M42club.com - Home of the BMW E30/E36 318i/iS
DISCUSSION => General Topics => Topic started by: biglar on April 19, 2007, 02:55:52 AM
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I wanted to get a cone filter/intake with a heat shield. I cant seem to find any m42 kits for the e30.
I only see K&N filters and no intake pipe or etc.
Im just getting this sucker for sound and i dont expect any gains even with the heat shield.
Can anyone direct me? thanks
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just stick with the stock setup, GRM did an article proving that it didn't benefit them at all but robbed them of some power.
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i know but i just wanted to do it for sound. i doubt properly done, with a heatshield, itll rob that much power.
can anyone help me find a kit or an intake pipe? i know i can ghetto rig one but i dont feel like doing that. thanks
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I might have a K&N kit for sale with AFE cone filter. This isn't the cheesy aluminum adapters you see on Ebay but a nice plastic composite adapter that flows from circle to square transition and comes with a mounting bracket that attaches to the factory airbox points. Do a search for the quality of AFE filters. So basically intake adapter, attachment bracket, and AFE filter. Pics to follow later.
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cool. pics would be nice
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keep the stock setup, drop a K&N in it, and get a louder muffler welded in. Probably the same price, may actually get real gains.
Happy sounds are supposed to come from the rear. Once you do that you can get intake later if more sound is needed.
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look up lukas bmw on google you'll get some pics i think
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link to GRM article?
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you could always swiss chees the airbox if you just want sound.
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also that way you can actually control for the sound you want (as in swiss cheese the air box) by the amount of holes you drill. did this in my rx7 was pretty cool the different sounds you could get.
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link to GRM article?
do a search for it. it's something bimmer 1.pdf
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click here (http://grassrootsmotorsports.com/news/category/project-cars/current-project-cars/1991-bmw-318is/) to get to the pdfs. They are at the bottom of the page.
BTW the 318 has one of the loudest stock intakes I have ever heard, and it is fairly free-flowing. I'd pony up for a new exhaust for sound and performance gains before buying a filter and intake.
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you could always swiss chees the airbox if you just want sound.
+1
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Re-reading the GRM May article, the mods add about 15-20 HP. The opening into the stock air box needs to be bigger but the rear of the headlights is about as high up as you can get for cool air without surgery. A chip and exhaust are a $1000. However our good old COP conversion takes plug wires out of the equation. Maybe an ebay chip is real bang for the buck as they are usually rip offs.
1) chip
2) COP conversion
3) more cold air into the filter
= 10-15 HP.
My outside air temp sensor has been hanging loose and I've been experimenting with it. At a red light in Texas it can go up to 115*F behind the spoiler and down to 95* where the stock filter intake is located.
Here's a calculator to play with inlet air temps and HP:
http://www.csgnetwork.com/relhumhpcalc.html
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I humbly question the 10-15hp gain from those components.
Now let's say the car had spark plugs so dead the car could barely idle, the air filter was clogged, fuel injectors so gummed up, ignition wires with very weak conductivity etc.... I can understand the car getting back to a healthy state like it should.
However - to gain those ponies with these simple mods - I have my doubts.
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I humbly question the 10-15hp gain from those components.
Now let's say the car had spark plugs so dead the car could barely idle, the air filter was clogged, fuel injectors so gummed up, ignition wires with very weak conductivity etc.... I can understand the car getting back to a healthy state like it should.
However - to gain those ponies with these simple mods - I have my doubts.
I haven't reviewed the article in awhile, so if I'm wrong, let's just say denis is buying the drinks...
I think it's the old aftermarket (well, dinan --I'll come out and say it) HP gain thing: take a built up engine (or rather, an engine with a supercharger lol), do some mods, put the thing on a dyno and say, "we got 10hp on our car, on a dyno, with these mods".
but extrapolating those gains back to a stock engine, etc etc. its like, 40% of their gains. But, in the ads its like, "this kit gave us xx hp gains on our test car").
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From the May article:
"Our baseline figures of 119.5 horsepower and 118.8 lb.-ft. of torque have been raised to 131 horsepower and 123.9 lb.-ft. of torque." The baseline was a stock E30 as purchased. Actually it was 11.5 HP including 2 HP from the exhaust.There's a link to the May 2006 article at the bottom of this page:
http://grassrootsmotorsports.com/news/category/project-cars/current-project-cars/1991-bmw-318is/
What I question is 131 RWHP from a car that is listed as having 134-136 at the flywheel.
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From the May article:
"Our baseline figures of 119.5 horsepower and 118.8 lb.-ft. of torque have been raised to 131 horsepower and 123.9 lb.-ft. of torque." The baseline was a stock E30 as purchased. Actually it was 11.5 HP including 2 HP from the exhaust.There's a link to the May 2006 article at the bottom of this page:
http://grassrootsmotorsports.com/news/category/project-cars/current-project-cars/1991-bmw-318is/
What I question is 131 RWHP from a car that is listed as having 134-136 at the flywheel.
Wasn't doubting you as a person per se D. Clay. I actually have a copy of the magazine myself. It's just the way the magazines quote stuff sometimes in the name of what they gained before and after leaves a little to be desired. I mean I have posted the dyno of my car with just a Mark D chip and a swiss cheese airbox on a summer day before doing plugs and ignition wires and I'd like to believe the cars were underrated from the factory but meh.