M42club.com - Home of the BMW E30/E36 318i/iS
DISCUSSION => Swaps, Turbos, Buildups => Topic started by: 1991 E30 M42 on December 31, 2008, 06:57:24 PM
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I decided to make my own real cold air intake with heat shield and external air source. It works great too, I'll open the hood after a long hard drive and the engine will be hot and the uper and lower intake will be cold, I drove it to Virginia Tech a couple months ago, and on the way back the throttle body started to ice up and I had to stop and let it warm up. It is made of real carbon fiber and I cut up a hood seal and used that to seal the intake from engine heat. As you can see in the lower picture, it makes a positive seal with the hood. If anyone is interested in one let me know, I might be willing to make some.
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Wow that looks really nice.
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wow, looks great, i wish the M20 had that kind of room, great job.
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wow, looks great, i wish the M20 had that kind of room, great job.
There is plenty of room with the m20 - just as long as you have the radiator with the built in reservoir, no abs and no cruise control :)
(http://members.dodo.com.au/~wawawa/ms8.jpg)
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looks like an m42 radiator, you can also get the 666fab reservoir that mounts on the passenger side.
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ABS is in the way on mine...
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You could work around the ABS fairly easily.
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There is plenty of room with the m20 - just as long as you have the radiator with the built in reservoir, no abs and no cruise control :)
(http://members.dodo.com.au/~wawawa/ms8.jpg)
very true. great job on yours also. I was working on a carbon fiber Cold air box, I designed it in 3d but never got around to actually making one.
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I have abs, the filter sits on top of the of the abs module. I used carbon fiber as apposed to plastic or fiberglass because of its insulation properties
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I love ABS :)
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Ive got a similar airbox but a custom fibreglass one shaped as a big velocity stack and what i also did which helped was tilt the radiator about 20 degrees (with custom mounts) and have a 3" pipe going direct into it and it picks up air from where the kidneys are. With this setup and the shape of it all it keeps air speed up as high as possible.
Definately an increase over K&N in the stock box. Most ppl will tell you otherwise but its worth the effort.
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I decided to make my own real cold air intake with heat shield and external air source. It works great too, I'll open the hood after a long hard drive and the engine will be hot and the uper and lower intake will be cold, I drove it to Virginia Tech a couple months ago, and on the way back the throttle body started to ice up and I had to stop and let it warm up. It is made of real carbon fiber and I cut up a hood seal and used that to seal the intake from engine heat. As you can see in the lower picture, it makes a positive seal with the hood. If anyone is interested in one let me know, I might be willing to make some.
Nice setuP!! ... however with the AFM turned on it's side like that it's changing you fueling because of the weight of the door flaper
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Nice setuP!! ... however with the AFM turned on it's side like that it's changing you fueling because of the weight of the door flaper
Its not changing the fuel, I ran several tests on the dyno with a data logger and if anything changed it was so small that I couldn't see it. I also played around with fuel pressure and found that 43 psi (3bar) was not optimal and picked up 10 horsepower and a falter curve by bumping it up to 50 psi.
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Its not changing the fuel, I ran several tests on the dyno with a data logger and if anything changed it was so small that I couldn't see it. I also played around with fuel pressure and found that 43 psi (3bar) was not optimal and picked up 10 horsepower and a falter curve by bumping it up to 50 psi.
Intresting! there would be a change but like you said very small and I should have mentioned... nice work anyways
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that looks awesom, where did u get the cf from or did u make it urself
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I made the cai myself and purchased the carbon mat from a local place that deals with composites and specialty fabrics.
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Best one I have seen yet. Well done.
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Could you elaborate on bumping up the fuel pressure, and the mods you have on the rest of your system?
Thanks
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Could you elaborate on bumping up the fuel pressure, and the mods you have on the rest of your system?
Thanks
+1
I have a set of the 4-pintle injectors, going in the new engine. interested in your FPR setup.
New Engine specs: (have sourced all parts, hopefully going in next spring)
Post 9/92 M42 base
S50B30 10.8:1 pistons
138mm rods (PM for info, same as MM but WAY cheaper)
M44 Crank
VW lifters
MM single row t-chain (hopefully)
MM lightweight wrist pins
MM Main bearing upgrade
Deltacams regrind
M20 Flywheel/Clutch
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Is that your adjustable FPR in between the MAF and the PS resivior? And where did you get the lid to your oil filter? I like that billet look, but I am forced to deduct 3 points for not wiping it down before the picture :p
Oh ya...Intake kicks ass etc...:)
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Just out of interest what was the temp and weather conditions when you had the throttle body icing problem?
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It was below freezing on a spirited mountain drive, normally the intake would become heat soaked but there is a definite difference between cylinder head temp and intake manifold temp. Previously the only time I ever saw a manifold or throttle body ice up like that was on a blown alcohol powered dragster and on a turbo RX7 with a Webber DCOE45 carb, and in both of those cars they have wet manifolds not dry manifolds like our M42's and other port fuel injection cars.
Ramblin Man, that is an adjustable fpr and the oil filter cap is billet, its made by UUC, and i think they call it the oil center
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Its not changing the fuel, I ran several tests on the dyno with a data logger and if anything changed it was so small that I couldn't see it. I also played around with fuel pressure and found that 43 psi (3bar) was not optimal and picked up 10 horsepower and a falter curve by bumping it up to 50 psi.
Since you use a dyno, could you address this post: http://www.m42club.com/forums/showthread.php?t=9223&highlight=lightweight+flywheel
Particularly, bmwman91's absolute insistence that going to a high-flow air filter and cold air barrier offers no improvement over stock.
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2009 called. It wants its thread back.
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2009 called. It wants its thread back.
ha! :D