Not knowing really anything about FI. My buddy has an 03 Cobra and I just did a blower upgrade to it. He wants a wideband A/F gauge b/c he heard it's better than the regular A/F gauge he has now. What is the difference between the two and is the $250 difference worth it? Thanks for the education.

 

There is no such think as a wideband boost gauge.
As for FI it is nice to have a boost/vac gauge vs just the boost gauge.
A "Wideband Ari Fuel Ratio gauge" is probably what he is thinking about, which are high dollar. And are great compared to just the standard Air Fuel ratio gague, which is just a light show.

 

Yeah, it's A/F I have no idea why I put boost. I'm a tard. Sorry.

 

the regular A/F gauges i believe your talking about gets its readings from the narrowband o2's, these are extremly INACCURATE, and pretty much just a waste of money. if you want to tell what AFR your running you have to get a wideband 02 with gauge or and EGT gauge

 

So, since it's a blown car from the factory it doens't have wideband 02's? he should also get some 02's I guess. I don't know much I'm just the wrench in this one. We're learning at the same time.

 

No a SVT cobra does not come stock with a WbO2 sensor, your best bet if you care about the car is to get yourself some dyno time with a WBo2 or invest in a WB setup which will run you right around 600

 

Here look at this great unit for the cost. http://www.widebandcommander.com/

 

Talk to these guy's about it--http://www.dynotunenitrous.com/store/scripts/prodlist.asp?idcategory=118

I'm very happy with the LC-1 with the round display. Easy install and works great.

PTK also carries a good Wideband. They have a couple of different options which are a little cleaner(not as many wires and has digital and sweep gauge) than the LC-1--http://www.proturbokits.com/store/scripts/prodList.asp?idCategory=121

Call Dalton, he can hook you up --(210)657-2706

Later,
Dave

 

So, would the kit that dynotune has work? The one that converts the existing gauge to a true wideband?

The one that's $200<--that's the exact gauge he's got.
http://www.dynotunenitrous.com/store...idcategory=118

 

Yep that's exactly what I did, converted the old crappy autometer gauge to read wideband. Only thing is, each mark is .4 a/r (11.5, 11.9, 12.3 ect) which is a little less accurate, but the exact reading can be read using a laptop and the software provided.

 

So what's in the kit that makes it a wideband. Besides the 02.

 

voltage conversion (box) from the O2 sensor to an output that shows an actual air/fuel ratio. Just like the wideband on a dyno. The $200 one your looking at is prewired to hook straight into the autometer gauge, and give the wideband values (instead of the narrow-band readings it shows now).

 

Cool, thanks.

 

Here's a little more technical info that will explain the differance and function
http://www.wmsracing.com/o2/tech.htm

Later,
Dave