What kind of power do lightened rotors and ported block give.

 

here you go

 

Lightened rotors, on their own, don't add HP. They allow the engine to spin at a higher RPM and are easier on the engine.
As for porting, BHR has been working on engines for naturally aspirated cars. BDC has been working on porting for turboed cars. Start searching this forum and Aftermarket Performance Modifications for information regarding porting. Even after all this time, little experimentation, for the Renesis, has been done in this area. So, just stating numbers is really not possible.

 

I have been to BDC's shop and seen his artistry firsthand. His work applies to both NA and FI engines and I recommend him for Renesis porting without hesitation.

http://bdc.cyberosity.com/main.php?g2_itemId=14478

 

The majority of porting I have heard of seem to concentrate around enlarging the exhaust port.

Is a third port possible/

 

There's really not tons that can be done on the exhaust port. Too many things to be concerned with seal and spring wise. Not to mention the whole 90*, right-angle turn crap in that port to begin with...

B

 

Since we on the subject of porting where are the dyno graphs of how much power can be had with the porting? I couldnt find any.

 

everybody is waiting for you to get a pro build using them and posting up the results

I believe Brian @ BDC has a set ready to go ....

 

best and most insightful post in at least a year. ok, i am not sure, been gone for a while..

beers