Timing curves please
Thread Starter
Melting Slicks
Joined: Mar 2002
Posts: 2,931
Likes: 2
From: Tx
Timing curves please
I'm trying to get mine right (it seems way off now) and would be interested to hear what other FI guys are running. I think the numbers at peak tq and redline would be the most useful info, but a complete graph from a dyno pull would be ideal.
Here is a graph from my last dyno pull.
http://home.austin.rr.com/quicksilver2002/dyno2.jpg
It appears I was trying to run over 18* degrees in the critical range(still a little confused about this because my tables say I should have been commanding a bit less, I'm going to lower the base spark in drive table and see if that is the culprit). I think I’m going to shoot for 16 at peek tq, but I'm not sure how high I should go in the 5.5 - 6k range, once tq begins to drop off. BTW, the car is running very rich in the above graph (around 11.7 on the dyno). I’ll probably need to get that in range before I finalize my timing curve.
Changing the fuel pump and putting the bigger pulley on really screwed with my a/f.
Please post with any info you have.
[Modified by QuickSilver2002, 6:05 AM 12/25/2002]
Here is a graph from my last dyno pull.
http://home.austin.rr.com/quicksilver2002/dyno2.jpg
It appears I was trying to run over 18* degrees in the critical range(still a little confused about this because my tables say I should have been commanding a bit less, I'm going to lower the base spark in drive table and see if that is the culprit). I think I’m going to shoot for 16 at peek tq, but I'm not sure how high I should go in the 5.5 - 6k range, once tq begins to drop off. BTW, the car is running very rich in the above graph (around 11.7 on the dyno). I’ll probably need to get that in range before I finalize my timing curve.
Changing the fuel pump and putting the bigger pulley on really screwed with my a/f.
Please post with any info you have.
[Modified by QuickSilver2002, 6:05 AM 12/25/2002]
