Will dual cut outs affect my A/F mixture?!
10-22-2002, 11:15 PM
#1
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Will dual cut outs affect my A/F mixture?! I just had my car tuned w/ LS1 edit and i am tuning it through my full exhaust. 1-7/8 long tubes 3" OR y-pipe w/ GMMG exhaust(sounds awsome in case you were wondering <img border="0" title="" alt="[Big Grin]" src="gr_grin.gif" /> )
Ok well on to my point. I had dual 3" cutouts installed after the collector over 18" from the 02 as to avoid any problems w/ irregular readings. Do you think that would LEAN/RICHEN me by running wide open? I am tweaking the car to perform through full exhaust because that is how it will run 90% of the time.
Thanx for any insight! <img border="0" alt="[cheers]" title="" src="graemlins/gr_cheers.gif" /> <img border="0" title="" alt="[Confused]" src="images/icons/confused.gif" />
Ok well on to my point. I had dual 3" cutouts installed after the collector over 18" from the 02 as to avoid any problems w/ irregular readings. Do you think that would LEAN/RICHEN me by running wide open? I am tweaking the car to perform through full exhaust because that is how it will run 90% of the time.
Thanx for any insight! <img border="0" alt="[cheers]" title="" src="graemlins/gr_cheers.gif" /> <img border="0" title="" alt="[Confused]" src="images/icons/confused.gif" />
10-23-2002, 09:51 AM
#2
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Re: Will dual cut outs affect my A/F mixture?! "over 18" from the 02"
I'm not sure this is enough. I always use AT LEAST 18" from the end of the collector. But, I've never experimented to see exactly how long they really need to be (I'm sure this would vary from setup to setup.) Well, if you Ltrims go sky high at idle you'll know they need to be longer.
So long as your extension tubes are long enough I don't think you'll see much difference in the mixture.
I'm not sure this is enough. I always use AT LEAST 18" from the end of the collector. But, I've never experimented to see exactly how long they really need to be (I'm sure this would vary from setup to setup.) Well, if you Ltrims go sky high at idle you'll know they need to be longer.
So long as your extension tubes are long enough I don't think you'll see much difference in the mixture.
