Short Ram Intake or Cold Air Intake

[jacobuchanan140]

why would you want to use a bisi or hondata gasket? whats the diff between those and oem honda? i know were getting but im curious.....
im in the middle of a mani swap tooo....a6 runners and spacer with the h23 plenum and TB....anxiously awaiting the h23 parts.......

theyre made of phenolic material, aka heat resistant. PM me or aim - jacobuchanan1403 and we'll talk intakes. i've done a fair bit of research on the subject and i can help you out.

[0to60n2weex]

anndd....i read a thread about people wrapping they're intakes with exhaust wrap....would that really do any good???

DONT use exhaust wrap... they make a thermal wrap to keep heat out . ive even seen some guys make a wool or burlap pouch around theirs and stick ice-packs in it lol. but these differences in air temperature might make a fraction of a millisecond difference on 1/4 mile times. the main purpose for aftermarket intake is direct airflow

[1991f22a1]

damn dude thats hardcore with the burlap sack. lols and yes i get the picture. makes a lot of sense to me.

[dannycb7]

i think im going to the SRI cuz its cheapest n i just need it to make my engine look better!!!!

[accord_raffi]

anndd....i read a thread about people wrapping they're intakes with exhaust wrap....would that really do any good???

DO NOT use exhaust wrap. Get heat reflective wrap. Exhaust wrap keeps hot air in and you do not want to keep heat in for your intake. Heat reflective wrap is pretty self explanatory on its function.

[iam_nas]

Sri Ftw!!!

[jacobuchanan140]

DO NOT use exhaust wrap. Get heat reflective wrap. Exhaust wrap keeps hot air in and you do not want to keep heat in for your intake. Heat reflective wrap is pretty self explanatory on its function.

Wrong. Exhaust wrap is a heat BARRIER. That means it keeps heat where it is. if you have a full cold air sucking from outside the engine bay, a wrapped pipe will keep the heat out of the inside of the pipe where the air is. Exhaust wrap wont magically create tons of heat inside you intake just because its exhaust wrap. It only acts as a barrier to keep the heat on whichever side of the wrap its already on. It would be rather pointless to wrap a short ram, as the intake air temperatures are already warm. However with the full cold air, the filter is in a much cooler area than the engine bay and the initial air is also cooler, thus exhaust wrap would protect the length of the pipe from the heat of the engine bay.

[Chirs190E16v]

I would rather have my intake inside my front bumper because i can always make some simple cheap cover to protect it even more. Its not that hard to make a cover to protect the filter.

[David Lundin]

The debate is a bit besides the point, because he wants it to look cool in his enginebay, and a nice SRI looks cooler for sure, a CAI is just a pipe disappearing down somewhere.

If you're looking for power, there's countless dynos showing CAI makes better power, a good SRI isn't bad at all, just not as good as a proper CAI.

And driving through puddles isn't dangerous, unless you're DEAD SET on driving full throttle through *deep* puddles you won't hydrolock, and you shouldn't be driving like that when there's water on the road anyway. Normal driving won't cause it to happen.

[d112crzy]

A CAI will always be better than an SRI, your guy's butt-dyno's are off a bit.

Also, you live in Deltona. It does NOT rain everyday there and there are no huge puddles to worry about, I used to live there. The ONLY time you have to worry about sucking up water is when you go over a big puddle. Shit, I've run without a filter on a rainy day without problems. Learn how to avoid puddles and you'll be fine.

Another thing to note, I've noticed 10-20F degrees cooler intake temps with CAI's over SRI's. Even at highway speeds. If that alone isn't reason enough to get a CAI I don't know what is.

[bcjammerx]

Another thing to note, I've noticed 10-20F degrees cooler intake temps with CAI's over SRI's. Even at highway speeds. If that alone isn't reason enough to get a CAI I don't know what is.

seriously? Cause at 15 or more mph the engine bay is the same temp as outside ambient air

[d112crzy]

seriously? Cause at 15 or more mph the engine bay is the same temp as outside ambient air

You sure about that or is this an assumption? Show me proof of this.

[bcjammerx]

You sure about that or is this an assumption? Show me proof of this.

I'll say the same...

I'll have to find the info...guy did a study, tested temps in the bay at a stop and on the go, found that over 15mph temps were about the same....from what I remember was a small car too...

[d112crzy]

The only way you'd REALLY be able to see the proof is if you had Crome Pro yourself. I could send you the datalog files and compare. Other wise, I'd be posting up a meaningless .1 second screenshot of a datalog.

[bcjammerx]

http://www.nissanclub.com/forums/200...ient-temp.html

that isn't the exact one I was looking for. But similar. His temps were higher than the study I originally read up on. The one I read up on originally was done by a more..."nerdy" dude...but this one seems legit.

*calculation corrected as per A. Graham Bell's 4 stroke performance book I JUST started reading (9/29/09)
7*C (12.6* Fahrenheit) drop in temp equates to 1% up in HP, 7*C (12.6* Fahrenheit) increase in temp equates to 1% lose in HP

That means, on a 130hp engine, when you drop intake temps by 12.6 degrees fahrenheit, you will gain 1% hp (1.3hp)
*end calculation correction*

Not much but it's something.

also http://www.gassavers.org/archive/ind...lts/t-396.html shows how little these numbers can equate to in fuel used.

course they are comparing wai to cai...but the point is still that once moving their temps are near ambient...7 degrees F within...which equates to not even 1hp loss over ambient temp.

note...

http://www.nissanclub.com/forums/eng...mperature.html

(ignoring the 81F spike that was not repeatable as it was actually a re-cal mistake)

he says the same thing, temps rise at stop, and drop while on the go.


this fellow using a cai could get to 1-2F within ambient...he later claims below ambient but I dunno, don't see how that is possible

Either way, you may lose up to 1%...if it goes up by 12.6* F


All the "studies" I can find show that even with CAI (the original one I found was not a cai setup) you will only get within 5-7F WARMER than ambient...this does not even equate to a gain of 1hp.

According to those the cai DOES get cooler air than stock airbox though...but I believe this to be mostly because the air is able to move faster in the LARGE tubing, you are also able to push more air through the LARGE tubing as opposed to the restrictive OEM. More airflow less heat sink.

Either wai CAI setup is good but from what I've found at rest high temps, on the go 1-2F warmer than ambient.


I don't see these as very scientific and I would love to see more testing done...wish I could find that original site dude did a great job...used good equipment too. I should do some measurements of my own.

got a little off question but still on topic

_once I get some chippedness and chromeness I'll hopefully get some numbers...that'll be a while though