cool when u get ur car running please let us know how 93 octane works. are u gonna get the car dynoed? also how much was the install? thanxblueTRD said:don't forget it needs to be unleaded. I have the said pistons but my car is not running yet. It is supposed to be ready today (latest end of this week). I will post an update after it is run-in (1000 km later).
Compression ratio and fuel grade is related, however cams profile also will affect the use of lower grade fuel.Tung said:But isn't the Prius has the 13:1 ratio, too?
I mean if the Prius can use 91-93 octane, then would it be possible to use 93 octane with the TRD piston in our engine?
Interesting .. At leats there`s a guy who has the balls to try it w/ street gas ..blueTRD said:update on my car. FInally got it back. Surprise surprise, the 13:1 compression pistons can run on 91 octane gas without a problem. Cos I had 1/2 tank of 91 left and I drove it for a few min (about 10) without any knocking (well we have a knocking sensor). I did not rev it up above 5000rpm as advised by WAR but really there's no problems (yet)! I've already added another 1/2 tank of 94 and will run solely on 94 once I've broken in the engine.
THe car feels more powerful and throaty after the pistons, but it could also be due to the p & p done to the head, dc sports header, injen cai, and straight pipe. I speculate that it's gonna be much more powerful in the high revs