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Mr overkill
01-16-2006, 06:47 PM
i just recieved my header from tu and am unsure to where to install the egt Bung



my manifold from cindy has it drilled at the turbo flange area but i am being told to install it at the #4 tube because that cylinder always runs the leanest



input guys before i start drilling lolol

Alex

cordes
01-16-2006, 07:02 PM
Many of the guys were talking about putting the probe in the #3 cyl. as that was the hottest they observed. I believe that was with a stock manifold though. If it were me, and I had the means, I would run a 4 probe gauge. Otherwise, I would probably go with the #3 cyl like I did with my stocker.

Mr overkill
01-16-2006, 07:04 PM
hum never heard of the #3 run hotter then the #4 gotta check into that

cordes
01-16-2006, 07:08 PM
hum never heard of the #3 run hotter then the #4 gotta check into that

If you do a search on TD.com there will be a good thread about it. Frank will probably chim in here soon, as he was one of those with 4 probe setups who experienced the #3 hotness IIRC.

Mr overkill
01-16-2006, 07:24 PM
cool trying to weed away from td.com lolol 2 many babys hehe

Frank
01-17-2006, 08:22 AM
Nice one cordes. LOL.

http://www.squirrelpf.com/gallery2/d/1946-2/Img_2672.jpg (http://www.squirrelpf.com/gallery2/d/1945-2/Img_2672.jpg)Yeh, myself and a few others have observed that #3 is hottest. I am unsure of other's manifolds, but mine was experienced on the TU Stainless header. Here is a picture of my setup...


Frank

mech1nxh
01-17-2006, 08:53 AM
Nice one cordes. LOL.

http://www.squirrelpf.com/gallery2/d/1946-2/Img_2672.jpg (http://www.squirrelpf.com/gallery2/d/1945-2/Img_2672.jpg)Yeh, myself and a few others have observed that #3 is hottest. I am unsure of other's manifolds, but mine was experienced on the TU Stainless header. Here is a picture of my setup...


Frank

what were the readings??.....with respects please . interested in trying to
project NOX readings from temp probes NEAR the actual combustion events
thx in advance

Frank
01-17-2006, 10:13 AM
My calibration was a little hot because of the week timing from other issues with the car. Typically if I saw 1400degF, then #3 was reading 1470degF. It got up to 1600degF one time. I personally like a little richer mixture and would probably end up with high 1400degF going thru the traps.


Frank

Austrian Dodge
01-17-2006, 03:23 PM
didn't you have problems with that probes hitting the starter?
when i had my probe installed on the bottom of the collector (stock manifold), then the egt probe hit the plus of the starter.... I had to drill and tap the drivers side of #4 runner

Frank
01-17-2006, 03:36 PM
They clear the starter because of the TU header being a lot different.


Frank

Mr overkill
01-17-2006, 05:49 PM
thanks frank i will be running a tu header so i didnt want to drill in the wrong place

mech1nxh
01-18-2006, 10:59 AM
My calibration was a little hot because of the week timing from other issues with the car. Typically if I saw 1400degF, then #3 was reading 1470degF. It got up to 1600degF one time. I personally like a little richer mixture and would probably end up with high 1400degF going thru the traps.


Frank

now THAT is food for thought....as the coolant outlet is at the #3 cyl
and the "mod " we know and love is for #1.......with a 180 deg crankshaft
could our boost / power limitations be simply heat transfer related ??
lots of folks like 11:5 to one as a min afr....but 11:5 comes very close to rich missfire, as CO2 is 9-10% HC is lower but CO is through the roof.
as CO is a partially burned fuel (read incomplete combustion) measurement, seems keeping
the heat energy in the combustion event and moving it to the turbo(with a slightly leaner mixture , and the associated power gains)
would pay big dividens...yikes I think I confused myself....
and as always, opinion humbly submited with respects to all

slasky
01-18-2006, 11:13 AM
I had mine drilled and tapped about 2 inches from the top of runner #4. I went to put the probe in and it was too long:banghead: . I had to use the clamp instead.

Aries_Turbo
01-20-2006, 01:17 AM
thanks frank i will be running a tu header so i didnt want to drill in the wrong place

Woah just a min..... the omly reason Franks clears the starter (barely.... it touches the heat wrap thats on the starter) is cause he is using VERY low profile probes.

DOUBLE CHECK BEFORE DRILLING.

Brian

Aries_Turbo
01-20-2006, 01:20 AM
Nice one cordes. LOL.

http://www.squirrelpf.com/gallery2/d/1946-2/Img_2672.jpg (http://www.squirrelpf.com/gallery2/d/1945-2/Img_2672.jpg)Yeh, myself and a few others have observed that #3 is hottest. I am unsure of other's manifolds, but mine was experienced on the TU Stainless header. Here is a picture of my setup...


Frank

it has less to do with the manifold and more to do with the coolant stagnation in the head. It also has to do with power level. when you are running less power, #3 is hottest... when you really start cranking the power, #4 gets hotter.

Brian

SwiftTech
01-20-2006, 01:23 AM
Hey Frank would you mind sharing where you got your probes from?

Frank
01-20-2006, 07:48 AM
I got the probes from here:
http://www.smcenterprises.com/egt.htm

I had bought the meter, but they suck.


Frank

Mr overkill
01-22-2006, 12:47 PM
ok so i cant install it at the cylinders close tot he head because it will be in the way so then i guess im stuck at the turbo flange again ? the header is coated from chris so there shouldnt be 2 much of a temp drop also running forged pistons

Frank
01-22-2006, 02:31 PM
There is tons of room to install it on the bottom of the header... look at these pictures...

http://www.squirrelpf.com/frank/gallery/car_daytona/Img_2672.jpg
http://www.squirrelpf.com/frank/gallery/car_daytona/Img_2674.jpg
http://www.squirrelpf.com/frank/gallery/car_daytona/Img_2742.jpg

more pictures here! http://www.squirrelpf.com/frank/gallery/car_daytona/

Mr overkill
01-22-2006, 03:04 PM
yea frank but arnt you running short probes ? i am running the autometer Egt one and i WISH i had the money to do yoursetup but cant so thats why i want to put it where its as best as it can be. from your pics if i put it in the #4 runner by the flange (head) Even the #3 without the starter being in the way

is that motor still on the stand ? if so do you have a starter laying around HEHE

P.s what turbo are you running

thanks

Frank
01-22-2006, 03:08 PM
I have it in the car now. With 1/3" worth of wrap around the start, the probe is just beginning to touch.. barely. You can also put it into the side of the tube, not under it.


Frank

Aries_Turbo
01-22-2006, 05:02 PM
hey, there's my cat in pic #2 lol.

Brian

Mr overkill
01-23-2006, 05:57 PM
hummm didnt think of going into the side of the tube

SpoolinGLH
05-05-2006, 02:03 PM
Frank can you post those pictures with the probe in the TU header...ASAP lol... those pictures arnt working.. thanks man

Frank
05-05-2006, 02:28 PM
Ahh. Havent been on this thread in a long time! THere you go. ;)

SpoolinGLH
05-06-2006, 10:05 AM
cool thanks frank...those low profile probes that you have are nice