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Has anyone found a no-tune camshaft that works? I'm about 90% sure the physical architecture of the camshaft is the same as a C7. I have CNC ported heads, headers, etc. for my C8 and would like to put a baby cam in it while the motor is out. I'm just wondering if any C8 owners have found one. Maybe they had done it previously on a C7?
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Has anyone found a no-tune camshaft that works? I'm about 90% sure the physical architecture of the camshaft is the same as a C7. I have CNC ported heads, headers, etc. for my C8 and would like to put a baby cam in it while the motor is out. I'm just wondering if any C8 owners have found one. Maybe they had done it previously on a C7?
Isn’t one the points of a cam to raise the RPM and power? Without tuning, you can’t raise the redline or fuel cutoff. I don’t see the point. If not RPM range, no tune will likely be needed. They have Turbo systems with no tune getting 700 HP. The wind band O2 sensors and closed loop all the time except start up and limp home.
Has anyone found a no-tune camshaft that works? I'm about 90% sure the physical architecture of the camshaft is the same as a C7. I have CNC ported heads, headers, etc. for my C8 and would like to put a baby cam in it while the motor is out. I'm just wondering if any C8 owners have found one. Maybe they had done it previously on a C7?
Now that Trifecta has cracked the ECU, what would be the advantage of a no-tune Cam? Seems like you get the one you want have a tune set-up for it.... Or am I missing something?
Now that Trifecta has cracked the ECU, what would be the advantage of a no-tune Cam? Seems like you get the one you want have a tune set-up for it.... Or am I missing something?
Just that its new to the industry. They don't have pricing or availability yet & Andy had not heard the new news.
Nobody actually knows what Trifecta's capabilities are or will be. Tuning for a cam in the Gen 5 engines requires access to various torque tables. Just turning off the AFM and raising the idle speed isn't going to cut it.
I had a 2014, a 2015, a 2016, and a 2017. They all had forged pistons, cams, and, of course, one of my supercharger systems. To me, this car.is just too slow. I'm anxious to get the motor out and install what I have.
If this tuning actually works out, I have no problem pulling the motor back out to swap the cam again.
The stock cam is 205- 221 with a 221.5 LSA. I was mistaken about what we are going to do. Cam Motion told me they had done a 217- 233 but did not know how it ran.
We are adding 10 degrees. It will be 215 - 231 with the same LSA. The lift will be close to the same and we are retaining AFM and stock VVT. They have tested this cam and it made around 30 HP over the stock cam, with stock heads. (The cam should definitely make more of a difference with ported heads). This was on a car with the standard mods such as ported manifold and TB, headers, air filter, etc. It was just a tad slower out of the hole but it pulled away pretty quickly after that. They milled the heads and then it was faster than a similarly modded car everywhere.
My ported heads are already milled.030".
So if I added up all the "advertised" horsepower for all these mods, I should be making well over 600 HP.
Last edited by Andy@A&ACorvette; May 24, 2022 at 09:25 AM.
The stock cam is 205- 221 with a 221.5 LSA. I was mistaken about what we are going to do. I was told They had done a 217- 233 but did not know how it ran.
We are adding 10 degrees. It will be 215 - 231 with the same LSA. The lift will be close to the same and we are retaining AFM and stock VVT. THEY have tested this cam and it made around 30 HP over the stock cam, with stock heads. (The cam should definitely make more of a difference with ported heads). This was ON A CAR with the standard mods such as ported manifold and TB, headers, air filter, etc. It was just a tad slower out of the hole but it pulled away pretty quickly after that. They milled the heads and then it was faster than a similarly modded car everywhere.
My ported heads are already milled.030".
So if I added up all the "advertised" horsepower for all these mods, I should be making well over 600 HP.
Who's they and to be clear when you say ''on a car'', was this a C8?
With a hotter cam, I would have expected peak horsepower to shift to a higher rpm. Given the stock cam already peaks just shy of the Rev limit, will you even reach the peak by the time the rev limiter kicks in?
^^^ It nominally peaks at 6300, but if you look at a graph, by 5200 rpm its within about 25 HP of peak power and by 5800 rpm its only about 5 HP below peak. Really it's more like a 5800 - 6000 rpm peak and the extra exhaust duration (compared to the LT1) allows it carry the power forward to redline. The C8 gains only 25 HP over an 1,100 rpm range up top so torque is really dropping on the top end. That is a big reason why the car feels like it is starting to fall on its face in 4th gear after 100 mph.
There's plenty of room to shift that to the right and gain significant area under the curve above 5000 rpm even if HP peaked at 6600. 10* extra duration normally wouldn't move the peak more than say 300 - 400 rpm, but it's hard to know exactly how porting the heads will interact with the cam.
I'm just waiting on Cam Motion to get me my cam. We have to use a stock cam core to start with, which they say is back-ordered for another week or two. The West Coast Cylinder Heads CNC ported heads, LPE Carbon intake manifold, and Ceramic Coated ARH headers are all sitting in my office.
The timing may not be the best as Melissa and I are going to Norway, Sweden, and Finland for 3 weeks in mid-July for our 34th Anniversary, Jesse can certainly do it while I'm gone, but I actually want to do it myself. I want to spend some time mocking up some supercharger brackets etc. while the motor is out.
Trifecta hasn't cracked anything. They made an insane claim that they have, and then have been radio silent ever since, showing no proof or answering questions about it. I call 100% complete and utter bullshit on their claim.
Originally Posted by Andy@A&ACorvette
To me, this car.is just too slow.
What are you basing that opinion on? People are running mid 10s in this car with mild bolt-on's and 0 tuning. For a 3600lb naturally aspirated car, I'd say that's pretty damn impressive. It runs low 11s bone stock which is what most manual c7 z06 cars run stock.
The only thing I could see you basing this car being too slow off of would be roll racing because that I would agree with. It definitely lacks horsepower on the top end, but that's to be expected from a base model. They can't make the base model too fast when they have 2 or 3 other upgraded versions coming out. It ultimately holds it's own against other cars from a roll though. NA vs NA the c8 will beat camaros, mustangs, challengers, chargers, whatever in an apples to apples race.It's not until you start running it against modded forms of those cars. or other non NA cars that it starts getting beat up.
What are you basing that opinion on? People are running mid 10s in this car with mild bolt-on's and 0 tuning. For a 3600lb naturally aspirated car, I'd say that's pretty damn impressive. It runs low 11s bone stock which is what most manual c7 z06 cars run stock.
The only thing I could see you basing this car being too slow off of would be roll racing because that I would agree with. It definitely lacks horsepower on the top end, but that's to be expected from a base model. They can't make the base model too fast when they have 2 or 3 other upgraded versions coming out. It ultimately holds it's own against other cars from a roll though. NA vs NA the c8 will beat camaros, mustangs, challengers, chargers, whatever in an apples to apples race.It's not until you start running it against modded forms of those cars. or other non NA cars that it starts getting beat up.
Everyone doesn't drag race. I haven't been to the track in over 10 years. I just love fast street cars that can almost scare you at will. Obviously, I own a supercharger manufacturing company and haven't had an NA Corvette in many years. I've owned many C5s and C6s and C7s, including a 2014, a 2015, a 2016, and a 2017.with the lowest HP one being right at 725 RWHP. It's just what I'm used to. Hell, my daily driver is a 2017 BMW X5M that makes about 700 on pump gas and 800 with Methanol (and more boost). It's faster than my C8 for daily street driving. My butt meter says my C8 is slow, that's all I'm basing it on.
with the lowest HP one being right at 725 RWHP. It's just what I'm used to. Hell, my daily driver is a 2017 BMW X5M that makes about 700 on pump gas and 800 with Methanol (and more boost). It's faster than my C8 for daily street driving. My butt meter says my C8 is slow, that's all I'm basing it on.
Well of course the car is going to feel slower when you're used to cars with 200+ more rwhp lol. But just coming out and saying "this car is too slow" sounds pretty ignorant and can easily be a con to someone new who hasn't driven one and is thinking about buying one. The car feels slow to you because you're used to having 700+ rwhp. That doesn't mean the car *is* slow when comparing apples to apples against other stock NA cars.
I've been curious about this as well. In for updates!
No-Tune camshaft?
