do this now- air intake temps down

[96discoI]

do this now to your 96 disco or any other vehicle for that matter...
1)relocate cruise pump to just behind air intake box
2)drill 4 inch hole in its place
3)use anything you can find to introduce cold air from the front of the truck thru the hole you drilled to the air
intake box
4)insulate the air intake box as well as the tubing going to it from the fron of the truck
5)insulate them both again with anything that is practical.
6)enjoy running intake temps at least 30% below normal.mine went from 135 to 89.
7)you will feel it in the response and torque power.
8)you are welcomehttps://discoweb.org/forums/images/smilies/clapclap.gif
p.s. i did it with a sink part,some drier vent hose, and a gutter downspout plus a hot water heater insulator for the intake insulation.use your imagination....

 

[Tugela]

Post up some photos when you have the chance.

 

[96discoI]

didnt take any at all but its pretty easy once you figure out where it goes in and how you are going to route it. the air intake box will require some trickery but its worth it. i have been at it for a week or so of small adjustments so its got to be done for the love of it. I have never felt this much power in this truck and i have had it in evry situation for 10 years of daily driving. totally worth the small battles. i will try to do a few pix soon.

 

[ERover82]

You should bypass the throttle body heater and relocate your headlight washer to the intake for ethanol injection.

 

[96discoI]

the temps just go down on the highway too.usually lower than the 89 i said earlier, especially in the morning and night. that air box gets crazy hot. they should have encased the engine in more shielding or some louvres to direct the heat out. and why is that intake trumpet in the engine compartment anyway? shouldnt it be outside of the engine bay? so glad its built this way otherwise what would i do? good luck...hope this finds its way to the right people. haters can hate.i just dont read the stuff...gotta go

 

[96discoI]

sounds like you made a funny...seriously-do it.yes it may get ripped off when i go muddin or spotlightin deers. thats why its made of 20 bucks worth of stuff in my garage....

 

[p m]

I planned to add some heat insulation to the airbox - the air intake temps are insanely high, and the only reason I could come up with was heating of the box off the exhaust. Moreover, it may not be an actual temperature, but the temp of the sensor itself under the radiant heat of the exhaust.

 

[Mongo]

I think we need to organize a group buy on Tornado air intakes and gallon bottles of blinker fluid...

 

[Tugela]

I think we need to organize a group buy on Tornado air intakes and gallon bottles of blinker fluid...

Frank, you are overthinking this. Just pop your Yeti cooler over your air intake and you're good to go.

 

[p m]

Frank, you are overthinking this. Just pop your Yeti cooler over your air intake and you're good to go.

Nick, please take no offense, but for someone seeking advice on how to remove the mudflaps, you're being pretty sarcastic.

Consider this: higher AIT means ECU is throttling down the fuel. If the air temperature is actually cooler than the sensor tells ECU, your engine runs lean all the time. It isn't just lost power - it is running hotter, and getting close to detonation.

I drove down the freeway today on a 90-degree day, and saw AIT readings close to 140F. Is it really _that_ hot in the airbox?

That's even besides/before actually cooling air in the intake.

 

[helievacpilot]

Why stop there?

 

[ERover82]

Is it really _that_ hot in the airbox?

Put a cheap temp probe in the box to find out.

 

[Tugela]

Agreed, that was low hanging fruit and a cheap shot.

But in all seriousness, as a veteran of a headgasket job who is in no hurry to repeat the experience, I appreciate the concerns here.

As for air box temps, I don't know if it really is that hot in there. The engine compartment traps heat and when you're driving at low speed you don't get the same air circulation in there as you would on the freeway. How many times have you popped the hood to be greeted with a wave of hot air rising off the engine? At trail speeds that's what is getting sucked into the air box.

Help me understand your takeaway here. Air going through your air box really is 140? Or are you suggesting that it's lower than the sensor indicates and your engine is compensating based on inaccurate sensor readings?

From one perspective it seems that having cooler air entering your intake is a good thing. It's denser, and therefore better for combustion. This is one reason why people use snorkels (or at least one angle used by people selling them) and why turbocharged engines have intercoolers.

If you do feed cooler air into the airbox, be it through a snorkel or otherwise, why would the intake sensor give skewed readings? Are you saying that if the engine breathes air that is significantly cooler than the sensor suggests the engine is at greater risk of overheating? If so, then how would you address the bias of the signal reaching the ECU? How do you get an accurate air temp reading so the ECU calibrates fuel correctly?

 

[Mongo]

I'm tellin' ya...the tornado air intake will drop air temp by 1 million degrees
To the point that you'll need to heat the incoming air..,

Really





Seriously

















You need to do this...,

 

[p m]

My concern is not low speed crawl, but freeway driving - where most vehicles spend most time.
There are two legit concerns - AIT itself, and AIT measurement being correct.
I guess the OP mostly cared for lowering AIT; I care for both (though, not to the extent of doing anything about it for the last 17 years or so ).

I also heard a suggestion by an independent LR shop to relocate the AIT sensor to behind the grille as means to get a hair more power (at the expense of obvious things) - so it isn't just my idea.

Tornado... from the good old days of JCWhitney...

 

[KyleT]

I've read this there times and still don't understand. There should be no reason to do any of this as the air is drawn from the fender. Away from the heat of the engine. My guess is a heat shield between the air box and exhaust is the most influential improvement.

I'm sure the hole makes the intake sound better though.

 

[p m]

I've read this there times and still don't understand. There should be no reason to do any of this as the air is drawn from the fender. Away from the heat of the engine. My guess is a heat shield between the air box and exhaust is the most influential improvement.

I'm sure the hole makes the intake sound better though.

Kyle, in the D1 the air is not drawn from the fender - it is drawn from engine compartment.

 

[rovercanus]

Kyle, in the D1 the air is not drawn from the fender - it is drawn from engine compartment.

So you're saying that the D2 is better?

 

[fishEH]

I'm going to need pics of this setup, please.

 

[robertf]

I think the 300tdi air horn curves through the rubber plug on the fender.