I'm sorry for those who don't really want to get into this, but for those that do, here goes with my 'vague description from what little I remember from a previous life'! And please bear in mind that I'm not at all positive of the exact numbers any more, so I hope you'll excuse me if I get them a bit wrong or a/about.īut. Assuming the factory has it tuned for optimum combination of fuel efficiency and clean burning of the fuel, something in the equation has to change, doesn't it? THAT's where you're mistaken!! Your Spyder's engine may have been designed to run at the optimum of fuel efficiency & clean burn, but that's not how they leave the factory! It just seems to me there must be some downside to tuning an engine for peak performance. The source of both heat energy and explosive energy is the same - the fuel being burned. So like Mike says, maybe " If you drove around ONLY in first gear at Maximum revs." &/or you thrash the crap out of it all the time but otherwise, an ECU Upgrade should actually help REDUCE the engine operating temps a tad, especially if you also toss that dirty great anchor of a 'heat generating' catalytic converter too - certainly did with mine! Fitting a Cat Eliminator was a great first step, but the ECU Upgrade was the thing that really pulled it all together, dropped the operating temps noticeably, & converted my Spyder into the really exciting to ryde machine that it should have been from the set to!įor both of you, then how exactly does remapping the ECU produce all that extra power from the same amount of fuel? I've seen that most riders have claimed the same or better mpg after 'tuning'. at which stage things are then going to get pretty cold pretty quickly! I've been reading up on the topic here and elsewhere but I can't find where this issue is addressed.For any engine, more fuel burnt pretty much means more power, so that part's correct and for diesel powered engines, more fuel injected DOES mean more heat generated but for petrol engines, it's the other way around! More fuel injected into a petrol powered engine actually reduces the amount of heat generated during the combustion cycle while running them leaner increases the temp & heat produced - and since they leave the factory de-tuned & set up to run marginally lean to start with, increasing the amount of fuel injected generally means they'll run a tad cooler!īut as with so many things, the temp changed involved for petrol powered engines is really not all that massive, and there IS a point of diminishing returns either way - cos if you don't inject ENOUGH FUEL, then the combustion cycle won't occur to start with, so things will stay cold and on the other extreme, if you inject TOO MUCH fuel into the cylinder, there's not going to be enough oxygen to properly sustain the combustion cycle so the engine will falter until the fuel simply floods the cylinder & stops the engine. This may be a moronic question, but I'll ask it anyway does increasing the horsepower 25% or so increase the amount of heat generated by the engine? It seems to me it would.
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |