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Dry Kit Tuning?

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Old Feb 9, 2006 | 11:52 PM
  #21  
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Originally Posted by BriancWS6
Hmmmm, see the reason that I didn't descreen the MAF is because it has been said more times than I can count to leave the stock MAF untouched.

I did however on my previous car before hearing all of the talk about leaving it alone, descreen the MAF on my A4 car. I honestly never saw any adverse effects from doing so. Maybe I will CAREFULLY remove it, cause if done so with care it can be reinstalled sucessfully.
good luck, everyone I have pulled is a piece of crap when I am done, but I pull with intenion of not going back in, it's just a restriction anyway.
Robert
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Old Feb 10, 2006 | 12:02 AM
  #22  
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you should get your car checked out by a competent tuner, definitely get a AF reading, see where you are at, dry shots like to spike lean when they first hit, there are some things you can do to fix that,IE pull some extra timing in that region, and with the right year computer there is a fucntion for IAT vs PE fuel, to add some in there, but that also may cause problems with extremely cold weather, IATs usually drop the intake temps 60-70 degrees over ambient. with the right tune you can also split your timing tables for when the dry shot hits it drops timing, but for NA use it wont suffer at all, becuase the two scenarios operate at different g/cyl. I am positive anyone with headers, intake and exhaust with a dry shot is maxing out thier stock injectors, (ive seen header and intake cars do that!)while it may work for a while, it only leads to one thing in the end. cars I have done in the past with bolts and a dry shot had 30s at least, and I have done some open line (175 dry) shots with 42# injectors. definitely get some fuel in there! hope this helps!
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Old Feb 10, 2006 | 06:48 PM
  #23  
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Whats the A/F ratio do you get with a dry kit? Is it iradic or is it pretty smooth? The longer your into the run does it get leaner?
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Old Feb 10, 2006 | 07:02 PM
  #24  
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Originally Posted by BAKNBLK
Whats the A/F ratio do you get with a dry kit? Is it iradic or is it pretty smooth? The longer your into the run does it get leaner?
depends on nozzle placement and how much nitrous passes over the maf wires. the maf will add the extra fuel as needed until you max out the maf which shouldn't be a problem as i have sprayed around 225rwhp thru mine. but for some reason on the first stage 100 shot it sometimes goes to 13.1a/f for about 1000rpm but the nozzle placement is the standard 5177 kit. as soon as the second stage 150 jetting hits the a/f drops to around 10.9 to 11.5a/f but i have a single nozzle on the second stage and its about 4 inches from the maf and aimed directly at the maf. since the last time i logged my a/f on nitrous i have cleaned my maf, so i will see how this effects my a/f on the nitrous. i would like to get the first stage a/f closer to 11.5-11.8a/f. any suggestions? the maf was pretty dirty from my old procharger setup blowing oil into the maf and intake.
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