![]() 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. So the figures that I gave you would be the engines characteristic VE curve./r/Cars is the largest automotive enthusiast community on the Internet. Any boost that you add, will just be automatically included in the map set up. Although the efficiency may be from the plenum where I take my air pressure reading to the cylinder instead of the entire motor.Ĭhuck if they only enter the VE to 150%, then I would think that they only want the engines VE characteristics, to tailor the maps to the way the engine breathes through the rev range. In order to convert from rpm to mass air flow rate, volumetric efficiency will be an important part of the equation. The electromotive software does not use an MAF, and calculates mass air flow rate by knowing the pressure, temperature, and rpm of the motor. I did not think I would need it either, but now that I think of it, it makes sense. The reason I need it is that electromotive uses volumetric efficiency as a tuning table. VE will be different for every kind of intake exhaust application. The MAF will give you air flow values but exactly how do you wish to relate these to VE as such? forced induction and by what means, or normally aspirated. There are many factors involved and each would require a finite value and the allocation of these values in accordance with the application i.e. Could you please detail as to how the VE was calculated by Harvey. So this is something I would need to consider as the car modified even further.Īny thoughts on how to best log data from the MAF? In fact I think that these values will certainly change even after an intercooler is added, and if any exhaust modifications are made. I think that the best way to calculate VE would be to tap into the MAF and log some real data to help narrow down these values. After getting into this more, I am thinking that the volumetric efficiency calculated by Harvey might not be applicable for a turbo charged or supercharged application, since there are significant pressure drops and drops in efficiency in a FI engine than an NA engine. I have been corresponding with Harvey regarding setting up a volumetric efficiency graph for tuning the SVX.
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