XRDOSE BIGRED Donating Members 1,410 Member For: 17y 9m 22d Gender: Male Location: Sth East Melb Posted 23/01/08 08:21 AM Share Posted 23/01/08 08:21 AM im having a discussion with a mate who has a 300zx TT....he is telling me that my a/f ratios are probably all over the place because I havent had my car dynod yet but I have had my car tuned by danny (headsex) with the new sniper system. would that system accurately say what my a/f ratios are? I understand the factory pcm has a a/f meter. I just wana shut this guy up lol Link to comment Share on other sites More sharing options...
Adam Here since the start... Lifetime Members 10,282 Member For: 21y 8m 19d Gender: Male Location: Victoria Posted 23/01/08 08:30 AM Share Posted 23/01/08 08:30 AM One thread is enough.Putting the car on a dyno won't change the AFR's, it will only allow them to be recorded/monitored. Link to comment Share on other sites More sharing options...
MiKa Donating Members 4,243 Member For: 18y 4m 24d Gender: Male Location: Melbourne, VIC Posted 23/01/08 08:49 AM Share Posted 23/01/08 08:49 AM As Adam said, the dyno will just show you what your AFR's are... If you get your car on a dyno nothing will change... Im sure Danny tuned it right... Link to comment Share on other sites More sharing options...
RAP1D Member Donating Members 3,739 Member For: 18y 7m 25d Gender: Male Location: Sydney NSW Posted 23/01/08 10:51 AM Share Posted 23/01/08 10:51 AM The tune should be fine mate... he used a wideband AFR to tune with so its pretty much the same as on a dyno... plus the computers self correcting is pretty darn good Link to comment Share on other sites More sharing options...
Adam Here since the start... Lifetime Members 10,282 Member For: 21y 8m 19d Gender: Male Location: Victoria Posted 23/01/08 11:01 AM Share Posted 23/01/08 11:01 AM Hang on...Is all this coming from what you are seeing on your Cobalt AFR gauge?If so I'm guessing it's fluctuating between rich and lean at cruise? It's supposed to do that. Link to comment Share on other sites More sharing options...
BFHOON Donating Members 1,932 Member For: 18y 9m 21d Gender: Male Location: nsw Posted 23/01/08 11:04 AM Share Posted 23/01/08 11:04 AM that's what I said in my deleted post, a tailpipe sensor will have a more stable reading cos its a more expensive probe. Link to comment Share on other sites More sharing options...
XRDOSE BIGRED Donating Members 1,410 Member For: 17y 9m 22d Gender: Male Location: Sth East Melb Posted 23/01/08 11:43 AM Author Share Posted 23/01/08 11:43 AM Hang on...Is all this coming from what you are seeing on your Cobalt AFR gauge?If so I'm guessing it's fluctuating between rich and lean at cruise? It's supposed to do that.nah I dont have a a/f guage I was just tryin 2 convince my mate hes a knob lol As Adam said, the dyno will just show you what your AFR's are... If you get your car on a dyno nothing will change... Im sure Danny tuned it right...yeh danny is a top tuner ive always trusted his work! Link to comment Share on other sites More sharing options...
RAP1D Member Donating Members 3,739 Member For: 18y 7m 25d Gender: Male Location: Sydney NSW Posted 23/01/08 11:44 AM Share Posted 23/01/08 11:44 AM The cheaper AFR gauges are narrow band, which are a sketchy meter to go by, but they do give a general indication, but only at WOT.A wideband is what tuners use (stuck up the tail pipe or in a bung in the front pipe) these are the only AFR meter to go by. Link to comment Share on other sites More sharing options...
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