olaHalo

after a yr of only 2 gauges, ive decided to get a pyrometer

but what range do i get
1-2000?
or
1-1600?

im thinking 1-2000, but thought id ask SL first
thanks

brett561tc

1-2000. is there any price diff?

olaHalo

thanks brett
i think the autometer cobalt is like 10 bucks cheaper for 1-1600

JL56TC

better over kill then under... i run at about 1800 which is a bit high but i had a 1600 that was worthless to me anyway

olaHalo

right on
went ahead and bought the electronic Autometer Cobalt Pyrometer 2000
150 bucks shipped

draxcaliber

if you have a wideband o2 sensor, why do you need an egt gauge? they essentially convey the same information, just in a different way.

i got o2, boost and oil pressure. why not do oil pressure, or fuel pressure or...voltmeter? lol

olaHalo

oil pressure will be my next gauge

toyota_scion_tc

0-2000.

My tC with CAI, FUll 2.5" mandrel bent exhaust with high flow cat (I only have one), header, and etc all bolt ons will run around 1300-1400 cruising and when I get on it it gets up to 1600 sometimes 1630. I placed the sensor exactly where they said to put it, and its mounted in the runner comming directly off the cylinder head about a 1" away from the head. The further away you mount it the less the temp will be. This is with the OEM ECU doing everything.

Ace83

iTrader: (6)

ignition timing will affect EGT too, even a good afr reading with improperly tuned ignition map will make EGT high.. afr and egt gauge i say is a good combination

olaHalo

haha ace
i agree

Guru

Ace is correct. EGT's are not just AF dependent. I usuelly don't ever see over 820 segrees C and anything over 850 is dangerous. The 0-1600 is more than enough for all Scion guys.

toyota_scion_tc

I agree with except you need the 0-2000. Newer cars are running higher EGT's for emissions purposes. My car only has exhaust and intake and the EGT's were running up to 1600 highway sometimes hits 1640 with the OEM computer.

Ace83

iTrader: (6)

so new tc have high egts? I always thought 1600 is high.. you would want you egt lower than 1600 though once you are boosted since your car would be more knock limited and hotter egts can increase chance of knocks

toyota_scion_tc

From what I have seen turbo tC's run lower EGT's than stock.

JL56TC

actually sir im running higher egts than stock... I am tuned right based on my wideband. but somehow I cracked my mani due to high egts and had to buy a new one... I guess its good to monitor your egts.. streeters ttc has a pyrometer but he gets fals reading sometimes bc of where it is mounted...your right though wideband should be enough... I guess ive had to many problems not to be as safe as possible

toyota_scion_tc

That's why you need a pyrometer and wideband.