Engine/Transmission (1998.5 - 2002) Whats better: Scotty Air II or the Nanofiber BHAF?

[PRout]

Better in what way right??

Well, this is bugging the ... outta me. . I keep going back and forth between the two cleaner setups and am having a hard time deciding on which one to stick with.

I dont want to cut the 4. 5" hole on the cowl for the Scotty (so thats probably my answer right there). But the Scotty is supposed to lower EGT's by so much bla bla bla because its pulling air from the outside. . (I'm not seeing that difference in my testing).

The dry Amsoil 4510 nanotype filter installed like a BHAF just seems to flow better, period. . And, Egt's are around the same, maybe "slightly" lower (maybe 25 degrees).

I notice time to shutdown is less with the Nanofilter as its usually already at or close to 300* after parking.

Overall top boost PSI is slightly higher (1. 5 psi) with the Nano, and spoolup is undeniably quicker with the nano. Its just got less restriction - period. That must mean less unburned fuel and better mileage right??

Maybe the UNI & foam filter in the Scotty is a little too restrictive, and is there something that is less restrictive for the Scotty that still filters well?

Lets face it, the Scotty Air II is a classic. It also fits well, and doesnt look cheezy (no micky here). Then you have this Big blue nanofilter intake hoseclamped on the end of an accordian hose, which in my opinion looks micky mouse at best. . But it works better...

Maybe I should just start gettin more into "Disney" and put the Scotty to rest once & for all. .

But how about towing???? Will someone tell me the Scotty will improve towing EGT's just so I can keep it in there?? Havent tried that angle yet. . Oo.


Edited: Probably should have posted this in the Products/Accessories - Engine and Transmission forum . Moderator, pls move it if you think its necessary thanks.

 

[Gary - K7GLD]

My own, personal, contributions on this subject usually generate LOTS of heat from the aftermarket "Cool Air" makers, sellers and users... #@$%! :-{}



BUT, based upon my own fairly long and detailed tests (and several others I have read!), I found that typical down-the-road underhood temps in the aircleaner area rarely exceed 10 degrees difference from outside ambient - and usually closer to 5 degrees.



AS to the "Ram Air" effect some claim, other related tests have shown *MAYBE* a 1/2 PSI boost - and only THAT at pretty high and untypical road speeds...



SO, guys contemplating buying/installing those systems need to ask themselves if the nominal 5 degrees and 1/2 psi are REALLY gonna give them their $$$ worth!



Based upon my own test findings, and those of others who did their own testing, here's what I use, the Amsoil 4510, and am totally satisfied with - it was cheap, easy to install, and NO firewall or other hole drilling!



#ad




And yes, I use mine for towing - can't give any before/after temps between this setup and the OEM, or the other aftermarket stuff - but my towing EGT is totally acceptable with the other power mods in my sig. "Mickey Mouse"? Well, beauty is in the eye of the beholder - and *I* sure don't have any "appearance" issues with my setup!



YMMV!

 

[PRout]

Well, I have to agree with you Gary. I guess I just "Like" the Scotty Air box's appearance & it's "classic" value more and do kind of like the less noise level while in "hush mode".

It just always bugs you when you know you can improve upon what you have without any negative affects in this case by using the 4510 with the new technology nanofiber material.

I was kind of trying to pursuade myself that maybe when towing heavy, desert, A/C on, etc, that the underhood temps might change the conditions enough to have the Scotty come out on top and justify its existence (in my rig - not everyone's). Unfortunately (for me :{) you probably do more towing than I do, so if you're not seeing the situation changing enough while towing then I have less justification yet. .

Admittedly, I kind of overstated the "cheezyness" factor of the nano quite a bit, and your setup looks just fine. Hey, "Simple & sweet". .

I only have one thing to add that may give you a small tip. . I found my local Home Depot actually has small pkgs of smaller "Blue" actually matching bungee cords that really looked pretty slick with the nano. If you don't find any at your local H. D. PM me your address and I'll send you a couple. . They actually looked pretty decent .

Thanks again for your input as always and its looking like the nano 4510 is going to be the keeper in my rig also. .

Unless any better arguments come up, this one can probably be considered "Game Over". TY

 

[Gary - K7GLD]

Thanks for the tip on the cords - I'll look for them when I get into the stores next time.



Actually, there's not a THING wrong with most of the aftermarket air intake setups, as compared to and replacing the OEM setup - it's just that the actual, real life benefits for the average user are sorta oversold/overhyped as far as actual improvement over cheaper alternatives are concerned - I'd rather do what I did, and use the money saved on other items...



To each his own!

 

[tlgdiesel]

If you dont drill the hole in the firewall for the ScottyII then your not getting the full benifit and it probally isn't worth having. I went from a stock K&N drop in to a ScottyII with an AFE filter in it and gained 3. 5lbs of boost and about a 150 degree egt drop. This is on a 12v with the hole in the firewall. However with the UNI filter in the ScottyII it was much less change about . 5lbs boost and around 50 degrees. Just wanted to share my numbers.

 

[Gary - K7GLD]

I went from a stock K&N drop in to a ScottyII with an AFE filter in it and gained 3. 5lbs of boost and about a 150 degree egt drop.

YUP - that's where the difference is usually most obvious and impressive with the aftermarket intakes - the OEM airbox, regardless of element used, is a BIG restriction to airflow.



BUT, going from something like the BHAF or Amsoil/Donaldson 4510, to the aftermarket systems, the difference becomes far less pronounced. The largest single improvement the aftermarket systems provide is the element itself, regardless of the accompanying boxes and ducting that goes with them!

 

[OL RATLR]

Scotty 11 cut the hole. :-{}

 

[PRout]

Thank you for all the input above. . Looks like the Scotty just went in the classifieds.

To be fair...

Scotty 11 cut the hole. :-{}

Exactly! The beauty of the Scotty shines when you :-{} and whip out that 4-1/2 incher and start cuttin". If you can deal with that intake noise Scotty is hard to beat (as long as you dont need air for twins).

Yep, Its NANO for now. . Amsoil 4510 baby "dry" element and 10 extra degrees of underhood temps are :-{}Oo.





Nothin. :-laf

 

[rweis]

I have a Scotty II & hole cut.



I like to cover the speedometer and rpm an drive just by the turbine sound. Fun diversion and you get very accurate mph per sound after a while.



I like mine. I change the filter every year to a new one (ie do not oil the old one). I need to pay forward them to a couple of guys (ie they are already taken).



Very satisfied with my Scotty II.



Bob Weis

 

[PRout]

Thanks Bob, Gary, tgldiesel, OL Ratlr, and a good friend at work also (arlewis) who runs a Scotty 2 and likes his as well. .

Seems like the bottom line on the Scotty 2 is. .

A. Cut the cowl hole.
B. The UNI can be more restrictive than the AFE element. (May mean better filtration - but thats for another debate).

Guess this has been hashed a few times before on the threads but sometimes you have to see it for yourself. I'm sticking with the Nano (and the cute little blue bungee cords) :-laf:-laf

 

[Gary - K7GLD]

Thanks Bob, Gary, tgldiesel, OL Ratlr, and a good friend at work also (arlewis) who runs a Scotty 2 and likes his as well. .



Seems like the bottom line on the Scotty 2 is. .



A. Cut the cowl hole.

B. The UNI can be more restrictive than the AFE element. (May mean better filtration - but thats for another debate).



Guess this has been hashed a few times before on the threads but sometimes you have to see it for yourself. I'm sticking with the Nano (and the cute little blue bungee cords) :-laf:-laf

YUP - if the Nano route can deliver 95% of the benefit for 20% of the cost, why pay more?



The KISS princple at it's finest! :-laf:-laf

 

[PRout]

I'm going with that principle too. . The change has been made and its ALL good again

Added some brass fittings with a valve coming off the frantz to sort of a spigot that Im gonna play around with as an oil sample test port. Kind of fit it in there with the air cleaner installation. . Will see how it works out. Not sure if I like it yet, but hey, keeps us outta trouble! :-laf

If it was a little prettier Id take a pic of it, but its REALLY mickey,, hehe

 

[PRout]

Ok, Amsoil 4510 Dry Air Filter - Frantz bypass filter (complete w/ "Disney" type oil sample spigot)

Just used the fittings that were on hand and ran out of permatex #2 last week and forgot to get more (Doh!) so used teflon tape and havent really cleaned it up yet. Have a couple of clearance issues to deal with, but working in the sun made it enough play time for the day. .

The little brass cap at the end is on finger tight, but think Ill cinch it up just in case the valve fails. The idea is to unscrew the brass cap & turn the valve for an oil sample. I dont care for the location of the valve. On the previous setup it was coming direct off the inlet to the frantz so it wouldnt let crud build up in the pipe. The way this setup is it'll take a little purging before getting a realistic oil sample. . Ok so it doesnt follow the K. I. S. S. doctrine too well.

Lets see if we can attach some pics. .