Rotary Engine Building, Porting & Swaps All you could ever want to know about rebuilding and porting your rotary engine! Discussions also on Water, Alcohol, Etc. Injection

RX8 timing info...

Thread Tools
 
Search this Thread
 
Old 09-21-2006, 01:08 PM
  #1  
Senior Member
Thread Starter
 
j9fd3s's Avatar
 
Join Date: May 2002
Location: California
Posts: 22,465
Default

the obd2 stuff is neat, so we went and road tested an rx8 for the recall.



the leading timing @wot over 7000 is 30btdc....



decel and idle its -5btdc



cruising it goes really quickly to around 36btdc, around 2500 rpms... although if you move the pedal it retards real quickly
j9fd3s is offline  
Old 09-21-2006, 01:16 PM
  #2  
Senior Member
 
C. Ludwig's Avatar
 
Join Date: Oct 2003
Posts: 352
Default

Interesting.



What's the split do?
C. Ludwig is offline  
Old 09-21-2006, 02:07 PM
  #3  
Senior Member
Thread Starter
 
j9fd3s's Avatar
 
Join Date: May 2002
Location: California
Posts: 22,465
Default

i dunno, we've got another one to drive, so i think we'll graph a run, and then get a printout.



i'm thinking i'll just do a 3rd gear run from 1000-8500 or whatever
j9fd3s is offline  
Old 09-21-2006, 06:16 PM
  #4  
Senior Member
Thread Starter
 
j9fd3s's Avatar
 
Join Date: May 2002
Location: California
Posts: 22,465
Default

TRAILING runs about 10btdc@idle, drops negative on throttle, and then climbs to about 15btdc @wot
j9fd3s is offline  
Old 09-21-2006, 08:47 PM
  #5  
Senior Member
 
heretic's Avatar
 
Join Date: Jun 2004
Posts: 524
Default

Originally Posted by j9fd3s' post='838001' date='Sep 21 2006, 03:16 PM

TRAILING runs about 10btdc@idle, drops negative on throttle, and then climbs to about 15btdc @wot


I would like to clarify that those are absolute numbers and that you did not mean split instead of btdc.



Otherwise, they'd be running 15 degrees negative split at idle... !
heretic is offline  
Old 09-21-2006, 11:47 PM
  #6  
Senior Member
Thread Starter
 
j9fd3s's Avatar
 
Join Date: May 2002
Location: California
Posts: 22,465
Default

Originally Posted by heretic' post='838028' date='Sep 21 2006, 06:47 PM

I would like to clarify that those are absolute numbers and that you did not mean split instead of btdc.



Otherwise, they'd be running 15 degrees negative split at idle... !


it says btdc....
j9fd3s is offline  
Old 09-22-2006, 12:50 AM
  #7  
Senior Member
 
C. Ludwig's Avatar
 
Join Date: Oct 2003
Posts: 352
Default

Originally Posted by j9fd3s' post='838056' date='Sep 22 2006, 12:47 AM

it says btdc....


I'm REALLY drunk right now and I understood.
C. Ludwig is offline  
Old 09-22-2006, 12:50 AM
  #8  
Senior Member
 
C. Ludwig's Avatar
 
Join Date: Oct 2003
Posts: 352
Default

That's a lot of split for an NA. hmmmm....
C. Ludwig is offline  
Old 09-22-2006, 12:55 AM
  #9  
Senior Member
Thread Starter
 
j9fd3s's Avatar
 
Join Date: May 2002
Location: California
Posts: 22,465
Default

it was 2 different cars, on 2 different runs. i'd like to get screen shots, we can do it, but jack knows
j9fd3s is offline  
Old 10-14-2006, 07:28 PM
  #10  
Senior Member
 
j200pruf's Avatar
 
Join Date: Aug 2003
Location: Portland Oregon
Posts: 448
Default

Yeah those graphs would be really interesting to see. Just out of curisosity would the renesis have different timing needs than the older 13b's do the different porting?
j200pruf is offline  


Quick Reply: RX8 timing info...



All times are GMT -5. The time now is 04:09 PM.