What did you do to your NNBS GMT900 Tahoe/Yukon Today?

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i'm just over here like umm.... what's a good cat temp? lol, @80 mph mine are 1600deg's, idling for a bit there 7/800deg can't seem to find any definitive answer, can anyone with a tech2 take some data on there cat temps on the freeway and let me know what you are getting. just if you happen to be going somewhere or whatever, not trying to occupy anyone's time and no rush i'm just curious for my own piece of mind.

On the highway cruising at 75-80 mph mine are 1475-ish and if going up a slight hill will get around 1500. If I accelerate about half throttle like to pass a vehicle it gets up to 1550 or so. I'm sure if I pushed it harder or floored it I could get into the 1600's.

I'm pretty sure my entire exhaust it OE
 

iamdub

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Its always nice when the pump kicks off, and you remove the nossle, and give it a shake and another little splash comes out. Thats like several engine rotations you just got for free

Actually, it's a little splash that you've already paid for and you're just getting it rather than leaving it in the hose for the next guy. The fuel in the hose has already been metered.


EIN_0836631_S_06_XX_big.jpg
 

Doubeleive

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On the highway cruising at 75-80 mph mine are 1475-ish and if going up a slight hill will get around 1500. If I accelerate about half throttle like to pass a vehicle it gets up to 1550 or so. I'm sure if I pushed it harder or floored it I could get into the 1600's.

I'm pretty sure my entire exhaust it OE
OK, THANKS :)
 

bfourman

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i'm just over here like umm.... what's a good cat temp? lol, @80 mph mine are 1600deg's, idling for a bit there 7/800deg can't seem to find any definitive answer, can anyone with a tech2 take some data on there cat temps on the freeway and let me know what you are getting. just if you happen to be going somewhere or whatever, not trying to occupy anyone's time and no rush i'm just curious for my own piece of mind.
Not a Tech2 but here's mine from today, about 68 mph. Stock 6.0 with 230k, OG cats.
6ef89e1149bc2cbb1afd0133911af7fd.jpg
 

R3cord303

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Actually, it's a little splash that you've already paid for and you're just getting it rather than leaving it in the hose for the next guy. The fuel in the hose has already been metered.


EIN_0836631_S_06_XX_big.jpg
That must be why gas/e85 can all come from the same hose and diesel has to have a seperate one. Cause if last guy got 87 octane, the tube has 87 in it.
 

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