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  #1  
Old 10-05-2008, 06:49 PM
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High EGT's

I just installed the Mods listed in my signature. Really wakes the truck up. Fried my Stock Trans. in a week. I'm wondering what i can do to reduce my EGT Temps on the Extreme setting. My EGT's rocket to 1400 deg. and I have to lift which stinks cuase it feels so good! Anybody got a cure.
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Old 10-05-2008, 06:52 PM
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Originally Posted by mjm97stroker View Post
I just installed the Mods listed in my signature. Really wakes the truck up. Fried my Stock Trans. in a week. I'm wondering what i can do to reduce my EGT Temps on the Extreme setting. My EGT's rocket to 1400 deg. and I have to lift which stinks cuase it feels so good! Anybody got a cure.
you need an intercooler.... either make one yourself or buy a kit... that will drop the egt's around 200 degrees

after that if it still doesnt go down enough you can do a water metch kit

let me know if you have any questions

-Raul
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Old 10-05-2008, 07:06 PM
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Raul, I guess the stock intercooler isn't quite up to the task?
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Old 10-05-2008, 07:08 PM
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Originally Posted by mjm97stroker View Post
Raul, I guess the stock intercooler isn't quite up to the task?
is it on the 97 or the SD? i guess i just looked at the first line and its the OBS lol... woops


if your seeing that high on the SD then theirs somethign wrong... what is your boost numbers when you get that high?
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Old 10-06-2008, 06:53 AM
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These temps seem way to high for TW tunes. I have worked my truck hard and the highest I have seen is 1200 degrees, it creeped up and just stood there never went over!! I think this is on his 03 by the way his sig is written. Do you have a CAT on that thing? I haven't seen a IC drop EGT's 200 degrees, 100-125 is the most I have seen from the Spearco unit, but I believe Raul. I would probably do the water meth first and see what happens, but I would also call Tony and see what he says! I wish you would have come on the forum sooner as I always recommend supporting the auto trans with a VB before adding any tunes. Hope you have a tuned VB in the new trans!!

NCH
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Old 10-06-2008, 07:55 AM
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Hi NCHornet, Yes this is my 03 SD. I'm making a steady 25-26 pds of boost when the EGT's rocket up. I'm not sure but I think if I stayed on the pedal the EGT's might even go higher. I don't have a CAT just an MBRP Muffler. The truck is an animal on the extreme setting. Blows "Tons O Smoke" jumps out of the hole hard and builds boost quickly along with the EGT's. I can only stay in it to about 70 mph. When I lift they instantly go down to 800 deg.
At road speed (70 mph) I'm running about 650-700 deg. in the extreme setting. All of the other tunes Stock, Daily, econo, Tow, Heavy tow never go above 1200 deg. no matter how long I stay on the pedal.

As far as the trans goes. I had spoke to a friend of mine who owns a trans shop about pre mod upgrades. He said don't bother the stock 4R100 trans and Torque converter is junk and since I had 77K on it it was just a matter of time. The only way to upgrade is to pull everything and replace the torque converter and a bunch of other internal parts. So he told me to run it till it blows. So, I did and it did. Only lasted 4 days to limp mode. Blown Torque converter. Bent valves in the valve body, etc... Mass carnage. New trans is in and I can tell the difference. It hooks up even harder. Must have been slipping a little before and I didn't notice in stock form.
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Old 10-06-2008, 08:31 AM
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First of all I totally disagree with your buddy. There are supporting mods you can do to help the 4R100 handle the extra ponies!! The stock VB is tuned for very long drawn out shifts. A tuned VB will shorten these shifts, which means the clutches aren't in contact nearly as long, which means less friction and less friction means less heat and Heat my friend is the biggest killer of a auto trans!! I have had DP tunes on my truck for years and I still have the stock trans and it's still going strong!! But I don't drive like a idiot either!!
I would call Tony, it could be his extreme tunning requires larger sticks and bigger turbo to be able to have usable horsepower. Because ponies that can't be used are worthless!! Jody rates his in HP #'s, and that is why I stopped at 120 race, as the 140 requires larger sticks and turbo and really big oil to really be able to use the tune and all the extra ponies!!

NCH
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Old 10-06-2008, 12:42 PM
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I don't know much about your year truck, but if it doesn't have an intercooler, you need one, and if it does, get a water kit. I've got a coolingmist kit, and I love it. My '01 would hit 1500deg when loaded, and after the water, it would barely hit 1200 with the same load
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