k&n new typhoon - Page 20

EM_5 · 4th September 2007, 10:01

Quote:

Originally Posted by chiromikey

not to invalidate your claims but mods associated with sound should be a red flag to specifically avoid believing butt dyno results. sound is such an integral part of "feel" that new exhaust or intakes OFTEN give the user an impression of improved acceleration even when performance has been lost! this sound/feel connection holds true with almost everything we do. for example, part of the best feelings in the world (to me anyways) are associated with sound...like hitting a golf ball or baseball in the sweet spot on your club or bat. anyone that plays knows EXACTLY what i'm talking about. if you were to remove the sound from a purely struck golf shot you would be missing much of the feedback, enjoyment, and reward you typically get. so when we hear this extremely pleasing sound coming from our cars, it's only natural that it would enhance the "feel" we get driving them.

food for thought...

Good point... for once we see eye-2-eye

I still say the most conclusive test is a simple one:

Find a stock M5 vs stock m5 (no Typhoon) and baseline a few runs 30-90, 50-110, etc a few times to get a good feel of which car is faster (if any). This will eliminate the engine production variances of power. If car A is a little faster consistently, then take note of this.

Install the typoon on car B and run it several times if in the same manner when it was stock vs stock. Even with driver error at start, one can see who is pulling on the other post and pre-typhoon.

This all but eliminates the temp, dyno method / shop, humidity, production variances from car-to-car, real-world airflow. You can even swap drivers! But I think driver swapping is unneccesary if one car is clearly and consistently pulling (even if ever so slightly).

SBM6 · 5th September 2007, 07:05

The Typhoon intakes. Installed today and only took a couple of hours by myself and I am by no means mechanically gifted. The install was relatively trouble-free. There were a couple of parts left out of the kit (missing one hose clamp and a couple of bolts but fortunately I reused one of the stock clamps and had the correct size bolts in my tool box. A couple of fitment issues were encountered. (Wiper Fluid hose did not mount completely properly to heat shield and had difficulty reconnecting quick-connect air transfer hose to passenger-side intake) Also, the MAF sensors did not seem to seal quite as well on the new intakes as they did in the stock airboxes. Anyway, they are installed and they sound great as everyone has said. I did not experience any check engine lights or loss of power warnings. I revved throughout the full range

slowly at first until the engine warmed up and then drove around the block a couple of times. TPM then showed low air pressure in passenger rear tire. I pulled back in the drive and used my handy dandy BMW compressor to air up the tire to the proper pressure but as I tightened the valve stem cap back on valve stem, the valve stem broke off.

So, we will have to wait for driving impressions until after tomorrow when I get the wheel repaired. Take care everyone. Will report back soon.

JamesInLV · 5th September 2007, 07:12

GiantPetro...thanks for posting your install impression. Too bad about the valve stem! Best that it didn't pop while you were driving.

As a follow-up, one of our old friends here on the board in Vegas, LVegasKiwi, referred me to a dyno shop here in town. They have a commercial fan unit, but it doesn't sound like it's as fast as the one NobleM400 showed in his picture. I'm going to do the full HP/torque plus fuel-air charting, probably a total of 6 runs if I can convince them to do it. 2 closed hood, 1 open hood, w/ intake and without intake. I don't expect hood-open without intake to have any change, but at the least the proper heat exchange in the engine compartment should be occuring with the hood open.

SBM6 · 5th September 2007, 07:32

James,

Will be interesting to see the results. When do you think you will do your dyno pulls? I just cannot see how these intakes could not help breathing. I wonder how these will compliment my TB's? I really need to get to a dyno. I am terrible. I just don't have the time. I have done these mods and have no idea what impact they have had on real HP... however, with all of the dynos running the gamut with losses, gains, no change, maybe it is better if I never dyno the car and just live with the results of whatever mods I like and choose to go with. There used to be a dyno shop close to my old previous home called the Horsepower Store in Allen/Plano where I did my E39 pulls, but they closed down. Garland, where Darren_Dallas goes is rather far from me now. I will look to see if I can find a close shop. I would like to do it just to see.

DY1103 · 5th September 2007, 17:41

Well here is my update. I installed the Intake last weekend and I must say everything came well packaged and the install was very simple. Was very impressed on how everything fitted extremely well. As for the intake power, it seems as if this modification gives more of a mid range power from my personal driving experience. Heck, for the amount of money paid, it can look nice and I'll still be happy! Like most have said, you really cannot tell what 20hp would feel on a 500hp car. All I can say that you can feel the car shift better and respond better on the mid range specturm of power.

As for the engine light. After the intake was installed on Sat, no engine light came on what so ever. Since monday, the light started to pop up. Ived tried the steps James recommeded however, the engine light still comes up! I simply turn off the car and turn the car back and the check engine light goes away. I find that pretty strange. Not sure if its the hot weather here in Cali if its triggering the MAF sensor or not, but its pretty weird!

As for Sound. I will be extremely honest that I cannot hear any sound from this intake system and let me explain why. This is because I have the meisterschaft exhaust with x-pipe which is already loud enough. I wish I can hear the intake suction noise and even with the Vorsteiner Vented Hood, I still cannot hear it.....

.

As for a dyno run, I will try to get these done ASAP. I have not yet dynoed my car and have been wanting too for the past several month but work has been way too busy. I will have the car dyno next week with the exhaust and the intake together. The second run will have the Evosport pullies (which has been sitting in my garage for the past 2 months). I'll post up my results soon. Thanks

-Darrick

SBM6 · 7th September 2007, 08:40

Finally got my car back after ordering new valve stem for wheel. I have had a chance to really put her through her paces. She definitely pulls harder at speed. I also hear a noticeable difference in the sound. It seems to me that I have an improvement throughout RPM range. Maybe this is due to the throttle bodies in conjunction with the intake. I am not sure. But I now have much more wheel spin from 1 - 2 and 2 -3 and now even have a slight chirp from 3 - 4 which I did not have before. I really need to get on a dyno. I want to install Evo pulleys and headers next. So, I would like to get a baseline before those installs.

SBM6 · 8th September 2007, 08:15

I know other have experienced the CEL issue after installing these intakes. The message I am getting is "Increased Emissions." This is the same message I receive after two weeks of ownership and then my car was in the shop for three weeks. They said it may have been the fuel injectors as they changed both banks. However, they never gave me a definitive answer as to what it was. Special BMW "engineers" were needed and they tried software and many other things. Anyway, it has not happened since until I installed the intakes. Anyone else experience this same message?

Also, I notice now my temp runs about 10 degrees higher than it used to. And it fluctuates constantly between 220 and 235-240. Pre-intakes my temp rested on 210 or slightly (less than a needle width) to the right unless I was driving hard. And the temp seems to be the highest when I am cruising on the highway. Any ideas?

darren_dallas · 8th September 2007, 08:50

Quote:

Originally Posted by GiantPetro

I know other have experienced the CEL issue after installing these intakes. The message I am getting is "Increased Emissions." This is the same message I receive after two weeks of ownership and then my car was in the shop for three weeks. They said it may have been the fuel injectors as they changed both banks. However, they never gave me a definitive answer as to what it was. Special BMW "engineers" were needed and they tried software and many other things. Anyway, it has not happened since until I installed the intakes. Anyone else experience this same message?

Also, I notice now my temp runs about 10 degrees higher than it used to. And it fluctuates constantly between 220 and 235-240. Pre-intakes my temp rested on 210 or slightly (less than a needle width) to the right unless I was driving hard. And the temp seems to be the highest when I am cruising on the highway. Any ideas?

I have the K&N Typhoon Intake system and the Evosport under-drive pulley. I get the "reduced power" warning message in the morning if I start my car in the garage and don't immediately pull out and let it suck in fresh air. If I get the error, I pull the car onto my drive way, turn it off, then turn it right back on and it's totally fine until I park it in the garage again overnight.

With the evosport pulley installed my oil temps are slightly higher, but they've never gone over 220-230 roughly. Right now, with the cooler DFW weather, I'm back at 210 or just a hair to the right.

Cheers,

Darren

905RMP32V1x · 8th September 2007, 14:15

After installing the diff my oil temp was 1 needle width higher. After the intake and the pulley there is no difference.

JamesInLV · 8th September 2007, 16:43

GiantPetro, I don't think the intakes are causing the increased oil temp, but it's interesting that it is the only mod you have made with a before & after effect on temperatures. The pulley kit definitely increased my oil temp to around 220-225 like Darren, but otherwise my car ran a consistent 210 unless I was aggressively driving for a few minutes or longer.

As for the "increased emissions," my understanding is this error generally comes from the O2 sensors. I've had it several times, both before and after the K&N intakes, and I can always remember going to a gas station other than Chevron (which I always try to use here). A couple members have had this error and their fuel was checked, finding above-max ethanol content (I think 15% and 18% were found in those cases). I don't think Chevron is the one and only answer for everyone, I just think fuel may be a little different in every area and this car can simply be more sensitive to it. Even a particular gas station could just have an increased level of ethanol during a particular day or week. The error also doesn't seem to reset itself for a week or two, or perhaps a couple tanks of gas, but it always has reset for me.