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Post by Whistler on Aug 2, 2019 7:01:17 GMT
There is no reason why a turbo'd car might be less reliable than a supercharger. Plenty of owners use their turbo car as their daily drive.
Most modern standalone ECUs will give you improved fuel economy (largely due to the removal of the MAF or AFM) and with a good tune you should be as reliable as any road car. Once your build is complete, you need to find a tuner who knows and likes to work with your ECU and expect to spend at least half a day on a rolling road to get a safe/reliable map.
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Post by atlex on Aug 2, 2019 8:54:35 GMT
also there's the scavenging of the cylinders, which on low boost like you'll have on the highway, I think improves economy. Because the intake is at a higher pressure it pushes the old exhaust gasses through ? something something.
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Post by wannabe on Aug 2, 2019 9:58:26 GMT
also there's the scavenging of the cylinders, which on low boost like you'll have on the highway, I think improves economy. Because the intake is at a higher pressure it pushes the old exhaust gasses through ? something something. Am I correct in thinking that decreased cam overlap (i.e. the valves being closed longer) means the in-cylinder pressure can build higher, which means more air, which means more fuel can be burnt, which means more power? And N/A cars need more overlap (i.e. time with both sets of valves open) in order to help clear the cylinders of spent charge?
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Post by Zed. on Aug 2, 2019 11:18:57 GMT
And N/A cars need more overlap (i.e. time with both sets of valves open) in order to help clear the cylinders of spent charge? something like that BUT once you start to push a turbocharged engine duration can increase (as with everything, many rules & every individual engine is diferent - ie. what works on one engine might not perform as well on another ) iirc, the auto 1.6 exhaust cam has less duration & is similar to that used in the 323GTX (turbo) engine, but once past a mild tune turbo's live happily with more radical profiles (lifts the powerband up the rev-range) Rich.
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Post by schercheeroo on Aug 4, 2019 9:48:48 GMT
also there's the scavenging of the cylinders, which on low boost like you'll have on the highway, I think improves economy. It would on a direct injection engine where no fuel is injected until after the valves are closed. With port fuel injection any scavenging will throw fuel straight down the exhaust which decreases fuel economy.
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Post by wannabe on Aug 5, 2019 9:04:55 GMT
also there's the scavenging of the cylinders, which on low boost like you'll have on the highway, I think improves economy. It would on a direct injection engine where no fuel is injected until after the valves are closed. With port fuel injection any scavenging will throw fuel straight down the exhaust which decreases fuel economy.But pop, bang, FLAMES!
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Post by niklas on Aug 7, 2019 13:52:43 GMT
Bombercounty5 >> over here, the fastest five is a turbo mx5, with something like 4-5s on the fastest mx5 na racecars on some tracks.
That car is very well sorted and built like a racecar though.
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Post by moclan on Mar 20, 2020 7:13:25 GMT
My car is bog standard and it is great fun as it is. I may not be setting the world on fire, but I am still smiling. I don't want to ruin the car. I just want a bit more. So what seemed the most sensible was going the ITB route: very simple with not much to go wrong, no real extra weight added, keeps the character of the car, looks the best, sounds the best (to me). The only downsides I can see are it costs a lot and all other conversions offer more power. But... If I wanted the fastest thing on the road I'd probably be in a tuned up Evo or similar. So sheer speed alone is not everything. (I've owned a tuned Subaru and it was ok at best). How time flys 🤣
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Post by wannabe on Mar 20, 2020 16:27:48 GMT
My car is bog standard and it is great fun as it is. I may not be setting the world on fire, but I am still smiling. I don't want to ruin the car. I just want a bit more. So what seemed the most sensible was going the ITB route: very simple with not much to go wrong, no real extra weight added, keeps the character of the car, looks the best, sounds the best (to me). The only downsides I can see are it costs a lot and all other conversions offer more power. But... If I wanted the fastest thing on the road I'd probably be in a tuned up Evo or similar. So sheer speed alone is not everything. (I've owned a tuned Subaru and it was ok at best). How time flys 🤣 LOL
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