View Full Version : Best Speed Tip ever for Non Turbo
NJspeeder
02-22-2001, 10:32 PM
A friend and myself did this on his car:
1) Get a short ram air
2) The air filter should end right behind the front cooling fan of your car. Now what you want to do is wire the cooling fan to a switch you can mount inside by the dash. We tried finding a way to hook it up so the cooling fan would always be on when the car is on. However we couldn't find any sort of power wire like that.. So anyway we ended up wiring it to the switch so that he could turn the fan on at will.
3) Once this is done, you can switch on the fan and it should be blowing right up into the ram air. This actually makes your car faster. Probably equivalent to like a pound or two of boost. Doesnt sound like a lot but its definately a noticable improvement.
Have fun!
dsm93talon
02-22-2001, 11:36 PM
hmmmm... not to knock your theories too much or anything, that kind of reminded me of when I had my old Camry, I tried everything to get more air into it. It had a volume air meter instead of a mas so what did I do? I taped the flapper completely open. HAHA, it ran so rich it blew out black smoke and soot all over the driveway. Then I took a computer fan and put it inline of the intake. Yeah right... those things flow about as much as a mouse blowing into a straw.
Two things I would like to point out. First of all, the air being pushed at the open filter like what would happen if we were to put the filter in front of the fan would cause so much turbulance in the air entering the MAS that it would not be able to count the vortecies correctly and would miscount, throwing off the A/F mixture resulting in more than likely... a rich ass mixture.
Also... a pound or two of boost is actually alot more than you probably think. There is no "equivalent" to a pound (or multiple pounds) of boost. to have positive pressure you have to have a closed system. even if you blow air into the TB like that, the engine will still only suck in as much as it needs. You have to FORCE the air into the TB in order to force more air into a smaller area. Which requires a closed system in order to keep the pressure difference the same throught the intake system so that it is ensured the air does in fact go into the cylinders. See what I mean.
I'm not trying to say the idea is completely crap since there are some interesting things out there that just might actually work (www.electricsupercharger.com)but for all practical purposes, I am not inclined to believe that you can 1. gain 1 or 2 psi from that setup and 2. that you can combat the turbulance that would mess up the MAS
Grilf
02-23-2001, 07:52 AM
That's kind of funny, after my car got rearended on Sunday, the cooling fan is ALWAYS on. stupid blazer....
NJspeeder
02-23-2001, 12:37 PM
Hey now that your fan is always on, tell me that it didnt make it faster!
Also in response to the first reply, I disagree with you. Having a ram air and doing 80 down the parkway gives you boost! This is equivalent to the same thing except you dont have to be going fast to already have air blowing up in there. It doesnt make your mixture too rich or fuck up your car. Your fan goes on and off while you drive anyway without making your mixture too rich or suddenly running like crap. It works, we have done it.
Grilf
02-23-2001, 01:45 PM
Haven't driven it since it happened, and it'll probably be fixed by the time I get it back (in 3 weeks)
dsm93talon
02-23-2001, 01:54 PM
the reason it doesn't make it rich is because of the air filter box. if you run an open filter then it will cause the air to be too turbulant which will result in a miscount of the air entering the MAS.
if you are still using the stock airbox, i can assure you that the engine is sucking more air in than the fan can blow at it. maybe at 80mph you'll get a little bit of noticable power i'll agree with that (i have a ram air scoop in my fenderwell) :) but normal driving won't net you much ya know? so yeah.. i'd like to retract my above statement a little bit, I thought you were talking about normal driving conditions.
ps. like i said above... i know for fact that it doesn't give you *boost* so to speak but yeah, it does greatly increase the effiency to a point where it is yeah, acting like a ram setup :)
DSM Storm
02-24-2001, 07:07 AM
No offense but why not just go to a muffler shop, have some piping made to run it through where the stock IC is on the T cars and have a filter in the end? Kind of like Buschurs cold air pipe but for a NT car?
LaFemmeDSM
02-25-2001, 10:35 PM
You would be right with the turbulence IF he has a 1g n/t.
If he has a 2gn/t there really no way it would have the same effect.
The 2g n/t doesn't have a MAS only a MAP sensor it only counts the pressure not the actual air coming in.
dsm93talon
02-25-2001, 11:28 PM
ya learn something new every day :D I didn't know that LaFemme :D I thought the 420a and 4G63 both used MAS's
LaFemmeDSM
02-26-2001, 07:37 AM
No problem :)
mavisky
02-26-2001, 09:31 AM
another thing to remember is that the air you are bolwing at it is the air from right around the headers so its not going to be shit for a cold air intake. and you aren't going to build positive pressure in the engine if it has a way to get back out. if this actually worked then every time you shifted it would close the throttle body and the compressed air would come shooting back out your filter. i don't think that that's happening is it?
TurboMitsu
02-26-2001, 10:00 AM
and here we continue...., the air temperature in your engine bay will not do any good for the performance of your car, especially behind the radiator, also, like it has been stated before you need a closed system to create a positive pressure, look at the typical ram air, everything from the scoop to the carb or the throttle body is sealed, imagine the rushing air at high speeds is like a outlet of the turbo, from there to the tb it's all sealed to keep the pressure that the forced air has created :)
Now the idea of a Cold intake is very possible even with the MAF, all you need to do is to take a original air can, remove the filter but leave the MAF sensor in place, cut a big 3" hole on the bottom of the can, now cut a 4.5" hole in the fender where intercooler pipes go on the turbo car, and then weld or somehow attach a 4" tube to the bottom of the can and route it out to where the intercooler would be on the stock turbo car, and finally get a K&N filter and attach it to the end - if you want to get fancy like me then make a cone-like scoop in the bumper to "ram" the air in at higher speeds :) there, I've done this on my N/T and it worked good, and it sounded great too :) If you do that make sure you have some kind of a plate under the filter to protect it on a rainy days..
LaFemmeDSM
02-26-2001, 10:40 AM
Sorry more ramblings...
Ok, The under hood temp really won't improve performance but the free flowing filter will, just not as much as with the CAI though.:)
On the 1g it is much harder to make a cold air intake because of the space also the turbulence deal already solved in the above post.
On the 2g n/t you have quite a hole where the stock airbox was, in fact enough to stuff a turbo in there.
The CAI on the 2g also runs the pipe all the way down to the open hole in the bumper next to the foglights. Although it works much better with some sort of insulation around it to keep the temp down because the pipe is still affected by underhood temps.
The Iceman is made of some sort of plastic material vs. the AEM being aluminum.
Do not use PVC pipeing to make an intake, it gives off toxic fumes when heated to a certain degree.
Probably more info than anyone wanted to know... :p
mitsuman90
02-26-2001, 04:56 PM
I had an open element K&N on my N/T and when the fan kicked on (I.E. ALL SUMMER) the car ran like CRAP at idle. the MAS did not know what to do with all that air.. At WOT, that was a different story. Now that I have my airbox on there, I have noticed a decrease at higher speeds. So, I will agree with your idea PARTIALLY.. Hey, go for it, man! :)
slickseth
02-26-2001, 09:00 PM
Hmmm... Hot radiator fan air down the intake...Good for performance?
turbo21psi
03-01-2001, 01:27 AM
Slickseth has a point there. Wouldn't you be blowing hot radiator air right into the intake..so much for cold air.
I think I saw in a magazine once when they were dynoing a car and they kept getting different results. On some occations there's a big loss in HP and it turned out that it happens when the fan starts blowing hot air into the intake.
And as far as boost, I've felt the air coming out of the radiator fan and the air coming out of the blow off valve......there's a pretty big difference :)
Also, can the MAP sensor on the 420A handle boost? I know most NA MAP equipped car needs their sensor tricked if you want forced induction.
LaFemmeDSM
03-02-2001, 09:45 AM
Yes the Map sensor has to be tricked into seeing positive pressure. The companys that have aftermarket turbo kits, each have there own type of electronic mods to do that.
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