View Single Post
  #22  
Old 25-01-2018, 10:09 AM
RICE RACING RICE RACING is offline
Senior Member
 
Join Date: Oct 2003
Location: Utopia
Posts: 511
Wink Re: Injection amount vs E85

Quote:
Originally Posted by UCTURBO View Post
I must be reading your graphs wrong but it looks like it starts knocking then pulls 3deg but the knock keeps going up even with the timing pull? How much knock have you seen to actually put aluminium on the porcelain of the spark plugs in a piston engine? Cheers
Yeah you are reading it wrongly, so instantly it takes out timing then it re introduces it after a certain amount of non knocking cycles, then if it knocks again, which it did then it takes out again and it repeats.

Once you do allot of these as I have you can see that once knock starts the engine is 'hot' and it wont really like the introduction of normal levels of timing but each time it varies! so this is why the ECU manages it.

On most cars I do I let the LR take the engine up to its knock limit, its an automatic process and the ECU does a fantastic job of running each chamber to its limit ALL the time
__________________
http://www.riceracing.com.au
RICESP > F40 > Zonda > ZR1
Water Injection Specialist
"Can't be defeated!, don't know the word!, shoulder to shoulder!, we'll fight the world!, WE CAN'T BE BEATEN!!!"
Reply With Quote