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View Full Version : **UPDATE** forced air induction


madmaxdmax
07-24-2008, 11:08 PM
Well...my custom (AKA home made) forced air induction seems to show some definate lower intake air temperatures thus far over the past few weeks. I have noticed an average of 25 degree lower intake air temperature while at highway cruising speed with the under bumper snorkel open versus blocked off. With the snorkel blocked off the intake air temp reading has been as high as 165 degrees when first merging onto the highway. I figure at $1 per degree...not too bad since the total parts cost for this add-on was $25.
I opted to make a cover for the air intake snorkel due to the recent threat of rain here in Phoenix. Yeah...you may question "rain" in Phoenix, but sometimes it actually does a little here now and then.
The under hood temp has yet to be read, but I am going to work on that next. Hopefully this will have a good effect on the upcoming tow season for me with more consistent mileage, power etc.
I would also like to see what my truck does on a dyno blocked/unblocked.

hondarider552
07-25-2008, 04:55 PM
Well...my custom (AKA home made) forced air induction seems to show some definate lower intake air temperatures thus far over the past few weeks. I have noticed an average of 25 degree lower intake air temperature while at highway cruising speed with the under bumper snorkel open versus blocked off. With the snorkel blocked off the intake air temp reading has been as high as 165 degrees when first merging onto the highway. I figure at $1 per degree...not too bad since the total parts cost for this add-on was $25.
I opted to make a cover for the air intake snorkel due to the recent threat of rain here in Phoenix. Yeah...you may question "rain" in Phoenix, but sometimes it actually does a little here now and then.
The under hood temp has yet to be read, but I am going to work on that next. Hopefully this will have a good effect on the upcoming tow season for me with more consistent mileage, power etc.
I would also like to see what my truck does on a dyno blocked/unblocked.
that word just sounds funny to me..
anyway, thats a good inprovement over what it was. i consistantly see ~110-120 intake temps with my S&B and the cover. IMO save yourself ~80 bucks for the dyno run. first run might show an inprovement, but then 2nd and 3rd IMO wouldn't show a gain because everything is getting hot.

madmaxdmax
07-26-2008, 12:22 PM
that word just sounds funny to me..
anyway, thats a good inprovement over what it was. i consistantly see ~110-120 intake temps with my S&B and the cover. IMO save yourself ~80 bucks for the dyno run. first run might show an inprovement, but then 2nd and 3rd IMO wouldn't show a gain because everything is getting hot.

....and thanks for burstin' my bubble.......but it makes sense:Handshake:

James Hess
07-27-2008, 01:14 AM
hey just a little info for yall. wrap you intake tube in fiberglass heat shield wrap or equivelant, it will make a huge difference. i did this on my f-150, i had an s&b cold air with box and i was monitering the IAT with it and i noticed almost 30 degrees cooler from before and after with an underhood pickup just from the wrap. i used the silver adhesive tape and wrapped the tube in that first then wrapped over that with the fiberglass heat wrap. it didnt look bad but some people might not like it but i didnt do it for looks :). just thought id throw that in it WILL make a difference trust me.

so Madmax if your seeing a 25 degree drop on the highway with it open just imagine with it wrapped as well. as you can figure it shields the plastic tube from the heat from the engine and keep the heat soak down.

hondarider552
07-27-2008, 11:13 AM
hey james where can i get this heat wrap at? el home depot?

mattydmax
07-27-2008, 11:16 AM
Watching this one too as the IAT temps in AZ seem to get wayyyyy up there.

blksmok
07-27-2008, 11:17 AM
Watching this one too as the IAT temps in AZ seem to get wayyyyy up there.

so do the OAT's! ):h

James Hess
07-27-2008, 03:40 PM
hey yall you can get this heat wrap at checkers most definatly thats where i got mine. its not the cheapest but i think its worth it. i dont think i paid any more that 40 for a 25 foot roll and it comes in different lengths. some just comes as the roll and you have to buy the bands seaperatly but there like 5 bucks or you can get the kit that includes them. you can also get this stuff at performance shops, from summit, jegs, or maybe even autozone. its pretty common cause its the stuff used to wrap exhaust pipe but it insulates both ways temperature in or out. :thumb:

madmaxdmax
07-27-2008, 04:02 PM
Thanks for the info. Seems that I end up doing more projects in the heat of summer, like deciding to change out the ATF for Transynd and installing the deep pan. Figures I wouldn't think of doing this in winter! I'll wrap an see what temps I obtain. I actually have some left over from when I did the same on my intake on my POS Titan!):h

James Hess
07-27-2008, 04:46 PM
let me know what happens cause i am planning on doing the same to mine. :thumb:

NWTDIESEL
07-27-2008, 05:54 PM
HAHA thanks guys, im bored. Im goin to checkers right now. Ill post some pics tonight.

James Hess
07-27-2008, 06:41 PM
lol sounds good bud.

hondarider552
07-27-2008, 08:03 PM
Thanks for the info. Seems that I end up doing more projects in the heat of summer, like deciding to change out the ATF for Transynd and installing the deep pan. Figures I wouldn't think of doing this in winter! I'll wrap an see what temps I obtain. I actually have some left over from when I did the same on my intake on my POS Titan!):h
and didnt that increase IAT's? :lol:

hondarider552
07-27-2008, 08:03 PM
HAHA thanks guys, im bored. Im goin to checkers right now. Ill post some pics tonight.
wrap your nos bottles, might keep em cooler ):h

James Hess
07-27-2008, 08:57 PM
hey by the way i was thinking about it and in the same sense couldnt you wrap the intercooler exit tube(the one feeding the engine inlet) in the wrap as well cause i felt of mine the other day and it was pretty hot so i figure this couldnt hurt to keep the engine heat off it to keep the air cool after running through the intercooler. by the way i double wrapped my intake tube after putting on the silver tape. i think i am going to do this as well when i wrap my intake i am going to wrap the engine inlet tube from the intercooler and see what happens.

NWTDIESEL
07-27-2008, 10:01 PM
HAHA here it is.............
My buddies and i were bored so we went to checkers.....I want to do my intercooler piping too. I will prob do it next weeknd.

First two pics are mine, intake inlet was a pain because of all the sensors. Turbo inlet wasnt to simple either but it was fun. I will do some logs later but im sure its not a huge diff since we are forced induction. Second two pics are Adams LLY and last pic is Dereks 06 Cummins.

NWTDIESEL
07-27-2008, 10:05 PM
wrap your nos bottles, might keep em cooler ):h

Good thing your not usin Nitrous):h First rule-want the bottles warm to build pressure not cold.:drinking::duh:

James Hess
07-28-2008, 12:36 AM
hey bud looks good :thumb: i am just waiting to do this your going to wrap both sides of the intercooler piping? personally id only wrap the exit side from the intercooler/inlet to the motor to keep engine heat from getting to it. and id leave the inlet side to the intercooler unwrapped to let heat out but try and shield it in some way from the heat of the engine bay.

NWTDIESEL
07-28-2008, 12:42 AM
hey bud looks good :thumb: i am just waiting to do this your going to wrap both sides of the intercooler piping? personally id only wrap the exit side from the intercooler/inlet to the motor to keep engine heat from getting to it. and id leave the inlet side to the intercooler unwrapped to let heat out but try and shield it in some way from the heat of the engine bay.

My thoughts exactly. I was just gonna wait till next weeknd cause my charger/pedistal is coming off, cp3 aswell and hopfully ill be puttin some RDL headers and up-pipes on.

James Hess
07-28-2008, 12:55 AM
you gonna wrap the headers cause i was thinking about doing it when i get some from rick. i wasnt going to wrap them completely but in a criss cross pattern then back over in a criss cross patter to allow for moisture to escape in an effort to keep underhood temps as low as possible and get as much heat through the exhaust as possible.

NWTDIESEL
07-28-2008, 01:50 AM
you gonna wrap the headers cause i was thinking about doing it when i get some from rick. i wasnt going to wrap them completely but in a criss cross pattern then back over in a criss cross patter to allow for moisture to escape in an effort to keep underhood temps as low as possible and get as much heat through the exhaust as possible.

Yup, i will wrap them. I might send them off to get Jet Hot coted but i dont want the down time and i dunno if it will be that much better than a triple wrapped header? What moisture? My down pipe is wrapped and coated and the water just bubbles off that puppy.):h

James Hess
07-28-2008, 11:59 AM
im saying just in case of any moisture that might get caught there when driving in the rain, just bein safe. i dont think that jet hot coating will give as big a diff in heat as wrapping but will definatly give a noticable diff. i was thinking of coating mine and then wrapping but i dont know. might be overkill but i want as cool a temperature under the hood as possible. i was even thinking of wrapping te hot side of the turbo with that foil looking heat wrap that conforms to the shape of what your wrapping. i know that i am going to coat and wrap the headers on my car though.

Johnny Cetane
07-29-2008, 12:59 PM
Me thinks I might need to get this done too for no other good reason than just 'cuz.

James Hess
07-29-2008, 05:50 PM
just cause is why i do alot of things weather i need it or not lol gets me in trouble also. :thumb:

NWTDIESEL
07-29-2008, 07:31 PM
Me thinks I might need to get this done too for no other good reason than just 'cuz.

That was my reason.....):h We were bored so why not go blow 75.00 on the truck?

James Hess
08-06-2008, 12:26 AM
well have you figured out how much lower your temps are?

NWTDIESEL
08-06-2008, 12:34 AM
well have you figured out how much lower your temps are?

Havnt calculated anything yet, my truck runs at 1800 egt deg all day every day so its kinda hard to tell!):h

James Hess
08-06-2008, 12:50 AM
IAT is what i was thinking it should have a small impact on EGT though but im fuzzy on how much.

NWTDIESEL
08-06-2008, 12:57 AM
IAT is what i was thinking it should have a small impact on EGT though but im fuzzy on how much.

Did notice a lil egt drop. I logged my IAT before the wrap, just havnt logged it afterwards yet.

James Hess
08-06-2008, 12:24 PM
cool keep us posted im interested to see how much of a difference there is. :thumb:

LarryJewell
08-06-2008, 04:10 PM
HAHA here it is.............
My buddies and i were bored so we went to checkers.....I want to do my intercooler piping too. I will prob do it next weeknd.

First two pics are mine, intake inlet was a pain because of all the sensors. Turbo inlet wasnt to simple either but it was fun. I will do some logs later but im sure its not a huge diff since we are forced induction. Second two pics are Adams LLY and last pic is Dereks 06 Cummins.

I wrapped mine with the header wrap and an insulated duct blanket from Jegs, it didnt really seem to help with IAT's, I've since switched to the LBZ turbo inlet and a Banks Ram Air for the LBZ , unwrapped and have seen more of an IAT drop with that than with the old one wrapped. FWIW, the old one was a sealed Volant with scoop and the Volant air box was wrapped with insulated tape as well.

madmaxdmax
08-06-2008, 07:14 PM
I wrapped mine with the header wrap and an insulated duct blanket from Jegs, it didnt really seem to help with IAT's, I've since switched to the LBZ turbo inlet and a Banks Ram Air for the LBZ , unwrapped and have seen more of an IAT drop with that than with the old one wrapped. FWIW, the old one was a sealed Volant with scoop and the Volant air box was wrapped with insulated tape as well.

Interesting, new ram air un-wrapped makes that much of a difference vs. an Volant insulated box?

hondarider552
08-06-2008, 07:34 PM
looks good larry! :thumb:

madmaxdmax
08-06-2008, 07:48 PM
Interesting, new ram air un-wrapped makes that much of a difference vs. an Volant insulated box?

Well, at this rate even if it doesn't drop IAT's...still looks high tech :lol:

blksmok
08-06-2008, 09:53 PM
I wrapped mine with the header wrap and an insulated duct blanket from Jegs, it didnt really seem to help with IAT's, I've since switched to the LBZ turbo inlet and a Banks Ram Air for the LBZ , unwrapped and have seen more of an IAT drop with that than with the old one wrapped. FWIW, the old one was a sealed Volant with scoop and the Volant air box was wrapped with insulated tape as well.

Hey Larry,
What are you using for the IC rubber boot?

blksmok
08-06-2008, 09:54 PM
Well, at this rate even if it doesn't drop IAT's...still looks high tech :lol:

And that's worth a couple HP right there. :lol:

LarryJewell
08-07-2008, 09:48 AM
Hey Larry,
What are you using for the IC rubber boot?

I bought the intercooler pipes used, I think they are Banks so I would assume that the boots are what banks sends out with the pipes.

madmaxdmax
08-13-2008, 11:59 PM
And that's worth a couple HP right there. :lol:

Chrome does make it runs faster don't you know !!!):h

NWTDIESEL
08-14-2008, 12:17 AM
I just threw the Banks ram air scoop on my truck:thumb:

madmaxdmax
08-15-2008, 09:02 PM
I just threw the Banks ram air scoop on my truck:thumb:

:nopics:

Crazy_Steve
09-08-2008, 06:55 PM
Wrapping the intake tube does nothing to lower the IAT. Simply because the air is moving much too fast to be phased by the temperature of the tube.

Whatever the filter takes in, thats what the turbo will take in.

madmaxdmax
09-08-2008, 09:17 PM
Wrapping the intake tube does nothing to lower the IAT. Simply because the air is moving much too fast to be phased by the temperature of the tube.

Whatever the filter takes in, thats what the turbo will take in.

....yeah but it looks high tech enough to convince non-diesel owners. ):h

madmaxdmax
09-08-2008, 09:21 PM
The "theory" I believe everyone who has done this is that the under hood temps may tend to heat the intake tube even though the IAT is directly effected by the air passing through the filter element. I figured what the heck....the wrap was $19 and it gave me something to tinker with on the weekend. In a way it's kinda like the way my truck runs much stronger after it has been detailed versus how sluggish it will run when dirty.

James Hess
09-08-2008, 11:54 PM
Wrapping the intake tube does nothing to lower the IAT. Simply because the air is moving much too fast to be phased by the temperature of the tube.

Whatever the filter takes in, thats what the turbo will take in.

Steve i am not trying to argue with you here as i wish not to get in any confrontation, the reson i brought up the wrapping of the intake tube in the first place is because it gave me a substantial drop in intake temps on my gas truck. i figure if it did this with that truck then what would be the difference with these. i can understand where your coming from that the air is moving at a very high speed but i can about guarantee it makes a difference no matter how small and any drop that you might see is worth it to me.

think about this although i have never tried it because i do not have the equipment, if you take a molded tube with the same material that is used on these trucks and wrap half the tube and leave the other open to the heat and place the tube through a box of some sort and have the ends sticking through the sides. heat up the inside of this box to the temps of what a normal operating engine would have fully warmed up and any regular day(taking the day temp to be say 95* outside) under the hood, now pass a thermal sensor through the tube at the speeds(if known) that the air is traveling and i am sure you will get a difference in temps from the wrapped and unwrapped sides.

although the temps may not vary as much as if you had 2 seperate tubes running through the box because there would be heatsoak from the unwrapped side to the wrapped side but do the test as you wish.

this just may be some idiot rembeling on about something way out in left field but this is my 2 cents and if anyone has better knowledge please chime in.

ON EDIT: i do remember that the cold air intake on my ford was a sealed box type with a tube from S&B but i still noticed a substantial drop in temps after wrapping the tube.

hondarider552
09-09-2008, 12:40 AM
i"ll start making my dry ice intake tube, so i get really cold IAT's and lower egts's till it melts :lol: ):h

James Hess
09-09-2008, 01:07 AM
LMFAO thats pretty funny man haha, that idea has crossed my mind a time or two ):h

Crazy_Steve
09-09-2008, 05:18 PM
I see where you're coming from but my theory has to do with this:

A piece of white paper out in the sun will not heat up as buch as black paper, for example.

This is because it is more reflective.

Where you're coming from with the theory of wrapping the intake tube is that the insulation will keep the heat from reaching the actual intake tube, or reflect it away.

Now back to the white & black paper theory. Outside, the white reflects more and does not get as hot.

Underneath the hood is a different story, however. Its like putting both of those pieces of paper in the oven set to 250* and expecting the white paper to be less hot than the black. It doesnt work that way.

In a way, wrapping the intake tube is a step backwards.

Here's why:

When sitting at a red light or in your driveway, the intake tube with the insulating wrap will get just as hot as a non insulated one.

Then when you begin to move, or turn on your truck, the cold air has a chance of cooling the intake tube a little bit as it travels through it, even if it is only a half a degree or so.

Now if the tube is wrapped, that refelctive wrapping insulates that hot tube keeping it hot, just as it is designed to do...insulate. Therefore taking a step backward in our efforts toward cooler air.

madmaxdmax
09-09-2008, 06:21 PM
...At least it looks cool.):h

James Hess
09-10-2008, 12:17 AM
Steve i can understand your point and it is a good one. but in the same sense again take a tube and suspend a thermal sensor and seal the ends wrap one and leave the other the way it is set them both in the "oven" so to speak and see wich one reads higher, my guess the unwrapped and it will be that way the whole time. yes there will be some heat that gets through but not as much as if it were plain exposed.

As i stated in my edit for my other post it could very well have been that my cold air kit was a sealed box type and also not only did i wrap it i taped it first with heat reflective tape then wraped and on top of that i placed a rubber bellow inbetween where the opening for the box was for the fresh air from the fender so it could very well have been a combination of all things but i noticed the drop after i wraped it.

Could there be a gain from taping the tube with a heat reflective tape, wrapping it, then taping again then adding a heat blanket over it along with having a sealed air box with a bellow to further block engine bay heat? more than likely overkill and would look like crap but there is no doubt in my mind it wouldnt make a noticable diff., but i have to say IMO its worth it. weather or not it gives any gain id still like the fact and peace of mind of plain fresh cold air.

Im sure we could go back and fourth as much as we want but im sure every test makes a different result. hell you could even go as far as to plumb in a cryo nozzle into the intake tube for those times when you really need to lay the foot down and get the cold air you need. they make the sprayers to fog the intercooler bars why not plumb one into the tube itself but be sure to have a purge on it.

????? again i could be out in left field and i do not mean to upset you but i see it as it will make a difference cause i saw it first hand. but i do love the conversation/discussion this is bringing around ;).

Plus it sure as shit looks cool LOL im with ya on that one Madmax. no way in hell they wouldnt be googlie eyed when you pop the hood.

Crazy_Steve
09-10-2008, 01:37 AM
Agree to disagree...lol.

I did, however have the intake tube in my Titan wrapped.

I didn't notice a difference personally, except for the fact that it looked cool. ):h

James Hess
09-10-2008, 02:13 AM
LOL still a good discussion :thumb::Handshake:. how often do you come to Tucson?

Crazy_Steve
09-10-2008, 03:22 PM
I live in tucson!!
LOL I'm going to school down here.

James Hess
09-10-2008, 05:57 PM
what side of town you stay on cause i live right down the road from the university<--thats where your schoolin right? i live on grant and richey.

Crazy_Steve
09-11-2008, 12:02 AM
I'm on campus. 6th and highland.

James Hess
09-11-2008, 12:55 AM
yep not too far away from myself for now, i am about to move into our house being built over at valencia and I-10.

Crazy_Steve
09-11-2008, 12:56 AM
Haha, nice...I have no idea where anything is down here! lol

James Hess
09-11-2008, 01:02 AM
i can show ya some pretty cool places that is if your interested in doing the same things i am which is drag races, circle tracks, motorcross stuff, shifter carts, ECT. plus if you like to drink i am a fan of any beer mostly, jack, gentelman jack, jack single barrel, jim beam, makers mark, ECT. and we will have a spare room if you dont feel like driving. gotta LOVE beer pong lol. :thumb:

Crazy_Steve
09-11-2008, 01:24 AM
Haha James, how old are you?

And anytime you wanna play beer pong against some fools i'll come be on your team, I'm horribly good at that game and it almost scares me...lol

And yes, diesel, motocross, beer. My only 3.

James Hess
09-11-2008, 01:40 AM
Im 24 and so is tha wife(she is actually 6 months older than me and gives me shit about her robbing the cradel all the time lol). the drunker i get the better i get at beer pong man always down for a new partner in crime lol.

Crazy_Steve
09-11-2008, 01:43 AM
Haha, sounds excellent.

Did you go to school down here or just lived here? You workin now or still goin to school?

James Hess
09-11-2008, 01:47 AM
LMFAO were chatting on 2 diff. threads sorry yall. naw im in the military(Air Force) and i am a Texas native, i am stationed at Davis-Monthan. been out of school for a while now but i need to get some college going just dont know what i want yet in that area.

Crazy_Steve
09-11-2008, 02:30 AM
Gotcha. Sounds good.

Lemme know if you wanna go to the track or install something, haha..im always here, lol

James Hess
09-11-2008, 01:22 PM
sounds good man. :thumb:

hondarider552
09-12-2008, 12:30 AM
i can show ya some pretty cool places that is if your interested in doing the same things i am which is drag races, circle tracks, motorcross stuff, shifter carts, ECT. plus if you like to drink i am a fan of any beer mostly, jack, gentelman jack, jack single barrel, jim beam, makers mark, ECT. and we will have a spare room if you dont feel like driving. gotta LOVE beer pong lol. :thumb:did i hear shifter carts?!?! Me and ewly were looking for something to do when we were down there a month ago or so.
We went to some secluded resturaunt, small parking lot and great steak, forget the name :(
we cruised speedway for about an hour

hondarider552
09-12-2008, 12:30 AM
Gotcha. Sounds good.

Lemme know if you wanna go to the track or install something, haha..im always here, lolWanna help me wrap my intake tube? :lol:

James Hess
09-12-2008, 12:37 AM
ill definatly help ya wrap it, and yeah the shifter cart track is not even a min drive away from SIR lol. you were right by it when you went, the road you take to get to the track parking just keep going till i think it is your next right. take that road and i think it is the first or second left its a gravel road and pretty long.

they run shifters, they do super moto, and just down that same road if you dont go to the shifter track there is a decentmotorcross track just by the fiar grounds.

By the way my CELL number is (214) 926-6460 so the next time one of yall come to town give a fella a holler and we will hang out.

Crazy_Steve
09-12-2008, 12:45 AM
Good, i'll call you when my shit breaks and i need a ride home...lol

James Hess
09-12-2008, 12:54 AM
HAhaha happy to help out with anything i can. a true friend is always there(if humanly possible) when you need them. :thumb: