Tuning with Airbox, then exhaust
12-21-2005, 07:48 AM
#1
Race Director
Thread Starter
Tuning with Airbox, then exhaust
If my new Autotap ever shows up, I'm going to do some logging. I plan on either dialing in OR simply recording the adjustments needed for my airbox, THEN doing a final log and tune when I put Supermaxx headers on.
Maybe I'll do like Hall and sell my tunes, or more likely, I'll just give the info away.
Dave
Maybe I'll do like Hall and sell my tunes, or more likely, I'll just give the info away.
Dave
12-21-2005, 08:57 AM
#2
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St. Jude Donor '07
Originally Posted by davidfarmer
If my new Autotap ever shows up, I'm going to do some logging. I plan on either dialing in OR simply recording the adjustments needed for my airbox, THEN doing a final log and tune when I put Supermaxx headers on.
Maybe I'll do like Hall and sell my tunes, or more likely, I'll just give the info away.
Dave
Maybe I'll do like Hall and sell my tunes, or more likely, I'll just give the info away.
Dave
12-22-2005, 07:25 AM
#3
Race Director
Thread Starter
did some logging tonight (airbox only), and my fuel trims are great. Basically around 2-4% added fuel. Starting to look like people having trouble codes with airbox changes must be having leaks behind the MAF.
I'm gonna try and hit the local rear-wheel dyno before my exhaust system comes in.
I'm gonna try and hit the local rear-wheel dyno before my exhaust system comes in.
12-24-2005, 10:15 PM
#4
Drifting
Have you found any information on torque management other than just turning it off? Mine has only been adjusted in the TQ by RPM & gear table to match my output. I really do not want to turn off everything due to losing AH and TC for street driving.
Also any ideas on the numbers in the axle, trans and max TQ tables? The factory numbers seem very high in the MN6 cars.
Also any ideas on the numbers in the axle, trans and max TQ tables? The factory numbers seem very high in the MN6 cars.
12-24-2005, 11:08 PM
#5
Race Director
Thread Starter
it sounds like you've done the right thing, according to Ken Kelly of Carputing. I think the axle/trans table include clutch multiplication, and that is why the numbers are so high. He mentioned that those numbers were likely "high enough".
I'll probably raise my torque by gears 20% or so, and just assume that's enough. I don't plan on raising my power more than about 10%, so 20% should be enough to cover that and then some...
I'll probably raise my torque by gears 20% or so, and just assume that's enough. I don't plan on raising my power more than about 10%, so 20% should be enough to cover that and then some...
12-28-2005, 07:35 PM
#6
Drifting
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Originally Posted by davidfarmer
did some logging tonight (airbox only), and my fuel trims are great. Basically around 2-4% added fuel. Starting to look like people having trouble codes with airbox changes must be having leaks behind the MAF.
I'm gonna try and hit the local rear-wheel dyno before my exhaust system comes in.
I'm gonna try and hit the local rear-wheel dyno before my exhaust system comes in.
12-28-2005, 09:08 PM
#7
Race Director
Thread Starter
yes, but it isn't necessarily from the airbox. A totally stock C6 would likely be off a percent or two, from my understanding.
ANYWAY, yes, the O2 sensors are correcting the fuel tables for whatever reason. At this point, we'll say it is due to the airbox. In theory, when I add the less restrictive exhaust, the LTRMS should got up to say 5-8%. From what I've read in various places, you the LTRMS can correct for about 20-25% lean before you throw a code.
ANYWAY, yes, the O2 sensors are correcting the fuel tables for whatever reason. At this point, we'll say it is due to the airbox. In theory, when I add the less restrictive exhaust, the LTRMS should got up to say 5-8%. From what I've read in various places, you the LTRMS can correct for about 20-25% lean before you throw a code.
02-10-2006, 11:43 AM
#9
Tech Contributor
Originally Posted by davidfarmer
yes, but it isn't necessarily from the airbox. A totally stock C6 would likely be off a percent or two, from my understanding.
02-10-2006, 02:37 PM
#10
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Originally Posted by SpinMonster
Mine was off +18-20% stock. Headers, air cleaners, FAST, and ported heads put me at +26 and I got a light. No leaks.
02-13-2006, 11:14 AM
#11
Race Director
Thread Starter
yes, mine were all fine, withing 5% most places, no more than 7-8 max. Now that I've run a few miles and installed my Corsa exhaust, I want to do some serious logging. Might even shut down the MAF and dial in my tables IF they are off much.
