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 > Diesel vs gas......................

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carl2591

Garner NC

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Posted: 08/21/14 06:13am Link  |  Quote  |  Print  |  Notify Moderator

bkirkpatrick wrote:

7. Exhaust system to let it breathe.



I knew i was forgetting something.. and was actually watching a video on powerstrokehelp.com about installing new system yesterday.

You hear both side of the debate of replace air intake and exhaust system does gain HP and some say NOT..

not an expert but it seem if the engine can breath easier it will run easier = more MPH (i hope)

if you have ever seen a OTR truck the intake on them dudes is HUGH and the filter is massive.


Carl2591, Raleigh NC
2005 Airstream Classic 31D
2003 Ford F-250 SD, CC, 7.3L modded diesel machine
Every day is a new day with potential to be life changing.

wnjj

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Posted: 08/21/14 09:58am Link  |  Quote  |  Print  |  Notify Moderator

carl2591 wrote:

bkirkpatrick wrote:

7. Exhaust system to let it breathe.



I knew i was forgetting something.. and was actually watching a video on powerstrokehelp.com about installing new system yesterday.

You hear both side of the debate of replace air intake and exhaust system does gain HP and some say NOT..

not an expert but it seem if the engine can breath easier it will run easier = more MPH (i hope)

if you have ever seen a OTR truck the intake on them dudes is HUGH and the filter is massive.



That's because OTR truck engines are in the upper hundreds of cubic inches (~1.5-2x the size of our pickup engines). They need to move a lot of air.

carl2591

Garner NC

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Posted: 08/22/14 07:11am Link  |  Quote  |  Print  |  Notify Moderator

I was actually looking at the new cummins engine/ transmission package on a OTR trucking site and see they are like 14-15L engines with 500 HP and 1120 Ft.lb. torque at 1150 RPM..

Monsters for sure.. but i understand your point. My observation was the intake on the turbo was like 6" and on the 7.3 it like 2"ish coming from a 4" filter takeoff..

I see, as a non engineer type, how less restriction from front to rear of the engine could be nothing but helpful. I was looking at a MPRT? muffler system last night. they seem nice and at 400 buck a goodish deal.

marcsbigfoot20b27

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Posted: 08/22/14 10:22am Link  |  Quote  |  Print  |  Notify Moderator

carl2591 wrote:

did finally pull the trigger and gtt the "new" truck.

2003 Ford F-250 SuperDuty, 168K, Lariet, crew cab, 6ft bed, 7.3L diesel, fiberglass camper top already installed and painted to match, and bed liner that i might get rid of and go rhino type liner.

here is the craigslist post
http://norfolk.craigslist.org/cto/4582608909.html

the leather on driver has the usual scuffing like most, and there is some oil coming down back side most likely turbo pedestal needing o-rings and such.

In drive it back from virginia beach area it does ride nice with no load and the display was showing 18.5 MPG when i got it .. I reset it when i got fuel and it settled out around 20.5 on the road.. turning off AC it would creep up to 20.7 not bad..

Now planning to

1. replace diff cover with mag-hytek alum (which i now have)

2. I got a used 6.0L trans cooler to replace do as well replace trans fluid

3. pull turbo and rebuild with 360 bearing and new o-rings and

4. get something like the WW (not the ww2) just something to help boost a bit and turbo lag.

5. get a mild tuner for econ, tow and exhaust brake function, so advise on that is cool.

6. do the usual stuff like clean the exhaust gas tube thing, etc.

this will be sitting most of the day till about 2 yrs or so, so not in a big rush.

SO i am in the CLUB now.. high five.. [emoticon]


6.0L trans cooler 32 row from Rock auto..... HUGE!! $180
[image]
[image]

bkirkpatrick

Brea / Orange County, CA

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Posted: 08/22/14 10:42am Link  |  Quote  |  Print  |  Notify Moderator

What is the diff in size between that and the 7.3?
Check out this article.

I actually installed a Mishimoto heavy duty electric one on my 2003 7.3 but looking back on it, I should have gone with the 32 Row 6.0 cooler.

PS. Don't waste your money on a "larger" aftermarket transmission pan. They look cool but that is about it.

* This post was edited 08/22/14 10:56am by bkirkpatrick *


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Steakman

Calgary, Alberta

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Posted: 08/24/14 08:38am Link  |  Quote  |  Print  |  Notify Moderator

Quote:

..PS. Don't waste your money on a "larger" aftermarket transmission pan. They look cool but that is about it...


Well now lets see.

Small Pan - Std qty of Trans fluid
Large Pan - Dbl the std qty of fluid.

Small Pan - Steel - no cooling fins
Large Pan - Aluminum with cooling ribs.

Sorry my friend... IMO, there is a difference in keeping said fluids cool and for me that is a plus....I'll take my "larger" pan any day of the week. It never was about "cool" (can't really see the damn thing anyway..)

263,000 miles on my Allison - ZERO issues. Running Transynd

Stk


M'self and the Bride...of 32 yrs
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bkirkpatrick

Brea / Orange County, CA

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Posted: 08/24/14 09:34am Link  |  Quote  |  Print  |  Notify Moderator

Unless you are in extreme conditions, you simply don't need one. And your transmission pan is not they key to success with your Allison - it is an awesome trans to begin with. I had one on my 99 F370 7.3 and when I had my transmission rebuilt (3x), my trans guy said that it was simply more oil to try to cool and the fins don't work that well because of the heat from under the truck. A larger pan won't reduce the temp, a better cooler will. You can also read more here.

Larger Tranny Pans...

* This post was edited 08/25/14 03:48pm by bkirkpatrick *

blderman

Oregon

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Posted: 10/13/14 09:58am Link  |  Quote  |  Print  |  Notify Moderator

Its been proven over and over again that a larger transmission pan does nothing for cooling. Check out any 7.3 forum and you will find endless threads about how its a waste of time, fluid and money.


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majorgator

N. Central, FL

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Posted: 10/14/14 10:27am Link  |  Quote  |  Print  |  Notify Moderator

Steakman wrote:

Quote:

..PS. Don't waste your money on a "larger" aftermarket transmission pan. They look cool but that is about it...


Well now lets see.

Small Pan - Std qty of Trans fluid
Large Pan - Dbl the std qty of fluid.

Small Pan - Steel - no cooling fins
Large Pan - Aluminum with cooling ribs.

Sorry my friend... IMO, there is a difference in keeping said fluids cool and for me that is a plus....I'll take my "larger" pan any day of the week. It never was about "cool" (can't really see the damn thing anyway..)

263,000 miles on my Allison - ZERO issues. Running Transynd

Stk

I have a tru-cool max trans cooler, and my trans temp when heavy towing doesn't get over about 180/190 degrees down here in the hot humid climate of FL. My truck is a '96 F350 7.3L. No larger pan required. You might gain a little bit more cooling effect in the higher temp ranges, like above 240/250 degrees, but really, you should never be that high anyway. The biggest difference is always made when using auxiliary coolers.

bkirkpatrick

Brea / Orange County, CA

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Posted: 10/14/14 01:46pm Link  |  Quote  |  Print  |  Notify Moderator

majorgator wrote:

Steakman wrote:

Quote:

..PS. Don't waste your money on a "larger" aftermarket transmission pan. They look cool but that is about it...


Well now lets see.

Small Pan - Std qty of Trans fluid
Large Pan - Dbl the std qty of fluid.

Small Pan - Steel - no cooling fins
Large Pan - Aluminum with cooling ribs.

Sorry my friend... IMO, there is a difference in keeping said fluids cool and for me that is a plus....I'll take my "larger" pan any day of the week. It never was about "cool" (can't really see the damn thing anyway..)

263,000 miles on my Allison - ZERO issues. Running Transynd

Stk

I have a tru-cool max trans cooler, and my trans temp when heavy towing doesn't get over about 180/190 degrees down here in the hot humid climate of FL. My truck is a '96 F350 7.3L. No larger pan required. You might gain a little bit more cooling effect in the higher temp ranges, like above 240/250 degrees, but really, you should never be that high anyway. The biggest difference is always made when using auxiliary coolers.

X2

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