![]() ![]() ![]() This is referred to as 'chipping' a car and embodies what you were referring to as far as making sure the map doesn't run lean or rich. First, they're designed for emissions, then longevity, then fuel economy, then finally power.(Remember that the Hellcat made almost 850 hp but had to be detuned for emissions.) So by retweaking variables you can get more power at the expense of one of the other characteristics. Now the average stock ECU map isn't necessarily designed for maximum power. ![]() So they sit down with an engine, at some level of modification or stock, and rework all the ECU parameters to get the most power out of it. There are essentially three different levels of engine modifications and you've alluded to some of them.Įngine tuners/calibrators pretty much only change the inputs to the engine. So I'm going to focus on those that work with production engines or production derived engines. First, as others have pointed out, F1 engines and companies like NRE aren't really analogous because F1 is designing a bespoke custom engine while NRE is heavily modifying a factory block. I can talk a little about an engine build and what might make an engine good or great. Just drop any old question about engines and if I have time you'll probably be treated to a similarly long-winded explanation. If anyone wants to join me over there we can get some rollicking discussions going. I put out some reading suggestions further down in this thread if anyone wants to flip through a textbook about it.įurther, there's this little subreddit called r/sucksquishbangblow that's specifically for this kind of discussion about engineering of engines. I'm an engineer in the engine industry and I work day to day at a company that operates on the same level as NRE, though in a different market.Įdit 2: So a lot of people seem to be having a really good time with this engine theory and physics stuff. What would they do differently?Įdit 1: I realized a source wouldn't be a bad thing. ![]() If you took the same engine components and gave them to joes speed shop and an F1 team. What I'm asking is, what about their build process is different from a common engine builder? Obviously they're building different engines for different applications. I'm just using those as examples of top level engine builders. I'm not asking what the applications are for a nelson racing engine vs F1. I can't believe it's just money and access to resources.ĮDITThere seems to be some serious confusion about my question. But I'm just trying to get an idea of what is separating F1 engine builders, Nelson racing and the speed shop down the road. Now obviously they're doing something different and obviously we don't know exactly what they're doing otherwise everyone would be building world class engines. So if everyone is suppose to be building the same way, what are TOP engine builders doing differently? I see tons of articles online about how to build an engine, blue print and balance it and all the details seem nailed down without much dispute about the correct way to build an engine. Will my husband divorce me if I dehydrate tomatoes in his F-150 truck?ĭennis Collins, a Highway Accident Investigator at the National Transportation Safety Board The wonderful and epic tale of Yoshi the Yarisįorget the trunk monkey, check out trash pandas. Trying to identify a car? Try /r/whatisthiscar, /r/namethatcar, or /r/rbi.įor information on content removal, user warnings, and bans, please see the Chain of Action page. Create a text post that includes the link and your thoughts on the subject matter.ħ: Users will need to participate in threads created by others in /r/cars before being able to make their own threads. -Basics of swapping engines/layouts/transmissions/bodiesĢ: All car purchase questions must go in the weekly car choosing sticky.ģ: Direct image and video links are not allowed.One Million subscribers! WooHoo! Autos Network Subreddit List Follow us > /r/Cars Wiki However, we encourage you to explore other online platforms. We try to be a helpful discussion-driven community while maintaining high-quality discourse and topical content. We're Reddit's central hub for vehicle-related discussion, industry news, reviews, projects, DIY guides, advice, stories, and more. r/Cars is the largest automotive enthusiast community on the Internet. ![]()
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