# Turbo 1 Rotor Miata hits the Dyno!

## Метаданные

- **Канал:** Rob Dahm
- **YouTube:** https://www.youtube.com/watch?v=Z2M22JxNe1k
- **Дата:** 30.04.2026
- **Длительность:** 16:40
- **Просмотры:** 210,579
- **Источник:** https://ekstraktznaniy.ru/video/52766

## Описание

The better way to rent, whenever you need a car. ​​Thanks to Turo for sponsoring today's adventure! Head to https://turo.yt.link/jHOY6t2 to rent through @Turo.

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Music: ONYX by Ferco & tubebackr   / fercomusic  
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## Транскрипт

### Segment 1 (00:00 - 05:00) []

That was not good. — What are we doing today? — All right, man. So, yeah, we're here at Westech. — You don't mind a 5-second uh tour? — Um this is a pro street dually um that I got talked into building. — twin turbo thing we ran last week. — This is uh John Buck's Camaro that'll be in Hot Rod at some point. This is the engine dyno. — It's all right, Rob. Richard Holdener. — Oh. — Pleasure to meet you. — man. — Likewise. — When you were driving up and we were we both like somebody's driving up on a single cylinder motorcycle that's definitely like a TT 500 or so. — That must be Rob. — Like oh, that's so awesome. — So, I got logs to look at. We did hit 9,000 RPM and we also got up to 19 lbs of boost briefly at one spot, but those were mostly 10 PSI pulls. It is now time to pass the key on to whoever wants to — Ah, Finn didn't even try. — didn't even try. Yeah. Well, I do this the guys are going to get the car hooked up and I'm going to get just one last take on making the dyno table and pulls as good as possible. — So, with all the traveling coming up, one of the most annoying details to deal with is actually cars, which I love cars. Getting to try different cars, even if they're a little econo boxes. The downside to that is the traditional rental process is not fun. Get out of the airport, you end up waiting for a bus that then has to go to 20 other stops to then go to a station that's 5 miles away to then sit and stand in line. The process of doing traditional rental cars coming from the airport absolutely sucks. That's why I love Turo. Uh of course, I've always loved Turo for just renting unique and random cars and like I rented one to pick my dad up at the airport, had a blast doing that, but more importantly you can now at over 170 airports in the United States and Canada rent from Turo and have a car in either the garage or a parking lot designated for it and just pick up a car and go. On top of that, you don't have a class of vehicles. You can get exactly the vehicle you want. One of the things you want the least when traveling is surprises and uncertainty and just not sure what to do. With Turo, when you rent a vehicle, in the app it tells you exactly where to go, whether it's going to be a parking lot or garage. Don't have to guess. I want to thank Turo for sponsoring today's adventure and Turo is definitely the easier way to rent a car. Either click on the link in description or click on the QR code to rent through Turo today. All right, this is the moment we all have been waiting for. It is finally time to see what the one-rotor turbo can do on the dyno. Stakes are raised a little bit and they're lowered a lot. It's only one rotor. So, we're going to be dynoing in third gear because this dyno is also going to be logging it kind of hard in the fourth gear. That was their recommendation, I agree. Second thing is that we do not have 0 lb of boost. We have boost creep because it's an internal wastegate, meaning that no matter what, wide open wastegate, the turbo gets air, the turbo is going to make boost. So, we're going to see this boost curve do a weird thing like this. Our first couple pulls are going to be figuring out what's that lowest number possible. So, it's going to make more horsepower than a one rotor naturally aspirated because the turbo just can't get out of the way. And then, we're going to go for power. So, my goal is 20 lb to 20 ultimately 28 if the turbo and the fuel and the engine allow us. But, first three pulls are going to be pretty fun cuz uh first one's that little up. All right. Wee. And then, we'll see what she wants at the very minimum. I'm actually more nervous for this than uh any of the other cars cuz that boost creep's got me sketched out a little bit. So cool doing it with a convertible cuz I get to see so much — Yeah, it's a lot easier to communicate and interact. — I'm just going to be like this on the pulls. — Feel free to start it, roll it around, and kind of we can look at the speed up here and get an idea of where you're going to go.

### Segment 2 (05:00 - 10:00) [5:00]

I've already set up the file right now. — Okay, perfect. Here we go. Yeah, well, so we'll start at 3,000 RPM. Okay. You're good to go? — Yeah. That was pretty straightforward. Yeah. That's wide. No, that dyno already reflects a lot of the weird spots cuz I've never been able to do that. just step on the gas and go. I think I saw like 150 all across the board. Like it was like 150 down low, 150 to up high. I did carry it to 7,500 cuz I was curious cuz I saw this was really good. — You said 6K. — Yeah, I know. I lied. I lied. But yeah, getting up into this area also lean partially cuz of the that kick on. All that other tuning work came in handy for this not being lean. But then we've never been up here with that sort of load. Point out these numbers look extremely bad, but it's 0. 83 when I want 0. 8. So, we're not talking about lean at all. — And that's the wastegate wide open? — open. It won't It won't do less. Yeah, I I had a sneaky suspicion. Right here you can see full throttle and you see how the wastegate boost peaks here and drops? That's our peak right there. That's it. That I'm telling you right now, yeah, that's where the turbo's going to come online earlier and peak and drop off. Yeah, so that's uh because we're going to just continue stuffing it. So, this turbo is perfect for a street car. Absolutely perfect. So, okay, so we've got — Already 155. — Yeah, that's sick. 130 ft lbs of torque instantly. I've never seen it come up and be flat across the two numbers kind of cross. — We've seen this guy before. You see how much wider it is? That fuel is getting bypassed. We've never ran an engine with a fuel injector right at the center port. And I guessed the timing, but look at that means to me that the fuel is going past the engine igniting. That's a wild-looking dyno map. I've never seen anything like that, and unfortunately, we don't have back pressure or EGTs because of how small that is, and we just couldn't get to them in time. This is my first time ever doing a wastegate built in. I hit 22 lbs of boost on a 7 lb spring. So, what we're going to do is just say, let's aim for 20 lbs of boost. That way, we're realistic with what we're expecting. What's going to happen is wastegate's going to stay closed earlier, so we'll get more of juicier torque at the bottom end, and it'll still hit 22, maybe a little bit higher as it goes on, but I already have to tune for it. So, might as well expect it and plan for it. Those plugs being white suggests that fuel time is a little different on this. We have an injector pointing straight at the semi-P, and that makes a difference. There is exhaust 100% every pulse coming backwards briefly. It's not that pulse backwards that hurts us. It's the following vacuum that occurs. There's a vacuum that sucks it straight through, and that's burning it right out into the exhaust. Oxygen sensor reads rich. Engine starts getting more lean. So, I'm going to add a little bit more fuel. I'm also going to like change the timing of that spark plug. Since it's throwing it straight in the motor, let's go for a better like peak time. We got bigger injectors to try and get it into a shorter window, and we'll just keep listening to what she has to say, but that was actually kind of mixture of two or three of the runs into one. We're now going to go down into second gear because you see how long that took to do that pull. — Catch can's overflowing. — Oh, really? We have a overflowing catch can, which is not a surprising thing to me right now. All I care about is that first part. The second part smoothing out is also my goal, but you can see she's just alive. The amount of torque down at 4,000 RPM is just so much fun.

### Segment 3 (10:00 - 15:00) [10:00]

You can just hear it come online. There's a lot to look at, but the dyno curve should actually be peaking closer to 6,500, and that's where I got to do some super sleuthing, but yeah, there's there's power to be made. Okay. So, yeah, we're going to be back in the 60s. 60 PSI is to me is more of an aluminum rotor and setup issue, and that blow-by 100% guarantees it. Now, what's Here's what's very interesting. 60 PSI, only one rotor, and it starts almost perfectly other than when I have too much fuel. So, you can tell that there's something working great early on, but there's something not normal about this and that aluminum rotor Don't worry, the guy that made it, don't worry. It's I don't think it's bad. I just think that maybe I have to clearance it differently or whatever, because it's even. 60 61 60. That is the most even rotor I've ever had, but I know deep down in my heart that what what's going on is we're getting so much boost that more so the fuel is going around the oil control rings, and it's ending up in our thing. So, I'm dumping tons of fuel into it, and a lot of that is going into the oil. The cost of you know, pioneering I know for a fact that those rotors can do much higher compression. There's been guys doing 80 dyno pulls with multiple rotors. So, I think it's a clearancing issue. something issue. You can tell that once the forces start really adding up, that's when it it's quite frankly at about 4,000 RPM is that once the boost comes up, we got 20 lbs of boost, and the only thing between those two are side seals and oil control rings. Something's got to give. That does not surprise me at all, given all of our factors. I could drive this thing all day long, we'd be perfectly fine, but making the number that we're looking for, that's not in the cards for today, but we got a torquey monster. And I could continue adding boost earlier and earlier, and the only reason it doesn't come up sooner is because that's the start of the pull. If we had it started like a thousand and then went all the way up, you would see even more low-end torque. I'm very, very happy with this. The car is fun to drive. Now I can stomp on it, but we have half of the power going into the oil out into the catch can. — I didn't know you were going to get on it. — I didn't know that you were going to do it. And then she's out of gas right there. You can smell the fuel. — Yeah. So, as soon as it hits that, blow-by is like crazy. Oh, we should have turned it down, huh? — Yeah, well, I mean, it it's at 20, so it's just boosting earlier in a good way, and then once it gets up to the top end, it does the exact same thing. So, as long as it stay between 3,000 and 5,000 RPM, I've got peak raw manual power. — So, that was not good. We got two people, you can go first. — Oh, yeah, yeah. — I like stomping in this Lowest grade ever. I saw it. I never — that might be an axle. — Yeah, I broke something, but it was so worth it. That was a That was a lot of power. It was doing a burnout or something. So worth it. — We probably — I broke something. It was worth it. Like an axle or something. It still feels pretty solid. — Yeah. — Like you're driving. The dumbest thing we did was did that pull under the bridge. That was the most obnoxious — It disgusting. — It was just like the noise was everywhere. It was hilariously bad. It was like we won, but at what cost?

### Segment 4 (15:00 - 16:00) [15:00]

She's got some nasty torque. As present presented by absolute curb stomping. That's the first time I ever got to lose on purpose. — Okay. — I was screwing with Vin when we were both leaving Friday. We're both in our Insights and I cut him off. Just whatever. It doesn't matter. He took it personally. It was weird. Uh But he decided to swing wide on the highway on ramp and it was the slowest race ever. We're both pedal to metal committed and his car started to walk mine. And I didn't let that go. That's I I won my honor back in the Miata. — Oh my god! We need a new diff. — Oh — That's amazing. That's where it's supposed to fall. — Oh! — That's rotary torque right there, baby. That is what it costs to absolutely cream an Insight. I would pay that price every time. — And we are so thankful that happened at the light before the shop. — And I've raced into Finn before. I would not have had control of the control. your plate There's the plate you guys made. — Yeah. — Saved us. — It's the only thing that's held up. Holding on for dear life. Oh. — I tried to feather it, too, but I saw a little bit of red like getting too close. And I was like, "No. " That's always a good sign when that's not rotary or our own custom work it starts breaking, you know that we're pushing some fun limits. And with one rotor