ARH headers arrived today!
Thread Starter
Burning Brakes
Joined: Oct 2019
Posts: 828
Likes: 523
From: Colorado Springs
ARH headers arrived today!
Unfortunately, I wasn’t savvy enough to have them shipped to Jet-Hot. I will likely go with the polished finish, but am not sure how much (if any) heat reduction this will afford. Will not likely go FI, but rather bolt-ons and maybe a tune.
Thread Starter
Burning Brakes
Joined: Oct 2019
Posts: 828
Likes: 523
From: Colorado Springs
Pro
Joined: Feb 2018
Posts: 545
Likes: 551
From: Oklahoma
Congrats on the mods. Exhaust and headers my favorite mod on the C8. I jet hot coated mine for heat protection in the already hot engine bay. High flow cats and exhaust heat wrapped in ceramic blankets.
Soler TB or ECU tune for me. Pondering.
Soler TB or ECU tune for me. Pondering.
Last edited by Driv200; Jul 27, 2023 at 11:37 AM. Reason: Spelling
Thread Starter
Burning Brakes
Joined: Oct 2019
Posts: 828
Likes: 523
From: Colorado Springs
I've been chatting with @Kracka for his thoughts on test pipes. I'll see how I feel after I get the headers installed, before I consider ditching the cats. Probably wont do an exhaust because they're still stupidly expensive.
Pro
Joined: Feb 2018
Posts: 545
Likes: 551
From: Oklahoma
Agree with that. Over $10k in my exhaust set up. I can save you the learning curve and tell you headers won’t change your sound much. They are better than stock, but the high flow cats will make a bigger difference. But they aren’t cheap either.
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Race Director
Joined: Jan 2014
Posts: 10,709
Likes: 7,100
From: Fulshear, TX
300 bucks and literally takes only minutes to install. It's not a huge gain since the LT2 already had a nicely improved intake manifold vs. the LT1, but porting them shows about 3whp on the dyno. Gains aren't easy to come by on these cars so I'll take what I can get where I can find it.
Melting Slicks
Joined: Aug 2022
Posts: 2,784
Likes: 3,566
Paragon posted a video last week. Gains were....unimpressive. Inconclusive testing methodology muddied by 91 vs 93 octane, no baseline, etc. It looks like the tune was good for about 14whp over the bolt-ons on the 91. They never got a baseline stock tune with the bolt-ons on 93 unfortunately but I'd expect about the same result. These cars are so finicky about IATs and heat soak that I approach every dyno with a healthy dose of skepticism. Just the nature of the beast. Once these tuned NA cars start showing up in numbers and start logging those 60-130 times, we'll know what it actually does.
Le Mans Master
Joined: Oct 2005
Posts: 5,040
Likes: 879
From: Tampa Florida
Paragon posted a video last week. Gains were....unimpressive. Inconclusive testing methodology muddied by 91 vs 93 octane, no baseline, etc. It looks like the tune was good for about 14whp over the bolt-ons on the 91. They never got a baseline stock tune with the bolt-ons on 93 unfortunately but I'd expect about the same result. These cars are so finicky about IATs and heat soak that I approach every dyno with a healthy dose of skepticism. Just the nature of the beast. Once these tuned NA cars start showing up in numbers and start logging those 60-130 times, we'll know what it actually does.
Thread Starter
Burning Brakes
Joined: Oct 2019
Posts: 828
Likes: 523
From: Colorado Springs
Headers, throttle body and intake and easy bolt-on mods with proven performance. The big upside is I won’t void a warranty, but tuning will. Let me get the car, do the basic mods, then I will probably consider a tune and a cam.
Melting Slicks
Joined: Aug 2022
Posts: 2,784
Likes: 3,566
Nobody is really paying that much for that little. They get the tune because the have an upgrade path planned out and once unlocked, they can tune it over and over as they add modifications. I don't think we are going to see the real value of tuning until the cam and head cars start getting built. A mild cam that can let this engine breathe right up to a 6500rpm power peak with a fuel cut at 7000 would be awesome on this platform. If we can't change the damn gears, maybe we can at least raise the redline.
Race Director
Joined: Jan 2014
Posts: 10,709
Likes: 7,100
From: Fulshear, TX
Melting Slicks
Joined: Aug 2022
Posts: 2,784
Likes: 3,566
Jet-Hot is absolutely a thermal coating. It drastically reduces underhood temperatures when applied to exhaust manifolds/headers, etc. You can take a normal drive and sometimes touch a header coated with it whereas a plain mild steel header would absolutely burn you. I'm not saying you'd want to keep your hand there for a ten count but it's not hot to the point that your reflexes kick in and you jerk your hand away. Swain Tech White Ligtning is good stuff as well and probably does outperform Jet-Hot but at a price point much higher. Once intent is met and the header is coated sufficiently to keep it from ruining anything around it, you've reached that point of diminishing returns as far as coating performance.
Instructor
Joined: May 2012
Posts: 225
Likes: 19
From: Reading, Pa
