turbo boost preasure?
Hotshot
Joined: Dec 2012
Posts: 11,270
Likes: 1,654
From: Las Cruces New Mexico
That EGT probe should of been in either exhaust manifold, you'll get as much as a 300° difference.
Load means your driving your truck around making heat in exhaust to spool the turbo
No load -accelerate in parking/ neutral and there's no heat or air velocity to make the turbo spool.
Load means your driving your truck around making heat in exhaust to spool the turbo
No load -accelerate in parking/ neutral and there's no heat or air velocity to make the turbo spool.
Last edited by z31freakify; Jul 31, 2016 at 04:43 PM. Reason: stupid spell check
Hotshot
Joined: Feb 2009
Posts: 10,408
Likes: 75
From: Plankinton, SD
If you are running 1100 degrees with the egt probe in the downpipe, you very well could be asking for problems if not already caused some. Like Adam said above, there could be at least 300 degrees difference between there and the manifold, and you don't want to run over 1250 very long with it in the manifold..
Thread Starter
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New User
Joined: Mar 2014
Posts: 24
Likes: 0
ok guys
This is getting crazy!
Lets assume turbo is working and making up to 17psi at 3000 RPM when truck is pulling a load.
If i keep the propane set mild and my tuner for no more than 50 HP and watch my EGT's am I in any danger to hurting the motor?
Thanks HB
This is getting crazy!
Lets assume turbo is working and making up to 17psi at 3000 RPM when truck is pulling a load.
If i keep the propane set mild and my tuner for no more than 50 HP and watch my EGT's am I in any danger to hurting the motor?
Thanks HB
Cargo Master
Joined: Nov 2010
Posts: 2,797
Likes: 10
I hope I don't make you angry, but have fun with the propane. My previous post was a forewarning. There is a reason no one does it anymore. I give you maybe 3 oil changes before you window a piston running 1100 degrees at the down pipe and adding propane and more fuel on a chip... Best of luck.
Run the chip, get rid of the propane, and put your egt gauge in the manifold.
I will say with propane and a mild tow tune on a stock turbo high 20s to 30 psi is achievable!!! Go for it!
Posting Guru
Joined: Aug 2004
Posts: 2,417
Likes: 4
From: Braham MN
And move the pyro probe to the manifold, you'll be amazed at how much difference there is.
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Logistics Pro
Joined: Jun 2012
Posts: 4,063
Likes: 2
From: Southeastern IL
Most that iv seen were right beside a cylinder. There's no magic location as long as it's in the manifold
Lead Driver
Joined: Apr 2016
Posts: 7,196
Likes: 1,339
From: Bahstun
Right after manifold in the up pipe where you can drill from below. Just need to get that lil EGT adapter hole made and tapped.
Posting Guru
Joined: Aug 2004
Posts: 2,417
Likes: 4
From: Braham MN
It is virtually impossible to drill the up pipe, I did it ONCE....
If you lay under the truck look up at the drivers manifold, there is a nice open spot right in the middle of the bend between the #8 cylinder port and the exhaust donut.
With 2 bits and a tap i can install the probe in 15 minutes.
If you lay under the truck look up at the drivers manifold, there is a nice open spot right in the middle of the bend between the #8 cylinder port and the exhaust donut.
With 2 bits and a tap i can install the probe in 15 minutes.
Senior User
Joined: Oct 2015
Posts: 320
Likes: 8
It is virtually impossible to drill the up pipe, I did it ONCE....
If you lay under the truck look up at the drivers manifold, there is a nice open spot right in the middle of the bend between the #8 cylinder port and the exhaust donut.
With 2 bits and a tap i can install the probe in 15 minutes.
If you lay under the truck look up at the drivers manifold, there is a nice open spot right in the middle of the bend between the #8 cylinder port and the exhaust donut.
With 2 bits and a tap i can install the probe in 15 minutes.
