i was wondering whats the best CR where the JUN type 3's make the most power?? i heard there best for around 12.5:1-13:1 and im stuck between a set of 84.5mm 11.8:1 WISECO piston and some 85mm 12.5:1 ENDYN roller wave pistons.....by the way its for a 2.0L GSR

 

what fuel are you going to run it on? i would probably go with the rollerwaves

 

Just to give you an example. My wife's car made 205 whp and 135 wtq on a bone stock gsr block with about 100k+ miles on it.

The more cr will give you a little more power, but you will have to run race gas for anything over 12:1 cr.

 

Many of us run 12.1-12.5CR on 93 Octane (including myself) so race gas is really only needed if you intend to circuit the car. For Jun 3's we've found that 11.8-12.5:1 is the ideal compression to use for those cams, though they are geared more for peak power than a great powerband like the TODA or Skunk Tuner 2 series.

It depends on what you're planning on doing with the car. I like my Jun 3s, but considering we're using 12.3:1 w/ a B20 Crank, Rods, and ENDYN Pistons, I'd like the TODA Bs more. If I didn't have a spare set of the TODA, I would use Skunk 2 Tuner 2 or Pro 1 series for that compression.

 

well i was planning on running at least 100 octane but i think the 11:8.1 pistons would be good enough because i put flat valves and milled my head a little so it should bump up my compression a little more so i think my cams will be happy will that