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So Kracka....are you saying that the 95mm isn't necessary. Because I was thinking of just buying the Halltech Air Intake, ported intake manifold and porting the stock TB to 91mm or just leave the TB stock. What do you suggest since you have the experience with your car? Thanks in advance
I'm a bit partial to my setup, but I think the combo I'm running is rather ideal for a bolt-on street car setup with no dreams or aspirations of forced induction. SoCal had my ported intake manifold turned around in under a week. I'm sure he'd exact gasket-match to 91 or 95mm if that's what you'd prefer (grinding out plastic is the easy part, it's the final finishing details that take time).
I'm also a big fan of retaining OEM gaskets & seals whenever possible since GM did the R&D for me with longevity & durability in mind. Nothing annoys me more than generic aftermarket gaskets that won't seal or start leaking and/or fail after a short time. This is the major reason I will not be buying the Cicio sport cats even though they use the ideal 400-cell GEN2 4.5" core for the C8. If they would machine a groove into their inlet flange to accept an OEM gasket I'd pay their premium and order a set, but I'm not paying a premium for a generic flange + gasket.
The Halltech Hornet air box is very large compared to stock so much that any aftermarket or stock air filters can actually fit inside the massive Hornet air filter.
Just this week ordered the Carbon pTR Intake Manifold from Jason at Harding Performance to match up with the Hornet.
No; this seems to be a feature that all the aftermarket intake manufacturers drop.
I just dont understand why they drop this.... sure you'll be able to get your 1 or 2 great Dyno Readings to say it produced power but as far as reliable power i have to raise a hand and ask where the fins are. Without those fins you'll often see spikes in your AFR's from lean to extremely rich. All the way back to the days of AEM Intakes on 4 cylinders we did back to back testing with fins and without and the only way to get consistent AFRs was with the fins.
I know this system has a velocity stack to help smooth the airflow; but i wonder if its enough. Guess we'll see.
I'm not justifying it as right, but my theory is that the majority of aftermarket intakes don't have their R&D get much past the dyno room and are made to perform well in the majority of circumstances with normal conditions. OEM endures a much more rigorous R&D process and must perform well in all circumstances under varying extreme environmental conditions. I've typically had good luck with most aftermarket systems from the big name companies (AFE has been my typical go-to for years, along with K&N and a few others). This is really the first time I've given a hard look at Halltech since I do think they made a very good product for the C8 and is likely the one I end up with pending independent dyno verification. Does that mean its perfect and there isn't room for further improvement? Absolutely not. Maybe it will be refined down the road like AFE already changing the design of their drop-in filters, but more than likely they're probably thinking their molded lid partition and velocity stack are adequate for the intended usage/goals.
I ran into the same thing way back in the day with DSM MAFs and guys ripping the honeycombs out of them trying to increase noise and find a tiny bit more airflow. On a dyno it become much tougher to find consistent AFR readings and things could start acting up at speed on the road, especially if there was excessive air/wind turbulence. Another popular mod was the 1G DSM "Blaha MAF" which was basically someone Dremeling the thing in half and grinding out material to increase unmetered airflow getting into the engine in an effort to lean out the car under boost.
Absolutely currently scheduling a dyno for next week and will do another after the pTR is installed and will post
I think that's you I saw on the schedule. If you want us to do the intake manifold we can do a same day before and after. Not sure if you follow our work but we are not just a dyno/tuning place. We build these cars and many others.
From: Early 2020 Z51 Coupe, Original Owner, Ahwatukee Foothills, AZ
Originally Posted by Cordes Performance Racing
I think that's you I saw on the schedule. If you want us to do the intake manifold we can do a same day before and after. Not sure if you follow our work but we are not just a dyno/tuning place. We build these cars and many others.
Yes sir that is me on your schedule for Feb 22. Should be receiving the pTR intake manifold in the next few weeks for our install and a comparison dyno
Yes sir that is me on your schedule for Feb 22. Should be receiving the pTR intake manifold in the next few weeks for our install and a comparison dyno
Just as an FYI, i was told within 2 weeks on my manifold; it took nearly 4 months. A fair number of manifolds failed in pressure testing and needed to be sent back. Goodluck!
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