Halltech

Friday, we had quality control stop production. I could not believe it, but there is a problem with the bridge (tube) part of our intake that will cause an airleak over time. It was pointed out to me Friday afternoon, so I did some of my own testing and found that the hole for our grommets was drilled too large for the 300 grommets we have, but in addition, the plastic is way too thick, causing more restriction to flow that I want. That means tossing over 25 systems.

The solution is not easy. It will require machining the one mold to open up the entrance, and just past the MAF to 105mm. Our plant does there own molds so they can get it done in one week to 10 days. We then have to have it re-textured, which can take two to three days.

I apologize for this delay, and ask for your patience. Luckily this was caught before we started shipping the masses. Three did ship before this was caught and I will contact them to get new systems out as soon as possible. In the end, the plastic units will be identical in every way to the carbon CKNZ.

Jim Hall

Halltech

Our carbon fiber units are 4 weeks backordered, so that is not a solution.

One thing that we have found out for sure, the plastic Stinger-RZ does not need compensatory tuning (MAF translation tuning) at all. Once it mimics the carbon fiber unit, we may have to offer both filters as we do with the carbon fiber units.

Patriot77

Thank You for your incredible honesty Jim. We know that you want it to be right and that means a ton to all of us who have it on order.

firstgear

I am good on the CKNZ.......I have a ship date now! If it slips slightly it is not the end of the earth........

Flyboy22

I'm confused. Are you saying after the revision that it WILL require tuning to use the high flow?

That's a deal breaker for me.

Halltech

I appreciate your patience.

Halltech

The revision will require the Synthetic filter and no tuning. The high flow filter will be optional.

None of our intakes require compensatory tuning.

"Require tuning" What does that mean? It means that an intake under-reports the actual air passing by the MAF sensor. It creates positive Long Term Fuel Trims, which end up leaning out Open Loop.

The Synthetic Filter allows perfect LTFTs so no type of adjustments are ever necessary with our intake combinations.

I know of one intake that was put on the market that had 14:1 air fuel ratios in OL. That would qualify as a must tune intake.

Halltech

Anyone who has purchased the CKNZ will get delivery. We are at 17 to go. No problems with the CKNZ except delivery capacity.

Halltech

We are planning on shipping both filters with all orders for this delay.

Patriot77

Iam a "mechanical dummy". So which one of the 2 do I have my Chevy dealer install??? Maybe you can mark the one for dummys like me.

Halltech

We pre-assemble the intakes with the filter already in the airbox. Have them install the Synthetic filter which will be marked as such and in the airbox. The high flow will be marked, and is for your day at the track with a few more points of Octane.

dvandentop

wow that is really nice of ya. thanks for the update and openness as this product comes to final stages

Halltech

Making these kinds of decisions is the hardest part of owning your own business. I figure some customers will jump ship, but what I am doing is necessary to make our intake perform like the CKNZ.

In my zeal to keep the fuel trims perfect, I actually went too far in that direction. Since starting the plastic version, we have become more and more confident that the CKNZ, running the high flow filter, is not going to be a problem. I have 3500 miles of high performance use, and dyno testing with the high flow on our Z07.

The CKNZ uses the high flow filter for ultimate performance, and should at least a review of fuel trims on the dyno, but not necessarily tuning of any kind. The SynFilter needs no review, just bolt and go.

This will be the case with the plastic version as well when we are done with the mold.

fjaphd

Thanks Jim, We know you will make it right-can't wait for mine!

blown383c4conv

Jim what octane do you have in your neck of the woods? Anyone test the hi flow cknz with 91 Octane?

Halltech

93 here. We have had a dyno test in MA with 91 Octane I believe. There was one in the SF area that was the first A8 and was 37 to 39 RWHP. I will have to dig to that one, but the MA dyno yielded:

Halltech

This dyno was just sent last week by Wayne. Unfortunately, he did not do a stock pull, but about the best stock I have seen is around 572.
The air fuel ratio was spot on with our Synthetic Filter.




The throttle body was ported as well on this Z06

Halltech

Thursday we were able to ship the first three units.

Mauricio W.
Top Speed MS
James H.

These systems will all be replaced when we get our new unit done. I personally checked these three and they were fine as far as the airleak, but need the upgraded bridge.

Safe to run in the meantime. Guaranteed 100% safe.

Bmbarney

Jim on a slightly different subject ... can you or anyone tell me if a ported throttle body along with the airbox may help throttle response too. It does not sound like it helps increase any power at all. This is a whole different area that I know nothing about.

http://weaponx-c7.myshopify.com/coll...le-body-ported

blown383c4conv

Thanks for the info, hopefully mine ships out soon. Payment was pulled and now I'm chomping at the bit to get it.