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Cheers for Injen for getting the intake outside the engine bay, damn them for making it polished aluminum. You get cool air from the fender well, then heat it up because the pipe makes such a great heat sink. I would like to solve that little problem.... and I have 2 ways of doing it... not sure which might be better...
Option 1: Reflective Wrap ... woven fibers that reflect heat, I'd wrap it around the whole pipe and just keep most of the engine heat off of it.

Option 2: Jet Hot Coating - its a fancy ceramic header coating that reduces engine bay heat by insulating the headers... should work the same for intakes... more expensive, but looks better than reflective cloth.

Not sure what to do since I don't know anyone who's ceramic coated an intake.... any guesses on whats gonna happen or which might block more heat?

 
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I know that this isn't gonna help you much, but do you really think that a few degrees will make a difference? I know that heat is an engine's enemy, but IMO it wouldn't be worth the effort. I don't think there would be any noticeable difference.

 
Rep Power: 4646

lol you should just buy the "Tornado!"

lol i know it doesnt do much, but its a built in fan and performance product all in 1..

now were talking..

but in serious terms, i think the wrap will block most heat..

but im not sure, thats my opinion...

 
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Injen says on thier polished intake it doesnt make the air any warmer. Ill find the link to it and post it.

 
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http://www.injen.com/faq.html there, its the 2nd question under the myths. Problem solved.

 
Rep Power: 424

Well, I'm not sure that this is a "few degrees". I just got off the phone with Jet-Hot who says the coating reduces header heat by 25-30%... they see no reason why the intake would show different results. The guy I spoke to said he's never seen data from an intake, but its effective on intercooler piping and says to expect the same results. So if the intake heats up to the engine bay temp... lets say 150 deg F, then a 25% reduction cuts it down to 112.5, which is hardly "a few degrees"... thats a lot.
I'm gonna have to get a thermocouple and stick it in the intake to see what its at right now... then I'll figure out if anything is necessary.... it might be rushing through there so fast that it isn't heating up more than a few degrees above air temp... if thats the case, then it won't do much... but if its heating considerably, then yes, it will make a difference.

 
Rep Power: 424

Polished doesn't, but aluminium does. Look up thermal conductivity of aluminium vs other materials.... Problem not solved.

 
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OK...but the headers are going to be MUCH hotter than the intake...
The headers are routing HOT exhaust gases...The intake is just sucking up cold air.

Not saying you're wrong here...I just don't think that it will be worth the effort.

 
Rep Power: 304

I think you will see more of a difference between Summer and Winter in gains between the hot and cold than if you wrapped your intake with insulation. I tried to pay attention this winter to mine vs the summer driving and I couldn't feel any difference. But on the track when it was cold, I lost alot more traction to the cold suface and tires, so whatever gains I got were actually lost.

If someone dynos this please post the results. Would be interesting to see.

 
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Okay my turn for 2cents. I full believe the 25% claim, but you have taken it out of context.
You have to look at the thermal difference between the Hot/Cold before you take the discount. Plus the Intake is cooled by the incomming air while it is being heated by the radiant heat from the engine. Even if you reduce the Intake pipe temperature 30degrees, you don't actually reduce the Intake air temperture that much since it spends little time in the tube.

 
Rep Power: 374

Its all about thinking outside the box guys...just think if he did 10 things to his engine you normally would think do nothing...he would gain probably 10 hp

 
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THis is not unheard of in the autocross circut. I know of several autocrossers that have theire entire exaust wraped tip to tail. For exaust, you want to keep it as hot as possible till its out of the pipe. why? same reason why people use intercoolers. cold air is dense (Heavy) air, and hot air (or gasses) are light gasses. so the hotter the exaust going out the easier the engine will be able to push that gass out. even if it is just a gain of 1 hp and a little tourque, its worth it when each .001 counts. (Especially with low HP engines.)

As far as wraping the intake? I dont know, but I bet if you do both you will get noticable gains. But who knows, nobodys done it before.


BTW, Boilermaker1. I love your Avatar. NO pylons!!! damn things keep jumping out in front of me.

 
Rep Power: 368

imo the air doesn't stay within the tubbings long enough to get hot.

I suppose initially if you're waiting at the light for awhile it will start to get hot...

but... hmm. nope.

 
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jet coat the inside and outside of the pipeing for max effect... especially near the TB bc have u felt how hot it is after a good run... its more then 150 deg.. i know