EGT or Greddy A/F???????

[1garnetredlx]

I want to have everything ready to go when my turbo gets here. I've had some people tell me to get an EGT and people tell me to get an A/F guage. On Terry's recent thread he commented on how accurate his Greddy A/F gauge was. I called the place where I get most of my goodies to see if they had it and to get a price on it. He told me that an EGT was the way to go. I don't doubt Terry one bit but he's a hard guy to get ahold of. I'm just not sure. Not only that but from what I've seen, EGT's are much cheaper. Any opinions welcome.

 

[PaulMP3]

i ve got a greddy egt and a wideband. my egt cost 150

 

[1garnetredlx]

i ve got a greddy egt and a wideband. my egt cost 150

I was also told that it's pointless to have both.

 

[SleeperCivicEX]

The only difference between a AFR and EGT gauge is that with a AFR gauge, it just shows if you're running rich or not. It's impossible to tell exactly how rich your mixture is with an AFR.

If you go with an EGT, you need dyno time to build a base temperature range, so that way you know if you're running rich or not. If I had an AFR, I would go with a wideband O2, but they're $$$ and I can't afford one.

 

[igdrasil]

I have both.

And let me tell you. I monitor the A/F mostly. Its 100 times faster. As soon as you floor the gas, you will know that you are running lean or rich.
After that I must see how heat is building up.

For example, as I know that Im running rich or lean, The EGT will confirm all situations.

If rich i will go all the way . If lean, of course i will go vacumm, step aside if its safe or go home and check everything.

Its not bad to go with both, but if you are going to buy an A/F, be sure to get a good one as the greddy.
Or if you are getting an EGT, be sure to get an electronic one...its fast.

 

[1garnetredlx]

I have both.

And let me tell you. I monitor the A/F mostly. Its 100 times faster. As soon as you floor the gas, you will know that you are running lean or rich.
After that I must see how heat is building up.

For example, as I know that Im running rich or lean, The EGT will confirm all situations.

If rich i will go all the way . If lean, of course i will go vacumm, step aside if its safe or go home and check everything.

Its not bad to go with both, but if you are going to buy an A/F, be sure to get a good one as the greddy.
Or if you are getting an EGT, be sure to get an electronic one...its fast.

Do you have the Greddy? If so do you need a wideband o2 sensor? I'm going to be running almost the same setup as you so any answers would be great!

 

[SleeperCivicEX]

You don't NEED a wideband O2 sensor, but they're nice to have b/c they're much more accurate than a normal O2.

 

[1garnetredlx]

You don't NEED a wideband O2 sensor, but they're nice to have b/c they're much more accurate than a normal O2.

Sorry I should have clarified myself. I wouldn't even bother with the A/F guage with the factory o2 sensor. Terry had posted that his Greddy A/F was just as accurate as his uego with a wideband. I was basically wondering if I can get the Greddy, install it and go. Or will I have to buy a wideband o2 sensor first? I want it to be accurate.

 

[igdrasil]

Yes Im running both, EGT and A/F from Greddy.
Perfect Match
The greddy A/F comes with its own sensor. The only thing you have to do is, bung a hole in the downpipe to plug the sensor, its the same size as the stock O2 sensor.

 

[1garnetredlx]

That's exactly what I wanted to know. Pics help a bunch also. Thanks a lot! I'm gonna order the Greddy A/F tomorrow! Where did you get yours from? I've got a charge account with NOPI but they didn't have the thing in stock :mad:
Thanks again all of you for all of your help!

 

[igdrasil]

Spool-Turbo.
I ordered it with the kit, so I saved a bit on shipping.

 

[SleeperCivicEX]

How do you read that A/F gauge anyway? I've got an AutoMeter AFR gauge and it looks completely different.

 

[1garnetredlx]

Spool-Turbo.
I ordered it with the kit, so I saved a bit on shipping.

Cool. Thanks again.

 

[spoolinmp3]

Jeremy we have these in stock (greddy a/f) about the egt well I think Igdrasil and SleeperCivicEX summed it up perfectly, If I were you I would go with the greddy a/f since it is much faster and the egt has a bit of lag on it, not as bad as an autometer egt but check it out

 

[1garnetredlx]

Thanks Terry! I tried to call you a couple of times Thursday but you were out and about. I'll try calling you tomorrow. I'm going to go with just the Greddy A/F. The guy that I usually deal with at NOPI suggested an Autometer EGT. He seems to know his stuff but obvoiusly doesn't know our cars very well.

 

[spoolinmp3]

No prob
I am usually in the shop in the morning and late at night, in the middle of teh day I am running around like a chicken with no head.....I am to busy
I need a vacation

 

[igdrasil]

I have seen the best autometer EGT, electronic, and its crap.

Sure will monitor EGT good, but I think the probe has a tendency to keep heated up. So you will not know for sure if the heat is going down fast.
The greddy is faster.

But you will do better with the A/F.

I do have the both because with only 1psi of boost, heat builds anyway and a rich mixture is not that precise lets say in 4th gear, lower rpms, but as you try to keep the speed, boost will build, so heat will come, and on the long run, heat can be bad if you dont see it.

 

[SleeperCivicEX]

igdrasil: I noticed in your 15.3 vid that your pillar cover is missing. Is the interior in your ride stripped out? Also, you hit the hazards during the vid. Were you at the track or street racing?

 

[igdrasil]

igdrasil: I noticed in your 15.3 vid that your pillar cover is missing. Is the interior in your ride stripped out? Also, you hit the hazards during the vid. Were you at the track or street racing?

got the dual pillar pod from autometer and was trying to colormatch and hook it up before puting it back.

interiors are stock

i was on the track having some fun...

i go to the track a lot...its where all the street racers meet to talk crap and stuff, drink beer and watch some serious cars

 

[SleeperCivicEX]

Man, sometimes I wish I'd never moved from San Antonio because the racing crowd was so big and there were a LOT of one-off projects coming out of shops like the Alamo Autosports turbo Focus. I miss the racing, but I don't miss the big city!