Originally Posted by huntnfish08
Can these engines use higher octane fuel for increases power? What does 100 octane do to these motors? Blow them up from knock? I'm guessing that the octane boost doesn't do much for a naturally aspirated motor?
Has anyone tried either alcohol or water injection? Here's a link if someone can relate their experience or expertise to the subject. H20 injection can produce more HP at cooler temps and increase fuel mileage, believe it or not!
Mother Earth Alcohol Fuel: Ron Novak's Do-It-Yourself Water Injection System
Homemade Water Injection Page
This is a great site. I had to sign up as soon as I found it. Thanks for any info,
Higher octane actually reduces knock, so no, it wouldn't blow up. With a higher octane fuel you could run a much higher cylinder compression to increase performance.
As for water/alcohol injection, again they'd really only be useful if you were running higher cylinder compression to take advantage. Without that, I don't see them making any significant difference.