all hail the Holy Piston
Trending Topics
07-19-2003, 02:33 PM
#9
Senior Member
Thread Starter
Join Date: Aug 2000
Posts: 6,193
Likes: 0
Received 0 Likes
on
0 Posts
mine Detonated until i got a lower comp ratio
i know of a few others who have had similar problems.....
in my two years of dealing with this problem it seems the main problem is that the the 91 octane causes a slight amount of ping & that triggers the ECU's defences by adding fuel & retarding timing. because the car is running on such a fine line, the A/F & timing window for the car to run properly is smalller than the ECU is aware of & when it adds fuel & retards timing it causes a downward spiral until the car has no timing & blows black smoke out the tail
in my two years of dealing with this problem it seems the main problem is that the the 91 octane causes a slight amount of ping & that triggers the ECU's defences by adding fuel & retarding timing. because the car is running on such a fine line, the A/F & timing window for the car to run properly is smalller than the ECU is aware of & when it adds fuel & retards timing it causes a downward spiral until the car has no timing & blows black smoke out the tail
07-19-2003, 02:41 PM
#10
Elder Member
Join Date: Sep 2002
Posts: 14,366
Likes: 0
Received 0 Likes
on
0 Posts
Charlies car seemed to ping much more then any of the others.
1-bars car seemed to run great till he had some issues. So he took off the T28 kit and sold it then put a K04 on which still had issues, which ended up being that he had a burt valve and had Dynamic Racing Solutions do a valve job.