EFT Installed - Got some data runs

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Oct 16, 2011 | 11:48 PM

Tylus

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From: SE Georgia

EFT Installed - Got some data runs

Did some data runs today after doing my EGT probe install. Really neat feature, but alarming data as well (sorta)

0mph with WOT to 60 mph: Rockets from 200F to 1400F

30-35 mph cruising in town: 400-500F
55-60 mph cruising on highway: 550-750F

550F on level ground
fluctuates from 550-750F with minimal change in grade (low boost). coasting downhill saw 400F a few times

While accelerating, it is typical to see 700-900F with minimal throttle. Once you reach your desired speed, the temps drop out quickly. Is that normal? Seems really high when most people quote 1,200F as the upper limit. Truck is bone stock from intake to exhaust tip except for Kitty delete and Gearheads SLR tune.

Oct 16, 2011 | 11:50 PM

ol-blu

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Are you pre or post turbo with the EGT Probe?

Oct 17, 2011 | 12:41 AM

Tylus

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From: SE Georgia

pre turbo using drivers manifold. probe is installed aft of the #8 cylinder where the manifold begins curving upwards towards turbo

Oct 17, 2011 | 12:46 AM

MisterCMK

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From: Blue Hill Township

So it gets hot quick with the SRL tune, eh?

Oct 17, 2011 | 01:29 AM

Tylus

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From: SE Georgia

yeah...she gets hot damn quick

on the other hand...she gets up to speed extremely quickly. Wife was griping at me earlier asking me how long I expected the rear tires to last

Oct 17, 2011 | 04:51 AM

wulfman

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From: knox Tn

Tylus the wife's always have something to say about our trucks don't they. Mine is same way .

Oct 17, 2011 | 08:08 AM

MisterCMK

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From: Blue Hill Township

After 60 do the EGTs keep climbing? I would be curious to see how they chance after you put exhaust on the truck.

The reason I ask is I have the same setup as you to a T.

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Oct 17, 2011 | 12:53 PM

SteveBricks

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From: Lakewood, Ca.

Quote:

Originally Posted by Tylus

That's the same thing I see, and I've had the same set-up as you (with the exception of the missing cat) for a year or so. Hitting 1400* for short periods of time isn't a problem, but sustained operation at that temperature is something you'll want to avoid.

Oct 17, 2011 | 12:55 PM

#10

BPofMD

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From: Millersville, MD

Our high temp is more like 1400..... When I tow, 1000* is pretty normal to see in a very slight incline. BIG hills I've seen 1300 a lot..... but it drops right off quickly when it drops a gear.....After seeing what I've seen since I've had the truck (05), I now seldom even look at EGT's anymore! The truck is smart enough to keep me safe!

Oct 17, 2011 | 04:14 PM

#11

bpounds

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From: Whittier, CA

Quote:

Originally Posted by Tylus

Did some data runs today after doing my EGT probe install. Really neat feature, but alarming data as well (sorta)

0mph with WOT to 60 mph: Rockets from 200F to 1400F

30-35 mph cruising in town: 400-500F
55-60 mph cruising on highway: 550-750F

550F on level ground
fluctuates from 550-750F with minimal change in grade (low boost). coasting downhill saw 400F a few times

That's why you don't tow with those tunes.

Quote:

Originally Posted by BPofMD

With stock tuning, I agree. Them boys ^^^ ain't running stock tunes. About 1300° is all I see with stock tuning and it takes pulling a load on a good hill to see that much. The truck will either downshift, or I will back off a little right around there.

Oct 17, 2011 | 06:46 PM

#12

Tylus

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From: SE Georgia

I do wonder how my tires are affecting temps. I bet stock sizes are slightly lower temps since engine is working a little bit less

Quote:

Originally Posted by bpounds

That's why you don't tow with

I'm not towing or hauling and I'm seeing those numbers

Full tank of diesel
Me, Wife, 4 kids in cab
Stroller in bed
Toolbox is empty until I rekey it

So overall not alot of weight IMO

Oct 20, 2011 | 04:00 PM

#13

MisterCMK

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Joined: Mar 2003

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From: Blue Hill Township

I bet they are not affecting it much. A hot tune is going to bring higher EGTs. I am curious how your EGTs drop once you put a different exhaust on the truck.

Like Steve said the 1,400* EGTs for a short burst aren't something to worry too much about.