05-06-2011, 01:40 PM
Hey guys, im a little new to all this, but i would like to try to build a bi-fuel motor that could create a different compression ratio for the different fuels, i want to adjust from probably around 9:1 all the way up to at least 13:1 and maybe higher. the idea just kind of fell on me and i thought i could do it by having a turbo with a multi position waste gate/ blow off valve, so that when i am running 130 octane the turbo will build up more psi and up my compression? and also be able to run pump gas on the lower compression, but when i studied what makes a compression ratio my idea doesnt seem to have any effect on the actual ratio, but would the extra psi do the trick? and i also dont know how many psi it would take to make the effect. would the turbo have to be ridiculously huge? oh and i wouldnt need all the ratios in between, just to be able to choose between 2.