Best cold air intake?
#1
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Best cold air intake?
As the subject says... looking for the best cold air intake system made for a 94. Don't really want to spend a fortune, but don't want to put something on that's going to draw in a bunch of hot air either...
Thanks
Chuck
Thanks
Chuck
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Pettit's looks very simple but is the best one from a functional standpoint. It allows cooler fresh air to flow over and past the filters and into the engine bay instead of trapping it in a box. This way it always has a steady stream of fresh air to suck in.
N-Tech's is also a very nice unit, but I do believe it is out of production.
N-Tech's is also a very nice unit, but I do believe it is out of production.
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#8
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There is no such thing as a cold air intake. I guarentee you no matter what you buy the air going into that engine is not cold. Unless it's 30 degrees outside. Get some K & N's and call it a day. Don't fall for this load of BS about needing a box for "colder air flow"
#9
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Originally posted by boostedrotor
i have the pettit and i like it....it does make some strange sounds sometimes, like a moo or something.....
i have the pettit and i like it....it does make some strange sounds sometimes, like a moo or something.....
Ryan
#10
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I modified the stock air box like alot of others did. heres my take on it and results:
1) take stock box off.
2) remove foamy stuff from radiator edge
3) cut 2.5 X 6 inch hole in bottom of box (cooresponds to where the hole is you cut
4) remove the plastic piece in the nose of the car near the radiator opening on passenger side
my results:
A noticeably cooler engine during highway or moving, and 1lb of extra boost at high RPM/Speeds.
1) take stock box off.
2) remove foamy stuff from radiator edge
3) cut 2.5 X 6 inch hole in bottom of box (cooresponds to where the hole is you cut
4) remove the plastic piece in the nose of the car near the radiator opening on passenger side
my results:
A noticeably cooler engine during highway or moving, and 1lb of extra boost at high RPM/Speeds.
#11
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cwc
I have the CWC cold air intake. I like it. I know one person who removed the M2 intake because they were having problems with the filters coming off.
My CWC is not as sealed as the M2 but it has never shead a filter and I've just used Aluminum duct tape to seal up gaps.
Interesting assertion by Fd3boost. Can you elaborate?
Yeah mooing is definately the air pump.
The ARC air box looks nice. Is it a cold air intake?
Pictures of the pedit Anyone?
My CWC is not as sealed as the M2 but it has never shead a filter and I've just used Aluminum duct tape to seal up gaps.
Interesting assertion by Fd3boost. Can you elaborate?
Yeah mooing is definately the air pump.
The ARC air box looks nice. Is it a cold air intake?
Pictures of the pedit Anyone?
#12
Originally posted by Fd3BOOST
There is no such thing as a cold air intake. I guarentee you no matter what you buy the air going into that engine is not cold. Unless it's 30 degrees outside. Get some K & N's and call it a day. Don't fall for this load of BS about needing a box for "colder air flow"
There is no such thing as a cold air intake. I guarentee you no matter what you buy the air going into that engine is not cold. Unless it's 30 degrees outside. Get some K & N's and call it a day. Don't fall for this load of BS about needing a box for "colder air flow"
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Thanks
Ok, now I get it. Just get a better IC. Thanks for the insight. As far as IC temps, with the stock IC I'm seeing about 4 or 5 degrees higher. I did just seal up a big hole in my IC duct so maybe temps will be lower now.
#15
Rotary Master
Originally posted by Fd3BOOST
Does 4-5 degrees justify the $300-$400 bucks for the box?
Does 4-5 degrees justify the $300-$400 bucks for the box?
No you really do not need a$300~$400 intake, my car ran just fine with the stock setup.
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I bought my R1 with the Pettit kit on it and seems to work fine but if it were stock I'd probably just do the $40.00 K&N mod the the stock set up and put the money I saved toward something else.
#19
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Originally posted by Johnny
rx7fashion
has a well put together cold box...similar to m2, but build quality is far better
rx7fashion
has a well put together cold box...similar to m2, but build quality is far better
I'm sure as hell not paying $500 for a sheet metal box and a couple filters.
#20
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Originally posted by Fd3BOOST
There is no such thing as a cold air intake. I guarentee you no matter what you buy the air going into that engine is not cold. Unless it's 30 degrees outside. Get some K & N's and call it a day. Don't fall for this load of BS about needing a box for "colder air flow"
There is no such thing as a cold air intake. I guarentee you no matter what you buy the air going into that engine is not cold. Unless it's 30 degrees outside. Get some K & N's and call it a day. Don't fall for this load of BS about needing a box for "colder air flow"
You cant be serious? The 'cold air' name is not referring to the temperature of the air. Its just another name referring to a steady stream of FRESH air. THATS IT!
Just about every high performance motorcycle(and plenty of cars too) uses cold/ram air induction. Why? Cuz it works!
The only thing I will agree to is there is NO particular unit (that I know of) that does exactly that for the FD. Not even the M2. Im currently trying to find some time to make a duct I cld attach to the bottom of the unit, between the rad and frame to allow a better stream of FRESH air coming in than it uses now. Ofcourse I wld also need to place a gasket of some sort between the lid and box but then I cld say its the closest thing to true RAM/fresh air intake out there.....
As for the filters popping off, I havent had that problem yet....I think thats more of a fitment problem(installer) than anythng else.
The one thing I love about the M2 CAI is the room I now have in the engine bay.
Those of you playing with ur OEM set-up...... Take a look at that plastic unit that connects ur duct to the airbox itself. If you notice looking into the hole where the air comes in, it just a dead end. IMO airflow needs direction to run more efficiently if it slams into a wall it just stumbles and causes turbulence which makes it less efficient. I made a shield out of sheet metal and placed it inside that opening to help deflect the air in the right direction. LOL....not sure if it helped matters but it made me feel better knowing the air was traveling in the right direction now.
btw- I got my M2 for less than half the goin rate.....keep ur eyes open in the classifieds, you'd be surprised whats selling for decent prices.
#21
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I have an APEXi Dual intake for my '93. Was considering fashioning a "fresh air" intake to channel in some cooler air into the engine bay, by way of routing some pipes around the edge of the rad, or utilizing the extra oil cooler opening on the passenger's side and "scooping" air through there. Any thoughts on that?
Also, does a vented headlight REALLY do anything?
Thanks.
Also, does a vented headlight REALLY do anything?
Thanks.
#23
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Originally posted by OneKrazyGuy
I modified the stock air box like alot of others did. heres my take on it and results:
1) take stock box off.
2) remove foamy stuff from radiator edge
3) cut 2.5 X 6 inch hole in bottom of box (cooresponds to where the hole is you cut
4) remove the plastic piece in the nose of the car near the radiator opening on passenger side
my results:
A noticeably cooler engine during highway or moving, and 1lb of extra boost at high RPM/Speeds.
I modified the stock air box like alot of others did. heres my take on it and results:
1) take stock box off.
2) remove foamy stuff from radiator edge
3) cut 2.5 X 6 inch hole in bottom of box (cooresponds to where the hole is you cut
4) remove the plastic piece in the nose of the car near the radiator opening on passenger side
my results:
A noticeably cooler engine during highway or moving, and 1lb of extra boost at high RPM/Speeds.
Same story goes for the plastic underbody of the vehicle, it prevents air from going under the car then into the engine bay. Most air entering the engine bay is forced to enter through the radiator (which makes mr engine happy because he's cooler)
Last edited by Barwick; 05-28-02 at 12:48 PM.
#24
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Originally posted by Fd3BOOST
There is no such thing as a cold air intake. I guarentee you no matter what you buy the air going into that engine is not cold. Unless it's 30 degrees outside. Get some K & N's and call it a day. Don't fall for this load of BS about needing a box for "colder air flow"
There is no such thing as a cold air intake. I guarentee you no matter what you buy the air going into that engine is not cold. Unless it's 30 degrees outside. Get some K & N's and call it a day. Don't fall for this load of BS about needing a box for "colder air flow"
The way you do it is to get some air from NOT in the engine bay, somehow, I haven't worked on my TurboII long enough to find out how to do it on mine, and I haven't worked on a 3rd gen besides my friend's for more than a few minutes, so I don't know there. But on Hondas there's a hole in the engine bay that goes down into the fenderwell, and it can suck air from there. Only problem with that is it's fairly low down so if you hit a DEEP (and I mean DEEP puddle, you could suck air into your engine. So they make an air bypass valve for that occasion, it opens up when pressure drops real low in the intake tube (when water enters it) to prevent water from getting in your engine (which is baaaad).
If 20 degrees cooler air enters the intake cone, then it's gonna be (approximately) 20 degrees cooler going into the engine. That is a good thing.
#25
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the belief that warmer air increases the chance of detonation is complete B.S. the temp of air entering teh combustion chamber has a negligible effect on combustion temperatures. However cold air always makes more power. Primarly the A/F ration dictates the temperatures. Our cars have air intake temp sensors. Furthermore, wamrer air is less oxygen, thus a richer mixture. baically if there were no intaek temperature sensor, wamer air woudl decrease combustion temps, and reduce chances of detonation if anything. What you haev to watch out for is a huge drop in intake tempsbefore computer can compensate with more fuel.
I also bet that the temps of the pettit cold-air intake and M2 are the same when driving, porblemw ith open air intakes is that they get hot as hell when stopped.
I also bet that the temps of the pettit cold-air intake and M2 are the same when driving, porblemw ith open air intakes is that they get hot as hell when stopped.