Quote:
Originally Posted by Calum
Gotta be honest, I find that really hard to believe. A turbo should be noticeably more power, with the same level of tune and octane, when compared to a super charger.
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It's simple physics.
- small turbo, so small it's maxed out, and doesn't actually need a wastegate to run safely
- maxed out turbo = out of efficiency island, vs say, a TVS1320 which is in the meat of its powerband
- known data that on a FA20: Whether JRSC, Edelbrock, or TVS, on 91, they make the same power whether you're seeing 9psi or 12 psi
- to supplement my maxed out turbo, I also run a giant giant Garrett intercooler rated for more than double what I need, complete with ducting
- If you saw my pre-intercooler charge temps, you'd probably shit your pants
- I make no more power going higher than 7psi on a 91 octane map, due to diminishing returns on boost vs iat vs octane, so my 91 map peaks at 7 psi. My 91 map at 7 psi (or 10.5 psi if you want to get technical) makes roughly the same power as a JRSC/Edelbrock/Harrop on their standard pulleys.
You're welcome to extrapolate my power using videos.