Posts Topics Forums Images
Search videos from message boards Videos Search messages from microblogs Microblogs Search messages from imdb.com Imdb Search messages from yuku.com Yuku Search messages from lefora.com (free forums) Lefora
My account: Login | Sign Up
Loading... 

Thread: Tap the manifold
Started 1 month, 3 weeks ago by hillbilly deluxe
Any reason a guy couldn't just tap and thread a hole in the exhaust manifold for a pyrometer? I've been reading the closer to the engine the better for accurate EGTs.
Site: CK5 Forums  CK5 Forums - site profile
Forum: GM Diesel  GM Diesel - forum profile
Total authors: 4 authors
Total thread posts: 14 posts
Thread activity: no new posts during last week
Domain info for: coloradok5.com

Other posts in this thread:

DEMON44 replied 1 month, 3 weeks ago
thats exactly where it should be. pre turbo.
Size: 44 bytes
Customize:  Customize "<b>Reply 1</b>: Tap the manifold :: GM Diesel :: CK5 Forums"

kennyw replied 1 month, 2 weeks ago
Just remember, the thicker the better for the location you choose.
Size: 66 bytes
Customize:  Customize "<b>Reply 2</b>: Tap the manifold :: GM Diesel :: CK5 Forums"

hillbilly deluxe replied 1 month, 2 weeks ago
I went to a shop in town and they said it would be fine to tap the manifold. The guy showed me where his is tapped in on his Cummins manifold. The easiest place looks to be the end of the driver's side manifold. EGTs should be the same each side. It'll be at the end of the manifold so it reads all the cylinders.
Size: 317 bytes
Customize:  Customize "<b>Reply 3</b>: Tap the manifold :: GM Diesel :: CK5 Forums"

hillbilly deluxe replied 1 month, 2 weeks ago
There it is. At the end of the driver's side manifold. Also put in boost and fuel pressure. Interesting to drive now. These gauges are much more responsive than I thought they would be. I thought the EGTs would rise and fall slowly, more like the temp of the manifold. Not so, they are all over the place depending how I'm driving. With a little test drive I was able to get the EGTs to 1250 ...
Size: 839 bytes
Customize:  Customize "<b>Reply 4</b>: Tap the manifold :: GM Diesel :: CK5 Forums"

hillbilly deluxe replied 1 month, 1 week ago
I hit 1500 deg running WFO (empty) over Vail (10,554 ft) and Eisenhower (11,112 ft) passes this past Fri & Sat. Went to Banks website and they say 1250 to 1300 is okay sustained . Whadayall runnin? Also, I saw the boost gauge jump to 10 psi a couple times at the top of Eisenhower pass coming back from Denver. Figured the wastegate must have been hot and stuck closed a bit. I have never ...
Size: 542 bytes
Customize:  Customize "<b>Reply 5</b>: Tap the manifold :: GM Diesel :: CK5 Forums"

DEMON44 replied 1 month, 1 week ago
if you pull up high like that often, be wary of the turbo. you can overspeed it very easily at those altitudes. overspeed and the compressor wheel will come apart fast.
Size: 168 bytes
Customize:  Customize "<b>Reply 6</b>: Tap the manifold :: GM Diesel :: CK5 Forums"

hillbilly deluxe replied 1 week, 4 days ago
Thin air? I don't understand how it could overspeed. Shouldn't it be limited by how much exhast comes out? I ran over those passes again last week and drove by the pyrometer. Had to down shift where I hadn't been before. I probably ran 5-10 mph slower watching EGTs.
Size: 271 bytes
Customize:  Customize "<b>Reply 7</b>: Tap the manifold :: GM Diesel :: CK5 Forums"

MaxPF replied 1 week, 4 days ago
Quote: Originally Posted by hillbilly deluxe Thin air? I don't understand how it could overspeed. Shouldn't it be limited by how much exhast comes out? I ran over those passes again last week and drove by the pyrometer. Had to down shift where I hadn't been before. I probably ran 5-10 mph slower watching EGTs....
Size: 2,403 bytes
Customize:  Customize "<b>Reply 8</b>: Tap the manifold :: GM Diesel :: CK5 Forums"

hillbilly deluxe replied 1 week, 3 days ago
7 psi seems under-boosted to me. The new Fords I drive at work run up to 40 psi stock. I drove semis for a couple years, too, and they all ran 30 or 40 psi. I understand the 6.5 has higher compression though and that has something to do with how much boost can be applied. Not to mention all those vehicles had intercoolers. Intercooling makes alot of sense to me. I was thinking about an ...
Size: 531 bytes
Customize:  Customize "<b>Reply 9</b>: Tap the manifold :: GM Diesel :: CK5 Forums"

MaxPF replied 1 week, 3 days ago
Quote: Originally Posted by hillbilly deluxe 7 psi seems under-boosted to me. The new Fords I drive at work run up to 40 psi stock. I drove semis for a couple years, too, and they all ran 30 or 40 psi. I understand the 6.5 has higher compression though and that has something to do with how much boost can be applied. Not to mention ...
Size: 4,947 bytes
Customize:  Customize "<b>Reply 10</b>: Tap the manifold - Page 2 - CK5 Forums :: GM Diesel :: CK5 Forums"

 

Top contributing authors

Name
Posts
hillbilly deluxe
8
user's latest post:
Tap the manifold - Page 2 - CK5...
Published (2009-12-13 03:16:00)
Hey thanks alot for the great info, I eat that stuff up! It's a good post that everybody will find useful. The truck smokes alot but I have yet to replace the injectors and timing chain. I have to &quot;normal up&quot; the motor before I apply any expirimentation just so I can sleep right.
MaxPF
3
user's latest post:
Tap the manifold - Page 2 - CK5...
Published (2009-12-12 01:29:00)
Quote: Originally Posted by hillbilly deluxe 7 psi seems under-boosted to me. The new Fords I drive at work run up to 40 psi stock. I drove semis for a couple years, too, and they all ran 30 or 40 psi. I understand the 6.5 has higher compression though and that has something to do with how much boost can be applied. Not to mention all those vehicles had intercoolers. Intercooling makes alot of sense to me. I was thinking about an adjustable...
DEMON44
2
user's latest post:
Tap the manifold
Published (2009-11-08 23:59:00)
if you pull up high like that often, be wary of the turbo. you can overspeed it very easily at those altitudes. overspeed and the compressor wheel will come apart fast.
kennyw
1
user's latest post:
Tap the manifold
Published (2009-11-02 12:41:00)
Just remember, the thicker the better for the location you choose.

Related threads on "CK5 Forums":

Help! How to take the intake manifold off  CK5 Forums - site profile 73-91 K5/Suburban/Truck - forum profile Help! How to take the intake manifold off
Help! How to take the intake manifold off

Related threads on other sites:

Best place to run hoses to/tap intake manifold.  Honda-Acura.net - site profile Civic/Del Sol/EL - forum profile Best place to run hoses to/tap intake manifold.
Best place to run hoses to/tap intake manifold.
Gotta tap the manifold... what size bit  Mustangworld Messageboard - site profile Clubhouse - forum profile Gotta tap the manifold... what size bit
Gotta tap the manifold... what size bit
Dill and Tap intake manifold  Pro-Touring.com - site profile Engine Miscellaneous - forum profile Dill and Tap intake manifold
Dill and Tap intake manifold
Drill & tap intake manifold?  Subaru Legacy Forums - site profile Turbo Powertrains (2.0GT, 2.5GT, 2.5XT) - forum profile Drill & tap intake manifold?
Drill & tap intake manifold?
Where to tap 13bt manifold for pyro??  IH8MUD.com Forum - The Truth is in the Rocks - site profile Diesel Tech and 24 volts Systems - forum profile Where to tap 13bt manifold for pyro??
Where to tap 13bt manifold for pyro??
Need to tap my manifold for vacuum inlet on 71 Bus  TheSamba.com - site profile Bay Window Bus - forum profile Need to tap my manifold for vacuum inlet on 71 Bus
Need to tap my manifold for vacuum inlet on 71 Bus
Weld or tap cast manifold for wastegate?  Bimmerforums - The Ultimate BMW Forum - site profile Forced Induction sponsored by - forum profile Weld or tap cast manifold for wastegate?
Weld or tap cast manifold for wastegate?
Vacuum source? tap between manifold and head?  Bimmerforums - The Ultimate BMW Forum - site profile Forced Induction sponsored by Active Autowerke - forum profile Vacuum source? tap between manifold and head?
Vacuum source? tap between manifold and head?
Tap the intake manifold for vacuum?  b15sentra.net forums - site profile Modifications - Performance - forum profile Tap the intake manifold for vacuum?
Tap the intake manifold for vacuum?
Thread profile page for "Tap the manifold" on http://www.coloradok5.com. This report page is a snippet summary view from a single thread "Tap the manifold", located on the Message Board at http://www.coloradok5.com. This thread profile page shows the thread statistics for: Total Authors, Total Thread Posts, and Thread Activity
 1   2   Next »