Maybe it depends on the exhaust setup on the car, but I personally couldn't tell a difference. Mine is loud af with 93, 94, E85, etc., it makes 0 difference. But I have heard others say it's a bit quieter with a stock exhaust setup. Out of 100s of people, I've never heard of it sounding more aggressive until the post above me. Just try it and see if you have the kit and are tuned for it. But with no mufflers, I would say there is about a 100% chance you will not hear a difference. Show __________________  Hey all, Thanks, Personally, while on E85 both I and my GF had noticed the exhaust tone become more refined yet even maybe a little quieter. I think the tune is why this happens. __________________ Miyuki みゆき "Beautiful Snow" The Whiteout FR-S Originally Posted by KR-S 86 What are you talking about? You just killed one of the worst brands in history according to enthusiasts. People will be worshipping you like sheep. Ethanol does change the tone of the exhaust slightly, yes. Especially when tuned for high levels of ethanol content as a more advanced ignition advance will change the timbre for sure. Because you can typically advance ignition timing using ethanol (depending on how much ethanol you're using), when the DME pulls timing, like during overrun or ALS, it's even more dramatic. However, what you're experiencing is a slight leaning of the Air/Fuel Ratio (AFR) on the overrun and during ALS events, which causes a slightly more dramatic crackle. For the ZCP/GTS guys and also guys running flash tunes with "burble" overruns, having more ethanol has the same effect on overrun as AFRs are slightly leaned during these periods and create more of a crackle and higher-pitched pops. As you increase Fuel Scalars/FCF in the tune to allow a higher mixture of ethanol, you somewhat loose this sound if you aren't running enough ethanol for the tune as AFRs can be slightly richer than target for the overrun. Once you increase ethanol content closer to and above "zero correction", the AFR will start to come in at or above target AFR and you gain some of that extra crackle. Of course, all of this can be tuned using BM3 and there are several factors at play for sound tuning purposes (AFR, timing, EWG) and knowing the correct values for a given tune is key to sound tuning in general. Of these values, ignition timing has a lot to do with this in combination with AFR. Likewise, richening AFR and pulling more timing creates much deeper bangs/gunshots as the fuel ignites deeper into the turbofolds/turbine section and explodes with more energy. You will loose the burble and gain massive pops/bangs and if you go too far, will enter Anti-Lag (ALS) territory. FYI, the DME of the ZCP will pull upwards of -15* timing on the overrun and will target an AFR of about 14.7:1 during the overrun. The ZCP on E40 will see leaned AFR's in the 15-16:1 range on average during the overrun, which in combination with timing being pulled up-to -15*, creates a dramatic effect. The following are the total amount donated by top contributors to each state ballot measure that is pending Secretary of State verification or are still circulating for signatures. These lists reflect contributions as reported by Primarily Formed Committees. Prop #Circulating TitleTop Aggregated Support - $128,853,797* Oppose - $44,439,801 27Allows Online and Mobile Sports Wagering Outside Tribal Lands. Initiative Constitutional Amendment and Statute.Support - $169,111,799 Oppose: $245,811,236* 28Provides Additional Funding for Arts and Music Education in Public Schools. Initiative Statute.Support - $10,714,83029Requires On-Site Licensed Medical Professional at Kidney Dialysis Clinics and Establishes Other State Requirements. Initiative Statute.Oppose - $86,357,62930Provides Funding for Programs to Reduce Air Pollution and Prevent Wildfires by Increasing Tax on Personal Income Over $2 Million. Initiative Statute.Support - $50,262,671 Oppose - $16,421,416 31Referendum On 2020 Law That Would Prohibit the Retail Sale of Certain Flavored Tobacco Products.Support - $47,529,179Oppose - $23,265,396 Total from top contributors: $708,678,020 OfficeCandidate Aggregated Total from top contributors: $6,777,587 How much HP will E85 add?E85 fuel has a faster ignition time and flame propagation when compared to gasoline. This leads to higher cylinder pressure, as well as increased engine torque and power, gaining up to 20%.
What are the disadvantages of using E85?E85 CON'S. It's potentially damaging. E85 is not corrosive in nature, but does attract moisture; and water is bad news for engines. ... . It can be costly to retrofit. Vehicles produced before 1987 are not E85 compatible. ... . Not quite environmentally friendly. ... . Not as efficient. ... . Bad in cold weather.. Is E85 hard on your car?E85 is actually safer for your engine than regular gasoline is. E85 flex fuel not only powers your engine but also cleans your engine, fuel lines, and fuel injectors. That's because E85 contains a high amount of ethanol, up to 83%. Ethanol is an excellent cleaner.
Do cars run better on E85?In fact, E85 is the highest octane fuel on the market. It allows the engine to run more optimally, spark advance, and resist knocking. This extracts more power out of an engine.
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Does e85 make your car louder
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