Wideband or G-tech, you can only pick one

[themadscientist]

I need to tune my fuel out. I can't afford to ride a dyno for an afternoon so I will have to do it on the street. I can get one or the other, an Innovate wideband or a G-tech. Now before you pick some points to consider.I know everybody is wideband crazy these days so keep in mind while it is good to know what your A/F is unless you have a dyno you cannot be sure what ratio makes maximum power on a particular application, all engines breathe differently and make power at different ratios to some degree so in the absense of a dyno it's arbitrary. I have a narrowband that will warn me when I get lean enough to worry so I am not totally in the dark but it is not as accurate as nor will it datalog like the Innovate.Now the G-tech. I know it is likely not as accurate as a chassis dyno but it is better than seat of the pants. I need something that is reasonably repeatable so I can see if the tweak I just made is going in the right direction. I am leaning towards the G-tech as I am trying to make power not an A/F ratio but I would like to hear some opinions and hopefully some experiences from owners of the two products.

[AZhitman]

How good are your ears? Can you hear knock?

Wideband all the way.

[Ozzie]

I bought a G-tech for cheap from ebay quite a while ago.

The instruction manual shows you how to get repeatable results.(Drive on flat road, take 5 results, average the best three)You will need to know the weight of car, including driver, to get accurate results.

I could scan the manual for you so you could have a read, and decide if it's what you are after.http://www.gtechpro.com/ss.html

Too bad mine doesn't look like this! Mine is the old school red LED readout.

[Ozzie]

http://www.gtechprosupport.com...o.pdf

Thats the PDF of the one I have....

And the page listing the user manuals (in PDF) for the other models

http://www.gtechprosupport.com/support/Manuals.htm

A page showing the units from inception to present.Lots of info about accuracy, prices, features.Under the accuracy tab, there is a video showing the G-tech at work on a drag strip, and the readout is exactly the same as the time slip!

http://www.gtechpro.com/prod.html

[themadscientist]

How good are your ears? Can you hear knock?

Wideband all the way.

I have a knock meter That reminds me of a funny phone call I got.

"mike's massage parlor and shooting range"

"dude, what does knock sound like"?

"ummm, why do you ask"?

"we are trying to set up my freinds extra injector controller and we are trying to hear knocking to know when to turn it on"

(bangs head on steering wheel to make the pain go away)"Bill, whatever you are doing stop, the idea of the two of you trying to hear knock in a speeding car is the equivalent of leaving a retarded kid in a room with a pack of razorblades. By the time you hear it it's to late, it kind of sounds likeBOOM!"

He was a fun one. Billy Morris, the longest arms in racing.

[Fahaka]

I know nothing about your car, so posting up some information about it would help in the process.

If you are running an na ka with a pfc and need to make a new tune to eek out a few hp then yes get the g-tech

if this is a turbocharged motor with anything above stock mods and you are tuning a piggyback/standalone, wide band a/f ratios are way more important than the g-tech regardless of your knock sensors or your narrow band...all it takes is one good detonation to wreck your motor.

[Ozzie]

I have a narrowband that will warn me when I get lean enough to worry so I am not totally in the dark but it is not as accurate as nor will it datalog like the Innovate.........

I am leaning towards the G-tech as I am trying to make power not an A/F ratio but I would like to hear some opinions and hopefully some experiences from owners of the two products.

C'mon guys, read the whole post!

I still say G-tech, in conjunction with the narrowband.

[themadscientist]

CA18DET, S14 turbo, full exhuast, FMIC, HKS VPC (no MAF). I am hoping to step up to a standalone with wideband logging capability but not soon. I will likely bring my HKS sub injector controller out of mothballs and slap four subs into the mix to pick up the fuel delivery when the stock squirters fall off. I know it's ghetto but I have the parts to do it and it does work so there is no reason not to. They want $50 for three dyno pulls round here and not enough time to really study the run and make judicious tweaks in between so I need something with decent repeatability because I am not playing that.

[boriquaS13]

I feel you, dyno time is very expensive trust in the old faithful butt dyno and the g-tech.

[themadscientist]

My butt-dyno is pretty accurate but my girls is a much nicer model. I have done well in the past by feel and reading plugs but I want to wring this combo out before I do the fresh motor and T04E kit.

[boriquaS13]

lol Yeah I think thats the best rout you don't want to make a mistake tuning on a fresh motor. Keep us posted on your tuning though and tell us hows its going, im very interested bro in how it turns out.