DL -
I'm flattered that you put me in the category of those guys: but I don't really belong. My experience with these modular motors is limited...heck this is the first ford and first automatic tranny I've ever owned! I have had a fair amonunt of experience building 60's and 70's Chevy and Chrylser "muscle car" motors. Personally, I think these motors are not designed for what SVT has created. With that said, alot of motors are like that but it hasn't kept people from hot rodding.

As far as JDM being the only one to blow a motor, I'm not sure of that. I said a few months ago that I think this next racing season
will tell us alot about boost limitations and stock short blocks. I hate to say it, but, I don't think any of these stock motors are going to tolerate these 5+1 or 6+2 pulley combo's for very many miles.

Pinging will melt a spark plug or piston dome or whatever; I would not look at that as an indicator of when you will throw a rod.

The rods breal from stress which will be caused by two primary factors; rpm's and and the increased forces associated with making more HP.

I think there is going to be a real lucrative market for 5.4 short blocks that have been properly prepared.

BTW - Good luck with the headers; I like mine. I've got before and after dyno sheets if you want to know what to really expect.

 

You guys running 5/6lb pulley are making a bit more then 14/15psi.

My boost gauge is extremely accurate and has a peak hold option so I can monitor where it its at REDLINE !!!!!!

I took this pic last night when I got home, the air was great here last night so you tell me


Bob

 

Hey NeedFourSpeed:

Your Welcome,

Since you are one of Neil Minor's bud's, you have Mike's Long tube headers, and you go to the Dyno, thought you might have some inside info to share..

A friend of mine has blown his motor and has taken it completely apart to try and figure out what happened. The only conclusion he has come up with is the high boost. He thinks that the high rate of speed he drives 85-100 mph most of the time, and putting a lot of miles on his truck daily have all contributed to his rods failing. I'm probably going to get in trouble for this one, but has this ever stopped me before, NOT. (But, Mostly he thinks it was the high boost). No it's not a tuner we know, just a fellow L owner that has used a lot of mod's.

Then again, there are a lot of people running high boost with no problems, yet.

I think your right about there is going to be a real lucrative market for 5.4 short blocks that have been properly prepared. I would probably buy one to be on the safe side, If they were available at a fair price, not the typical high mark up.

Shoot me an E-mail, I'd like to talk to you about the Dyno results.

thanks

 

First off,
When you add another 4-8# of boost you are adding more pressure to the top of that piston on the down strok. There is where the rod is going to break.

Every engine component has it's breaking point. Some are reaching that now with enough mods. The tuners don't have durability engines testing various combinations to see if the engine can hold up. They can sell you all the mods, but buyer beware.

I'm not beating up the tuners here. I know they aren't the big three and don't have the cash to do this. This is where we should pull together and start gathering mod combinations and Pulley sizes of people who have lost engines, their data and under what conditions. Shift points data on tranys.

This should help us get a good idea of the mod combinations that could be leathal to stock motors. Maybe we can get a designated thread going like the one we had for the intercooler leak. Just my .02

 

Hey Thor01:

I was thinking the same thing earlier, but figured a lot of people wouldn't post that they had blown their engine and what mod's they had.

If the guys that blew their engines would create another user name, phony locations, etc. Then post all their info about their blown engine, nobody(especially Ford) would know who they are, except the moderators and they are not allowed to share the info with anyone. Maybe we could all learn from it.

OK, I know probably everyone who has blown their motor has viewed this thread, so one of you guys that have blown your motor, start a new thread and give us the details, accurately, don't hide anything.

thanks,

 

DL & THor1,

I just started a thread, lets see what happens....

 

DL,

You got a little egg on your face on this one. Just remember these motors can blow for a lot of reasons and ALL the tuners have customers that have experienced this. If there is a weak rod naturally it will fail. JDM replaced the motor and put the same mods (and probably then some) with no failure SO FAR. They have made numerous passes and quicker ones to boot.

I agree that too much boost is probably a bad thing.

 

Hey LTNBOLT:

How do you figure I got a little egg on my face on this one. I don't see it.

I stated tuners personal truck, maybe you should re-read my previous post, seems like everyone else knew what I was talking about.

You believe the same mod's for JDM?? You said it (and probably then some).

 

You made out like it was the tune (maybe the L owner/chip's fault). You were insinuating that this would not happen with your tuners stuff but it did. You weren't anticipating Bubbalightning making that post but he did. In my book that's egg on your face. This is just a little lesson in humility. When you post little jabs at other tuners sometimes it comes back to bite you in the a$$. You might not notice that you are doing it but other people do.

Like I said before ALL the tuners have had customers with blown motors. They are all good tuners but ***** happens no matter what the case may be.

 

Hey LTNBOLT:

What I meant, and I think most people understood, was that all the chips may start pinging and the L owner who has this happen probably doesn't recognize it and stays @ WOT causing the motor to blow. It wasn't meant to be directed to one specific tuner.

I know bubbaLightning, his post was directed to ICULOKIN.

This is just a little lesson in humility, Whatever. I think I have been pretty fair with all the tuner's "lately" and have not directly attacked any of them.

I know, some people just can't let it go...

Have a nice day,
DL

 

LTNBOLT,

I think DL saying L owners/chip's fault meant the LIGHTNING owner not a tuner. Saying a L owner maybe didnt let off when a problem arose or something...

 

sounds like somebody is getting upset for no reason.

 

In my case, I can't let go of something I never had.

Have a good one.

 

Some guys are happy with 13's

Some guy's are happy with 12's

Some guys want even more...

Some guys should expect big problems in the future and start saving their benjamin's to pay for it regardless of which "mail order tuner" they use.

If I were so inclined to add 8-10lbs of boost over stock, I think it would be wise to have a DYNO tuned chip for MY truck. Not one that speculates about gas and it's oxygen levels, elevation changes, overall environment, etc. I don't care how "safe" they feel they might have it, there's still very little margin for error. BTW, I don't live anywhere NEAR any of the tuners aand I don't feel most guys don't either. It might be something that takes a few 1/4 mile passes to show up.


My 1/5,000th's of a $100 bill

 

Corner,

Very true, take two trucks with the same mods. They made need 2 totaly different programs to keep them safe!! Very well said....