Boost
- Thread starter J Ski
- Start date
Disclaimer: Links on this page pointing to Amazon, eBay and other sites may include affiliate code. If you click them and make a purchase, we may earn a small commission.
I do not, but should be the same as a 2014 F150 with the first generation 3.5TT.
powerboatr
Full Access Members
i have read, but cannot confirm..
0 to 14 psi normal driving with the ability to push 25lbs under WOT . but i think 15 is the top limit on ecm...??
but i have never seen it in real life. we need a boost info thing on the mft, truck ecm clocks it, so we should be able to have it as an option
my 6.0 ran 25lbs easy
my bus can hit 35 easy as pie to and runs 20 lbs normal driving flat roads
0 to 14 psi normal driving with the ability to push 25lbs under WOT . but i think 15 is the top limit on ecm...??
but i have never seen it in real life. we need a boost info thing on the mft, truck ecm clocks it, so we should be able to have it as an option
my 6.0 ran 25lbs easy
my bus can hit 35 easy as pie to and runs 20 lbs normal driving flat roads
Last edited:
AllBoostNoEco
Full Access Members
Thought I'd chime in here and help out. My '15 stock showed 18 PSI on my SCT X4 running 93. With a tune, it now makes 22 regularly.
jeff kushner
Full Access Members
I think it would be quite interesting to see where the waste gates and blow off valves are set. Like Powerboatr, I've read numbers in the area of 14-15 or so.....but nothing really concrete...just what people have thought which is kind of strange since even though I own a turbo bike(runs at 18PSI) and a Supercharged car(11PSI) I can't "feel" how much boost my truck's turbos are producing.
I do have a feeling that A. They CAN produce a lot more than the Boost controls are set for and B. that the ECM is logging the boost pressures but we would need a techie like Loki to dig that up for us!!
While I know that I could easily increase my boost pressures and pick up some "free" HP but just know that nothing is "free" so there will most certainly be increased engine heat to shed and if any of us goes too far, possible damage to the lower end as some of the hopup shops have found when taking the power past the 420HP mark.
Here's the only shot of the 3.5's crank I could find and it reveals insert bearings (for both rod & mains) instead of split ball or rollers. We press many of the cranks on the older engines so they can use regular ball bearings but due to the forged(massively stronger) crank on the 3.5EB, regular bearings can't be used because the races would be kinda hard to slip a bearing past the porkchops<LOL>!
Now I'm not going to knock inserts correctly done. Honda has built empires in both auto and motorcycle engines on insert bearings coupled with high oil pressure and as long as that pressure remains, they are an excellent choice...but if the oil stops....or the power exceeds the crush strength of the inserts, it could be bad, real bad...(read as:expensive). There are better-than-stock replacements out there but you all know what's involved to swap them but an "extra" 20-30HP should be attainable without too much worry just by raising the boost pressures a few PSI.
jeff
I do have a feeling that A. They CAN produce a lot more than the Boost controls are set for and B. that the ECM is logging the boost pressures but we would need a techie like Loki to dig that up for us!!
While I know that I could easily increase my boost pressures and pick up some "free" HP but just know that nothing is "free" so there will most certainly be increased engine heat to shed and if any of us goes too far, possible damage to the lower end as some of the hopup shops have found when taking the power past the 420HP mark.
Here's the only shot of the 3.5's crank I could find and it reveals insert bearings (for both rod & mains) instead of split ball or rollers. We press many of the cranks on the older engines so they can use regular ball bearings but due to the forged(massively stronger) crank on the 3.5EB, regular bearings can't be used because the races would be kinda hard to slip a bearing past the porkchops<LOL>!
Now I'm not going to knock inserts correctly done. Honda has built empires in both auto and motorcycle engines on insert bearings coupled with high oil pressure and as long as that pressure remains, they are an excellent choice...but if the oil stops....or the power exceeds the crush strength of the inserts, it could be bad, real bad...(read as:expensive). There are better-than-stock replacements out there but you all know what's involved to swap them but an "extra" 20-30HP should be attainable without too much worry just by raising the boost pressures a few PSI.
jeff
