464rwhp and 551rwtq - Page 2

464rwhp and 551rwtq

This is a discussion on 464rwhp and 551rwtq within the F150 Ecoboost Performance forums, part of the F150 Ecoboost Garage category; Originally Posted by Boostking You know, I dont really know where the 450 mark really came from. There are so many variables that can impact ...

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  1. #11
    Ecoboost Master Envious's Avatar

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    Quote Originally Posted by Boostking View Post
    You know, I dont really know where the 450 mark really came from. There are so many variables that can impact longevity, outside of the tune itself.

    That said, I've been driving my truck at about 430whp for the last year (since the turbos). Knock on wood, nothing has kaboomed yet.

    Some motors might not make it to 400 depending on many factors, and some may live at 500+ for a while. Proper maintenance, quality tunes and parts, and a little bit of knowledge should keep most motors going for a long while.
    Very true. And who knows, since the tuning knowledge is LEAPS and bounds over what it was say 2 years ago. Who says it isn't a possible LSPI event from so much boost down low. I know when we first had these trucks and tunes a few years ago I had a few tunes with a lot of boost down low. Even from the same tuning company that has changed. Maybe they had 450 and it took out their engine and they blamed it on the power levels. Even the oil is now targetting LSPI quenching with SN+ and dexos Gen2.
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  2. #12
    Ecoboost Veteran tvsjr's Avatar

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    Quote Originally Posted by mass-hole View Post
    I wonder. I also wonder where the 450rwhp safe limit number came from. We all accept it as gospel but has anyone really pushed beyond it and lost a motor? The transverse ecoboosts go well beyond 450.

    People lose stock motors somewhat frequently so whose to say.
    Problem with the transverse 3.5EBs is the rest of the driveline. I've got a 2017 Explorer Sport as well (dual 3.5EB family), but I haven't done anything to it because a. wife's car and b. I'm pretty sure they made the PTU out of glass. They seem to KB way too often.

  3. #13
    Gold Supporting Member sleipnir's Avatar
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    Quote Originally Posted by snakebitten View Post
    I meant Ford QC Matt. Not tune-guru QC. <img src="https://www.f150ecoboost.net/forum/images/smilies/smile.png" border="0" alt="" title="Smile" class="inlineimg" />

    In other words, when you go to the dealership, those 100 Ecoboosts in inventory are NOT all equal. Lol



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    Hit the nail on the head Bruce! I had a OEM long block I ordered from Ford and the tolerance alone would've cause the motor to blow within 5 miles. Ryan measured .030-.036 of clearance on the rods and the clearance should've been half of that! Ford has some poor QC process
    Envious and snakebitten like this.
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    Ecoboost Sr Member Fstrnyou's Avatar

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    .030-.036 WTF rod clearance? Please explain.
    Unless you meant 0.0030-0.0036 rod bearing clearance. Then ya. That's a bit large. Lol.

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    Gold Supporting Member sleipnir's Avatar
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    Quote Originally Posted by Fstrnyou View Post
    .030-.036 WTF rod clearance? Please explain.
    Unless you meant 0.0030-0.0036 rod bearing clearance. Then ya. That's a bit large. Lol.
    I fat fingered that hard. Yes sorry 30 thousandth was the clearance. Here a video where you can here it clicking

    https://youtu.be/jDs25nwMCdI

    https://youtu.be/ddRLdg0HP1g
    2012 4x4 Lariat 3.5 || 3.73 with e-locker || Full Race Turbos || Full Race Downpipes || CRP Manifolds || AFE Stage II Intake || AFE Charge Pipe || CPE Intercooler || Tubrosmart BOV || Retrofit Headlights || Tifosi Performance Special Touch || "Secret Sauce" Tuned || MSD Blaster Coil || Racho RS9000XL Rear Shocks || Fox 2.0 Coilovers || Morimoto LED Fogs || More to come

  7. #16
    Ecoboost Sr Member Fstrnyou's Avatar

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    If 30 thousandths was the clearance, then you typed it right (0.030).

    Rod side clearance isn't a spec I'm familiar with. To be quite honest, when I built the engine for my Mazdaspeed6, I didn't even check rod side clearance. Shame on me.

    Found this in a Google search.
    https://www.enginelabs.com/engine-te...the-confusion/

  8. #17
    Eco-Beast mass-hole's Avatar

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    464rwhp and 551rwtq

    Quote Originally Posted by tvsjr View Post
    Problem with the transverse 3.5EBs is the rest of the driveline. I've got a 2017 Explorer Sport as well (dual 3.5EB family), but I haven't done anything to it because a. wife's car and b. I'm pretty sure they made the PTU out of glass. They seem to KB way too often.
    Yeah ive heard the awd poops the bed when you put to much torque through it.

    My point though, is that the engines seem to be able to handle it, why wouldnt the F150.
    Last edited by mass-hole; 05-17-2019 at 07:42 PM.
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  9. #18
    Gold Supporting Member Blown F-150's Avatar
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    Quote Originally Posted by mass-hole View Post
    Yeah ive heard the awd poops the bed when you put to much torque through it.

    My point though, is that the engines seem to be able to handle it, why wouldnt the F150.
    I think there are a ton of factors, but transverse Ecos are moving lighter vehicles and and smaller/lighter tires, so less load.

    Who knows, maybe other drivetrain items crap out before they do with our trucks.




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    I can just imagine how much fun it would be to have the power under my Big Heavy F150 on 35's under the hood of something a couple of thousand pounds lighter and lighter unsprung pieces on all four corners.

    It'd be a rocket!

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  11. #20
    Ecoboost Regular mattr66's Avatar

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    My SHO is lots of fun...

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