Help me tune my car AFR and Spark

[hotstang_46]

So I'm going to do some data logging first thing in the morning with the sniper stuff. I installed a base tune but it's still falling flat on it's face.

with the sniper stuff I have the ability to tune globally and in 3 rpm specific categories at WOT only.... 500-2500rpm, 2500-4000, and 4000-redline.

I also have those same parameters for spark modification....


when I'm out there, I know I should be shooting for 12.5-13 AFR at wide open throttle, but what about partial throttle? What should I shoot for on the timing aspect as well, both part and wot?

thanks.....

 

[hotstang_46]

little help?:damnit:

 

[Tim2002GT]

There aren't a lot of people on here that use the Sniper interface. There is a guy on here that deals with them. If you do a search for the sniper tuner, you should be able to find him and he can probably help you.

Good luck!

Edit: found him...http://forums.stangnet.com/member.php?u=57450

 

[hotstang_46]

It's not really sniper specific though.....those who have tuned cars or done their own via the sct pro racer would be going through the same thing.

 

[the98stang]

I just used the base tune for the lower RPM's. It's WOT and high load that you want to concentrate on. Make 2 or 3 pulls in 3rd get from 3000 rpm to redline. Log the load, maf ad counts, spark, rpm, etc. Then just calibrate the MAF and try to make a flat curve.

 

[DBMSTNG]

So I'm going to do some data logging first thing in the morning with the sniper stuff. I installed a base tune but it's still falling flat on it's face.

with the sniper stuff I have the ability to tune globally and in 3 rpm specific categories at WOT only.... 500-2500rpm, 2500-4000, and 4000-redline.

I also have those same parameters for spark modification....


when I'm out there, I know I should be shooting for 12.5-13 AFR at wide open throttle, but what about partial throttle? What should I shoot for on the timing aspect as well, both part and wot?

thanks.....

adding timing globally is generally discouraged. you should increase the timing for each individual rpm range until it knocks, then back off the timing a bit.

for part throttle, you want 14.64:1 AFR.