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> Cold Air vs. Short Ram, Advantage and Disadvantage
post Oct 15, 2004 - 9:43 PM
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Shigexile



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Should i go with Short Ram or CAI? I'm in the process of making a CAI but i want to know the advantage and the disavantages (Also for the Short Ram). Like for example wich will be better acceleration or which will be better during the rain, snow. Speeking of rain, i just tried out my CAI in the rain but it lagged more then my regular filter, is that because of the water going in or just that the CAI i made sucks? I need you guy's knowledge.


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post Oct 15, 2004 - 10:21 PM
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Shigexile



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i just tested in again and i notice that the engine shakes a lot now. And the acceleration is horrible. Why is this? confused.gif

This post has been edited by Shigexile: Oct 15, 2004 - 10:23 PM


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post Oct 15, 2004 - 10:37 PM
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Irishflame27

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you dont want water going into the intake because you will Hydrolock the engine, and thats a bad thing... SRI has better acceleration because the air has to travel a lesser distance than a CAI to reach the throttle body and then be combusted... CAI will yeild more power because colder air is denser (containing more oxygen molecules) which intern gives a better air/fuel mix and bigger explosion...they both have downfalls...hope this helps

-Jeremy

This post has been edited by Irishflame27: Oct 15, 2004 - 10:38 PM
post Oct 15, 2004 - 10:44 PM
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Shigexile



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I see. Thank you very much tongue.gif . So the top speed, CAI has an advantage and Acceleration, the Short Ram has the up[per hand huh? I see now. That's why my car lagged. frown.gif I think i will go will SRI.


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post Oct 15, 2004 - 10:45 PM
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Shigexile



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so the ultimate intake will be short distanced but draws in cold air?


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post Oct 15, 2004 - 11:01 PM
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Hanyo

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you might feel it is slower because when you install a cold air intake.. you loose some torque at the lower rpm, in exchange for more hp in the higher rpm..

but in toyota's cold air intakes dont help much, because the stock air boxes are not as restrictive as honda.
post Oct 15, 2004 - 11:07 PM
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Irishflame27

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QUOTE (Shigexile @ Oct 16, 2004 - 3:45 AM)
so the ultimate intake will be short distanced but draws in cold air?

Correct...
post Oct 15, 2004 - 11:18 PM
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Blakout16

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well the best of both worlds is get a downpipe on the SRI and u get cold air still and dont have to worry about getting hyrdolock.... unless u submerge your car lol :-/

*edit* well err im meaning a metal type of pipe welded or sealed onto the end of the SFI and lead down to the lower part of the engine

This post has been edited by Blakout16: Oct 15, 2004 - 11:26 PM


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the 1/4 doesnt have patience for a ST.... so we make them ST-T's so atleast we'll sound good going slow.
post Oct 17, 2004 - 2:18 PM
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Shigexile



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QUOTE (Blakout16 @ Oct 15, 2004 - 11:18 PM)
well the best of both worlds is get a downpipe on the SRI and u get cold air still and dont have to worry about getting hyrdolock.... unless u submerge your car lol :-/

*edit* well err im meaning a metal type of pipe welded or sealed onto the end of the SFI and lead down to the lower part of the engine

i did that but the accelaration wasn't good compared to before so i took a pipe that was about the same length as the rubber one and just put that in. It's good acceleration too! biggrin.gif


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post Oct 17, 2004 - 2:34 PM
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QUOTE (Blakout16 @ Oct 16, 2004 - 4:18 AM)
well the best of both worlds is get a downpipe on the SRI and u get cold air still and dont have to worry about getting hyrdolock.... unless u submerge your car lol :-/

*edit* well err im meaning a metal type of pipe welded or sealed onto the end of the SFI and lead down to the lower part of the engine

Why would you do this?

1) You get closer to the actual engine parts this way. it's hotter air.
2) You already get semi cooled air from the stock air inlet with a SRI
3) You're making some sort of quasi short ram CAI, which will still have torque lag but never suck in cold air.
post Oct 17, 2004 - 2:43 PM
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I think the best setup would be a short ram with a box around it connected to a cold air extension that goes into the fender. not really worth the trouble for 1/2 a hp though biggrin.gif
post Oct 17, 2004 - 2:52 PM
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Akimbo



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Short Ram:
- Cheaper
- Easier install
- Readily Available
- Less horsepower

CAI
- More power
- Harder to route
- Not available for a gt without modifications


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post Oct 17, 2004 - 3:30 PM
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a short ram is going to give you less horsepower then the stock air box would(technically the stock air intake IS A CAI). It will be drawing in warm air, as the stock air box wont. Think about it. the ventilation in the celica is very poor, and its around parts that produce hot air. It is hot as **** where that air filter is going to be on your SRI. Your going to be drawing in hot air to your engine. another words its a downgrade. so it be pointless IMO to get SRI, unless your only motive would be the sound it produces.

I didnt notice any less acceleration lag with my CAI, if anything better pickup and a tad bet more power overall. And it sounds awesome! talk to 95celgt if your intrested.
post Oct 17, 2004 - 3:50 PM
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after I intalled my short ram I had better responce with acceleration. Also my mileage got better by about 1-2 mpg. See profile for pics


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post Oct 17, 2004 - 6:01 PM
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Obviously it's easier to make a SRI, so that's definetly a plus. But at the same time, it's not hard to build a CAI, and it does have greater gains in horse power. It took me about 1.5 hours.


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post Oct 17, 2004 - 6:05 PM
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shid



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QUOTE (ssnake86 @ Oct 17, 2004 - 8:30 PM)
a short ram is going to give you less horsepower

Wrong.

Sorry, but the cold air from the airbox still gets to the shotram, and since it's a lot better built without the resonator, you get more hp; even with a little hot air in there.
post Oct 17, 2004 - 6:32 PM
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97Celica



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I have a SRI on both my 97 and my 92 Celicas...I did it for sound and to see if I actually get better gas mileage...too bad I drive like a jerk so I really can't guage my gas mileage..aha


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post Oct 18, 2004 - 12:36 AM
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just installed my short ram, and i can back shid's comments about it.

there is a duct coming from the wheel well right under the fusebox, that air travels through. so, it's not getting *JUST* hot air.

Besides, it's not the actual filter that gets hot, it's the PIPING that gets to obscene temps.

So, my thinking would be, either way, if you install a short ram OR cai, when the air hits that pipe near the TB, it will be almost the same temp.


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i altered this pic to show you what i'm talking about. see the duct below the fusebox? that has air coming in to it from the fender area, just like the stock airbox setup.
post Oct 18, 2004 - 12:40 AM
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ghostdog



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this is kind of unrelated but I question how much cold air the stock 'cold air' extension gets. if you take it out you'll notice its closed off at the bottom, so how exactly does it work to bring cold air into the airbox?
post Oct 18, 2004 - 12:47 AM
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Blakout16

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its actually gets a good fair amount of cold air comming from it... the pipe leads straight from the lower bottom of the wheel well.... i remember seeing it down there when i did a clutch job.


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the 1/4 doesnt have patience for a ST.... so we make them ST-T's so atleast we'll sound good going slow.
post Oct 18, 2004 - 12:51 AM
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creis



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I have a cold air intake for my GT, its much better then the short ram I have on now, but it dose take in water, i run the short ram in the raining months, and the cold air in the sunny months. it only takes like 10 min to swap.

but yeah the cold air is much better, even from a stop, it feels like it has more poser, and takes off quicker.

I noticed that, the stock intake has no inlet, its just a big closed box. is the air sucked though the plasic due to the pressure?


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post Oct 18, 2004 - 1:35 AM
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shid



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QUOTE (creis @ Oct 18, 2004 - 5:51 AM)
I noticed that, the stock intake has no inlet, its just a big closed box. is the air sucked though the plasic due to the pressure?

Then you're totally missing it smile.gif (or had some sort of weird factory defect!)

If you're looking at the car from the front, the stock inlet is a hole lined in plastic that comes from inside the fender; that leads through the engine bay and to the stock airbox- where the short ram's filter is. It's under the fusebox
post Oct 18, 2004 - 3:54 AM
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playr158



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yea but that box is so long through the fender that its no good....just unbolt it all and trash it.......temporarily unbolt your fuse box and you'll see were the stock tubing went into the wheel well, heat wrap sum piping and run it from the TB into the wheel well and put your filter in there......IMO the best for TRUE cold air

see me car in the sig VVVV below/behind that turn signal is my air filter

This post has been edited by playr158: Oct 18, 2004 - 3:54 AM
post Oct 18, 2004 - 10:24 AM
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shid



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QUOTE (playr158 @ Oct 18, 2004 - 8:54 AM)
yea but that box is so long through the fender that its no good....just unbolt it all and trash it.......temporarily unbolt your fuse box and you'll see were the stock tubing went into the wheel well, heat wrap sum piping and run it from the TB into the wheel well and put your filter in there......

You realize what your describing is almost the exact same thing as the stock airbox- except you have more piping than a SRI now?

One of the reasons the SRI gets more hp than the stock airbox is it doesn't HAVE to pull air from the fender through that piping- it CAN pull hot air from the engine bay. When the car gets moving- cold air gets forced through the old stock piping and the SRI uses that.
post Oct 18, 2004 - 11:29 AM
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QUOTE (shid @ Oct 18, 2004 - 2:35 AM)
Then you're totally missing it smile.gif (or had some sort of weird factory defect!)

If you're looking at the car from the front, the stock inlet is a hole lined in plastic that comes from inside the fender; that leads through the engine bay and to the stock airbox- where the short ram's filter is. It's under the fusebox

I could be missing it, I thought it looked a bit odd when I took it out. but let me clarify that I am talking about the box inside the fender (below the fusebox) thats connected to the "hole lined in plastic". its closed off, there is no way for air to come in.

btw: if you have an injen you probably didn't have to remove it. it sits in the fender so it gets in the way of installing a cai.
post Oct 18, 2004 - 11:50 AM
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shid



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QUOTE (gh0st_d0g @ Oct 18, 2004 - 4:29 PM)
QUOTE (shid @ Oct 18, 2004 - 2:35 AM)
Then you're totally missing it smile.gif (or had some sort of weird factory defect!)

If you're looking at the car from the front, the stock inlet is a hole lined in plastic that comes from inside the fender; that leads through the engine bay and to the stock airbox- where the short ram's filter is. It's under the fusebox

I could be missing it, I thought it looked a bit odd when I took it out. but let me clarify that I am talking about the box inside the fender (below the fusebox) thats connected to the "hole lined in plastic". its closed off, there is no way for air to come in.

btw: if you have an injen you probably didn't have to remove it. it sits in the fender so it gets in the way of installing a cai.

Alright, I thought u were saying how the stock airbox was just sealed off- and didn't have that hole that lead into the fender.

That area is not TOTALLY sealed off- it mostly is to minimize dirt and water in the filter- but it's not completely.

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