Quote:
Originally Posted by nelsmar
1. No they don't. They add resistance that the rods need to push harder to force the exhaust out. Due to this choke point your end up with a chance of ectra exhaust in the cylinder post stroke. (Unless overlap which isn't ideal) this increases cylinder pressure and decreases efficency. Have you ever blown through one of those little party toys that make sounds when you blow hard? Yeah that's not "free". Blowers aren't as inefficient as they used to be. A large turbo gives less back pressure and lower egt and can be easier on the engine but then your spool lacks. People confuse this logic with compressor maps and think larger turbos make more power due to cfm rate.
2. Very true when using a recirculated dump tube. Very wrong when open dump tube. Sbd is recirculated.
3. Incorrect. On a dyno plot this is true in most cases. But transient response time suffers greatly. And a large efficient turbo suffers even more. Not to mention some
Blowed make full boost at sub 2k rpm...
4. Mostly true unles using a wastegates setup. However wastegates setups reduce efficiency.
5. True. But units like the vortech don't require oil and coolant likes this are less likely points of failure.
My supporting reasoning for the above: I have had both a high horsepower vortech setup and I daily drive a forged setup with a maxed out gtx30r. Which did I like more? My vortech. I hate transient lag. Not to mention O have also tuned probably 100+ cars on this platform alone...
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Thanks this is the input I was hoping for! Glad to hear from someone who had owned both a supercharger and turbo on this platform. Especially since the supercharger was the Vortech!