build thread: year of the 7.3s

dentexpowerstroke · Mar 31, 2014

Motor is back in the truck. Was a little too late to try to get it started. Will get up in the morning and get it going. Hopefully it runs right, as it is I don't think it'll be ready for the ennis nhrda race. I'm a little sketchy about having fresh hgs on a truck that has this much potential and pushing it anytime soon. Tho the guys that know me all know it'll be at wot by the end of the week for some reason.

lincolnlocker · Mar 31, 2014

Heat cycles, heat cycles, heat cycles.. keep boost low, just enough driving to get it to operating temps.. the more you can do that the better its gonna be.

live life full throttle

hucorey · Mar 31, 2014

Yep, you can easy have 20 heat cycles on it in a few days.

ghohouston · Mar 31, 2014

Ill gladly drive it to and from work this week if you're buying diesel lol. I swear ill keep my foot out of it

dentexpowerstroke · Mar 31, 2014

I can probably get a good amount of heat cycles in it over the next 2 weeks before ennis, but tuning wasn't 100% before it let go. Getting the heat cycles in it wouldn't leave much time for tuning before the race.

hucorey · Mar 31, 2014

Just leave the keys in it bud. I'm sure there's volunteers to put some cycles on it while ur at work.

lincolnlocker · Mar 31, 2014

dentexpowerstroke said:
I can probably get a good amount of heat cycles in it over the next 2 weeks before ennis, but tuning wasn't 100% before it let go. Getting the heat cycles in it wouldn't leave much time for tuning before the race.

Remote start.. let it run then cool off then start it up.

live life full throttle

dentexpowerstroke · Mar 31, 2014

That's my plan. Let it warm up and cool off before work then between driving it to and from work and lunch it should get 4-5 heat cycles a day

lincolnlocker · Mar 31, 2014

dentexpowerstroke said:
That's my plan. Let it warm up and cool off before work then between driving it to and from work and lunch it should get 4-5 heat cycles a day

Keep boost very low.

live life full throttle

dentexpowerstroke · Apr 1, 2014

That's not too hard with the 75mm just cruising to and from work it won't get over 10psi. I figure a week of daily driving it I can probably get 25-30 heat cycles into it.

lincolnlocker · Apr 1, 2014

dentexpowerstroke said:
That's not too hard with the 75mm just cruising to and from work it won't get over 10psi. I figure a week of daily driving it I can probably get 25-30 heat cycles into it.

Good deal.. hope that cures it.. ive seen guys with fire ringed heads blow gaskets and some go out upon first startup and hone on the bich and be just fine.. not necessarily all in the 7.3 world either.. well I think there is one video of a red super duty 7.3s break in run thats floating around..

live life full throttle

smokinstroker92 · Apr 1, 2014

If they blew head gaskets that were fire ringed something was done incorrectly. They have a steel ring sealing combustion if machine work is done right and installed correctly they won't blow

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Dieselboy. · Apr 1, 2014

Man, when I broke in the ol girl I did a bit of farting around for a few hours. Dumped the oil and cut the filter open (fresh rebuild).

Fresh oil and filter, drove 20 min and hooked up to 8500lbs and found a 3 mile long 8% grade and let her eat at 2800rpm the whole way up...

Did that run a few times that night lol.

Gotta seat them rings

01platinum · Apr 3, 2014

Wish I could find the video of Elmo's Orange truck engine break in before DHRA in Baytown. Was awsome. Started the truck backed it out of DI and did the biggest burn out ever. Haha Then sled pulled and drag raced it the next day.

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lincolnlocker · Apr 3, 2014

01platinum said:
Wish I could find the video of Elmo's Orange truck engine break in before DHRA in Baytown. Was awsome. Started the truck backed it out of DI and did the biggest burn out ever. Haha Then sled pulled and drag raced it the next day.

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Ive seen that vid! I think hrt has a motor break inn on a transfersled like that lol.

live life full throttle

littleredstroker · Apr 3, 2014

Never understood the whole " New hg" scare...motors are rebuilt, bought to warm up temps, then have the tits poured to them for hours... If you are running 100 psi that's one thing... But 40-50? Idk

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littleredstroker · Apr 3, 2014

Or for that matter why people are terrified of pulling heads on 100k mile motors for fear of breaking the " seal"

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Dieselboy. · Apr 4, 2014

http://www.youtube.com/watch?v=roVRMIG36Vk

Dex's vid too boot

dentexpowerstroke · Apr 4, 2014

littleredstroker said:
Never understood the whole " New hg" scare...motors are rebuilt, bought to warm up temps, then have the tits poured to them for hours... If you are running 100 psi that's one thing... But 40-50? Idk

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Well the truck has seen upwards of 70 psi with 300/200s, never saw what it'd fully do with the 400s but it made 60psi on 7 cylinders. I'd also rather not break it as quick this time, so I'll baby it and get some heat cycles. It'll probably get pushed more in the next week. I want to see how it does before I take it out to run in an 11.9 index and get beat out quick.

Powerstroke Cowboy · Apr 4, 2014

i would not let it Idle to do heat cycles. You need to get them rings seated right.

Work it a little that one of the best things you can do to help seat the rings.