K&N CAI Owners - Please Read

[JetTech]

My truck has the Rockford Fosgate System in it, I doubt your Bose is remotely like the RF system. I really don't know how to turn up the sub output, I would be surprised if that was possible.

Hidden menus????? Tell me more because I'm not aware of any hidden menus. There's a short cut selection that blocks out a lot of options but that's all I'm aware of.

[BigPete]

Originally Posted by JetTech

I had several dyno runs accomplished with the stock setup and the Volant. Just click on my truck pics link and scroll down, you'll see the dyno sheet

Looks like your dino reads......

HP Stock 263.4
HP CAI 263.8

Only a .4 difference ?

I do see the dino with the exhaust mods...almost a 16HP gain with both. It seems that the exhausts gives you the most gains.

[JetTech]

I haven't had it dynoed with the exhaust yet. The dyno sheet your looking at is the one that had us perplexed for a while. We concluded that the ECU wasn't able to compensate quick enough for the intake changes because I was changing them back and forth on the dyno. If you look at the overall test sheet, I believe it was 272 or 274 (something like that), that's the run where the ECU finally learned the Volant and maintained it. We didn't do any first run numbers because the engine will always put out more when it's cold, so the numbers you see are typically after 3 dyno runs sometimes 4 to get to the point where it no longer drops from heat.

The overall gain with the Volant was about 8 or 10 I believe with about 18ft lb. of torque.

[Potroast]

intake will not give you performance gains on these engines. You're taking in more air, but it is hotter air.

[JetTech]

you might want to look at my dyno sheet before you make "matter of fact" statements like that because you are mistaken.....

[37L1]

Originally Posted by Potroast

intake will not give you performance gains on these engines. You're taking in more air, but it is hotter air.

PR:

What do you base your statement on?

Dale has the dyno plus he has earned a lot of cred around here with all of his mechanical how to's and tips.

Thanks,

37L1

[Potroast]

as for my own experiences : I have tried K&N, Injen, and Amsoil. So far the best results were the amsoil w/deckplate mod. None of the intakes I have tested provided any gains -- most have resulted in a net loss of power.

as for other's experiences : I have yet to see positive results from someone I trust. The notion of 16hp is absolutely absurd! Also the 0.4hp claimed earlier is well within margin of error -- I could get that doing nothing to my vehicle.

[JetTech]

you need to look at the right dyno sheet and read my explanation that I wrote to Big Pete.You'll see the Volant does in fact add hp throughout the rpm range. Also I dynoed my wifes Lincoln Aviator with and without a K&N filter and it was a solid 4hp gain just for a drop in filter. Not bad when you consider this means about 6hp at the crank just for a filter.

[Potroast]

Originally Posted by JetTech

you need to look at the right dyno sheet and read my explanation that I wrote to Big Pete.You'll see the Volant does in fact add hp throughout the rpm range.

is the volant a CAI or just a normal intake (like the K&N)?

Also I dynoed my wifes Lincoln Aviator with and without a K&N filter and it was a solid 4hp gain just for a drop in filter. Not bad when you consider this means about 6hp at the crank just for a filter.

That's a drop-in... *VERY* different from a new intake. A drop in can help (read what I said about the amsoil) but a new intake is gonna hurt you unless it's CAI.

[37L1]

Originally Posted by Potroast

is the volant a CAI or just a normal intake (like the K&N)?


That's a drop-in... *VERY* different from a new intake. A drop in can help (read what I said about the amsoil) but a new intake is gonna hurt you unless it's CAI.

Volant is a CAI.

[Potroast]

Originally Posted by 37L1

Volant is a CAI.

then that could provide reasonable gains. Any good intake will increase airflow -- however, the problem that plagues K&N is that it suffers from terrible heat-soak. So although air volume increases, so does intake temperature.

If the volant is a true CAI, then it is a good choice.

[JetTech]

"Never argue with idiots. They'll drag you down to their level and beat you with experience."
-Gambit

I think your signature line is appropriate at this time 37L1

[JMC]

Any good intake will increase airflow -- however, the problem that plagues K&N is that it suffers from terrible heat-soak.

Thats a good point to bring up. I had a K&N plastic intake tube, filter and heat shroud on my Cherokee w/4.7 V8. It made a lot of racket and I actually never could tell that it did anything....until the day I traded it when I swapped back to the factory intake and airbox. I can see how at idle the heat would build up possibly causing the engine to run a little lean but once you get going there is air coming through grill but how much is the question. I would say its tough to get a real world analysis of a CAI (with snorkel) while the truck is sitting still on the dyno. If it shows an improvement on the Dyno you would think it would have a greater improvement from say 0-60 or in the 1/4 mile.

[pciley]

Originally Posted by JMC

Thats a good point to bring up. I had a K&N snorkle, filter and heat shroud on my Cherokee w/4.7 V8. It made a lot of racket and I actually never could tell that it did anything....until the day I traded it when I swapped back to the factory intake and airbox. I can see how at idle the heat would build up possibly causing the engine to run a little lean but once you get going there is air coming through grill but how much is the question. I would say its tough to get a real world analysis of a CAI (with snorkel) while the truck is sitting still on the dyno. If it shows an improvement on the Dyno you would think it would have a greater improvement from say 0-60 or in the 1/4 mile.

Most dynos have a HUGE fan in front of the car being tested, providing plenty of air flow as to not over heat. It would be different if the vehicle was on the dyno just running without air flowing into the engine compartment as normal, but that's not really the case.

By snorkel, do you mean the intake points up away from the engine compartment for partial submersion? (Military Hum-V style)

[JMC]

Im talking about a ram air snorkel coming off the airbox going towards the front end of the truck via in the grill or similar area. I dont think the fan would do the same job as a 60 -70 mph wind being crammed in the intake point.