Savington

iTrader: (31)

It's a good thing I work for myself, then, eh?


No, it doesn't. Spark plug readings are worthless unless you do them properly. If you want to make a pull, run the motor to 7k, and then immediately shut it off, coast to the side of the road, and read the plugs, you will probably get some pretty decent readings. Do it 10 times and compare it to a wideband and I would probably start to give the readings some weight. Until then, they are arbitrary, just like I said they were. I can (and have) tuned 2-stroke motors on spark plug readings.


"Sweeping unsupported statements?" Fine, I'll support them. Narrowband O2 sensors do one thing: tell you whether you are leaner or richer than stoich. That is IT. Any LED display telling you what an O2 sensor is reading tells you that same thing: You are richer or leaner than 14.7:1. If anyone is sitting around confusing new members, it's you: Insinuating that narrowband O2 sensors provide even a modicum of decent forced induction tuning data is misleading, incorrect, and DANGEROUS. Your comment that wideband provide "greater granularity" is hilarious. Yeah, they do provide greater granularity, but it's not like you are comparing a power steering rack to a depowered steering rack, here. It's like you are comparing the ******* Flintstone mobile to a Lotus. Widebands will provide around 5,000 different voltage readings (0 to 5 volts with .001 resolution), with the restriction probably being in the ability to actually interpret the data, since you only have about a thousand points at minimum of actual AFR readings (10 to 20 with .01 resolution). Narrowbands provide TWO voltage readings: 0v and 1v. That's it. So yes, they do have greater granularity, by a factor of five thousand. I stand by my original comment 100%: Narrowbands are ******* useless.


Again, reading plugs is stupid and archaic, and if you don't do it right like I described you don't get decent readings anyway. Narrowbands don't have limited utility, they have NONE. ZERO. They are WORTHLESS. The oil pressure gauge comment is a little comical, too; it only picks up serious detonation, and a simple pair of det cans or an amplifier will do so much more for nearly no initial investment.


I'll be very honest with you here. I respect Shiv because I have heard a lot of good things about him. At the same time, I know people who wouldn't let Shiv tune their lawn mower. You can take that as you will, but just because some great person does something doesn't make it ultimately correct. I use a wideband and a knock sensor, and I've been stuffing 13-17psi through a 155,000 mile longblock for 25,000 miles now, and about 22k of that has been on my tuning. I built my own setup, tuned it myself, and I while I don't pretend to be an expert, I know a little bit about what I am talking about, enough to be able to actually read plugs, and I also know how hard it is to learn to do. New members are going to **** their **** up if they attempt to do stupid **** like tune with plugs and a narrowband. It is irresponsible for you to try and convince them that they can.


Have you ever tuned your own car? There are plenty of people who have owned lots of modified cars and never owned a wideband, and I bet you can count on one hand the percentage of them who have tuned their own setups. The people here build AND tune their own setups, and again, you can count on one hand the percentage of us who don't own widebands. Widebands are a PHENOMENALLY useful tool. They make tuning a car idiotproof, and trust me, when you are just starting out, that is exactly what you want and need.

I would also suggest you stop insulting me. In case you didn't notice, the last 5 replies to your post were sarcastic. I am willing to listen to what you have to say, since you seem reasonably knowledgeable, but you aren't the only person here who knows what they are talking about.

y8s

iTrader: (8)

yes, everyone drop the insults unless they are directed at Shiv.