 » Site Navigation | | | | » Recent Threads | | | | | 1999 M3 Swap 09-07-2023 10:10 PM 06-01-2024 03:04 PM 7 Replies, 409,841 Views | | | My 318ti build 05-21-2024 04:48 PM 05-28-2024 06:42 PM 1 Replies, 3,632 Views | | | OMG!OMG! 05-28-2024 08:53 AM 05-28-2024 08:53 AM 0 Replies, 1,446 Views | |  |  |  | |  12-13-2005, 11:31 AM | #1 | | Senior Member Join Date: Nov 2005 Location: çî†ÿ øf åNgëL§, CA Posts: 5,314 |  Fan, Intake more HP?
Ok my friend was telling me something about, you can put a fan inside the intake to increase horse power. Supposedly you get 20 more HP and it costs like 15-20 bucks?? I dont really believe him but true or not?? And by the way, i bought my intake  |  |  | | 12-13-2005, 12:43 PM | #2 | | Senior Member Join Date: Jun 2003 Location: Greenville, SC Posts: 9,356 |
Quote: | Originally Posted by 1996Bmw318TI Ok my friend was telling me something about, you can put a fan inside the intake to increase horse power. Supposedly you get 20 more HP and it costs like 15-20 bucks?? I dont really believe him but true or not?? And by the way, i bought my intake | That is something that the folks on bf.c are all giddy about and normally for an I6 motor. First it would be more than $20 since you need to replace the t-stat and add an electric fan. I don't know how much extra hp the inline 6 gets. I have not done the mod and am not sold on it. The fan is already coupled with a clutch which essentially means it is disconnected until it is needed. Does the ti even have the same fan setup? __________________ ...steven
BMW CCA #146825
1996 BMW 328ti • 2003 MINI Cooper S • 2016 M235i
www.bmwcca.org
| | | | | 12-13-2005, 01:39 PM | #3 | | Senior Member Join Date: Aug 2004 Location: state college, pa Posts: 3,431 |
I think he's talking about one of those vortex things that goes inside the intake itself, but maybe an electric version like a computer fan?
It's not going to get the same effect as forced induction. The engine itself is sucking in air (it doesn't just idly waft in), and you'd need a pretty heavy-duty fan to generate any kind of pressure, let alone enough to get you 20hp.
The auto industry is full of snake-oil remedies. In general, if it sounds too good to be true, it usually is, especially where it's a small cost but big benefit. If it were easy, car manufacturers would already have done so to boost their own sales numbers.
Of course, there are limited instances where this isn't the case and a solution is cheap with noticeable gain (such as fogging the airbox, but that's debatable). __________________
I scream, you scream, we all scream for ZOMBIES. | | | | | 12-13-2005, 01:44 PM | #4 | | Senior Member Join Date: Jun 2003 Location: Greenville, SC Posts: 9,356 |
Quote: | Originally Posted by aceyx I think he's talking about one of those vortex things that goes inside the intake itself, but maybe an electric version like a computer fan? | Oh you're right. It's too early for me to be replying to messages. I was thinking about the fan delete mod. $1/horsepower, I'll take 50 please. __________________ ...steven
BMW CCA #146825
1996 BMW 328ti • 2003 MINI Cooper S • 2016 M235i
www.bmwcca.org
| | | | | 12-13-2005, 02:11 PM | #5 | | Senior Member Join Date: Jul 2004 Location: Florida Posts: 1,595 |
My friend got one for his e30, it's called a Tornado or something. Apparently it worked for him, but I didn't think so. I highly doubt it will work for a 4 cylinder. | | | | | 12-13-2005, 03:07 PM | #6 | | Senior Member Join Date: Dec 2004 Location: Muncie, Indiana Posts: 1,551 |
Quote: | Originally Posted by 1996 328ti That is something that the folks on bf.c are all giddy about and normally for an I6 motor.
First it would be more than $20 since you need to replace the t-stat and add an electric fan. I don't know how much extra hp the inline 6 gets. I have not done the mod and am not sold on it.
The fan is already coupled with a clutch which essentially means it is disconnected until it is needed. Does the ti even have the same fan setup? | Ti's all came with electric fans  US spec at least.  As for the tornado thing..my friend bought one and swears it gave him more power. I am skeptical still. | | | | | 12-13-2005, 03:37 PM | #7 | | Senior Member Join Date: Jul 2004 Location: Florida Posts: 1,595 |
Quote: | Originally Posted by AlaskaBlue As for the tornado thing..my friend bought one and swears it gave him more power. I am skeptical still. | That's exactly what my friend with the e30 said and I am the same as you. I do not think much of it. | | | | | 12-13-2005, 03:44 PM | #8 | | doesn't care about you. Join Date: Aug 2004 Location: Denver, CO Posts: 3,925 |
If this really worked don't you think car manufactures would be using it? Come on guys, someone posts this every couple of months. It's a joke, it doesn't work.
If it did work, you would need to provide additional fuel in addition to the forced air. 20hp = 2psi of boost. Running 2psi without additional fuel will actually hurt your engine because it will run lean.
MythBusters says: Busted. __________________ 
'99 Dinan M3 | | | | | 12-13-2005, 04:08 PM | #9 | | aka Stabby Join Date: Nov 2004 Location: Mead, CO Posts: 5,336 |
consumer reports tested the "tornado" and didn't measure any noticeable gains. __________________ 1996 318ti, California package, 267k miles
current mods: bilstein sports, bavauto springs, e30 m3 LCABs, solid metal ball joints, bavauto RSMs w/reinforcements, e30 3.73 LSD & halfshafts, supersprint cat-back exhaust, turner rear sway bar reinforcements, IE poly subframe & RTABs + camber/toe kits, powdercoated e36 32x front calipers, sport mirrors, H&R 28mmF/19mmR sway bars, x-brace, auto solutions SSK w/poly bushing upgrade, BMW CD43 head unit, DICE HD Radio w/iPod integration and "stealth" HD antenna, staggered style 68s, orange electronic TPMS, leather arm rest, JT Designs metal undertray
acquired and awaiting install: heated seat kit, cali top switch relo, lumbar support kit, park distance control kit, heated washer nozzle kit, m-coupe rear subframe, trailing arms, differential, and halfshafts, m-coupe front/rear brakes with master cylinder, under hood light kit, mud flaps, rear sun blind, auto-dimming rear view mirror, tilt steering wheel retrofit, apexcone 5000K HIDs with 55W ballasts
2002 X5 4.4 Sport Package, 53.5k miles
Current Mods: e46 m3 steering wheel | | | | | 12-13-2005, 04:22 PM | #10 | | Senior Member Join Date: Aug 2003 Location: cary, nc Posts: 2,259 |
mythbusters is an awesome tv show! __________________ 1995 318ti Active
Pioneer Speakers [] Aluminum Billet door locks [] ACS Pedals/Deadrest [] ACS Shift Knob / E-Brake Handle [] Clear Corners/Tails/Sides [] Sylvania Exterior Lighting [] Custom CAI [] Dinan Engine Chip [] Dinan Transmission Chip [] H&R Race Springs [] Tokico Illumina Shocks [] BMW X-Brace [] Relocated Lighter Mod [] Custom iPod Mod http://www.cardomain.com/id/robcarync | | | | | 12-13-2005, 04:27 PM | #11 | | Senior Member Join Date: Oct 2005 Location: Watford, herts, England Posts: 805 |
Quote: | Originally Posted by aceyx I think he's talking about one of those vortex things that goes inside the intake itself, but maybe an electric version like a computer fan?
It's not going to get the same effect as forced induction. The engine itself is sucking in air (it doesn't just idly waft in), and you'd need a pretty heavy-duty fan to generate any kind of pressure, let alone enough to get you 20hp.
The auto industry is full of snake-oil remedies. In general, if it sounds too good to be true, it usually is, especially where it's a small cost but big benefit. If it were easy, car manufacturers would already have done so to boost their own sales numbers.
Of course, there are limited instances where this isn't the case and a solution is cheap with noticeable gain (such as fogging the airbox, but that's debatable). | what is fogging the airbox? __________________ 
'96 318ti in Montreal Blue :m-tec sideskirts,m-bootspoiler,clear corners & repeaters .m-tech side mouldings, Magnex Exhaust System, leather armrest, F-15 gear Knob, 18" Evo 2's. Not Finished Yet......
http://www.myspace.com/davep_uk | | | | | 12-13-2005, 04:30 PM | #12 | | doesn't care about you. Join Date: Aug 2004 Location: Denver, CO Posts: 3,925 |
__________________
'99 Dinan M3 | | | | | 12-13-2005, 04:30 PM | #13 | | Senior Member Join Date: Aug 2003 Location: cary, nc Posts: 2,259 |
it is a DIY cold air intake pretty much. it is done by routing 4 inch ductwork from the hole in the airbox down behind the fog light area. i did it to my car, but i decided to just go for the cold air intake. i kinda like the CAI better than the fogged airbox.
do a search in the air filter/intake forum...there is oodles of info! __________________ 1995 318ti Active
Pioneer Speakers [] Aluminum Billet door locks [] ACS Pedals/Deadrest [] ACS Shift Knob / E-Brake Handle [] Clear Corners/Tails/Sides [] Sylvania Exterior Lighting [] Custom CAI [] Dinan Engine Chip [] Dinan Transmission Chip [] H&R Race Springs [] Tokico Illumina Shocks [] BMW X-Brace [] Relocated Lighter Mod [] Custom iPod Mod http://www.cardomain.com/id/robcarync | | | | | 02-05-2006, 05:46 AM | #14 | | Junior Member Join Date: Dec 2005 Location: Mechanicsville, Maryland Posts: 3 |
I'm not sure what kind of fan one can put "inside" the intake, but a simple radial fan will not produce any beneficial increase in air pressure to improve performance. The Tornado device has been around for quite a while and some folks swear by them. I'm not convinced. There is however a product called an E-ram which appears to have some ligitimacy. Wondered if anybody else has heard of it or checked out there web site or knows anyone who has/is using it? This device connects in-line with cone filter and CAI. | | | | | 02-05-2006, 09:10 AM | #15 | | Senior Member Join Date: Mar 2005 Location: Portland Or Posts: 2,666 |
Look up supercharger on ebay, youlll find dozens or hundreds of snake oil salesman selling 20 dollar bilge fans as superchargers for lots of $$. PT barnum was right.... There's one born every minute. I have used a bilge blower to assist in moving air to an intake to make a deep water fording system. Different purpose... Dave __________________
Dave - PDX
1995 318ti - Active Black and Tan.
2005 330xi - Mtech 1 - 6spd - Orient Blue/Black | | | | | |
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