I have to disagree. I have 92 pump fuel in Washington. With an E-18 mix, in my 2.0L engine, my 0-60, 1/8 mile and 1/4 mile numbers dropped. They also dropped even more with a race fuel mix of 94.6 octane. I just ran a 4.17 0-60 and a 8.01 1/8 mile two nights ago. I also am running the 1/4 in the 12.5s and with the E-85 mix had a hero run in the 12.4s.Why would you want to use octane boost? Since you have 91 octane fuel, your car is already operating at top efficency, and adding octane will not increase power or performance without an aftermarket tune that supports higher octane fuel. Octane is not a measure of power in a fuel, but rather a measure of resistance to detonation.
I use a bottle of Techron fuel system cleaner every 5,000 miles and prefer Top Tier has stations.
Further disclaimer: He has the fastest 2.0 on the planet - good job. That's faster than most stock QVs can get on street tires.I have to disagree. I have 92 pump fuel in Washington. With an E-18 mix, in my 2.0L engine, my 0-60, 1/8 mile and 1/4 mile numbers dropped. They also dropped even more with a race fuel mix of 94.6 octane. I just ran a 4.17 0-60 and a 8.01 1/8 mile two nights ago. I also am running the 1/4 in the 12.5s and with the E-85 mix had a hero run in the 12.4s. Now, full disclosure, I AM running a piggyback tune, but on straight 92, I’m getting 4.7s, 8.3s and 12.8s with the tune. You may say there is no benefit of fuel over 91, but you’re just a guy in the internet like me, and do not tune or build these engines in Italy. If you look on the threads here, you see major performancedifferences between those running 91 and 93 pump gas. Until Alfa tells us what octane these engines are designed for, we will never know. Stating they “recommend” 91 doesn’t mean that’s the limit. It’s the suggested minimum.
“...full disclosure, I AM running a piggyback tune, but...”
At this point, everything else you say is pointless as you are not running a stock 2.0. Apples and Oranges and all, you cannot infer anything from your data.
Not true at all. It is not “pointless” what’s pointless is you saying 91 octane is the maximum octane the engine can take advantage of since the manual RECOMMENDS it. NO WHERE does it say it’s the highest it can adjust for.“...full disclosure, I AM running a piggyback tune, but...”
At this point, everything else you say is pointless as you are not running a stock 2.0. Apples and Oranges and all, you cannot infer anything from your data.
im not shitting in your Wheaties by no means. I think you have great runs and success with what you are doing. I do wonder what that piggyback is doing long term. It could be running very lean. Not saying it is but my first thought when I seen how much faster it is than the common piggybacks is what’s happening with fuel trims. I’m not saying I’m right. Just my first instinct. Maybe the TMC has figured out how to maximize the multi-air. Just keep an eye out.Not true at all. It is not “pointless” what’s pointless is you saying 91 octane is the maximum octane the engine can take advantage of since the manual RECOMMENDS it. NO WHERE does it say it’s the highest it can adjust for.
Also a piggy back tune doesn’t change the ECU like a flash tune, which why I specified that it was a piggyback. The piggyback only tells the system to use more boost.
FYI, results speak louder than some made up limits due to ones poor reading comprehension.
You're tuned. Different ballgame altogether. Even stock QV and 2.0l calibration style may be done by different calibrators too and far different. Who knows. The only way to know is to log.I think the argument over octane comes down to one simple answer. A tuned or piggyback car will benefit from higher octane. A stock one won’t. The compression will not change on a stock engine. Now you might not see much after 93/94 on a piggyback but on a tune with a little sauce on it you can pull some timing. My fastest times are on 100 octane. 260gt. When I add boostane or octanium I only see minor gains since it’s not oxygenated and loaded with MMT. I do see some gains from octane boosters but I feel the ECU starts to compensate on that sooner than it does the pure 100. For me 100 octane works well.
Its not any faster than other piggy backs. Its quicker because of awd but not faster in trap or 40-100. We're all about the same 310 to 330hp or so trapping 104 to 107mph depending on weather.im not shitting in your Wheaties by no means. I think you have great runs and success with what you are doing. I do wonder what that piggyback is doing long term. It could be running very lean. Not saying it is but my first thought when I seen how much faster it is than the common piggybacks is what’s happening with fuel trims. I’m not saying I’m right. Just my first instinct. Maybe the TMC has figured out how to maximize the multi-air. Just keep an eye out.
Yes. Quicker and faster are two different things. I’m just saying his 0-60 and 1/8 times are a few tenths faster than what we have seen. I think his car is benefiting from the fuel in some capacity. Maybe a little timing. Maybe he is always with wind to back. Idk Yes he is awd. But I think he is almost .3 faster to 60 than the other awd running madness. It’s possible he has a one off car that makes 15-20 more hp. Maybe he got a press car lol.Its not any faster than other piggy backs. Its quicker because of awd but not faster in trap or 40-100. We're all about the same 310 to 330hp or so trapping 104 to 107mph depending on weather.
I appreciate it. I run it pretty tame most of the time. I only juice it up and run it hard every now and then weather permitting.im not shitting in your Wheaties by no means. I think you have great runs and success with what you are doing. I do wonder what that piggyback is doing long term. It could be running very lean. Not saying it is but my first thought when I seen how much faster it is than the common piggybacks is what’s happening with fuel trims. I’m not saying I’m right. Just my first instinct. Maybe the TMC has figured out how to maximize the multi-air. Just keep an eye out.
The AWD is also extra weight, so that is a detriment in the 1/4 mile and a net positive for the 0-60. Also that sunroof isn’t helping either. 😉👍Its not any faster than other piggy backs. Its quicker because of awd but not faster in trap or 40-100. We're all about the same 310 to 330hp or so trapping 104 to 107mph depending on weather.
Tuned is 100% different ballgame. I will have some good logs and data by end of month. Will have videos of the journey she’s going through. I’m probably going to find out the limits of the QV and hopefully she makes it. New turbos. Dyno tuned WMI. I’m also going to top speed run at Johnny bohmer. I’m guessing 204mph. We shall see.You're tuned. Different ballgame altogether. Even stock QV and 2.0l calibration style may be done by different calibrators too and far different. Who knows. The only way to know is to log.
If you log ecu and you're pulling timing. You can benefit.
I think it’s safe to say, we’re all in agreement that the “91 octane is the maximum effective octane gas” argument is asinine.Its not any faster than other piggy backs. Its quicker because of awd but not faster in trap or 40-100. We're all about the same 310 to 330hp or so trapping 104 to 107mph depending on weather.
Damn looking forward to it and to see those wmi numbers! 👍Tuned is 100% different ballgame. I will have some good logs and data by end of month. Will have videos of the journey she’s going through. I’m probably going to find out the limits of the QV and hopefully she makes it. New turbos. Dyno tuned WMI. I’m also going to top speed run at Johnny bohmer. I’m guessing 204mph. We shall see.
im excited. Counting the days lol. I’m hoping to be around 630-640 whp. But who knows. Turbos should add 40 whp each. WMI should add maybe 25-35 whp. But more important will lower IATs. It’s gonna be a tire fire for sure. I’m already spinning with less power. Hope all goes well. After this I’m done with it.Damn looking forward to it and to see those wmi numbers! 👍
He's not making 15 to 20 more hp than everyone. Hes making 15-20 more than some and 5hp less than others Trap speeds are hp. 60-130 is hp. Gains in trap speed from the 1/8 to the 1/4 is hp as thats how fast the car is accelerating in the back half.Yes. Quicker and faster are two different things. I’m just saying his 0-60 and 1/8 times are a few tenths faster than what we have seen. I think his car is benefiting from the fuel in some capacity. Maybe a little timing. Maybe he is always with wind to back. Idk Yes he is awd. But I think he is almost .3 faster to 60 than the other awd running madness. It’s possible he has a one off car that makes 15-20 more hp. Maybe he got a press car lol.