Performance mod questions???

[HarmonMotorsports]

On one of my Front Wheel drive Race cars, I use a dryer vent straight to my intake. I don't use an air filter. It seems to make the car lots faster. I recently put a a diode in my air flow sensor and that seemed to help more although the myth section said it doesn't. Does it make since that the two working together helps performance??? If so what is the logic?? Also, I found that disconnecting my alternator helps performance?? I could not tell a difference in using high performance MSD coil packs compared to old stock coils........I just want some opinions and comments on these things that I have been trying and maybe some input on new ideas....actually my buddy just told me to unscrew my oxygen sensor and tape it up in a 20oz plastic bottle to help with performance???

Thanks

[Dave96z34]

[SappySE107]

Please tell me you are joking. By your name, im guessing not but running a motor without a filter is by far the worst thing anyone can do to a motor. Seeing someone with motorsports in their name doing this is not reassuring.

I had to ask brad about the diode....seems that only lets current flow in 1 direction. Yipee, whats that gonna do for a sensor voltage input to the ECM? Are you using a dyno to see the gains, or is it psychological? Its not happening, ill put it that way.

O2 sensor is critical to fuel management. Remove it from the system and you may as well go carb. Do not remove it, period.

[Dave96z34]

This has to be Aaron messing with us and if it is...

[SappySE107]

I dunno, he posted in the trans section as well about a 3.1 jbody.

[Dave96z34]

Hmm Then I dont no.

[dohcfiend]

nah, aaron is still lurking about but i think but ben put him on a leash.....lol.

i do not think he uses that on here, so some of the 60v6 members will not know what that is.

as to this thread, i am speechless. ok moment is over. i am calling it

time of bullshit 12:21 am est

nuff said.

[SappySE107]

If its no BS, hopefully someone learned something today.

Yeah, im not dealing with aaron on this board. Everytime he posts on mymonte, the thread goes to fucking hell. realfierotech.com is he main home as far as I can see. He fits in with those guys better anyway.

[HarmonMotorsports]

About the diode

You said that it doesn't make a difference....but when my car is running and I plug it in the engine sounds deeper and meaner like it is getting more fuel. As far as the air filter, the car has been in over 30 races and over 1000 laps without an air filter. The car has won over 5 races and held the track record for front wheel drives most of this year. I know that running the dryer vent direct without an air filter does make the car go around the track faster and I haven't seen any ill effects ....the car is running better than effer right now. I was just wondering more about the dynamics about direct air into the motor. As far as the oxygen sensor, some guys the drag race said that leaving the wire plugged in but putting it in a plasic bottle with tape makes the sensor send more fuel to the engine. I have not tried this yet. Oval racing these cars are a whole new ballgame to most people. There may never be any answeres to why these things make the car go faster, but the fact is they have worked for me and I cant argue with results.

[SappySE107]

RE: About the diode

Perhaps if you just had your car tuned, you wouldn't be messing with these things to "get more fuel" Also, getting more fuel probably means the computer is cutting your "more fuel".

Are you racing a DOHC or a pushrod? In the trans section you say 3.1 so i want to make sure. Running without an air filter is letting dirt and dust and whatever else go into your cylinders. This will scratch the cylinders, cut your engine's life, and lower your compression due to blowby. Its a lot better to run a k&n type filter in a cold air location and get the same results. Have you tried that, or did you go straight from stock setup to drier vent (eww, ridges cause turbulance, get some smooth tubing), to some cold air location with no filter.

Running the o2 plugged in with it in a bottle or anywhere else is going to throw a code eventually, though maybe not with what you are doing. Its not going to give you more fuel so much as its not going to adjust any fuel what so ever. You will be using the fuel tables as they are programmed, and thats it. Then your IAT will give you more fuel, and im gonna guess you will have more carbon in your combustion chamber than ever before.

[HarmonMotorsports]

Smooth tubbing....

Yeah I agree that smooth tubbing would work a lot better. I do actually have a K&N setting around that I could use. My problem is that I haven't been able to get ahold of any smooth tubbing for my car. I had looked for some in the past at local race shops. Do you know where I could order some that will fit a 3.1 (pushrod) intake??? I'm sure I could modify something but would rather have an exact fit. I have thought about exhast pipe custom bent to fit. I'd rather have that rubber flex hose. When ever I look for something to tune, I always get results for new cavileers and such...nothing for the 3.1 and 2.8.

[z34phoenix]

RE: Smooth tubbing....

get some 3" al piping from jegs or summit and have a shop fab it up. But PLEASE if you have any love for you car or engine put a filter on it. if you feel your not getting enough flow get a T made when you do your intake and run two K&N's but filter it.

Some people have tried that MSD coils and also have not had any gain. the only proven gain is if you had a fault/old warn coil, or if you do a full MSD ignition.

the resistor/diode mod will give a gain in some cases, but only if you use it for a short period of time and remove it before the computer learns that the signal is messed and completly ignores the intake temp.

[Dave96z34]

You have to tune the MSD Ignition to get any power from it. If your racing its a must but you have to no how to tune it. Im still lerning it my self. Right now im just using it for beater gas mileage.

[SappySE107]

Moved to the proper section. Mandrel bent aluminum tubing can be found with google. You can modify a honda CRX setup but that probably isn't a cold air setup.

[EspanolaGuitarista]

Well....

Typically running 12:1 a/f ratio will produce the most power and reduce detonation on higher compression. Use a filter and an air horn. That will smooth the air and get you more horsepower than an open tube.