Like Tree0Likes

Exhaust Gas Temp Guage

Reply
Old 06-30-2007, 09:17 AM
  #11
Registered User
 
Join Date: Dec 2005
Location: Doncaster Victoria Australia
My Boats: 1995 Sea Ray
Posts: 1
Default o2 sensors in marine manifolds.

sorry forgot to include picture Ford 351 windsor pictured other applications including buick v6 gm 5.7 LS1 6.0 LS2
Attached Thumbnails
Exhaust Gas Temp Guage-picture-009.jpg  
julius750 is offline  
Reply With Quote
Old 06-30-2007, 10:05 AM
  #12
GLH
Platinum Member
Platinum Member
 
GLH's Avatar
 
Join Date: Dec 2002
Location: Burlington, VT
My Boats: Azimut
Posts: 15,267
Default

The Bros here have a 50 hustler with trip 900hp's and they run those.

The number you mentioned is what they go by. They shut off if it hits 1400. usually around 1100 I think.

Hope this helps.
GLH is offline  
Reply With Quote
Old 06-30-2007, 10:14 AM
  #13
Registered
 
MitchStellin's Avatar
 
Join Date: Nov 2000
Location: Grand Haven, MI USA
My Boats: Zodiac RIB
Posts: 3,124
Default

On the truck if I see 1400 I back off but I never shut it down, I want the exhaust to keep flowing as it can cool, a boat is a different story though. I let it idle until it hits 400 or so. I see 1100 most of the time, only higher if I am towing a big load at speed up a good grade.
MitchStellin is offline  
Reply With Quote
Old 06-30-2007, 12:08 PM
  #14
Registered
 
Join Date: May 2007
Location: Louisiana
My Boats: 2001 Formula 382 "Liquidated Damages"
Posts: 330
Default

What type of gas enging needs a EGT guage. I don't have any experience with high hp gas engines. I have a little experience with diesels. I installed a egt and boost guage on a diesel in a truck. The temp guage was installed pre turbo.
We ran the engine without any mods to establish baseline data, installed an aftermarket chip, and gathered more data. Installed a propane injection system, and then you really had to watch it.

EGT's without mods 900 deg F
EGT's with chip 12-1300 on top end
EGT's with chip and propane, had to back off at 100mph, egt's touched 1500 for a sec,

Am told not to exceed 1325 deg F pre turbo.
Mackattack is offline  
Reply With Quote
Old 07-02-2007, 10:29 AM
  #15
Charter Member
 
Join Date: Apr 2001
Location: Albuquerque, NM
My Boats: Baja 322 - Twin 540's
Posts: 606
Default

I run and have run pyro's for sometime...first with my IMCO manifolds & now with my CMI's. BTW, you can send your CMI headers back to CMI and they will install the sensor coupling. I always encourage my customers to order their CMI headers with the sensor coupling, even if they do not plan on using it right away.

BTW, I usually mount the probe on the #1 and/or #8 cylinders and keep the temps at 1250 or below.
tpmarine.com is offline  
Reply With Quote
Old 07-02-2007, 10:38 AM
  #16
Platinum Member
Platinum Member
Trade Score: (1)
 
articfriends's Avatar
 
Join Date: Jun 2004
Location: Frankenmuth
My Boats: EX 99 MPH 272 Baja owner, 1999 Scarab 33 AVS NOW
Posts: 6,072
Default

I had gaffrig egts in my lightning headers in #7 & 8,they read 1500 to pegged all the time when under throttle,plugs were black and sooty. I quit paying attention to them because they obviously were way off. I tested them once with a comtrolled heat source and compared them to my pyro 2000 gauges on my snowmobile-they read 200-300 degrees too hot so don't waste your time on the gaffrigs. I currently have a 02 bung in my stainless marine 3's in #8,about 1 inch from exhaust flange on bottom,on crocketts innovate it seemed very accurate,Smitty
articfriends is offline  
Reply With Quote
Old 07-02-2007, 10:40 AM
  #17
Platinum Member
Platinum Member
Trade Score: (1)
 
articfriends's Avatar
 
Join Date: Jun 2004
Location: Frankenmuth
My Boats: EX 99 MPH 272 Baja owner, 1999 Scarab 33 AVS NOW
Posts: 6,072
Default

Quote:
Originally Posted by julius750 View Post
sorry forgot to include picture Ford 351 windsor pictured other applications including buick v6 gm 5.7 LS1 6.0 LS2
Ever done any hp testing compared to cmi's or stainless marine 3's? Smitty
articfriends is offline  
Reply With Quote
Reply

Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
rssteiny
General Q & A
5
06-30-2008 07:49 PM
YOLO
General Boating Discussion
11
04-07-2008 06:07 PM
Rebel_Heart
General Q & A
4
08-13-2006 03:31 PM
JON242
General Q & A
2
07-07-2004 12:22 PM
MnFastBoat
General Q & A
1
07-13-2002 09:36 AM



Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On



All times are GMT -5. The time now is 07:57 PM.


Copyright 2011 OffShoreOnly. All rights reserved.