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Well the prior owner must not have properly oiled it.
How exactly would you (or others on this board) know if your MAF transfer function is being affected by turbulent air from engine fan wash? I remember some information from Pro-M about how hot, turbulent air from the engine fan can disrupt the MAF transfer function, and make the incoming signal to the ECU less-than-ideal. This, along with additional heat, is the reason the filter should be shielded from the engine. http://www.allfordmustangs.com/Detailed/583.shtml
Again never once had an issue or a driveablity problem or premature failures from this set up.
It has nothing to do with failures... Ah Christ, nevermind.
Dr. Paul, have you been a 1/4 mile track lately? Look underneath the hood of any EFI Mustang and most of them will have a conical filter, and most will not have a heat shield either.
I have made 23 passes in the last four days, and I own two EFI Mustangs. Moreover, I'd venture to say that I even know a thing or two about fuel injection. Just beacuse people do it, doesn't make it a good idea. There's lots of stupid sh!t installed on cars everyday. Paul.
If it's such a bad idea to run a conical, why does Ford and Shelby have a stock conical filter on their new Shelby GT-H model?
It's not a bad idea to run a conical. I'm saying it should be shielded from the engine and fan. Oh, and it appears Ford seems to agree:
Dr. Paul is right, no reason to run a conical without a shield. It's not like it's that hard to fabricate or buy one.
I noticed a big differance when I shielded my filter from my engine bay on my MarkVIII. I didn't have drivability issues that I was aware of though with the open filter. My LSE doesn't seem to be as hot under the hood but the car runs fastest in its 50+ passes with a cool engine bay, not so much a cool motor. As far as at the track most are cooling it down for the best times so running open isn't as much as a issue.
That's the GT500 engine bay, here is the GT-H engine:
LO AND BEHOLD! It's shielded from the engine!?!?!?! Why on earth would they do that?
Yep, I'm confused too.
When did I ever say it was a bad idea? I'm just saying your MAF transfer function will not be affected if you have no heat shield...
We have our Icebox cold air kit for our maf units. Works well. Does make a difference.
...and I'm just saying you're wrong.
Weren't you the one who said not ten posts ago that you've been running no shield for years, and so on and so forth? Why install one then if there's no reason to?
Yes I have been running sheildless for almost 10 years now. I always sell out of them before I grab one. When we tested these we did see a decent gain but I could care less to be honest, the small gain I saw wasn't impressive enough for me to take one from a potential customer. I just wish I could get a good reliable Metal guy to do these for us. My Guy does great work but TAKES FOREVER to do them.
Yeah so Owned.
I don't understand whats so hard for the guy to do Geno. Cut it out bend it.
Nothing is hard, I never said that. I said he takes forever, he does Government contract work and always shelves us for those. Sometimes he has a week or two turnaround for 50 or so (which I could live with) but other times it has been Months. Its a total of 3 bends and one hole, very simple to make yourself. Make a cardboard template the do it in metal. We made our first prototype from 22 mil cardboard.
Someone else has to be able to do it. The material is available at any HVAC supply house for pretty cheap.
I have them professionally done with a brake and laser cutter for the hole..etc. You can make them in your Garage at home but with basic tools I have no time to sit and make them all day. Like I said they are very simple so make your own and save the $$.
Yes but most can't do it. My design was more complex and I scrapped the idea as my time vs. what people would pay were likely to far apart. I could do a knock off of yours easily minus laser cutting, I have a break. I wouldn't do that unless you didn't want to bother with it anymore and even them I'd have to balance time vs. $$$.