What did you do to your OBS GMT400 Tahoe/Yukon Today?

[Beechwood]

Looked under the hood to see how the new headers are doing. Also got a data capture run. May need to De-Jack my t-bars a bit. I think when I jacked them up it really hurt the aerodynamics. I Think I lost about 2 mpg after jacking them up. Any thoughts?

Considering mileage depends on Coefficient drag and frontal area, I would suspect it does have a very negative effect on mpg. The basic formula is Cd x Frontal Area x Density of Air x Speed Squared. So if you increased your frontal area by raising the truck, plus figure in the fact the front air dam isn't as effective at reducing the drag under the vehicle, I would think its very plausible that lowering the front end would be beneficial.

That being said, there is no substitute for sitting up high

 

[19 tahoe 97]

I broke 200k today.

 

[BirchyBoy]

I broke 200k today.

Woot woot! Here's to the next 200k!

 

[qukon 95]

Replaced bad battery after not starting the yuk in two days the radio will be dead.Been doing it for
Awhile now.

 

[DaRosa218]

Well, I went and bought/picked up the Tahoe yesterday. I will post pics as soon as there is some daylight out

 

[DaRosa218]

And here she is! Not the prettiest at the moment, but she'll get there soon. Best part is I got it cheap!!!!

 

[95escahoe]

And here she is! Not the prettiest at the moment, but she'll get there soon. Best part is I got it cheap!!!!

Looks good, what your plans?


Sent from my HTC One X using Tapatalk

 

[DaRosa218]

And my pops and I parked together



---------- Post added at 03:52 PM ---------- Previous post was at 03:48 PM ----------

Looks good, what your plans?


Sent from my HTC One X using Tapatalk

Im planning on going a little old school mixed with performance. It has an 8 month old rebuilt 5.7L. I am going to do a RV Cam, Headers, Intake, Hypertech chip, corvette servo, MSD Ignition and possibly up the gears to 3.73 with limited slip form the open 3.07 rearend it has now.

I also plan to repaint it and do a DJM 4/6 drop on 1996 Impala SS rims

Basically a 4-door version of this!

 

[95escahoe]

And my pops and I parked together



---------- Post added at 03:52 PM ---------- Previous post was at 03:48 PM ----------



Im planning on going a little old school mixed with performance. It has an 8 month old rebuilt 5.7L. I am going to do a RV Cam, Headers, Intake, Hypertech chip, corvette servo, MSD Ignition and possibly up the gears to 3.73 with limited slip form the open 3.07 rearend it has now.

I also plan to repaint it and do a DJM 4/6 drop on 1996 Impala SS rims

Sounds good, what year?

Sent from my HTC One X using Tapatalk

 

[MC153]

Been changing all my lines. Last week was oil cooler today was power steering. Hopefully I got them tightened down good enough so they don't leak. I had to go to Lowes to get a 16 stubby wrench, that made things ten times easier.