air intake systems are they worth the money?

[XcumminsX]

The scotty ram air 3 is a better package. It makes the filter enclosed, not just open like the afe set-up, and that torque tubes makes you guys lose power down low... Isnt that where you want your power? The scotty 3 also brings in COOL air from the inside of the fender and from the front of your truck. All i can say is that my buddy who has the afe setup wishes he got a scotty 3 now after seeing mine... He was working on his truck and leaned on his or something and bent up the filter... I gues it makes alot of sense to just leave a filter exposed like that



Get the scotty 3



Nick

 

[XJSuperman]

Nick... you keep saying the torque tube makes you lose power down low... where you gettin' that from??

 

[JEly]

What I didnt like with the TT is that it's very loud not so much the turbo whine just unwanted noise in my opinion and yes from the seat of the pants feel it seemed like the truck wasnt as peppy IMHO



JIM

 

[Greg Boardman-RIP]

To see the bennifits of the torque tube you would have to be pushing 400 HP. With an ez and some 2's you would be there JEly. Then it would feel a little more peppy. I'll be putting my 2's back in soon. I have tried every box out there and there is nothing like DDII's and an EZ for all around pulling power. TST box doesn't even come close.

 

[JEly]

Maybe I will try again once I get the new VA duration box

 

[Greg Boardman-RIP]

My EZ on level 6 is just as good and pulls harder all the way through. I have heard about the Juice prototype and it is hot hot hot..... !

 

[JEly]

When is it going to hit the market? I heard someplace that it was May 1st and that is this week... ... ..... I'm a little nervous about raising the rail pressure too high and that is why I'm looking at the VA



JIM

 

[Greg Boardman-RIP]

VA falls flat on its face at about 15 PSI of boost. I guess it is defueling or something. Makes lots of smoke and noise but doesn't pull. May 1st sounds right to me. Pressure is not that much of an issue. They make more power in the 600 by raising pressure.

 

[DLeno]

Originally posted by Gypsyman



We both know that filters don't increase in flow rate at a set cfm per inch.

I'm not in that camp. In fact, I expect paper media to be reasonably linear.



Here is how linear the Donaldson is -- how well it increases in flow rate at a set cfm per inch. pretty dern linear.



The reason this is an important approximation is to compare flow rates at the same restriction. The donaldson paper filter is listed at a 450CFM device but requires a restriction equal to 6" inches of water to acheive that.



But the care I encorage here in evaluating the numbers, has nothing to do with AFE itslef. it has to do with the fact that in order to support 1800 CFM on the exhaust side, you need to support 600 CFM on the intake side, roughly. then the question becomes, "how much restriction" do you want the intake media to impose at the required flow rate. 8" of water (for the donaldson to flow at 600 CFM) might be realistic I dont' know. Thats where we need to do more work.

 

[JEly]

Greg... ... ... ... . So the new VA duration box falls on its face above 15 PSI? Do you have results (dyno) or is this just SOP feel



JIM

 

[Greg Boardman-RIP]

JEly,

I have run about every box that Doug has written about. I know what works and what kind of works. So far the best setup is an EZ and DDII's. The VA CP3 L2 falls flat on its face. The dyno numbers that they show on the website are totally false. There is no way it makes 125 HP on and HO. No WAY!!!!!

 

[bpenrod]

Greg,

Did you experience the VA falling on it's face? Mine pulls hard well into the red-line. I have it installed on an SO truck and did leave it stacked with my EZ on level 2. I may pull the EZ off and see if it falls off like you say. It may be the VA pulling low and the EZ pulling high... ...

 

[DLeno]

The VA is not designed to be a dyno day box; it is a towing box. that said, however, we REALLY need some independant dyno runs of this thing. Greg, the injectors and EZ is going to dyno different and feel different from the VA. tell us more about how the box doesn't feel like the claimed dyno runs show. we need more real input from those who have driven other solutions! The VA boxes by design fall off at the high end, but I wasn't expecting to see them fall to pieces at 15 psi!

 

[Greg Boardman-RIP]

Well the EZ alone starts to pull real hard at about 1600 rpm's and pulls to around 2900. The VA pulles ok at idle to about 200 rpm's and then the smoke went away and it quit pulling. I didn't ever say the the EZ was a "Dyno Day" box. I just said I think it worked much better all around. I think that the VA and EZ stack is probably the way to go for now. Then you will have the low end of the VA for a second and then the EZ takes over. From what I expierenced the EZ pulled harder all the way. I did not run them stacked and I have pulled the VA for now. Maybe I just like the way Edge goes about putting power to the rear wheels. I have towed in excess of 27,000 lbs with the EZ on my truck and it has never failed me yet. Would that make it a "towing" box?

 

[Gypsyman]

Originally posted by DLeno

I'm not in that camp. In fact, I expect paper media to be reasonably linear.



Here is how linear the Donaldson is -- how well it increases in flow rate at a set cfm per inch. pretty dern linear.

Here is the link that you sent me during our last conversation. 140 cfm change from 6" to 8" and 90 cfm change from 8" to 10" doesn't seem linear to me. I don't have a problem with your reasoning and I totally agree with your formula for required air flow versus exhaust flow. I just don't believe that AFE can flow thier numbers and still filter efficiently. I will keep looking for a dry element solution. I'm out...

 

[DLeno]

holy cow. that the donaldson shows evidence of non-linearity at very high restrictions is of no surprise. and there is no reason to get serious about regression and other linearity tests -- the optical test is sufficient for this purpose: to establish a reality check and way to compare filters on the same footing (restriction).



Greg: good comments. I"ve actually been suspicous (seeing the VA pressure box dyno runs) that the EZ might be a better match. the VA (pressure) box really falls off at the high end.



you can blame the term "dyno day" on me. I use that term to refer to fueling solutions that excel at the upper end and do well at peak HP gains. I use the term "towing box" to refer to those solutions that target gains in the region most driven while towing, at the possible expense of peak HP output. For example, the VA pressure box falls off rapidly at the high end and makes only 30 HP gain over stock peak. definatetly a towing box.

 

[Gypsyman]

Wasn't trying to get serious. I have too much fun trying different bombing ideas on my truck and bouncing bombing ideas off of the members here. Just desperately trying for a dry element solution...



BTW, good luck tomorrow, all the best...

 

[JEly]

Greg... ... Have you tried the Ramifier? If so did you like or dislike that box.

As far as a box and injecters I have heard that with the smaller turbo their is a real concern with the EGT's is that correct?



JIM

 

[Greg Boardman-RIP]

Jim,

No Ramifier yet. Waiting on one now. With the 2's and ez you can always turn the box off and be fine. DD's ez has a level 0 for fooling of boost only. I ran stage 3's and the ez while pulling 12,000 over some serious grades from 29 Palms to Kingman and back. Worst move I ever made was selling the 3's

 

[SamPap]

What ever happened to the BHAF that are so popular on the 2gens? Would it be possible to adapt a BHAF to a 3gen?



I have my old BHAF from my 02 that I am going to try to fit on my new truck. Any words of wisdom or precautions?



Thanks in Advance,

Sam