smooth and clean like this one is.. I will see if i can take a close up picture of it tomorrow..

 

I'm running supertech flat faced valves, been running them for 3 seasons. Always felt like I was on barrowed time. I've been wanting to send off a head and have it done up with manley or ferrea.

Who do you guys recommend to send a head to?

Thanks for your time,
Dk

 

Im going to give Supertech a call today

 

How does the rest of the valve look ( the shaft ) , did it mushroom at all ?

 

Like did it mushroom where it broke @ the retainer? if thats the question, then no it broke of CLEAN there...


i was to busy yesterday taking the turbo apart to check and see if it was gone, thankfully it is still ok!!! Ill take the rest of the valve out tonight....

 

i had some of my supertech valves mushroom, called supertech and they were awesome to deal with. Gave me an explanation as to why it might have happened, gave me an AWESOME deal on replacement parts and were very easy to talk to!

I love their service.

 

What were the reasons ?

 

I don't sell Supertech stuff but in their defense some of these issues guys are talking about are caused by other stuff going on. Instead of looking straight at the valve, try to figure out what could cause the damage to the valve.

The mushrooming or dimpling on the valve tip "could" be from the hardening process on the tips but most likely is it from the spring not controlling the valve or too much lash. Most stainless valves are all made in argentina and they have similar finishing processes. There are cheaper valves that go thru less processes and have case hardened tips and better valves that have a deeper progressive hardened tips. No matter how good the quality of the valve if you have a spring that is not controlling it and its bouncing around everywhere every time it closes.. its going to tear **** up. If you check your lash frequently you will notice this issue starting a lot sooner and you can replace the valves and springs before its an issue.

If a spring is really out of control you can fatigue a brand new set in a couple dyno pulls. Most of these $6 springs people are using need replaced every couple races. Good springs can last years. It just depends on the application. Guys pushing **** real hard need to pull springs and check them every couple races at least. In other forms of racing springs get checked at least every event and often mid-event. I know some guys here are pushing big power and big rpm and have never thought to check a spring. It will save you $$ in the long run and you'll make more power.


Just my $.02 opinion

 

I called Supertech today.. Very helpful guys, i am sending them some pictures and will probably be sending them the broken valve and the valve spring in that cylinder for further inspection.

Pulled the turbo apart last night and thankfully it is ok! lol

Block on the other hand is worse than i thought, good chance it will need to be bored out to 84.5mm to clean it up

Thanks for the info Luke!

 

IN supertech springs' defense, Ive had the same set of them in my pile for 3 years. Checked them last freshen up (8 months ago), I had one at 77 pounds @ installed height, all the rest were 79-80 (80 being spec),checked per lift and they were all good too .

Not bad for a car beaten as hard and often as mine. Still I shy from their valves....

 

Hopefully they take care of you

I will never run anything but Ferrea, they make good stuff... I was shocked when my friends recently had one half of a Ferrea lock fail, he only noticed it because he was switching cams. I am starting to wonder what caused it or if it was just a fluke.

 

x3


Im running OEM locks too, but the H only sees 8500-9K

 

He never saw much over 9500 and the head was fresh from a well know porter, had GSR cams in it from day one. Not really sure what caused it the valve tip was fine and the retainer was just slightly chipped (im assuming from the lock breaking) so he replaced it and went out and made 700whp a few days later.