c00lduke

I was wondering what everyone thought about using hight compression rotors in an FD motor. I've been reading through some things and have heard people switching to higher compression rotor and had good things to say. I was wondering what some of the downside were and what some of your guys opinions are?



Thanks

~luke

j9fd3s

downside is its gonna detonate sooner, so you have to know wtf you're doing.



other than that it seems all good, i wanna try it sometime

treceb

for detonation we can get those nifty trailplugs and it all shall be good, no??

j9fd3s

or really cold trailings

BigTurbo74

i would really like to have a reference thread on this topic in the faq section because this comes up sorta often. only thing is, not many people have much experience with this type of engine building.

twstdmtl

In an FD I don't know but Paul Yaw is supercharging an RX-8 with stock 10:1 compression ratio rotors. I don't know how far along he is though... Check him out.

twstdmtl

Since we are talking about this again...



I have seen lots of utilities on the web for windows where you plug in literage, compression ratio, pounds of boost = HP. However, are they any such utilities for this topic? Pounds of boost, compression ratio = use this octane of fuel... There has to be an equation somewhere or at least some hard experience where some one says "I ran 9.4:1 rotors at 10 PSI, and I needed 120 octane fuel to not detonate." I know there are way more factors than that but maybe there is such an equation floating around.