short ram intake and heat problems-solved?
Thread Starter
Joined: Feb 2005
Posts: 902
From: Long Island
ok-here's what i did-i have a weapon r secret weapon intake and the ram air adapter. every time i open up the hood of my engine if i went to touch my intake tube, it was SOOO HOT. i didn't want a CAI because where i live, there are always huge puddles and stuff when it rains. i remember a couple months ago that it rained so much one afternoon that when i got into my previous car that water almost came in when i opened the door. with a CAI that woulda probably hydrolocked the car if i had turned it on. anyways, back to the hot intake. although i'm drawing air from the fake air dam, when it rains-even slightly, i disconnect the ram air hose from the actual filter in the engine bay. what i always didn't like was the fact that the intake tube would be so hot constantly. i figured that this def wasn't optimal for power gains. i ended up buying thermo shield from thermo tec. it's basically an insulated tape that u can tape onto anything. it's meant for hoses and wires to protect from "radiant heat" or whatever that means. basically, i put it on my intake-although it looked a lot better without the tape, it actually works. after i put on the tape i drove my car to school(about 10 miles from my house), left my car in the parking lot all day in the sun, drove home in rush hour traffic, and then peeled off one of the strips of tape. i was so surprised and happy that under that piece, the intake didn't even really feel warm. i mean-don't get me wrong, the intake wasn't cold, but it def wasn't hot as hell anymore. the tape costs like $15-$20, which is relatively cheap.
The air is in the intake tube for less than 1/10th of a second..not enought time for it to get hot. The only way you will make a difference is by drawing air from a colder source. Remeber that the intake tube is being heated by the the air in the engine compartment. The very same air you are drawing into the engine. In theory, the air in the engine compartment should be the same temp as the intake tube. The metal just feels hotter because it is denser than the air. Kinda like how 130 degree water will burn your skin but 130 degree air wont.
Thread Starter
Joined: Feb 2005
Posts: 902
From: Long Island
i spent $9 off of e-bay by the way moron-also, i've seen that for every 7degrees that it's cooler, it produces 1hp or something like that. why don't u try it before u knock it or are u that close minded. also, u have a k&n-this doesn't apply to u. also its more to prevent heat soak then to add extra hp.
Originally Posted by yellot00tr
i spent $9 off of e-bay by the way moron-also, i've seen that for every 7degrees that it's cooler, it produces 1hp or something like that. why don't u try it before u knock it or are u that close minded. also, u have a k&n-this doesn't apply to u. also its more to prevent heat soak then to add extra hp.
Thread Starter
Joined: Feb 2005
Posts: 902
From: Long Island
isnt the whole point to get colder air in with the intake? denser air(cold air) makes for more power-thus the reason people like cai. my problem with the short ram intake is that although i've added the ram air, the filter and intake tube is still sitting in the engine bay which gets hot. i put a heat shield over the filter and thermal insulation over the intake tube to try and keep the air cooler. granted the air is only in it for a very short amount of time, but if there's any benefit-even in the slightest-for the price i paid, it seems to be worth it to me. don't get me wrong, $9 coulda been spent sooo much better elsewhere- i coulda bought hmmm...... not much actually now that i think about it.
The point is that it doesnt matter how hot the intake tube is. The only thing that will make a difference is the temperature of the air you are pulling into the engine. With SRI, you are pulling air from inside the engine compartment which will be well over 100 degrees. When you are going down the road, its not a big deal because the engine compartment air is being cleared out by the colder outside air. When you are idling or driving slowly, the air in the compartment warms up because it isnt being replaced by cold air. That hot air is heating up everything in the engine compartment including the intake tube, battery, alternator, etc. The only time a short ram is less desirable than a CAI for HP is when you are driving slow - in traffic - or idling....because you are pulling in hot air. Other than that the differences in HP between CAI and SRI are negligible. So in closing...wrapping your intake wont make any difference in HP whether you are driving fast or slow. Its all about the temperature of the air you are drawing into the engine. That is why most manufacturers are making CAI now instead of SRI.
Thread Starter
Joined: Feb 2005
Posts: 902
From: Long Island
2 things-I'M PULLING AIR FROM THE AIR DAM IN THE FRONT OF THE CAR, NOT from the ENGINE BAY. second thing-there has to be some benefit in keeping the tube from getting that hot. the new aem intakes are powdercoated with some zirconia something or something not just to look good, but also for the purpose of preventing heat soak. it's somewhere on their website. i konw what u're gonna say instig-it doesn't matter how hot the tube is, the thing that will make the diff is the temp of the air your pulling into the engine, blah blah blah blah. wrapping the intake and adding the heat shield over the filter wasn't a waste of time in my eyes. this conversation is what's really becoming a waste of time. anyways, that's all i have to say. this post has become as pointless as a vag on a dyke.
Theory's on paper can be debated forever. However, to end this dispute, you would need to measure and record the inlet air temperatures somewhere around the throttle body when connected to a Short Ram that is not covered, and one that is covered. I'd bet that you would find that the air temperature for the protected short ram is cooler. Not because it is drawing in cooler air (its obviously not), but because the air is not being heated up as much through its journey (albeit a very short one) through the intake tube. It may not be a huge difference, but every degree counts. The mod he has demonstrated here is a great counter to the heatsoak issue. And, as for this not applying to a CAI, a CAI is more likely to suffer the effects of heatsoak than a SRI. A CAI has a lot more piping to heat up, and therefore a longer, hotter, path for the air to travel too. There are several members of this board that own K&N's intake that reported suffering from horrendous power robbing heatsoak on hot days.
i spent $9 off of e-bay by the way moron-also, i've seen that for every 7degrees that it's cooler, it produces 1hp or something like that. why don't u try it before u knock it or are u that close minded. also, u have a k&n-this doesn't apply to u. also its more to prevent heat soak then to add extra hp.
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