suscribed
:canadaflag:

I would like to see some vendors like Ragin' Racin', Vette-Air, and some of the other guys who sell popular aftermarket camshafts to submit one of their products for testing.

Perhaps if someone had a used cam laying around, they could send it in for testing (and just list it by specification to avoid offending anyone). Afterall, the cam itself wouldn't be at fault for any findings - it would just be a matter of saying "what would be most stable" given the lift, lobe profile, etc.

Thanks Jason. Appreciate your efforts! :thumbs:

Might as well add Livernos and Vengance Racing to the list too..

Hahahaahahah.............. Great timing.:willy: I'm picking up my heads from WCCH tomorow !!!!

:cheers:
DH

:lurk:

Interested in #6. I am running Patriot dual springs and heavier exhaust valves (Ferrea Super Alloy for the Peanut Gallery). Any chance of you getting a hold of a Comp cam with the refined lobe design?

Mine are getting done right now with what WCCH currently recommended for my stock cam and no porting:

1. BT Platinum dual spring kit. For .660" Lift.
2. REV LS7 Exhaust Valve 1.615" 8mm 5.230" OAL w/.290 tip.

:cheers:
DH

The fact that Katech is willing to do meaningful research, the results of which promise to be of some practical use, is part of why I will continue to buy their products.

It was time for real research as opposed to chasing wild geese

I am elated to see Katech planning on taking a look at these popular setups to tell us what should work and what definitely won't work.

As Rock mentioned, the potential in helping people decide on rev limits, is also of benefit.

This research has tremendous potential, which can be put into use by a anyone who has followed these discussions as well as those who are already running stainless valves in helping them to determine if spring or valve changes might be needed for added safety margin.

Kudos to Katech for their stepping up with this. :thumbs: :cheers:

:lurk:

Agree silver, it speaks volumes that they are going to do this PURELY for our benefit to know what will or wont be safe to run in our cars is beyond gracious and shows while some things lie outside their business models they still care about their customers, and really people that arent even customers (yet).

definitely owe jason a beer or a frosty or some cupcakes or something, whoever sees him next!

I too would like to see this test just for verification that your Ti exh valves are a good replacement for the hollow stem stockers. I also assume you will summarize the results of each combination compared to the stock results (?). Are you going to be able to extrapolate any durability findings from your test?

Thanks for doing this as it should shed some light on all the speculation that has been going on. :thumbs:

:hurray: As with every other forum member, we all want to thank you for stepping up to do this, it definitely means a lot to me.

After studying this subject to exhaustion (to the point I am getting sick of it) the biggest questions I have come across in valvetrain stability besides the simple issue of weight is a follows;


Single vs Dual and how seat pressure, open pressure and harmonics effects the valvetrain with Ti and solid stem exhaust valves.

Stock rockers vs. popular aftermarket rollers such as YT, T&D, and Crower. We would like to see how much "over the tip weight" effects the valvetrain with the torquer cam (or similar).

For myself, I would like to see how different lobes such as comps LXL lobes that are designed for the 1.8 rocker compare to the torquer lobes.


Again thank you for the effort and I look forward to the results! :cheers:

This is awesome Jason. Kudos to you and the Katech team..

:thumbs:

:iagree::thumbs:

LOL...I'm getting mine on Monday.

:lurk:

Maybe the redlines can be moved up instead of down if the valves are being controlled well by the springs :D

:cheers:
DH

Well lets hope that the Katech research validates all the performance shops and cars that are running SS valves and dual springs. I know many of these engines are running above stock RPM so I don't believe that we will need to worry about lowering the RPM at all. :thumbs:

:cheers:
DH

First, a big thank you to the folks at Katech. This is very refreshing for a change.

I too am interested in seeing a test to compare a high quality roller tip rocker to the stock rockers. I am specifically interested in the Crower SS with needle bearing tip. In theory, roller tips should reduce friction and deflection of the valve stem, and possibly have greater inertia and earlier valve float for a given spring pressure, but I really want to know what happens in actual practice. My goal is the most reliable, light weight valve train that will maintain at least 7000 rpm redline. I also want to use beehive springs and Ti/Mo valves, but maybe not after all this is done!

I expect you will be doing a set of heads for me at the end of this.

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